Regulatory Engineer Radiant NuclearRegulatory EngineerEl Segundo, CARequired Qualification & Skills: Bachelor's degree in one of the following disciplines: nuclear engineering, mechanical engineering, electrical engineering, computer science, or similar technical field from an accredited institution. Portable 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.
Senior Software Engineer, Full Stack Relativity SpaceSenior Software Engineer, Full StackLong Beach, CA$154,000–$230,000 / yearAbout the Role: We are seeking a Senior Software Engineer with broad technical skills and a hands-on mindset to develop and own the crucial backend software infrastructure that connects robotics software, data platform, machine learning, and digital twin of our Stargate autonomous additive manufacturing platform. You'll work alongside welders, robotics engineers, data scientists, and systems engineers at the intersection of hardware and software, creating an end-to-end additive manufacturing platform that serves a wide variety of applications.
Staff Software Engineer, Full Stack Relativity SpaceStaff Software Engineer, Full StackLong Beach, CA$181,000–$271,000 / yearAbout the Role: We are seeking a Staff Software Engineer with broad technical skills and a hands-on mindset to develop and own the crucial backend software infrastructure that connects robotics software, data platform, machine learning, and digital twin of our Stargate autonomous additive manufacturing platform. You'll work alongside welders, robotics engineers, data scientists, and systems engineers at the intersection of hardware and software, creating an end-to-end additive manufacturing platform that serves a wide variety of applications.
Lead Mechanical Engineer Mesh Optical TechnologiesLead Mechanical EngineerGardena, California$160,000–$190,000 / yearArchitect electro-mechanical assemblies for highly automated, scalable manufacturing—ensuring designs enable autonomous assembly, precision placement, micron-scale metallurgical processes, and robust DFM execution. You will architect mechanical systems that integrate high-precision optics, photonics, and advanced packaging into products explicitly designed for scalable, autonomous manufacturing with minimal manual intervention.
Principal Network Engineer K2 SpacePrincipal Network EngineerLos Angeles, California$170,000–$220,000 / yearBacked by $450M from leading investors including Altimeter Capital, Redpoint Ventures, T. Rowe Price, Lightspeed Venture Partners, Alpine Space Ventures, and others – with an additional $500M in signed contracts across commercial and US government customers – we’re mass-producing the highest-power satellite platforms ever built for missions from LEO to deep space. You will define and evolve the architectures that connect people, systems, and missions to ensure resilient and high-performance networking across production labs, data centers, cloud environments, and global operations.
Senior Network Engineer K2 SpaceSenior Network EngineerLos Angeles, California$140,000–$180,000 / yearBacked by $450M from leading investors including Altimeter Capital, Redpoint Ventures, T. Rowe Price, Lightspeed Venture Partners, Alpine Space Ventures, and others – with an additional $500M in signed contracts across commercial and US government customers – we’re mass-producing the highest-power satellite platforms ever built for missions from LEO to deep space. Working technical knowledge of network control protocols (QoS, PfR, PoE, NTP, DHCP), network management protocols (CDP, FTP, TFTP, SNMP) and security protocols (SSH, HTTPS, AAA, IPSec, TrustSec).
Aerospace Engineer IESE SolutionsAerospace EngineerEl Segundo, CASupport the Government with the management, identification and tracking of Government Furnished Property, to include but not limited to the following tasks: utilization of the Government Furnished Property (GFP) Module located within the Procurement Integrated Enterprise Environment (PIEE), assist with establishing user access and roles within the GFP Module and establishing Department of Defense Activity Address Codes (DoDAAC) for Contractor locations receiving GFP deliveries and preparation and submittal of Form 8 Availability and Supportability Request Forms to item managers for GFP on contracts as needed. Our team is at the forefront of the advising and assisting the Government with their architecture and full lifecycle systems engineering processes that enable key systems (e.g., satellites and their ground systems, ground-based space systems and their command and control capabilities) to meet warfighter needs.
Senior Ground Software Engineer I - Secret Clearance Rocket Lab CorporationSenior Ground Software Engineer I - Secret ClearanceLong Beach, CA$132,000–$198,000 / 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.
Senior Ground Software Engineer II Rocket Lab CorporationSenior Ground Software Engineer IILong Beach, CA$150,000–$225,000 / 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.
Senior Ground Software Engineer I Rocket Lab CorporationSenior Ground Software Engineer ILong Beach, CA$130,000–$198,000 / 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.
NewTest Fluids Engineer II Relativity SpaceTest Fluids Engineer IILong 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. About the Team: The Factory Test team designs, builds, and operates the infrastructure needed to test nearly every part of Terran R right here at our headquarters in Long Beach, CA.
Systems Engineer, Systems Test Hadrian AutomationSystems Engineer, Systems TestTorrance, CaliforniaBacked by leading investors including JPMorgan Chase, Valor Equity Partners, Andreessen Horowitz, Founders Fund, 137 Ventures, Lux Capital, T. Rowe Price, and Morgan Stanley, we’re building the future of American manufacturing—and looking for exceptional people to help make it happen. You will lead the Systems Test division for Autonomous Factory Systems — building the team of test and simulation test engineers, owning full test plan coverage across development and release, and directing simulation test environments driven by those test plans.
Systems Engineer, Systems Test HadrianSystems Engineer, Systems TestLos Angeles, CA$240,000–$299,000 / yearBacked by leading investors including JPMorgan Chase, Valor Equity Partners, Andreessen Horowitz, Founders Fund, 137 Ventures, Lux Capital, T. Rowe Price, and Morgan Stanley, we're building the future of American manufacturing-and looking for exceptional people to help make it happen. You will lead the Systems Test division for Autonomous Factory Systems - building the team of test and simulation test engineers, owning full test plan coverage across development and release, and directing simulation test environments driven by those test plans.
Lead Structures & Analysis Engineer BrelleLead Structures & Analysis EngineerLos Alamitos, California$125,000–$160,000 / yearOur hardware lives in a demanding multi-physics environment (i.e. mechanical loads interacting with thermal, electrical, and safety requirements), so we’re especially interested in engineers who have worked on battery packs, energy storage, EV structures, spacecraft, aircraft, or motorsport, and who understand how structural decisions ripple through the rest of the system. Lead structural test campaigns: Define test plans, instrumentation (strain gauges, accelerometers, thermocouples, DIC), and pass/fail criteria for coupon, component, and assembly-level tests — static, dynamic, drop, crush, and abuse.
Senior OT Data Engineer Valar AtomicsSenior OT Data EngineerTorrance, CaliforniaThe Senior OT Data Engineer will own the operational data architecture connecting industrial sources, historians, time-series databases, semantic models, visualization, and controlled downstream consumers across Valar's reactor, fuel, and power-conversion programs. Strong working knowledge of industrial networking, segmentation, air-gapped environments, unidirectional data flows, and controlled enterprise/cloud transfer.
Senior Platform / Build Engineer, NIX RevelSenior Platform / Build Engineer, NIXLos Angeles, CaliforniaAs we scale, our platform growth depends on efficient, reliable, and high-signal testing and verification strategy that leverages a large compute pool — and our deployment tooling is one of the most important problems left to solve in order to keep shipping reliably as the team grows. We're looking for a Senior Platform/Build Engineer (Nix) to join our Software Platform team and help us ship code into production with zero-downtime deployments, while keeping engineers fast and productive in the meantime.
Senior Spacecraft Design Engineer Impulse SpaceSenior Spacecraft Design EngineerRedondo Beach, CA$140,000–$195,000 / yearThis position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Fluid Systems Engineer , you will be part of the Propulsion Engineering organization and own all aspects of propulsion system layout of a high-performance spacecraft, from concept to product realization, while working with a fast-paced, agile team.
NewSoftware Engineer, Enterprise Applications (Backend) Harbinger MotorsSoftware Engineer, Enterprise Applications (Backend)Garden Grove, CaliforniaHarbinger 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. Harbinger 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 HR, legal, and finance teams, and the team(s) with the position(s) for which you are applying; (ii) Harbinger affiliates; and (iii) Harbinger’s service providers, including providers of background checks, staffing services, and cloud services.
Senior Software Simulation Engineer HermeusSenior Software Simulation EngineerLos Angeles, CALeveraging 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. Ideal candidates will have a solid understanding of aerospace systems, control theory, and real-time simulation platforms, along with hands-on experience in model-based code generation, HIL development, and test automation within safety-critical environments.
Embedded Software Engineer Intern Castelion CorporationEmbedded Software Engineer InternTorrance, 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, the applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (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.