NewPrincipal Thermal-Hydraulics & Safety Analysis Engineer BlueCore EnergyPrincipal Thermal-Hydraulics & Safety Analysis EngineerLong Beach, CAPrincipal Thermal-Hydraulics & Safety Analysis Engineer About the Role The Principal Thermal-Hydraulics & Safety Analysis Engineer operates at the critical intersection of fluids, structural mechanics, and safety. Physical & Machinery Requirements: Because we are a hands-on startup, this role may require the ability to perform physical labor, navigate active construction/manufacturing zones, and/or operate heavy machinery and specialized manufacturing equipment as needed.
NewPropulsion Engineer I, Combustion Devices Relativity SpacePropulsion Engineer I, Combustion DevicesLong Beach, CA$90,000–$136,000 / 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. As the flight configuration enters qualification, the team is now exploring modifications for future engines, including thrust upgrades, new cycles, and design for mass production.
NewSenior Electrical Engineer Relativity SpaceSenior Electrical EngineerLong Beach, CA$146,000–$218,000 / yearElectrical Architecture and Hardware Development: Design and implement robust electrical architectures for robotic arms, AMRs, and supporting manufacturing equipment, while developing custom electrical hardware enable reliable and scalable across complex robotic platforms. BS, MS, or PhD in Electrical Engineering, Robotics, Mechatronics, or related field, with 4+ years of experience in related fields such as industrial automation, robotic systems, AMR development, electrical system integration, and/or advanced manufacturing equipment.
NewInstrumentation and Monitoring Engineer Nicholson Construction CompanyInstrumentation and Monitoring EngineerTorrance, CAInstall and maintain the performance of various geotechnical and structural monitoring instruments following Sixense procedures, including but not limited to datalogging systems and Automatic Motorized Total Stations. In this hands-on role, you will work closely with the local team to prepare, install, and service a wide range of monitoring equipment in diverse environments.
NewLead Mechanical Engineer, Structures AstrolabLead Mechanical Engineer, StructuresHawthorne, CAWe are singularly focused on designing, building, and operating a fleet of multi-purpose commercial planetary rovers to extend and enhance humanity’s presence in the solar system. Experience mentoring and developing more junior engineers, contractors, and interns to build an effective design team.
NewSenior Stage Fluids Engineer Rocket Lab CorporationSenior Stage Fluids EngineerLong Beach, CA$115,200–$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. From designing and testing Neutron's structures and components, to firing up its new Archimedes engines, to setting up Neutron's launch pads and test sites across the United States, joining the Neutron team is your opportunity to help launch a new large rocket for the very first time.
NewSenior Manufacturing Engineer, Turbomachinery Relativity SpaceSenior Manufacturing Engineer, TurbomachineryLong Beach, CA$122,000–$182,000 / 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. Having successfully developed and refined processes for our initial development engines, the team is now focused on producing flight engines at rate for Terran R's aggressive launch manifest.
NewResponsible Engineer II, Valves Relativity SpaceResponsible Engineer II, ValvesLong 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. As the flight configuration enters qualification, the team is now exploring modifications for future engines, including thrust upgrades, new cycles, and design for mass production.
NewPower Electronics Engineer (Onsite) Columbus Technologies and Services IncPower Electronics Engineer (Onsite)Pasadena, CAAs a Power Electronics Engineer in the JPL Power Electronics Group, you will be designing and testing electronics subsystems and support equipment and will be involved in all aspects of power electronics development from concept to delivery. In addition, you will be integral developing advanced electronics technology and improving and enabling future missions and supporting the development of mission proposals through expertise in the current state-of-the-practice in space electronics.
NewMaterials & Process (M&P) Engineer Space KineticMaterials & Process (M&P) EngineerEl Segundo, CA$130,000–$165,000 / yearWho We Are: Space Kinetic is a dual use space technology startup building a completely new architecture for space operations – one that brings the advantages of proliferated drone technology (low-cost, operationally flexible, attainable, distributed) to space missions while reducing the ecosystem's reliance on consumable fuel. Our goal is to move away from one-to-one space architectures – where each satellite in a constellation has one (or a small # of) primary payloads attached to the bus -- and unlock a 'one-to-many' system, where each satellite has a large number of payloads which can be deployed from their host spacecraft at high velocities without firing a thruster.
NewSenior Mechanical Engineer FurientisSenior Mechanical EngineerLos Angeles, CACoordinate with aero on outer mold line implementation, with propulsion on case and nozzle integration, with avionics on tray and harness routing, with the seeker team on optical-package interfaces, and with the Control Actuation System Engineer on fin actuator integration into the airframe: hinge supports, OML cutouts, and sealing. Job Description America is critically deficient in production of defensive munitions- we currently produce shipborne interceptors in the few hundreds per year while our adversaries are producing offensive threats in the tens of thousands per year.
NewMachine Design Engineer Space KineticMachine Design EngineerEl Segundo, CA$100,000–$140,000 / yearWho We Are: Space Kinetic is a dual use space technology startup building a completely new architecture for space operations – one that brings the advantages of proliferated drone technology (low-cost, operationally flexible, attainable, distributed) to space missions while reducing the ecosystem's reliance on consumable fuel. Our goal is to move away from one-to-one space architectures – where each satellite in a constellation has one (or a small # of) primary payloads attached to the bus -- and unlock a 'one-to-many' system, where each satellite has a large number of payloads which can be deployed from their host spacecraft at high velocities without firing a thruster.
NewMechanical Engineer FurientisMechanical EngineerLos Angeles, CACoordinate with aero on outer mold line implementation, with propulsion on case and nozzle integration, with avionics on tray and harness routing, with the seeker team on optical-package interfaces, and with the Control Actuation System Engineer on fin actuator integration into the airframe: hinge supports, OML cutouts, and sealing. Job Description America is critically deficient in production of defensive munitions- we currently produce shipborne interceptors in the few hundreds per year while our adversaries are producing offensive threats in the tens of thousands per year.
NewMechanical Engineer ThinKom SolutionsMechanical EngineerHawthorne, CA$70,000–$100,000 / yearKnowledge in the areas of materials, structural and thermal analysis, dynamics, vibration and mechanical shock, heat transfer, and finite element analysis. Solid model design, geometric dimensioning and tolerancing, and detailed drawing experience, preferably using Creo or similar CAD software.
NewDevelopment Engineer, Solid Rocket Motors FurientisDevelopment Engineer, Solid Rocket MotorsLos Angeles, CAThat covers motor architecture, grain design, internal ballistics, performance prediction, igniter design, case and nozzle integration, and the work of tying predicted, ground-tested, and flight-test motor behavior together so the model keeps getting better after every fire. AI-native working style: daily use of agentic coding tools (Claude Code, Codex, OpenCode, or similar) for ballistic-code scripting, performance prediction, and post-test data reduction.
NewSatellite Mechanical Engineer K2 SpaceSatellite Mechanical EngineerLos Angeles, CA$90,000–$140,000 / 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. Demonstrated ability to own mechanical hardware or systems within an integrated engineering team outside a classroom setting (High Power Rocketry, CubeSats, Robotics Competitions, Formula SAE and Baja SAE, Engineers without Borders, Design-Build-Fly, NASA student launch, personal entrepreneurial ventures, etc.).
NewThermal Protection System Engineer Canopy A&DThermal Protection System EngineerIrvine, CA$120,000–$180,000 / yearTo conform to US Government export regulations, the applicant must be a (i) US Citizen, (ii) lawful permanent resident of the U.S. (aka green card holder), (iii) protected individual as defined by U.S.C. 1324b(a)(3), or (iv) eligible to obtain the required authorizations from the U.S. Department of State. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information.
NewPrincipal Mechanical Engineer K2 SpacePrincipal Mechanical EngineerLos Angeles, CA$185,000–$200,000 / 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. In your first 6 months, you will define mechanical requirements, create initial concepts and trades, perform preliminary and detailed analysis, define development test campaigns, trade and select any purchased electromechanical subsystems, and produce development hardware.
NewSenior Satellite Mechanical Engineer (Structures) K2 SpaceSenior Satellite Mechanical Engineer (Structures)Los Angeles, CA$140,000–$175,000 / 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. In your first 6 months, you will define mechanical requirements, create initial concepts and trades, perform preliminary and detailed analysis, define development test campaigns, trade and select any purchased electromechanical subsystems, and produce development hardware.
NewSenior Mechanical Engineer, Mechanisms Radiant IndustriesSenior Mechanical Engineer, MechanismsEl Segundo, CA$133.50–$184.80 / hourPortable 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. Perform detailed thermomechanical analysis (static strength, durability/fatigue) and kinematic analysis to determine structural integrity and performance margins using both hand calculations and finite element tools.