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What You'll Be Doing You will be at the forefront of designing the world's first continuous fusion fuel cycle - an opportunity to redefine the future of clean energy for the modern world. You will lead process design and implementation for major systems in our fuel cycle, taking systems from concept to commissioning. 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Senior Engineering Technician, Electrical Engineering at Helion Energy - Everett, WA | OnSite - Senior Engineering Technician, Electrical Engineering Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: As a Senior Engineering Technician at Helion, you will lead the build, integration, and troubleshooting of complex electromechanical systems that support our fusion generators and pulsed power architecture. You will drive execution across system builds while independently diagnosing issues and ensuring hardware meets performance, safety, and quality expectations. You will operate at the interface of design engineering and production, translating evolving designs into executable builds by developing processes, tooling, and

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Senior Process Control Engineer at Helion Energy - Everett, WA | OnSite - Senior Process Control Engineer Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: As a Senior Process Control Engineer, you will lead the development of the control strategy and automation architecture for Helion's fusion fuel cycle systems. You will work at the intersection of process engineering, plant design, and operations to define how a first-of-a-kind process is monitored, controlled, and operated safely and reliably. This role requires an engineer who can quickly understand an evolving fusion fuel cycle process, determine the appropriate control and

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Senior Supplier Development Engineer, Electrical at Helion Energy - Everett, WA | OnSite - Senior Supplier Development Engineer, Electrical Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: We are hiring a Sr. Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. This is an onsite role that reports directly to Senior Manager of Electrical Engineering at our Everett, WA office.

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Procurement Specialist at Helion Energy - Everett, WA | OnSite - Procurement Specialist Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: Due to organization growth, we are seeking multiple proactive and driven Procurement Specialists to join our growing team. You'll collaborate closely with cross-functional teams to procure off the shelf hardware, equipment, services and software, ensuring timely execution of requirements as needed by Helion Energy's technical and production teams. This position offers the opportunity to become involved in a wide range of procurement activities and categories in a quickly growing organization, along with helping

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Senior Manager, Electrical Engineering at Helion Energy - Everett, WA | OnSite - Senior Manager, Electrical Engineering Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: As a Senior Manager of Electrical Engineering, you will lead the development of novel circuit designs and hardware systems for Helion's fusion devices. Your primary responsibility will be to grow and lead a high-performing electrical engineering team by providing mentorship, modeling technical excellence, and driving execution speed. You will solve complex engineering challenges that directly impact machine performance and help deliver clean, low-cost, reliable electricity to the world. This is an

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Principal Capacitor Engineer at Helion Energy - Everett, WA | OnSite - Principal Capacitor Engineer Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing As a Principal Capacitor Design Engineer at Helion, you will lead the design, development, and scaling of custom high-voltage, pulsed-power capacitors that are core to Helion's fusion generators. You will own capacitor architecture from first principles through high-volume manufacturing, driving breakthroughs in energy density, reliability, and cost. You will provide deep technical leadership to engineering, manufacturing, and production teams as Helion transitions from prototype builds to the world's first fusion power plant.

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "f7fefaf7f5328600e3e7574e57672658" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 96 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/principal-capacitor-engineer-f7fefaf7" } }, { "@type": "ListItem", "position": 7, "url": "https://fewerjobs.com/jobs/helion-energy/senior-process-engineer-fuel-cycle-f72ebe76", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Senior Process Engineer, Fuel Cycle", "description": "

Senior Process Engineer, Fuel Cycle at Helion Energy - Everett, WA | OnSite - Senior Process Engineer, Fuel Cycle Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You'll Be Doing You will be at the forefront of designing the world's first continuous fusion fuel cycle - an opportunity to redefine the future of clean energy for the modern world. You will lead process design and implementation for major systems in our fuel cycle, taking systems from concept to commissioning. You'll work with engineers, scientists, and technicians across the company, with a focus on scaling up and integrating these systems into our

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "f72ebe76546b7dcaccfb8edc2c0d254a" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 60 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/senior-process-engineer-fuel-cycle-f72ebe76" } }, { "@type": "ListItem", "position": 8, "url": "https://fewerjobs.com/jobs/helion-energy/manager-controls-development-engineering-f6aec55b", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Manager, Controls Development Engineering", "description": "

Manager, Controls Development Engineering at Helion Energy - Everett, WA | OnSite - Manager, Controls Development Engineering Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: You will lead and build a team of Controls Development and Test Automation Engineers to develop and implement automation, controls and testing standards for Helion's capacitor bank production. In this role, you'll guide the transition from rapid prototyping to high-volume manufacturing, helping advance Helion's mission to deliver clean, sustainable electricity to the world. This is an onsite role that reports directly to the Factory Development Manager at our Everett, WA office.

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "f6aec55b54c41b4ea69af0156e88efc1" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 60 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/manager-controls-development-engineering-f6aec55b" } }, { "@type": "ListItem", "position": 9, "url": "https://fewerjobs.com/jobs/helion-energy/senior-procurement-specialist-f5c19893", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Senior Procurement Specialist", "description": "

Senior Procurement Specialist at Helion Energy - Everett, WA | OnSite - Senior Procurement Specialist Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: We are seeking a proactive and technically minded Procurement Specialist to join our growing team. You'll collaborate closely with cross-functional teams, primarily our mechanical engineering and machining teams to source and procure custom mechanical parts and raw materials. This position offers the opportunity to lead key initiatives that strengthen our supply chain and vendor partnerships. This is an onsite role that reports directly to the Manager of Sourcing and Procurement at our

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "f5c1989387d9ea6ba11dd43126836e73" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 60 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/senior-procurement-specialist-f5c19893" } }, { "@type": "ListItem", "position": 10, "url": "https://fewerjobs.com/jobs/helion-energy/director-of-fusion-plant-engineering-eb7fbb32", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Director of Fusion Plant Engineering", "description": "

Director of Fusion Plant Engineering at Helion Energy - Everett, WA | OnSite - Director of Fusion Plant Engineering Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. About The Role In this role, you will own the design and execution of critical plant systems that make fusion power possible - from radiation shielding and gas handling to thermal management and heat recovery. This role is at the heart of translating fusion physics into practical power generation. You'll build and lead teams that integrate Helion's fusion generators with the systems that extract, move, and manage energy at scale. It's a rare opportunity to

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "eb7fbb321331d6a8f2b44a1dced999d0" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 96 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/director-of-fusion-plant-engineering-eb7fbb32" } }, { "@type": "ListItem", "position": 11, "url": "https://fewerjobs.com/jobs/helion-energy/engineering-manager-fusion-machine-operation-e889d5e4", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Engineering Manager - Fusion Machine Operation", "description": "

Engineering Manager - Fusion Machine Operation at Helion Energy - Everett, WA | OnSite - Engineering Manager - Fusion Machine Operation Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: You will lead the development of engineers and scientists that will bring the most powerful, controlled pulsed-fusion device ever constructed online, to generate electrical power. As a leader within the Research and Development team, you will grow and lead a high-performance operating team in the research and development of fusion technology and experiments, control high-energy systems, and design diagnostics for advanced plasma devices. You will report to the Senior

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "e889d5e47f061c2c49a29f3a5962b70c" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 60 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/engineering-manager-fusion-machine-operation-e889d5e4" } }, { "@type": "ListItem", "position": 12, "url": "https://fewerjobs.com/jobs/helion-energy/special-projects-engineer-e5adc2bd", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Special Projects Engineer", "description": "

Special Projects Engineer at Helion Energy - Everett, WA | OnSite - Special Projects Engineer Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: As a Special Projects Engineer, you will drive the delivery of high-impact projects across Helion's facilities, infrastructure, and operations. These projects are often ambiguous at the outset, technically complex, and time sensitive. You will serve as the lead on these projects-translating engineering requirements into executable plans, liaising between design and execution teams, and ensuring technical accuracy, schedule alignment, and high-quality outcomes throughout the project lifecycle. This is an onsite role that reports

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "e5adc2bd13263620c3bde21a96ac1f2b" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 36 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/special-projects-engineer-e5adc2bd" } }, { "@type": "ListItem", "position": 13, "url": "https://fewerjobs.com/jobs/helion-energy/r-and-d-hardware-test-and-development-manager-e1e8f67e", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "R&D Hardware Test & Development Manager", "description": "

R&D Hardware Test & Development Manager at Helion Energy - Everett, WA | OnSite - R&D Hardware Test & Development Manager Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: As the R&D Hardware Test & Development Manager, you will manage a diverse team of R&D engineers with a broad array of technical backgrounds and expertise, whose mission is to collaboratively support the development, testing, and delivery of the technology needed to provide fusion energy to the world. Your team works closely with all other technical organizations including Engineering, Production, Radiation and Nuclear Safety, and Science. R&D Dev Ops

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "e1e8f67ef921b9695aa5c7681adcfaa1" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 60 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/r-and-d-hardware-test-and-development-manager-e1e8f67e" } }, { "@type": "ListItem", "position": 14, "url": "https://fewerjobs.com/jobs/helion-energy/integration-and-test-engineer-ddc8115d", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Integration and Test Engineer", "description": "

Integration and Test Engineer at Helion Energy - Everett, WA | OnSite - Integration and Test Engineer Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: You will lead cross-subsystem integration and test activities for Helion's current and future fusion generator prototypes. This is a hands-on, role with broad technical scope and responsibility through build and commissioning phases. You will report to a Mechanical Engineering Lead and play a key role in shaping the execution and culture of a growing engineering team. This role is onsite at our headquarters in Everett, WA. You Will: - Own the

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "ddc8115d72bedb12beaafa98eae488a1" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 36 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/integration-and-test-engineer-ddc8115d" } }, { "@type": "ListItem", "position": 15, "url": "https://fewerjobs.com/jobs/helion-energy/supplier-development-engineer-mechanical-dd264bb8", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Supplier Development Engineer, Mechanical", "description": "

Supplier Development Engineer, Mechanical at Helion Energy - Everett, WA | OnSite - Supplier Development Engineer, Mechanical Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: We are hiring a Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "dd264bb8d5e6fce7c58495b982c51de9" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 36 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/supplier-development-engineer-mechanical-dd264bb8" } }, { "@type": "ListItem", "position": 16, "url": "https://fewerjobs.com/jobs/helion-energy/instructional-system-designer-dc2a5847", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Instructional System Designer", "description": "

Instructional System Designer at Helion Energy - Everett, WA | OnSite - Instructional System Designer Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: You will lead the growth and execution of learning experiences within the Research and Development team to support Helion's continued operations and scaling of fusion machines. You'll develop training programs and contribute to cultivating a strong learning culture amongst operators and technicians. This is an onsite role that reports directly to the Research and Development Manager at our Everett, WA office. You Will: - Work alongside the R&D Engineering team to support

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "dc2a5847fd20796d9ea645ece2616266" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 36 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/instructional-system-designer-dc2a5847" } }, { "@type": "ListItem", "position": 17, "url": "https://fewerjobs.com/jobs/helion-energy/principal-materials-design-scientist-d9c7b020", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Principal Materials Design Scientist", "description": "

Principal Materials Design Scientist at Helion Energy - Everett, WA | OnSite - Principal Materials Design Scientist Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: You will play a key role in developing thermomechanical and thermohydraulic models to drive the development of next generation materials and engineered components. In this role, you will apply advanced simulation, physics-based modeling, and materials science principles to design, evaluate, and optimize new materials for demanding thermal and mechanical environments. You will report to the Director of Materials, and this is an onsite role located at our Everett, WA office. You

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "d9c7b0205bdefeee52fb0cf9ab8338e5" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 96 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/principal-materials-design-scientist-d9c7b020" } }, { "@type": "ListItem", "position": 18, "url": "https://fewerjobs.com/jobs/helion-energy/senior-software-engineer-cybersecurity-d91f49cf", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Senior Software Engineer, Cybersecurity", "description": "

Senior Software Engineer, Cybersecurity at Helion Energy - Everett, WA | OnSite - Senior Software Engineer, Cybersecurity Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: As a Cybersecurity Software Engineer focused on product security, you will ensure that the firmware, software, and server infrastructure driving our fusion machines are resilient against attack. You'll work closely with firmware, software, and infrastructure engineers to embed security into every stage of the development lifecycle-reviewing designs, auditing code and dependencies, and integrating security checks into CI/CD pipelines. You'll lead initiatives in encryption, secrets management, and secure authentication to protect sensitive

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "d91f49cfe0eff51b04c2d73b14c1456a" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 60 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/senior-software-engineer-cybersecurity-d91f49cf" } }, { "@type": "ListItem", "position": 19, "url": "https://fewerjobs.com/jobs/helion-energy/manager-experimental-science-d426423b", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Manager, Experimental Science", "description": "

Manager, Experimental Science at Helion Energy - Everett, WA | OnSite - Manager, Experimental Science Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: We are looking for a Manager of Experimental Science to manage experimental diagnostics projects and to lead a team of scientists and engineers in the design, implementation, and testing of devices and technologies aimed at enhancing fusion plasma performance. This is an onsite role that reports directly to the Director of Plasma and Nuclear Science at our Everett, WA office. You Will: - Lead a team of scientists and engineers working on

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "d426423b535a2fca477c9a709c7bf269" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 60 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/manager-experimental-science-d426423b" } }, { "@type": "ListItem", "position": 20, "url": "https://fewerjobs.com/jobs/helion-energy/power-electronics-engineer-d25fc8fc", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Power Electronics Engineer", "description": "

Power Electronics Engineer at Helion Energy - Everett, WA | OnSite - Power Electronics Engineer Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: You will play a critical role in supporting the core electrical energy management systems that power our fusion generators. Our work spans pulsed power delivery to magnetics, power electronics and fusion energy recovery, low voltage controls and networking, and precision sensing in electrically noisy environments. We look for strong electrical engineers who bring deep expertise in a few areas and give them real ownership immediately. You'll focus on the areas where your

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "d25fc8fc6150fd585bbafff762404e02" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 36 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/power-electronics-engineer-d25fc8fc" } }, { "@type": "ListItem", "position": 21, "url": "https://fewerjobs.com/jobs/helion-energy/manager-electrical-engineering-d19fa1e8", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Manager, Electrical Engineering", "description": "

Manager, Electrical Engineering at Helion Energy - Everett, WA | OnSite - Manager, Electrical Engineering Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: You will lead the development of high-voltage circuit designs and hardware systems for Helion's fusion devices. Your primary responsibility will be to grow and lead a high-performing electrical engineering team by providing mentorship, modeling technical excellence, and driving execution speed. You will solve complex engineering challenges that directly impact machine performance and help deliver clean, low-cost, reliable electricity to the world. You will report to the Senior Manager of Electrical Engineering and

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "d19fa1e847dc3292d440d6b212caebcf" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 60 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/manager-electrical-engineering-d19fa1e8" } }, { "@type": "ListItem", "position": 22, "url": "https://fewerjobs.com/jobs/helion-energy/senior-electrical-engineer-hardware-in-the-loop-d1588338", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Senior Electrical Engineer, Hardware in the Loop", "description": "

Senior Electrical Engineer, Hardware in the Loop at Helion Energy - Everett, WA | OnSite - Senior Electrical Engineer, Hardware in the Loop Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: As an Senior Electrical Engineer focused on Hardware-in-the-Loop (HIL), you will design, build, and automate test platforms that allow us to validate our hardware, firmware, and software together in realistic, integrated environments. You'll work across disciplines to create regression tests that exercise real hardware through power supplies, function generators, source meters, and other lab equipment-catching integration issues before they reach the machine. You'll own the development of HIL

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "d158833893fcbdd29b186804eef3db3f" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 60 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/senior-electrical-engineer-hardware-in-the-loop-d1588338" } }, { "@type": "ListItem", "position": 23, "url": "https://fewerjobs.com/jobs/helion-energy/lead-production-technician-ce3f386e", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Lead Production Technician", "description": "

Lead Production Technician at Helion Energy - Everett, WA | OnSite - Lead Production Technician Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: As a Lead Production Technician, you will oversee the assembly of Helion's subassemblies (or module assembly lines) on C shift - Sun-Tue / Sun-Wed | 6:00 PM - 6:00 AM. You will help deliver hardware and coach fellow technicians on the Production Team. You will report directly to one of our Production Supervisors at our Everett, WA office. This position reports directly to the Production Supervisor and serves as the primary point

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "ce3f386eb0663cc09e2d496586f7bdc4" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 60 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/lead-production-technician-ce3f386e" } }, { "@type": "ListItem", "position": 24, "url": "https://fewerjobs.com/jobs/helion-energy/principal-experimental-scientist-c5dba989", "item": { "@context": "https://schema.org", "@type": "JobPosting", "title": "Principal Experimental Scientist", "description": "

Principal Experimental Scientist at Helion Energy - Everett, WA | OnSite - Principal Experimental Scientist Everett, WA | OnSite About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths - values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: We are looking for a Principal Experimental Plasma Scientist to lead the plasma diagnostic effort of Helion's fusion generators. This is an onsite role that reports directly to our Director of Plasma and Nuclear Science at our Everett, WA office. You Will: - Own the end-to-end design and deployment of a comprehensive suite of plasma diagnostics, collaborating closely with physicists, engineers, designers, and data analysts to ensure robust, scalable instrumentation that meets

", "datePosted": "2026-06-10T03:52:15.000Z", "employmentType": "OTHER", "identifier": { "@type": "PropertyValue", "name": "Helion Energy", "value": "c5dba9899b841331a2027a9847fa948b" }, "hiringOrganization": { "@type": "Organization", "name": "Helion Energy" }, "jobLocation": { "@type": "Place", "address": { "@type": "PostalAddress", "addressCountry": "US", "addressLocality": "Everett" } }, "directApply": false, "jobBenefits": "401(k) match", "experienceRequirements": { "@type": "OccupationalExperienceRequirements", "monthsOfExperience": 96 }, "educationRequirements": "no requirements", "url": "https://fewerjobs.com/jobs/helion-energy/principal-experimental-scientist-c5dba989" } } ] } ] }