Hermeus jobs

Mechanical Engineering Intern - Fall 2026 Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Hermeus is seeking talented students with experience in mechanical engineering to join our Fluids Team in Los Angeles. The Fluids Team is responsible for the design and integration of hydraulic systems, fuel systems, and their supporting structural components for cutting-edge hypersonic aircraft. Fall: Around 16 weeks (August - December) Hermeus is seeking talented students with experience in mechanical engineering to join our Fluids Team in Los Angeles. The Fluids Team is responsible for the design and integration of hydraulic systems, fuel systems, and their supporting structural components for cutting-edge hypersonic aircraft. Fall: Around 16 weeks (August - December) Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Responsibilities: - Structural design supporting vehicle subsystems such as hydraulics, fuel systems, propulsion, and avionics

Test Technician / Specialist Los Angeles, CA About The Role: As a Test Specialist at Hermeus you will have the opportunity to build and maintain test assets and infrastructure as well as execute test campaigns that are critical to Hermeus's core development approach of rapid, iterative testing. This position offers a unique opportunity for growth and development while working on groundbreaking technology in a fast-paced, collaborative environment. As part of this team, you will have the opportunity to work on a broad range of vehicle subsystems including hydraulic system, fuel system, mechanisms, high-voltage, mechanisms, airframe structural, and more! About The Role: As a Test Specialist at Hermeus you will have the opportunity to build and maintain test assets and infrastructure as well as execute test campaigns that are critical to Hermeus's core development approach of rapid, iterative testing. This position offers a unique opportunity for growth and development while working on groundbreaking technology in a fast-paced, collaborative environment. As part of this team, you will have the opportunity to work on a broad range of vehicle subsystems including hydraulic system, fuel system, mechanisms, high-voltage, mechanisms, airframe structural, and more! Responsibilities: - Fabricate, build, and commission various test assets to meet company needs ranging from test rigs and stands up to larger-scale test cells and facilities. - Modify and perform upgrades to existing test assets to expand capability or meet program objectives. - Execute tests in a safe, efficient, and precise manner to meet test objectives and deliver a high-quality test

Lead Avionics Engineer Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. We are seeking a highly skilled and experienced Lead Avionics Engineer to join our dynamic team and contribute to the development of the next generation of hypersonic vehicles. As a Lead Avionics Engineer at Hermeus, you will play a pivotal role in leading the design, analysis, and testing of electrical systems for our hypersonic vehicles. You will collaborate closely with a multidisciplinary team of engineers to ensure the safe and efficient operation of our electrical systems. This position offers a unique opportunity to work on groundbreaking technology in a fast-paced and collaborative environment. We are seeking a highly skilled and experienced Lead Avionics Engineer to join our dynamic team and contribute to the development of the next generation of hypersonic vehicles. As a Lead Avionics Engineer at Hermeus, you will play a pivotal role in leading the design, analysis, and testing of electrical systems for our hypersonic vehicles. You will collaborate closely with a multidisciplinary team of engineers to ensure the safe and efficient operation of our electrical systems. This position offers a unique opportunity to work on groundbreaking technology

Operations and Test Engineering Intern - Fall 2026 Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. At Hermeus, we are constantly iterating and integrating. We test early and often to minimize technical and program risk. We build the test campaigns that support our full range of test programs spanning development, operational and certification testing. Fall: Around 16 weeks (August - December) At Hermeus, we are constantly iterating and integrating. We test early and often to minimize technical and program risk. We build the test campaigns that support our full range of test programs spanning development, operational and certification testing. Fall: Around 16 weeks (August - December) Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Responsibilities: - Work alongside experienced engineers to support the planning, execution, and analysis of flight tests, gaining direct exposure to real-world

Propulsion Test Engineering Intern - Fall 2026 Jacksonville, FL Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. At Hermeus, we are constantly iterating and integrating. We test early and often to minimize technical and program risk. We build the test campaigns that support our full range of test programs spanning development, operational and certification testing. As a Propulsion Test Engineering Intern, you will gain hands-on experience working with high-performance propulsion systems, supporting engine and system-level testing. You will work closely with engineers and technicians to set up test campaigns, monitor data, and troubleshoot issues, directly contributing to Hermeus' hypersonic development efforts. Hermeus is seeking talented students to join our Propulsion Test team in Jacksonville for the Spring & Summer 2026 semesters. Fall: Around 16 weeks (August - December) At Hermeus, we are constantly iterating and integrating. We test early and often to minimize technical and program risk. We build the test campaigns that support our full range of test programs spanning development, operational and certification testing. As a Propulsion Test Engineering Intern, you will gain hands-on experience working with high-performance propulsion systems, supporting engine and system-level testing. You will work closely with engineers and

Engineering Application Support Engineer - NX/Teamcenter Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Hermeus is scaling its engineering systems following the deployment of Siemens NX and Teamcenter. As we move from go-live into stabilization and continuous improvement, we are building a dedicated capability to support engineering teams and ensure system reliability, usability, and performance.This is not a traditional help desk role. This position sits at the intersection of CAD, PLM, and engineering workflows, focused on diagnosing system issues, improving system behavior, and enabling engineers to move faster with confidence. About The Role: As an Engineering Application Support Engineer - NX/Teamcenter, you will be the frontline for engineering productivity - resolving issues, identifying systemic gaps, and driving continuous improvements across the NX and Teamcenter environment. Hermeus is scaling its engineering systems following the deployment of Siemens NX and Teamcenter. As we move from go-live into stabilization and continuous improvement, we are building a dedicated capability to support engineering teams and ensure system reliability, usability, and performance.This is not a traditional help desk role. This position sits at the intersection of CAD, PLM, and engineering workflows, focused on diagnosing system issues, improving

Structures Integration Technician Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. The Manufacturing Team at Hermeus are the boots on the ground. We have a vast array of experiences ranging from welding, additive, tube bending, machining, integration, and avionics. We are a lean team who are responsible for building a vehicle that will fly. We provide crucial design feedback to our engineering team and can rapidly iterate on design and assembly. As a Structures Integration Technician, you will play a critical role in the hands-on assembly, integration, and testing of flight and ground hardware. This role requires someone equally comfortable working across structures, fluids, inventory, and manufacturing tasks, as needed. You'll be expected to bring deep technical expertise, excellent judgment, and a self-starting attitude to a highly collaborative team in a fast-paced, low-oversight environment. We're seeking someone who's open-minded, adaptive, and eager to contribute across domains to help bring complex systems from concept to reality. The Manufacturing Team at Hermeus are the boots on the ground. We have a vast array of experiences ranging from welding, additive, tube bending, machining, integration, and avionics. We are a lean team who are responsible

Senior Software Simulation Engineer Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. About The Role: We are seeking a highly motivated and experienced Senior Software Simulation Engineer to join Hermeus, a hypersonic aircraft startup company. As a Senior Software Simulation Engineer, you will be responsible for developing and deploying real-time simulation environments that support the design, verification, and validation of aerospace flight control and avionics systems. Leveraging Model-Based Design (MBD) principles, you will use MATLAB/Simulink and automated code generation tools to translate dynamic system models into executable real-time code for Hardware-in-the-Loop (HIL) and Software-in-the-Loop (SIL) testing. This role bridges the gap between control system design and embedded software implementation, ensuring accurate representation of aircraft dynamics and system behavior under simulated flight conditions. You will collaborate with multidisciplinary

Chief Engineer - Airbreathing Propulsion Test Jacksonville, FL Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. We are seeking a 1st principles driven, experienced, and owner mindset Chief Engineer to lead the design, construction, and activation of an expansion at our next-generation airbreathing propulsion test facility, HEAT, located in Jacksonville, FL. This facility expansion will play a critical role in advancing hypersonic and other advanced propulsion technologies vital to Hermeus' roadmap, national security, and aerospace innovation. As the Chief Engineer, you will serve as the technical authority and strategic lead responsible for the end-to-end development of the test facility-from concept and requirements definition through commissioning and operational readiness. This role will require close collaboration with internal teams, external contractors, and DoD stakeholders to ensure that the facility meets current and future propulsion testing needs. We are seeking a 1st principles driven, experienced, and owner mindset Chief Engineer to lead the design, construction, and activation of an expansion at our next-generation airbreathing propulsion test facility, HEAT, located in Jacksonville, FL. This facility expansion will play a critical role in advancing hypersonic and other advanced propulsion technologies vital to Hermeus' roadmap, national security, and aerospace innovation.

NX Teamcenter PLM Support Engineer Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. About The Role: As anMRO PropulsionEngineeryou will take ownership of the maintenance, refurbishment, and overhaul (MRO)lifecycle of our F100engines-including acceptance testing. This is a hands-on, high-impact role whereyou'llwork side-by-side with passionate engineers and technicians to keep our propulsion systems performing at their best. If you want to learn fast, solve hard problems, and contribute directly to hypersonic capability, this is the place for you About The Role: As anMRO PropulsionEngineeryou will take ownership of the maintenance, refurbishment, and overhaul (MRO)lifecycle of our F100engines-including acceptance testing. This is a hands-on, high-impact role whereyou'llwork side-by-side with passionate engineers and technicians to keep our propulsion systems performing at their best. If you want to learn fast, solve hard problems, and contribute directly to hypersonic capability, this is the place for you Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the

Lead Propulsion Component Engineer Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. As a Lead Propulsion Component Engineer you will own the development of flight-critical propulsion components-including valves, actuators, and high-performance mechanical systems operating in extreme thermal and pressure environments. This is a player-coach role: you will directly design and deliver hardware while leading a small team of engineers. You will own components from clean-sheet design through test, qualification, and flight, and your hardware will move quickly from concept to real-world operation. As a Lead Propulsion Component Engineer you will own the development of flight-critical propulsion components-including valves, actuators, and high-performance mechanical systems operating in extreme thermal and pressure environments. This is a player-coach role: you will directly design and deliver hardware while leading a small team of engineers. You will own components from clean-sheet design through test, qualification, and flight, and your hardware will move quickly from concept to real-world operation. Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern

Senior Avionics Electrical Engineer Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. As Senior Avionics Electrical Engineer at Hermeus, you will be responsible for the design, testing, and integration of GNC systems, electrical hardware, control software, power distribution, and RF communications for our hypersonic vehicles. As Senior Avionics Electrical Engineer at Hermeus, you will be responsible for the design, testing, and integration of GNC systems, electrical hardware, control software, power distribution, and RF communications for our hypersonic vehicles. Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Responsibilities - You will shape the future of commercial supersonic and hypersonic flight. Our team is responsible for the design, testing, and integration of GNC systems, electrical hardware, control software, power distribution, and RF communications. - The Senior Electrical Engineer position requires system-level architects who are also experts in

Avionics Shop Manager Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. As a Manager of the Avionics Build you will have a unique opportunity to build and lead a cross-functional team of individuals that develop wire harnessing and integrated electro-mechanical assemblies. You will be responsible for standing up and optimizing end-to-end avionics harnessing and electro-mechanical assembly capabilities that ensure high-speed, high-reliability, manufacturing with a commitment to cost reduction, novel process definition, and rapid iteration. As a Manager of the Avionics Build you will have a unique opportunity to build and lead a cross-functional team of individuals that develop wire harnessing and integrated electro-mechanical assemblies. You will be responsible for standing up and optimizing end-to-end avionics harnessing and electro-mechanical assembly capabilities that ensure high-speed, high-reliability, manufacturing with a commitment to cost reduction, novel process definition, and rapid iteration. Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation

Manufacturing Engineering Intern - Fall 2026 Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Hermeus is seeking talented students to join our Manufacture Engineering team in Los Angeles to support improvement initiatives to expand in-house manufacturing capabilities and contribute to the design, build, and testing of flight and critical ground support hardware. Fall: Around 16 weeks (August - December) Hermeus is seeking talented students to join our Manufacture Engineering team in Los Angeles to support improvement initiatives to expand in-house manufacturing capabilities and contribute to the design, build, and testing of flight and critical ground support hardware. Fall: Around 16 weeks (August - December) Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Responsibilities: - Evaluate designs for manufacturability and testing, providing feedback to design team - Design and implement tooling and test solutions where appropriate,

Spike Inlet Mechanisms Build Engineer Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. The Spike Inlet Mechanism Build Engineer will be responsible for the build, integration, and test of supersonic spike inlet mechanisms and mechanical subsystems. This role bridges design, manufacturing, and test to ensure mechanism hardware is manufacturable, reliable, and performant. The engineer will work closely with design engineers, technicians, manufacturing teams, and test engineers to develop hardware, improve build processes, and support delivering rapid hardware iterations in a fast-paced development environment. The Spike Inlet Mechanism Build Engineer will be responsible for the build, integration, and test of supersonic spike inlet mechanisms and mechanical subsystems. This role bridges design, manufacturing, and test to ensure mechanism hardware is manufacturable, reliable, and performant. The engineer will work closely with design engineers, technicians, manufacturing teams, and test engineers to develop hardware, improve build processes, and support delivering rapid hardware iterations in a fast-paced development environment. Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the

Propulsion Development Engineer Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. As a Development Engineer on the Propulsion team, you will be responsible for advancing engine hardware through rapid, test-driven iteration. You will operate at the intersection of hardware execution and data analysis, owning engine test campaigns and translating results into actionable engineering improvements. This role requires strong hands-on capability, analytical rigor, and the ability to move quickly between test operations, data interpretation, and hardware problem-solving. You will play a critical role in increasing engine development velocity and reliability. As a Development Engineer on the Propulsion team, you will be responsible for advancing engine hardware through rapid, test-driven iteration. You will operate at the intersection of hardware execution and data analysis, owning engine test campaigns and translating results into actionable engineering improvements. This role requires strong hands-on capability, analytical rigor, and the ability to move quickly between test operations, data interpretation, and hardware problem-solving. You will play a critical role in increasing engine development velocity and reliability. Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today.

Accounts Payable & Travel Expense Manager Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. About the Role The AP/T&E Manager will own and scale the full Accounts Payable and Travel & Expense functions in a high-growth environment. This role is responsible for building efficient, automated, and compliant processes that can handle increasing transaction volume, support multiple government contracts, and prepare the company for further scaling. Responsibilities - Own End-to-End AP Operations : Manage invoice intake, three-way matching, coding, approval workflows, payment execution (ACH, wire, checks), vendor reconciliations, and aging management to ensure timely and accurate payments. - Lead T&E Program : Administer corporate card programs, expense policy enforcement, review and approval of expense reports (using tools like Ramp, Concur, or similar), and employee reimbursements. - Scale Processes

Head of Supply Chain Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. We are seeking a strategic and systems-minded leader to build, own, and lead Hermeus' end-to-end Supply Chain function. You will define the strategy, build the organization, and establish integrated processes to support our ambitious roadmap; developing scalable, fit-for-purpose practices across the full lifecycle from advanced development to full-rate production. Working directly with executive leadership, you'll translate company objectives into actionable supply chain strategies, building resilient supplier networks and disciplined processes that connect suppliers to shop floor with transparency and accountability. You'll ensure supply chain is a strategic enabler of Hermeus' mission. We are seeking a strategic and systems-minded leader to build, own, and lead Hermeus' end-to-end Supply Chain function. You will define the strategy, build the organization, and establish integrated processes to support our ambitious roadmap; developing scalable, fit-for-purpose practices across the full lifecycle from advanced development to full-rate production. Working directly with executive leadership, you'll translate company objectives into actionable supply chain strategies, building resilient supplier networks and disciplined processes that connect suppliers to shop floor with transparency and accountability. You'll ensure supply chain is a strategic enabler

Mechanical Engineer Atlanta, GA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. About The Role: We are seeking a Mid-Career Mechanical Engineer to support the design, build, and test of next-generation aircraft aerostructures, including fuselage, empennage, control surfaces, and landing gear systems. This role is hands-on and execution-oriented, with responsibility for taking hardware from concept through detailed design, fabrication support, and test validation. About The Role: We are seeking a Mid-Career Mechanical Engineer to support the design, build, and test of next-generation aircraft aerostructures, including fuselage, empennage, control surfaces, and landing gear systems. This role is hands-on and execution-oriented, with responsibility for taking hardware from concept through detailed design, fabrication support, and test validation. Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Responsibilities: - Own R&D-focused structural design and development supporting vehicle subsystems such as hydraulics, fuel systems,

Subsystem Test Engineering Intern - Fall 2026 Atlanta, GA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. The Test team is responsible for developing infrastructure to perform tests on fuel & hydraulic system components. The test team works with hardware owners to define testing requirements, design & implement test fixtures, and assist in data collection to inform and verify design decisions. Structures Test - ATL Subsystem Test - LA Fall: Around 16 weeks (August - December) The Test team is responsible for developing infrastructure to perform tests on fuel & hydraulic system components. The test team works with hardware owners to define testing requirements, design & implement test fixtures, and assist in data collection to inform and verify design decisions. Structures Test - ATL Subsystem Test - LA Fall: Around 16 weeks (August - December) Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to

Tooling Engineer Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. A Tooling Build Engineer on the Manufacturing team is responsible for the design, development, and validation of innovative tooling, fixtures, and ground support equipment that enable the prototyping, integration, and testing of advanced structural assemblies. This role emphasizes creativity, rapid iteration, and collaboration with multidisciplinary teams to support early-stage research and development. A Tooling Build Engineer on the Manufacturing team is responsible for the design, development, and validation of innovative tooling, fixtures, and ground support equipment that enable the prototyping, integration, and testing of advanced structural assemblies. This role emphasizes creativity, rapid iteration, and collaboration with multidisciplinary teams to support early-stage research and development. Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. Responsibilities - Own the design, fabrication, and implementation of advanced tooling, fixtures, and

Senior Welding Engineer Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. We are open to Senior or Principal leveling for this role. This position will support manufacturing and development of Hermeus vehicles and will help stand up welding processes, develop, qualify, and optimize welding designs and processes including but not limited to laser beam welding, gas tungsten arc welding, resistance welding, gas metal arc welding, and plasma arc welding. The welding engineer in this role will interface daily with design and manufacturing engineers to make welding judgment calls and improvements and will enforce standardized practices and procedures on multiple welded assemblies. We are open to Senior or Principal leveling for this role. This position will support manufacturing and development of Hermeus vehicles and will help stand up welding processes, develop, qualify, and optimize welding designs and processes including but not limited to laser beam welding, gas tungsten arc welding, resistance welding, gas metal arc welding, and plasma arc welding. The welding engineer in this role will interface daily with design and manufacturing engineers to make welding judgment calls and improvements and will enforce standardized practices and procedures on multiple welded assemblies.

Propulsion Component Responsible Engineer Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. As a Propulsion Component Responsible Engineer you will own the development of flight-critical mechanical and fluid system components, including valves, actuators, and integrated propulsion hardware. You will be responsible for taking hardware from clean-sheet design through build, test, qualification, and production, working in close collaboration with propulsion and vehicle teams. Your work will directly support systems operating in high-pressure, high-temperature, and dynamic flight environments. As a Propulsion Component Responsible Engineer you will own the development of flight-critical mechanical and fluid system components, including valves, actuators, and integrated propulsion hardware. You will be responsible for taking hardware from clean-sheet design through build, test, qualification, and production, working in close collaboration with propulsion and vehicle teams. Your work will directly support systems operating in high-pressure, high-temperature, and dynamic flight environments. Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed

Senior GNC Engineer - Flight Controls & Autonomy Los Angeles, CA Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. About The Role: As a Senior GNC Engineer at Hermeus, you will help develop and deploy the flight control, navigation, and autonomy systems that enable our aircraft to fly safely and perform reliably in demanding real-world environments. This role will focus heavily on flight controls development, controls modeling, state estimation, and autonomy for advanced aircraft applications, including autonomous takeoff and landing. You will work across simulation, software, hardware, and flight test to build and validate advanced control and estimation capabilities for high-speed aircraft. This role is ideal for an engineer who enjoys solving hard dynamic systems problems, moving quickly from analysis to implementation, and working closely with cross-functional teams to take algorithms from concept through validation and flight. About The Role: As a Senior GNC Engineer at Hermeus, you will help develop and deploy the flight control, navigation, and autonomy systems that enable our aircraft to fly safely and perform reliably in demanding real-world environments. This role will focus heavily on flight controls development, controls modeling, state estimation, and autonomy for advanced aircraft applications, including