Systems Engineer 6 The Structures CompanySystems Engineer 6El Segundo, CABachelor of Science degree from an accredited course in engineering, engineering technology (including manufacturing engineering technology), chemistry, physics, mathematics, data science, or computer science. As trusted partners to leading aerospace and defense OEMs and Tier 1 suppliers, we connect professionals with career opportunities to grow and excel in aviation, aerospace, and defense.
Combustion Analysis Engineer Arbor EnergyCombustion Analysis EngineerEl Segundo, CaliforniaOur 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. 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.
Lead Combustion Engineer Arbor EnergyLead Combustion EngineerEl Segundo, CaliforniaOur Lead Combustion Engineer serves as the technical authority pioneering our rocket-inspired, high-pressure oxy-fuel combustion systems - integral in delivering carbon-neutral and carbon-negative power cycles at scale. 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.
Design Engineer (Combustion Devices) Arbor EnergyDesign Engineer (Combustion Devices)El Segundo, CaliforniaOur 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.
Sr. Thermodynamics Performance Engineer Arbor EnergySr. Thermodynamics Performance EngineerEl Segundo, CaliforniaYou'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. 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.
Sr. Heat Exchanger Engineer Arbor EnergySr. Heat Exchanger EngineerEl Segundo, CaliforniaLead 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. 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.
Thermodynamics Performance Engineer Arbor EnergyThermodynamics Performance EngineerEl Segundo, California$140,000–$155,000 / 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. 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.
Sr. Mechanical Engineer - Turbomachinery Arbor EnergySr. Mechanical Engineer - TurbomachineryEl Segundo, CaliforniaArbor’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 CO from the atmosphere and store it permanently underground, while ensuring food security, rural livelihoods, and biodiversity are not affected.
Sr. Combustion Engineer Arbor EnergySr. Combustion EngineerEl Segundo, CaliforniaOur 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.
Sr. Combustion Engineer (Syngas Oxyfuel) Arbor EnergySr. Combustion Engineer (Syngas Oxyfuel)El Segundo, CaliforniaCombustion 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.
Sr. Heat Transfer Engineer - Turbomachinery Arbor EnergySr. Heat Transfer Engineer - TurbomachineryEl Segundo, California$150,000–$175,000 / yearArbor’s team of world-class engineers and scientists aredeveloping 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 CO from the atmosphere and store it permanently underground, while ensuring food security, rural livelihoods, and biodiversity are not affected.
Senior Manager, Embedded Systems Engineering Radiant NuclearSenior Manager, Embedded Systems EngineeringEl Segundo, CARadiant is seeking a Senior Manager of Embedded Engineering to lead the embedded software engineering team through the critical path to commercialization, planning and executing the embedded software architecture for I&C systems with a direct line to Kaleidos' 2028 deployment target. 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.
Enablement Associate - Growth Team NominalEnablement Associate - Growth TeamLos Angeles, CaliforniaWe serve top-tier commercial and defense customers, from autonomy leaders like Anduril and Shield AI to next-generation aerospace teams like Hermeus and REGENT, and performance engineering teams like Pratt Miller Motorsports, alongside mission partners within the U.S. Navy and U.S. Air Force on programs where failure isn’t an option. You will help manage the infrastructure that keeps our enablement programs running - from generating programs and content to make our sellers more productive, maintaining our seller onboarding & enablement platform, managing our internal sales hub to coordinating cross-functional stakeholders around strategic program.
R -6B1BI4-Design and Analysis Engineer 4 - 668-Communication / Network Systems Design SearchProsR -6B1BI4-Design and Analysis Engineer 4 - 668-Communication / Network Systems DesignEl Segundo, CA$80–$97 / hourBachelor of Science degree in Engineering (with a focus in Electrical, Mechanical or Aeronautical), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement. Bachelor, Master or Doctorate of Science degree from an accredited course of study, in engineering, computer science, mathematics, physics or chemistry.
Mechanical Systems Design & Analysis Engineer 3 The Structures Company, LLCMechanical Systems Design & Analysis Engineer 3Long Beach, CAPerform design and analysis for systems including air conditioning, cabin pressure control, equipment cooling, cargo fire protection, ice/rain protection, pneumatics, and oxygen systems . Keywords: aerospace, aviation, mechanical systems, ECS, aircraft design, CATIA V5, GD&T, defense engineering, spares engineering, environmental control systems.
Senior Mechanical Engineer Valar AtomicsSenior Mechanical EngineerTorrance, California$140,000–$185,000 / yearYou'll work closely with cross-functional teams to bring innovative products from concept to production, and serve as a technical leader and mentor for less experienced engineers. As part of the Engineering organization, Mechanical Engineering designs and develops the mechanical systems, components, and equipment that power Valar's advanced nuclear technologies.
NewSpace Electronics Test Systems Mechanical Design Engineer (Associate, Experienced and Lead) BoeingSpace Electronics Test Systems Mechanical Design Engineer (Associate, Experienced and Lead)El Segundo, CaliforniaYour expertise will have a direct impact on crucial missions, such as the development of the Wideband Global SATCOM (WGS) system - a high capacity satellite communications system for the United States Defense Department; the X-37B - an unmanned, reusable spaceplane; the CST-100 Starliner - a spacecraft designed to transport crew to the International Space Station and private space stations of the future, and many more space based missions! Experienced, Level 3 : Education/experience typically acquired through advanced technical education from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), computer science, engineering data science, mathematics, physics or chemistry (e.g.
Systems Engineer 6 The Structures Company, LLCSystems Engineer 6El Segundo, CABachelor of Science degree from an accredited course in engineering, engineering technology (including manufacturing engineering technology), chemistry, physics, mathematics, data science, or computer science. As trusted partners to leading aerospace and defense OEMs and Tier 1 suppliers, we connect professionals with career opportunities to grow and excel in aviation, aerospace, and defense.
Systems Engineer 5 - Survivability, Vulnerability & Susceptibility The Structures Company, LLCSystems Engineer 5 - Survivability, Vulnerability & SusceptibilityEl Segundo, CAAs trusted partners to major aerospace OEMs and Tier 1 suppliers, we connect professionals with opportunities to grow and excel in the aviation and aerospace industries. Bachelors + 14 yrs, Masters + 12 yrs, or PhD + 9 yrs in Engineering, Computer Science, Physics, Mathematics, or Chemistry from an accredited institution.
Sr. Test Instrumentation Engineer The Structures Company, LLCSr. Test Instrumentation EngineerIrvine, CADesign, develop, and support test instrumentation systems, including test software, fixtures, and racks for component acceptance/qualification, structural testing, materials testing, and environmental testing. 8+ years of experience in test instrumentation, including test software, fixtures, and/or racks used for component acceptance/qualification, structural testing, materials testing, or environmental testing.