NewSr. Mechanical Engineer - MEP Consulting Marx Okubo and Assoc.Sr. Mechanical Engineer - MEP ConsultingHuntington Beach, CA$135,000–$155,000 / yearJob Description As a trusted national architecture/engineering/construction consulting firm, Marx Okubo works with real estate owners, investors, and lenders—at every point of the property lifecycle—to evaluate their building projects, solve complex challenges and implement tailored solutions. Ideal candidates will possess a BSME or BSAE w/mechanical specialty, PE, and at least 15 years' experience in the engineering design and evaluation of large scale building mechanical, electrical, plumbing and fire protection systems .
NewMechanical Engineer RimePro IncMechanical EngineerHuntington Beach, CA$135,000–$150,000 / yearAs a Senior/Lead Mechanical Engineer, you will be responsible for leading preconstruction design efforts and design meetings, working closely with project teams to ensure seamless coordination. With a strong reputation for excellence in mechanical engineering and HVAC system design, we are seeking a Senior/Lead Mechanical Engineer to join our team onsite in Costa Mesa, CA.
NewMechanical Engineer - Structural Analysis & Hardware Development Approach VentureMechanical Engineer - Structural Analysis & Hardware DevelopmentLos Angeles, CA$100,000–$140,000 / yearThis is an excellent opportunity for an early-career engineer looking to take on meaningful ownership while working alongside experienced engineers developing complex physical systems. This role offers broad exposure across mechanical design, structural analysis, hardware integration, manufacturing, and testing within a fast-moving startup environment.
NewSenior Mechanical Engineer Schnackel Engineers IncSenior Mechanical EngineerPasadena, CACoordinate with the client, the MEP/FP/IT design team, and other consultants to ensure the design is consistent with the client’s vision, to identify and resolve areas of conflict, to ensure a fully coordinated interdisciplinary design, and to ensure the design schedule is maintained. Key responsibilities include conducting load calculations, selecting equipment, developing system layouts, preparing detailed drawings and specifications, and coordinating with other engineering disciplines.
NewMechanical Engineer - Plumbing Harley Ellis DevereauxMechanical Engineer - PlumbingLos Angeles, CAIndividuals in this role are expected to deepen their technical knowledge, begin supporting client interaction, and develop the critical thinking required for future engineering leadership roles. An understanding of the financial status of projects as they progress, development of cost budgets for projects, value of client relationships and be able to deliver projects with a focus on the quality is preferred.
NewSenior Mechanical Engineer Percy TowersSenior Mechanical EngineerLos Angeles, CA$160,000–$225,000 / yearFlight Heritage: Proven experience designing primary structures/airframes for spacecraft, launch vehicles, or re-entry systems that have successfully gone to space (or through advanced test/flight cycles). Experience: 5 to 10+ years of deep mechanical/structural engineering experience, ideally within a modern space startup, launch vehicle manufacturer, or a specialized "Skunk Works" advanced program.
NewSenior Mechanical Engineer DivergentSenior Mechanical EngineerLos Angeles, CA$128,520–$176,720 / yearWork involves regular interaction with industrial equipment and may include moving machinery, elevated noise, metal powders, inert gas systems, lasers, and high-power electrical equipment. Lead technical coordination across engineering, manufacturing, quality, supply chain, suppliers, and other stakeholders; communicate decisions, status, risks, actions, and required support clearly.
NewSenior Opto-Mechanical Engineer Relativity SpaceSenior Opto-Mechanical EngineerLong Beach, CA$142,000–$214,000 / 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. By creating a sustainable model for interplanetary exploration, we are transforming space science from an occasional event into a continuous process of discovery that accelerates knowledge, broadens participation, and inspires the next generation of explorers.
NewMechanical Engineer, Interceptor GITAIMechanical Engineer, InterceptorLos Angeles, CA$100,000–$155,000 / yearTo conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), GITAI 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. Field assignments may involve multi-day stays, early departures, long test days, changing schedules, outdoor work, dust, heat, cold, and occasional evening or weekend work.
NewPrincipal Electronics Design Engineer FEI-ZyferPrincipal Electronics Design EngineerGarden Grove, CASystems engineering experience working with internal and external customers to develop hardware and software requirements, solutions, and documentation for new products. Reliability engineering including reliability predictions (MTBF) and Failure Mode Effects & Criticality Analysis (FMECA).
NewSenior Mechanical Engineer VerustructSenior Mechanical EngineerTorrance, CADesign mechanical subsystems for wall-supported robotic construction equipment, including automated formwork, locomotion, material delivery, consolidation, and auxiliary construction tools. Working closely with controls, materials, structural engineering, and manufacturing, you’ll take complex hardware subsystems from concept through CAD, analysis, prototyping, testing, and deployment.
NewMechanical Engineer - Healthcare Harley Ellis DevereauxMechanical Engineer - HealthcareLos Angeles, CAThis role manages major portions of mechanical and plumbing scopes, guides QAQC efforts, mentors team members, and represents the discipline in client-facing settings. The Mechanical Engineer is a technical expert and high-level engineer who experienced in healthcare, responsible for technical execution, design leadership, and interdisciplinary coordination of complex mechanical systems.
NewMechanical Engineer Mycronic USAMechanical EngineerRedondo Beach, CASurfx Technologies is a fast-growing company that offers atmospheric argon plasmas for the high-volume manufacturing of integrated circuits, semiconductor packages, printed circuit boards, and other microelectronic devices. This is an excellent opportunity for a hands-on engineer who enjoys solving real-world problems, working with cutting-edge technology, and growing professionally in a dynamic hardware development and manufacturing environment.
NewSenior Mechanical Engineer - Aerospace & Defense Machina LabsSenior Mechanical Engineer - Aerospace & DefenseLos Angeles, CAAs a key member of the engineering team, you will own the release of engineering documentation, oversee our Product Data Management (PDM) system, mentor engineers across manufacturing and process engineering, and ensure that designs are optimized for production, quality, and scalability. This position is ideal for an experienced engineer who enjoys balancing technical execution with engineering leadership and is passionate about developing robust design processes in a collaborative startup environment.
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.
NewSenior Spacecraft Mechanical Engineer II Rocket Lab CorporationSenior Spacecraft Mechanical Engineer IILong Beach, CA$132,000–$176,000 / 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.
NewSenior Hardware Engineer, Power Electronics Relativity SpaceSenior Hardware Engineer, Power ElectronicsLong Beach, CA$148,000–$222,000 / 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. You will oversee hardware development through the entire product lifecycle from concept to flight maturity to include initial design, board bring-up, design verification, qualification, initial flight production, integration, and vehicle operations.
NewMechanical Engineer (New Grad Summer 2027) FreeformMechanical Engineer (New Grad Summer 2027)Los Angeles, CA$95,000–$110,000 / yearJob Description MECHANICAL ENGINEER (NEW GRAD SUMMER 2027) Freeform builds AI-native manufacturing systems that unify software, hardware, and physics to produce industrial-scale parts at the speed of human ideation. In addition to the significant stock option package, the estimated salary range for this role is $95,000-$110,000, dependent on the candidate's academic level (Bachelors, Masters, or PhD) and demonstrated out of classroom experience.
NewMechanical Engineer (New Grad December 2026) FreeformMechanical Engineer (New Grad December 2026)Los Angeles, CA$95,000–$110,000 / yearJob Description MECHANICAL ENGINEER (NEW GRAD DECEMBER 2026) Freeform builds AI-native manufacturing systems that unify software, hardware, and physics to produce industrial-scale parts at the speed of human ideation. In addition to the significant stock option package, the estimated salary range for this role is $95,000-$110,000, dependent on the candidate's academic level (Bachelors, Masters, or PhD) and demonstrated out of classroom experience.
NewSenior Mechanical Engineer, Fluid Systems Radiant IndustriesSenior Mechanical Engineer, Fluid SystemsEl Segundo, CA$158,000–$219,450 / yearPortable 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.