Lead Flight Software Engineer Castelion CorporationLead Flight Software EngineerTorrance, CaliforniaTeam Leadership & Mentorship: Serve as day-to-day technical lead for the embedded software team by mentoring engineers, reviewing designs and code, and providing guidance on implementation approaches. Provide technical leadership across embedded systems, autonomy, drivers, simulation, and application layers, and lead deep-dive investigations into software reliability, performance, and integration issues.
Integration Engineer VastIntegration EngineerLong Beach, California$112,000–$159,000 / yearVast is developing next-generation space stations to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. We also take pride in offering exceptional food perks, with snacks, drip coffee & onsite barista, cold drinks, and dinner meals remaining free of charge, and lunch subsidized as part of Vast’s ongoing commitment to providing high-quality meals for employees.
Avionics Systems Engineer - Flight Safety Systems (Fts / Afss) HermeusAvionics Systems Engineer - Flight Safety Systems (Fts / Afss)Los Angeles, CA$91,800–$224,250 / yearAbout The Role: As an Avionics Systems Engineer, you will be responsible for owning the design, integration, testing, and certification of the Flight Termination System (FTS) hardware and software for advanced flight vehicles. You will work closely with cross-functional teams across avionics, electrical, mechanical, and ground systems engineering to ensure seamless system integration and compliance with range safety requirements.
Lead Mechanical Engineer Neros TechnologiesLead Mechanical EngineerTorrance, CaliforniaAs drones transform the character of warfare, Neros is delivering the systems the West needs to compete on the modern battlefield and deter the adversaries of democracy. We design and manufacture high-performance unmanned systems that are tested in combat, iterated at startup speed, and built at massive scale.
Principal Component Engineer I CesiumAstroPrincipal Component Engineer IEl Segundo, CA$148,500–$199,000 / yearPlease Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State. If you enjoy working in a startup environment and are passionate about developing leading-edge electronics for satellites, spacecraft, and aerospace systems, we would like to hear from you.
Flight Software Engineer (All Levels) Castelion CorporationFlight Software Engineer (All Levels)Torrance, CaliforniaCastelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.
Systems Engineer, Spacecraft Design & Simulation VastSystems Engineer, Spacecraft Design & SimulationLong Beach, CaliforniaVast is developing next-generation space stations to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. We also take pride in offering exceptional food perks, with snacks, drip coffee & onsite barista, cold drinks, and dinner meals remaining free of charge, and lunch subsidized as part of Vast’s ongoing commitment to providing high-quality meals for employees.
Embedded Software Engineer (All Levels) Castelion CorporationEmbedded Software Engineer (All Levels)Torrance, CaliforniaYour role involves close collaboration with fellow Castelion engineers across software and hardware domains to implement and debug software across the entire technology stack from applications and operating systems to networking, firmware, and simulation, ensuring complete mission success. System Experience: Practical experience with real-time embedded systems or distributed computing environments in Linux-based systems, including developing high-quality Linux-based C++ software for common processors and microcontrollers (e.g., PowerPC, x86, ARM).
NewSenior Reliability Supplier Industrialization Engineer [Pcba & Harnessing Reliability] Mach IndustriesSenior Reliability Supplier Industrialization Engineer [Pcba & Harnessing Reliability]Huntington Beach, CAMach Industries is seeking a Senior Reliability Supplier Industrialization Engineer focused on avionics, printed circuit board assemblies, and harnessing to qualify, develop, and scale suppliers that produce reliable electrical hardware to engineering, manufacturing, and system requirements. This role spans Electrical Engineering, Avionics, Supply Chain, Quality, Manufacturing, Test, and suppliers from early design reviews through prototype, qualification, production, and field support.
NewSenior Reliability Supplier Industrialization Engineer [PCBA & Harnessing Reliability] Mach IndustriesSenior Reliability Supplier Industrialization Engineer [PCBA & Harnessing Reliability]Huntington Beach, CaliforniaMach Industries is seeking a Senior Reliability Supplier Industrialization Engineer focused on avionics, printed circuit board assemblies, and harnessing to qualify, develop, and scale suppliers that produce reliable electrical hardware to engineering, manufacturing, and system requirements. This role spans Electrical Engineering, Avionics, Supply Chain, Quality, Manufacturing, Test, and suppliers from early design reviews through prototype, qualification, production, and field support.
Mechanical Design Engineer [Propulsion] Odys AviationMechanical Design Engineer [Propulsion]Long Beach, CaliforniaOur flagship aircraft Alta enables travelers to skip the big-airport hassle by using city helipads and local airports to connect cities less than 1,000 miles apart (approx 40% of flights). In this role, you will design, analyze, and integrate mechanical and thermal systems that support high-power hybrid-electric propulsion, including motors, generators, inverters, turbines and their supporting structures and cooling systems.
Manufacturing Engineer II, Subassemblies Relativity SpaceManufacturing Engineer II, SubassembliesLong Beach, CA$104,000–$156,000 / yearAny unsolicited submission - via email, our website, social media, or directly to an employee - will be deemed the property of Relativity Space, and no fee will be owed absent a current, fully executed agreement with Talent Acquisition that specifically authorizes submissions for the applicable role. Proficient in GD&T, CAD, and basic design or test analysis, with experience in at least two of the following: LOX cleanliness, leak checking, sensor checkouts, tube bending, tool design, crane operations, or subassembly builds.
Manufacturing Engineer II, Mechanisms Relativity SpaceManufacturing Engineer II, MechanismsLong Beach, CA$104,000–$156,000 / yearKnowledge in at least 2 of the following: fastening and torquing operations, pneumatic and/or electromechanical assembly, electrical and/or pneumatic testing or functional checkouts, tooling design and fabrication, potting processes, grease plating processes, harness manufacturing, machining of complex products like gears. About the Role: Own major mechanized assemblies and their child components from design release through test and successful integration onto the Terran R launch vehicle-lay out the build and test flow to ensure an efficient, high-quality product flow capable of scaling with time.
Manufacturing Engineer II, Subassemblies, Second Shift Relativity SpaceManufacturing Engineer II, Subassemblies, Second ShiftLong Beach, CA$104,000–$156,000 / yearAny unsolicited submission - via email, our website, social media, or directly to an employee - will be deemed the property of Relativity Space, and no fee will be owed absent a current, fully executed agreement with Talent Acquisition that specifically authorizes submissions for the applicable role. Proficient in GD&T, CAD, and basic design or test analysis, with experience in at least two of the following: LOX cleanliness, leak checking, sensor checkouts, tube bending, tool design, crane operations, or subassembly builds.
Staff Functional Safety Engineer RivianStaff Functional Safety EngineerCarson, California$171,100–$213,900 / yearFull timeRivian may use your Candidate Personal Data for the purposes of (i) tracking interactions with our recruiting system; (ii) carrying out, analyzing and improving our application and recruitment process, including assessing you and your application and conducting employment, background and reference checks; (iii) establishing an employment relationship or entering into an employment contract with you; (iv) complying with our legal, regulatory and corporate governance obligations; (v) recordkeeping; (vi) ensuring network and information security and preventing fraud; and (vii) as otherwise required or permitted by applicable law. Rivian may share your Candidate Personal Data with (i) internal personnel who have a need to know such information in order to perform their duties, including individuals on our People Team, Finance, Legal, and the team(s) with the position(s) for which you are applying; (ii) Rivian affiliates; and (iii) Rivian’s service providers, including providers of background checks, staffing services, and cloud services.
Space Vehicle Bus Systems Engineer Booz Allen HamiltonSpace Vehicle Bus Systems EngineerEl Segundo, California6+ years of experience with systems engineering, planning, development, integration, and testing for space vehicle subsystems and their components, including structures, mechanisms, electrical power, attitude control, thermal, propulsion, communications, or command. Onsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role.
Mechanical Engineer, Fluid Systems - 2026 New Graduate Radiant NuclearMechanical Engineer, Fluid Systems - 2026 New GraduateEl Segundo, CAPortable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials.
Mechanical Engineer, Fluid Systems Radiant NuclearMechanical Engineer, Fluid SystemsEl Segundo, CAPortable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials.
NewManufacturing Engineer I, Mechanisms Relativity SpaceManufacturing Engineer I, MechanismsLong Beach, CA$90,000–$136,000 / yearKnowledge in at least 2 of the following: fastening and torquing operations, pneumatic and/or electromechanical assembly, electrical and/or pneumatic testing or functional checkouts, tooling design and fabrication, potting processes, grease plating processes, harness manufacturing, machining of complex products like gears. About the Role: Own major mechanized assemblies and their child components from design release through test and successful integration onto the Terran R launch vehicle-lay out the build and test flow to ensure an efficient, high-quality product flow capable of scaling with time.
NewMechanical Engineer II Rocket Lab CorporationMechanical Engineer IIPasadena, CA$100,000–$126,000 / yearTo conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable. Our Space Systems team builds everything from complete spacecraft, precision payloads to the components and subsystems that allow them to thrive in space, like solar panels, flight software, star trackers, optical systems, separation systems, radios, and more.