AST Spacemobile jobs

Director, IT & Infrastructure Lanham, Maryland, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a Director of IT & Infrastructure to lead the technical foundation of our Defense subsidiary. This leader will be responsible for the stand-up and management of a CMMC Level 2 compliant network and will own the end-to-end IT infrastructure across our defense lab and gateway facilities. This role oversees the critical convergence of IT, cybersecurity, and facility security (FCL) to ensure mission-critical environments remain secure, resilient, and compliant DoD standards. Key Responsibilities - Infrastructure Ownership: Manage and scale IT infrastructure across corporate offices, defense laboratories, and satellite gateway locations. - CMMC & Compliance: Direct the implementation and certification of a CMMC Level 2 network environment. - Cyber & Space Security: Lead cybersecurity strategy in alignment with CNSSP-12 and NIST 800-171 standards for space systems. - FCL & Security Leadership: Serve as the technical lead for Facility Clearance (FCL) requirements, ensuring compliance with DCSA standards. - Cross-Functional Convergence: Align IT, security, and facility protocols to support complex defense programs and protect national security data. Qualifications Education: Bachelor's or master's

Back office Admin Planning & Production Barcelona, Spain AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a Planning and Procurement Administrative Specialist to support the Production and Planning departments by ensuring the availability of materials required to meet the manufacturing plan. This role will be responsible for managing purchase requests, monitoring orders, controlling stock levels, and maintaining accurate material data within the ERP system. Key Responsibilities: • Generate and manage purchase requisitions based on production needs • Follow up on open orders with the Purchasing department and suppliers to ensure timely delivery • Monitor stock levels and coverage of critical materials • Review material requirements derived from the production plan • Maintain and update logistical and procurement parameters in the ERP system • Provide administrative support in the preparation and tracking of production orders • Review and maintain material data within Bills of Materials (BOM) • Verify item references, descriptions, units of measure, and other master data • Collaborate with Engineering, Purchasing, and Production to ensure data consistency in the ERP • Participate in continuous improvement initiatives related to material data quality • Prepare

Facilities Electrician Midland, Texas, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Summary We are seeking a qualified Electrician to support plant operations by installing, maintaining, and repairing electrical systems and equipment. This role is essential to ensuring the safe and efficient operation of production infrastructure. The Electrician will work closely with the maintenance and production teams to minimize downtime and uphold safety and compliance standards. Responsibilities - Install, troubleshoot, and repair electrical systems, including motors, control panels, lighting, and power distribution. - Perform preventive maintenance on electrical equipment to ensure reliability and compliance with safety standards. - Read and interpret blueprints, wiring diagrams, and technical manuals. - Diagnose electrical faults using appropriate testing equipment and resolve issues efficiently. - Support the installation and commissioning of new electrical systems and upgrades. - Maintain accurate records of inspections, repairs, and maintenance activities. - Ensure compliance with OSHA regulations and internal safety protocols. - Collaborate with production and facilities teams to support operational goals. - Respond to emergency calls and participate in on-call rotations as needed. Required Qualifications - High school diploma or equivalent. - Valid electrician license or

Business Development Manager - LATAM US - Remote AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a Business Development Manager to lead our growth efforts in Latin America. This role is responsible for driving the commercial, strategic, and operational footprint in the region. The ideal candidate will identify opportunities, close deals, build partnerships, support key customers, and shape the company's market approach. This is a high-ownership, entrepreneurial role in a startup environment, requiring versatility across sales, strategy, and operations. Key Responsibilities - Identify and develop new business opportunities across Latin America - Build and maintain a strong pipeline of prospects, particularly with Mobile Network Operators (MNOs) - Develop and nurture relationships with key stakeholders at top MNOs - Represent the company at industry events, conferences, and regional forums - Act as a trusted advisor to customers, collaborating with Pre-Sales and Project teams - Drive sales cycles from lead generation through negotiation and closing - Prepare commercial proposals, manage contracts, and ensure delivery aligns with commitments - Meet and exceed regional growth targets - Provide insights on market trends, regulations, and competitive activity - Collaborate

Environmental Test Engineer-Night Shift Midland, Texas, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a capable and energetic Environmental Test Engineer to validate our satellite's ability to survive the harsh conditions of launch and Low Earth Orbit (LEO). In this role, you will be responsible for the end-to-end planning, coordination, and execution of critical test campaigns. You will work closely with systems, mechanical, and electrical engineering teams to ensure mission readiness. The ideal candidate thrives in a fast-paced, dynamic environment and demonstrates strong ownership over their work, making a direct impact on the success of our rapidly growing business. This position is assigned to Shift 2-Nights: Monday-Thursday, 6:00 p.m.-4:00 a.m. (4x10s) 10% pay premium. Depending on business needs, this role may also have opportunities on: - Shift 1- Days: Monday-Thursday, 7:30 a.m.-5:30 p.m. (4x10s). - Shift 3- Weekends: Friday-Sunday, 6:00 a.m.-6:00 p.m. (3x12s) 20% premium - Shift 4- Weekend Nights: Friday- Sunday 6:00 pm - 6:00 am (3x12s) 25% premium Key Responsibilities: - Perform Thermal Vacuum (TVAC), vibration, and shock testing on components, subsystems, and fully assembled satellites. - Coordinate logistics and

Mechanical Harness Engineer US - Remote AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a highly skilled and detail-oriented Mechanical Harness Engineer to join our dynamic team working on state-of-the-art Low Earth Orbit (LEO) satellite systems. In this role, you will design, develop, and integrate electrical harnesses that form the backbone of the satellite's electrical system, ensuring reliable and efficient power and data transfer for successful missions. Key Responsibilities - Design and develop electrical harnesses for LEO satellite systems, considering mission requirements, space constraints, thermal considerations, and EMC requirements. - Collaborate with system engineers, electrical designers, and mechanical engineers to define harness specifications and design constraints. - Create and manage detailed harness drawings, including cable/wire routing, connector selection, splicing, and termination plans using CAD tools. - Ensure compliance with industry standards (e.g., IPC-WHMA-A-620, ECSS-E-HB-10-10) and space agency requirements. - Conduct analyses and simulations to verify mechanical integrity, electrical performance, and environmental resistance. - Support fabrication, assembly, and testing of harnesses, providing guidance to ensure quality and adherence to specifications. - Perform in-house testing and validation, including continuity checks, insulation resistance, and signal integrity testing.

Director – Gateway Products US - Remote AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a Director of Gateway Products to lead the strategy, development, and lifecycle management of gateway solutions within a complex telecommunications environment. This role is responsible for transforming gateway systems into standardized, scalable, and globally deployable products with clearly defined configurations and performance expectations. The Director will ensure that gateway offerings are designed for repeatability, operational efficiency, and seamless integration into broader network architectures. Key Responsibilities: - Define and manage gateway product offerings, including standardized configurations and scalable product tiers - Develop and maintain a product roadmap aligned with operational scalability and service delivery objectives - Establish and oversee acceptance criteria, testing standards, and validation processes for gateway deployments - Build and implement automated testing and validation workflows to improve efficiency and consistency - Own and maintain standardized configurations to ensure compatibility across diverse deployment environments - Ensure gateway solutions align with overall network architecture and integration requirements - Define deployment procedures, upgrade paths, and lifecycle management processes - Enable operational teams with clear guidance for deployment, maintenance, and support

Mechanisms Flight Assurance Engineer Midland, Texas, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview: The Flight Assurance Engineer will independently execute mechanisms-specific flight assurance processes and practices to ensure product reliability, compliance, and quality throughout the lifecycle of flight mechanisms and mechanical assemblies. This role owns design, manufacturing, test, and integration related assurance activities to ensure the safety, functionality, and performance of flight hardware with limited supervision. Key Responsibilities - Own and execute flight assurance methods, plans, and processes across the full mechanisms development and production lifecycle - encompassing design, manufacturing, assembly, test, and integration - while supporting program schedule and cost objectives and meeting quality, safety, and regulatory requirements. - Conduct independent inspections at defined hold points across assembly, test, and integration for high-complexity mechanisms. Define, maintain, and enforce witness point classifications for all mechanisms through their full product lifecycle. - Review and approve assembly work instructions and test procedures before execution across functional and environmental test campaigns. Track qualification and verification of mechanisms through rigorous assurance processes including test readiness review, TVAC and life test witnessing, and test completion sign-off. - Execute mechanisms

RAN Systems Engineer Hyderabad, Telangana, India AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking an exceptionally motivated and versatile telecommunication RAN Systems Engineer to join our team. This is not a traditional feature-definition role; instead, it requires a highly skilled professional capable of tackling complex challenges across system engineering, design, and troubleshooting. The ideal candidate will have deep expertise in cellular technologies and a passion for innovation in satellite network solutions. Key Responsibilities - Debug and resolve field issues related to RAN systems and satellite network integration. - Guide and support testing teams during validation and deployment phases. - Collaborate with cross-functional teams to define upcoming solutions for SAT network architecture. - Participate in system-level design reviews and ensure compliance with engineering standards. - Provide technical leadership in RF and lower-layer protocol analysis. - Document processes, findings, and recommendations for continuous improvement. Qualifications Education: Bachelor's degree in communication engineering, electrical engineering, or a related field. Experience: - Minimum of 3 years as a System Engineer and at least 5 years in the telecommunications industry. - Deep familiarity and understanding of Cellular standards: 4G and/or

RAN Deployment Engineer Miami, Florida, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview The RAN Deployment Engineer is responsible for executing all deployment, installation, and integration activities required to enable stable satellite‑to‑mobile connectivity across India and within global delivery programs. This role supports gateway and cell‑site builds, performs beam surveys, validates field installations, uploads configurations, and conducts probe‑based integration checks to ensure RAN readiness for satellite network activation. The position works closely with regional engineering teams, the NOC, vendors, and global deployment groups to resolve technical blockers, uphold high integration quality, and support seamless service enablement. Operating at the intersection of field engineering and advanced satellite‑RAN deployment, this role demands precision during installation, disciplined validation practices, and continuous coordination with cross‑functional teams. The RAN Deployment Engineer must balance technical accuracy, operational urgency, and regulatory variations across India to ensure smooth and consistent readiness for global satellite network activation. Key Responsibilities Field Deployment & Installation Activities - Deliver RAN deployment activities including cell‑site builds, managing end-to-end field installation processes for satellite-RAN infrastructure - Execute installation checks and commissioning procedures to validate proper equipment mounting, cabling, power

Thermal Blanket Fabrication Technician Lanham, Maryland, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a Thermal Blanket Fabrication Technician to join our team in supporting the production of high-performance satellites. This role involves the precise fabrication, assembly, and installation of thermal insulation blankets. The ideal candidate will have strong manual dexterity, attention to detail, and experience working with specialized materials in a fast-paced environment. Key Responsibilities: - Fabricate custom thermal blankets based on engineering drawings, patterns, and technical specifications - Measure, cut, sew, and assemble thermal insulation materials such as reflective films and foils - Operate industrial sewing machines, hot knives, and other fabrication tools safely and accurately - Apply binding, Velcro, snaps, and other fasteners to thermal blankets as required - Perform quality control checks to ensure accuracy, proper fit, and compliance with specifications - Read and interpret technical drawings, blueprints, and schematics - Collaborate with engineering and quality teams to resolve fabrication issues or suggest improvements - Maintain a clean and organized work area and follow all safety protocols - Track materials used and maintain documentation for traceability - May

Lead Structures Mechanic Midland, Texas, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. The Structures Mechanic plays a critical role in the fabrication, assembly, and integration of spacecraft structural components used in our large-scale Low Earth Orbit (LEO) satellites. This position is responsible for assembling, installing, and modifying structural hardware including aluminum, titanium, and composite components that form the primary and secondary structures of spacecraft systems. The ideal candidate is highly detail-oriented, comfortable working from engineering drawings, and experienced with precision assembly in aerospace, aviation, or similarly demanding manufacturing environments. Key Responsibilities - Assemble spacecraft structural components, subassemblies, and mechanical systems according to engineering drawings, work instructions, and specifications - Install fasteners including rivets, bolts, nut plates, and specialty aerospace hardware using proper torque and installation procedures - Perform drilling, reaming, countersinking, deburring, and precision fitting of structural components - Assemble and bond composite and metallic structures used in satellite frames, panels, and deployable systems - Perform precision alignment and fit-up of structural assemblies to meet engineering tolerances - Work with manufacturing engineers to resolve build issues and improve assembly processes - Maintain strict compliance with quality

Launch Operations Mechanical Engineer Lead Cape Canaveral, Florida, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a Launch Operations Mechanical Engineer Lead who will own and drive all mechanical integration activities at the launch site. This role provides technical authority and execution leadership throughout the launch campaign, ensuring mechanical readiness, risk mitigation, and flawless execution for flight hardware and Mechanical Ground Support Equipment (MGSE). The Lead serves as the primary on-site mechanical authority, bridging design, manufacturing, and launch operations while mentoring engineers and coordinating across internal and external partners to ensure mission success. Key Responsibilities - Lead and own mechanical integration efforts at the launch site, ensuring satellites and launch adapters are flight-ready and fully certified for launch. - Define and execute the mechanical integration strategy, sequencing, and risk mitigation throughout launch campaigns. - Lead the design, qualification, and deployment of Mechanical Ground Support Equipment (MGSE). - Serve as the primary technical authority for mechanical issues during integration, testing, and launch operations. - Coordinate mechanical activities with systems engineering, integration teams, test operations, launch vehicle providers, and range operations. - Review and

Electronic Testing Technician, Shift 2 Barcelona, Spain AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a highly skilled and detail-oriented Electronic Test Technician to support the testing, validation, and troubleshooting of advanced electronic assemblies and systems. This role is critical to ensuring product performance, reliability, and quality throughout development and production phases. The ideal candidate will have strong hands-on technical experience, solid diagnostic skills, and the ability to operate effectively in a fast-paced engineering and manufacturing environment. Key Responsibilities: • Perform functional, validation, and acceptance testing of electronic assemblies and PCBAs. • Execute test procedures, record data, and document results in accordance with internal quality standards. • Troubleshoot and diagnose electrical and electronic failures down to the component level. • Support product development, verification testing, and production testing activities. • Operate and maintain electronic test equipment including oscilloscopes, spectrum analyzers, power supplies, signal generators, and data acquisition systems. • Assist engineers with test setup development, fixture assembly, and process improvements. • Interpret schematics, wiring diagrams, and technical documentation. • Ensure compliance with ESD, safety, and quality procedures. • Identify and escalate recurring test failures

Quality Engineer – Thruster and Electric Propulsion Production Line Homestead, Florida, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Job Summary: The Quality Engineer will be responsible for ensuring that thrusters and electric propulsion systems meet stringent quality standards throughout the production process. This role involves developing, implementing, and maintaining quality control procedures, conducting root cause analysis for defects, and driving continuous improvement initiatives to ensure product reliability and compliance with aerospace industry standards. Key Responsibilities: - Develop, implement, and maintain quality assurance and quality control processes for thruster and electric propulsion production lines. - Perform inspections and audits of incoming materials, in-process components, and finished thrusters to verify compliance with design specifications and quality standards. - Collaborate closely with manufacturing, engineering, and supply chain teams to identify and resolve quality issues promptly. - Analyze production data and quality metrics to identify trends and areas for process improvement. - Lead root cause analysis and corrective/preventive actions (CAPA) for quality non-conformances. - Ensure compliance with relevant aerospace standards and customer requirements (e.g., AS9100, ISO 9001). - Develop and maintain quality documentation including inspection plans, test procedures, and control

Senior Power System Engineer with Power Integrity Focus Lanham, Maryland, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. As an Electrical and Power System Engineer, you will have the unique opportunity to contribute to the development of our next generation of satellites which will be even larger, more powerful, and more advanced than their predecessors. You will be part of a cross-functional team of talented engineers that owns the full development and operations cycle of the satellite electrical and power systems. The responsibilities of the team span a wide range of activities from requirements specification and architecture development up to post launch data reviews and anomaly investigations. Duties and Responsibilities: - Develop and maintain unit- and subsystem-level technical requirements. - Lead trade studies, architecture development, and interface definition at the unit and subsystem level. - Support detailed design activities, including creation and review of schematics, layouts, drawings, and bills of materials. - Perform electrical and power analyses including power integrity (PI), transient analysis, worst-case circuit, derating, voltage drop, and grounding analyses. - Perform DC, AC, and transient power integrity analysis (IR drop, impedance targets, load steps, resonances).

Global Tax Manager Miami, Florida, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a highly motivated and experienced Global Tax Manager to oversee global tax compliance, tax planning, and accounting for income taxes for a growing, multinational organization. This role is responsible for managing complex domestic and international tax matters, ensuring compliance with regulatory requirements, and supporting strategic business initiatives. The ideal candidate is a strategic thinker with a hands‑on approach and deep expertise in international taxation, tax provisions, and internal controls. Key Responsibilities - Manage and oversee the timely and accurate preparation and filing of federal, state, and international tax returns in multiple jurisdictions. - Coordinate with external tax advisors to ensure compliance with applicable tax laws and regulations. - Lead the quarterly and annual global income tax provision process in accordance with ASC 740, including calculating effective tax rates, managing deferred taxes, and preparing financial statement disclosures. - Ensure compliance with Sarbanes‑Oxley (SOX) requirements for all tax‑related processes, including maintaining control documentation and coordinating with internal and external auditors. - Provide subject‑matter expertise on international tax matters, including transfer pricing,

Strategic Sourcing – Project Manager Spain Barcelona, Spain AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking an experienced and highly skilled Strategic Sourcing Project Manager. The Strategic Sourcing Project Manager is responsible for driving global sourcing strategies, identifying and qualifying strategic suppliers across Europe, Asia, and the Americas, while ensuring excellence in cost, lead time, quality, and innovation within aerospace structures materials (metallic, CFRP, plastics). The ideal candidate will be a strategic thinker with strong business acumen, capable of managing cost comparisons, developing business cases, planning procurement activities, and analyzing data-driven decisions. This role requires exceptional negotiation and stakeholder management skills, fluency in English and Spanish, and a minimum of 5 years of experience in similar roles within the aerospace sector. Key Responsibilities: • Identify, qualify, and develop new strategic suppliers globally, with a focus on aerospace components made from advanced materials and metals • Lead supplier expansion and qualification efforts across Europe, Asia, and the Americas • Define and execute strategic sourcing strategies aligned with business objectives • Build and present detailed business cases to support sourcing decisions, vendor changes, and cost-saving initiatives

Environmental Test Engineer-Weekend Night Shift Midland, Texas, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a capable and energetic Environmental Test Engineer to validate our satellite's ability to survive the harsh conditions of launch and Low Earth Orbit (LEO). In this role, you will be responsible for the end-to-end planning, coordination, and execution of critical test campaigns. You will work closely with systems, mechanical, and electrical engineering teams to ensure mission readiness. The ideal candidate thrives in a fast-paced, dynamic environment and demonstrates strong ownership over their work, making a direct impact on the success of our rapidly growing business. This position is assigned to Shift 4- Weekend Nights: Friday- Sunday 6:00 pm - 6:00 am (3x12s) 25% pay premium Depending on business needs, this role may also have opportunities on: - Shift 1- Days: Monday-Thursday, 7:30 a.m.-5:30 p.m. (4x10s). - Shift 2-Nights: Monday-Thursday, 6:00 p.m.-4:00 a.m. (4x10s) 10% pay premium - Shift 3- Weekends: Friday-Sunday, 6:00 a.m.-6:00 p.m. (3x12s) 20% pay premium Key Responsibilities: - Perform Thermal Vacuum (TVAC), vibration, and shock testing on components, subsystems, and fully assembled satellites. -

Mechanisms Engineer Lanham, Maryland, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a Mechanisms Engineer to support the design, development, and optimization of precision mechanical systems for advanced aerospace applications. This role will contribute to both new product development and ongoing improvements, ensuring successful delivery of hardware from concept through integration and testing. The ideal candidate is hands-on, innovative, and thrives in a fast-paced environment, collaborating cross-functionally to bring complex mechanical systems from design to deployment. Key Responsibilities: - Design and develop mechanical systems and mechanisms, including performing analysis and trade studies to optimize performance, efficiency, and manufacturability - Execute detailed engineering design work in accordance with established standards, procedures, and program requirements - Collaborate with internal teams to support system integration, assembly, and testing activities - Partner with external vendors by defining requirements, reviewing designs, and tracking development progress - Develop and maintain mechanical documentation, including requirements, drawings, interface definitions, and test procedures - Define and validate mechanical interfaces between subsystems and components - Support qualification testing (e.g., vibration, thermal, environmental) and evaluate results - Troubleshoot hardware issues, perform root-cause analysis,

HW Electronic Engineer Barcelona, Spain AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking an Electronic Hardware Engineer to design, develop, validate and document onboard electronic systems for satellites, ensuring their reliability, performance and compliance with aerospace industry standards. Key Responsibilities: • Design schematics and PCBs for satellite electronic systems (power subsystems, communications, control, etc.) • Perform simulations, signal analysis, electrical and thermal integrity • Participate in component selection in accordance with space standards (ECSS, MIL-STD, etc.) • Collaborate in HW-SW system integration with other departments (software, systems, integration and testing) • Prepare technical documentation in compliance with aerospace standards • Support environmental test campaigns (EMC, vibration, thermal-vacuum, etc.) • Collaborate with suppliers for the manufacturing and assembly of electronic boards • Participate in design reviews (PDR, CDR) with clients or agencies (ESA, NASA, etc.) Qualifications Education : University degree in Electronic Engineering, Telecommunications Engineering, Aerospace Engineering or similar Experience : A minimum of 8 years in electronic hardware design, preferably in high-reliability environments (aerospace, defense, automotive) Experience in multilayer PCB design, high-speed design, and environments with thermal or electromagnetic constraints Preferred Qualifications : •

Senior Ground Software Engineer (Cyber) US - Remote AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a Senior Ground Software Engineer with deep full‑stack development experience to help design, build, and maintain software and infrastructure that supports mission‑critical ground systems and operations. This role plays a key part in developing reliable, scalable systems used for monitoring, communication, and control of space‑based assets. The ideal candidate is a strong individual contributor and technical leader who thrives in complex, highly regulated environments, takes ownership of system design decisions, and proactively drives improvements through automation and best practices. This is a hybrid, U.S.-based role with occasional travel. Key Responsibilities - Design, develop, and maintain full‑stack software applications supporting ground and mission operations - Architect and support networked systems used for secure communication between distributed systems - Debug, troubleshoot, and resolve issues across application, infrastructure, and networking layers - Collaborate with cross‑functional engineering teams to identify gaps and improve operational workflows through automation - Contribute to system architecture decisions and lead development efforts for new tools and platforms - Serve as a technical leader within the ground software

Mechanisms Manufacturing Engineer Midland, Texas, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a highly motivated and detail-oriented Mechanisms Engineer to support the assembly, integration, and testing (AIT) of spacecraft mechanisms. The candidate will work hands-on in a dynamic environment, collaborating closely with design, test, and production teams to ensure successful build, qualification, and delivery of space mechanisms and subsystems. Key Responsibilities - Provide manufacturing and test engineering support to Production during build, integration, and verification phases - Perform and lead mechanism-level and subsystem-level tests; develop testing requirements, materials, processes, and tooling (vibration, shock, TVAC, assembly) - Participate in and execute design, analysis, and system trade studies to determine mechanism AIT strategies at system and spacecraft levels - Provide inputs to Design Engineering to optimize manufacturing flow, cost, and layout - Prepare detailed product and process reports by collecting, analyzing, and summarizing data - Execute design and analysis using sound engineering principles while adhering to company standards and program requirements - Troubleshoot and investigate anomalies and failures, perform root-cause analysis, and drive resolution - Participate in iterative mechanism design improvements based on

Mechanical Technician for CNC Barcelona, Spain AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview We are seeking a professional to independently operate a HAAS CNC milling machine (primary responsibility), perform CAM programming using Inventor CAM as required, and support machining, assembly, and workshop activities. The role requires a creative mindset, strong attention to detail, and the ability to work effectively with limited means. This is an on-site position on an afternoon shift, semi-flexible with availability to cover peak workload periods as needed. Key Responsibilities: • Independently operate a HAAS CNC milling machine (primary responsibility). • Perform CAM programming using Inventor CAM as required. • Machine prototypes and short production runs. • Carry out part modifications and repairs. • Design and develop workholding fixtures and tooling. • Support assembly operations across a variety of mechanical assemblies. Qualifications Education: Vocational training, technical certification, or equivalent practical experience in machining, manufacturing, or a related field. Experience: Experience operating CNC milling machines and performing machining operations in a workshop environment. Preferred Qualifications: • Experience working with HAAS CNC milling machines. • Experience using Inventor CAM for programming. • Experience machining prototypes