NewAdvanced Hardware Design Engineer Honeywell - AEROSPACEAdvanced Hardware Design EngineerAlhambra, AZOur systems are on board 90% of the world's aircraft - serving commercial aviation, defense and space operators from integrated flight deck platforms with 30-plus years in service to radiation-hardened systems trusted for human spaceflight. Honeywell Aerospace products and services are found on aircraft across commercial aviation, defense and space - from engines and cockpit electronics to cabin systems, mechanical components and connectivity solutions.
Test Engineer II (Torrance, CA) - 2 positions GCR Professional ServicesTest Engineer II (Torrance, CA) - 2 positionsTorrance, California$36–$46 / hourContractorTest Planning and Strategy: Collaborate with cross-functional teams, including design engineers and project managers, to understand the requirements and specifications of defense and aerospace systems. Test Automation and Continuous Improvement: Identify opportunities for test automation and develop automated test scripts and frameworks to streamline testing processes and increase efficiency.
NewMechanical Design Engineer - Advanced Spacecraft Propulsion Approach VentureMechanical Design Engineer - Advanced Spacecraft PropulsionHawthorne, CA$130,000–$180,000 / yearYou will design precision mechanical components, perform structural and thermal analysis, build and test hardware, and work closely with multidisciplinary engineering teams to deliver reliable propulsion systems capable of operating in demanding space environments. Our team combines experience from leading aerospace organizations with the agility of a venture-backed startup, creating an environment where engineers have significant ownership, move quickly, and directly influence product development from concept through flight.
NewCombustion Analysis Engineer Arbor EnergyCombustion Analysis EngineerEl Segundo, CA$130,000–$150,000 / yearRole Overview We're looking for a Combustion Analysis Engineer to perform fluid, thermal, and structural analyses on our novel combustion systems—bringing high-performance engineering to the fight against climate change. Our advanced power systems deliver clean, reliable baseload electricity with zero operating emissions—modular, fuel-flexible, and engineered for the realities of today's energy demand.
NewSr. Mechanical Engineer - Turbomachinery Arbor EnergySr. Mechanical Engineer - TurbomachineryEl Segundo, CA$150,000–$175,000 / yearArbor's team of world-class engineers and scientists are developing a scalable, low-cost approach to Bioenergy with Carbon Capture and Storage (BECCS) based on modern rocket engine technology. BECCS is a carbon dioxide removal (CDR) approach that uses biomass to produce energy and remove CO₂ from the atmosphere and store it permanently underground, while ensuring food security, rural livelihoods, and biodiversity are not affected.
NewSr. Heat Exchanger Engineer Arbor EnergySr. Heat Exchanger EngineerEl Segundo, CA$165,000–$180,000 / yearLead in-house design and development of advanced compact heat exchangers, including printed circuit heat exchangers (PCHEs) and components produced by additive manufacturing (AM) in materials such as 316SS, Inconel 625, and Haynes 282; apply design for additive manufacturing (DfAM) principles to translate geometric freedom into manufacturable, high-performing hardware. Responsibilities Own the thermal-hydraulic design of all heat exchangers in the Arbor power system—recuperators, precoolers, primary heat exchangers, and water and air coolers—from conceptual sizing through detailed design, balancing performance, pressure drop, and cost.
NewSr. Thermodynamics Performance Engineer Arbor EnergySr. Thermodynamics Performance EngineerEl Segundo, CA$165,000–$180,000 / yearYou'll be the person who turns integrated system behavior into clear, actionable insight — running performance studies ahead of test campaigns, reconciling predictions against test data, and growing our modeling capability into a digital-twin-quality simulation platform that supports controls development, trip response, and eventual hardware-in-the-loop testing. Preferred Qualifications Deep experience with industry dynamic simulation platforms (such as GT-SUITE, Modelica/Dymola, NPSS, Flownex, Simcenter Amesim, or equivalent) applied to turbomachinery, power cycles, or closed-loop thermal-fluid systems.
NewMechanical Design Engineer - Advanced Electrochemical Systems Approach VentureMechanical Design Engineer - Advanced Electrochemical SystemsLos Angeles, CA$130,000–$180,000 / yearOur multidisciplinary engineering team is developing integrated propulsion, power, and fluid systems that enable more capable spacecraft while solving complex engineering challenges through rapid design, testing, and iteration. Join a seed-stage space technology startup developing advanced spacecraft propulsion and energy systems that enable the next generation of in-space mobility.
NewSr. Combustion Engineer (Syngas Oxyfuel) Arbor EnergySr. Combustion Engineer (Syngas Oxyfuel)El Segundo, CA$150,000–$175,000 / yearCombustion Engineer (Syngas Oxyfuel) helps pioneer our rocket-derived, high-pressure combustion systems for carbon-negative power cycles, burning our biomass-produced syngas in a high efficiency combustor. In this role, you'll take syngas oxy-combustion from lab-scale characterization to implementation running off of gasifier syngas within a year and carry what you learn into the development of fuel-flexible combustors at the heart of our commercial product.
NewSr. Combustion Engineer Arbor EnergySr. Combustion EngineerEl Segundo, CA$150,000–$175,000 / yearOur advanced power systems deliver clean, reliable baseload electricity with zero operating emissions—modular, fuel-flexible, and engineered for the realities of today's energy demand. Our team includes aerospace engineers, combustion experts, and systems thinkers with a shared goal: to build technology worthy of the world we want to live in.
NewFluids Engineer - Advanced Spacecraft Propulsion Approach VentureFluids Engineer - Advanced Spacecraft PropulsionLos Angeles, CA$125,000–$175,000 / yearOur engineering team is building highly integrated propulsion, fluid, and energy systems that enable more capable spacecraft while solving complex engineering challenges through rapid design, testing, and iteration. You will work across spacecraft, propulsion, cryogenic, and thermal fluid systems while collaborating closely with multidisciplinary engineering teams to deliver reliable, flight-ready hardware.
NewSenior AI/ML Engineer CB Smart RecruitSenior AI/ML EngineerLos Angeles, CA$180,000–$350,000 / yearThis role is best suited for engineers who have successfully shipped production ML systems—not just research prototypes—and who enjoy building scalable AI infrastructure capable of processing large volumes of heterogeneous data in real time. About the Opportunity Our client is an AI-native technology company building a next-generation AI intelligence platform that ingests data from satellite feeds, autonomous sensors, logistics networks, structured enterprise data, and open-source intelligence (OSINT).
NewPrincipal RF Antenna Engineer, Top Secret Clearance K2 SpacePrincipal RF Antenna Engineer, Top Secret ClearanceLos Angeles, CA$200,000–$270,000 / 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. Assist with design and validation testing for radiofrequency and microwave hardware from UHF through Ka band, including phased array antennas, low noise amplifiers, power amplifiers, filters, high speed converters, and other RF electronic components.
NewSpike Inlet Mechanisms Build Engineer HermeusSpike Inlet Mechanisms Build EngineerLos Angeles, CA$91,800–$112,200 / yearThe 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. Lead the build, test, and integration of complex aerospace mechanisms including the spike inlet mechanism, flow control door mechanisms, and associated hydraulic actuators, valves, linkages, and structural assemblies.
NewMechanical Thermal Engineer Bastion TechnologiesMechanical Thermal EngineerLa Cañada Flintridge, CA$140,000–$180,000 / yearDRUG AND ALCOHOL SCREENING REQUIRED:All Bastion employees must be able to pass a pre-employment drug screen and are required to participate in periodic random drug and alcohol screenings. Proficient in thermal and structural design and analysis software such as Thermal Synthesizer System (TSS), ANSYS, COSMOS, Thermal Analyzer System (TAS), and Solid Works or equipment.
NewSr. Mechanical Engineer Terran Orbital CorporationSr. Mechanical EngineerIrvine, CA$105,000–$155,000 / yearTerran Orbital provides end-to-end satellite solutions by combining satellite design, production, launch planning, mission operations, and on-orbit support to meet the needs of the most demanding military, civil, and commercial customers. Mechanical Engineer will will lead or contribute to all aspects of spacecraft mechanical design, including spacecraft layout, structural and thermal sub-system design, mechanism design, payload and launch vehicle integration, through all stages of product lifecycle.
NewSenior Thread Roll Engineer Sonic Industries, Inc.Senior Thread Roll EngineerTorrance, CAThis role is ideal for a seasoned engineer with deep hands‑on experience in Reed thread‑rolling machines, cylindrical dies, flat dies, and fillet‑roll operations. In lieu of a degree, candidates with 15+ years of aerospace fastener or precision‑manufacturing experience will be considered, provided they currently hold, and can demonstrate, an engineering level role by trade.
NewSenior Quality Engineer Votaw Precision Technologies, LLC.Senior Quality EngineerSanta Fe Springs, CAPartnering closely with Engineering, Manufacturing, Supply Chain, Program Management, and Customers, this position is responsible for improving quality at the source by reducing defects, eliminating root causes, improving first-pass yield, increasing throughput, and reducing the Cost of Poor Quality. This role serves as a builder and change agent, establishing scalable quality processes, strengthening cross-functional accountability, and driving continuous improvement initiatives that directly improve manufacturing performance, customer satisfaction, profitability, and EBITDA.
NewSenior Launch Vehicle Design Engineer I CesiumAstroSenior Launch Vehicle Design Engineer IEl Segundo, CAJob Description Please 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. In this role, you will work across multidisciplinary engineering teams to solve complex technical challenges, drive system-level design trades, and ensure mission success through rigorous analysis, testing, and validation.
NewQuality Engineer Wilder SystemsQuality EngineerSouth Gate, CAThis position works closely with Engineering, Manufacturing, Purchasing, and Customers to resolve quality issues, perform root cause investigations, and ensure products meet all contractual and technical requirements. The Quality Engineer is responsible for supporting the Quality Management System (QMS), ensuring compliance with customer, regulatory, and industry requirements, and driving continuous improvement throughout manufacturing operations.