Mechanical Engineer Tetra Tech IncMechanical EngineerLos Angeles, CA$110,000–$130,000 / yearOur 25,000 employees work together to provide clear solutions to complex problems by Leading with Science to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition. About Tetra Tech: Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide.
Mechanical Engineer, Life Science Barry-WehmillerMechanical Engineer, Life SciencePasadena, CA$110,000–$150,000 / yearHighly desired is experience in the design of Life sciences, facility/building mechanical systems including HVAC (inclusive of air handling units, chemical and laminar fume hoods, unit heaters/coolers, etc.), water, chilled water/glycol, wastewater, cold/warm rooms, clean rooms, cooling towers/condensers, boiler/steam/condensate systems, hot water and hydronic systems, compressed gases (air, O2, N2, CO2, etc.), waste/drain and other plumbing systems. Work with other licensed engineers and experienced designers to design mechanical systems including water, chilled water, HVAC, wastewater, cooling towers/condensers, boiler/steam or hot water systems, compressed air, and other plumbing systems for custom, industrial applications for manufacturing, distribution, and other industrial and commercial facilities.
Mechanical Engineer 2 DLR GroupMechanical Engineer 2Los Angeles, CAPosition Summary: As a Senior Mechanical Engineer, you will be responsible for leading design of mechanical systems for buildings across a variety of sectors including Higher Education, Culture & Performing Arts, Healthcare, K-12, Justice/Civic and Energy. You will lead mechanical engineering teams to produce high-quality construction documents using Revit and manage project schedules to meet deliverable requirements.
Senior Mechanical Engineer Eichleay IncSenior Mechanical EngineerLos Angeles, CA$115,000–$145,000 / yearWhile performing duties of this job, you would occasionally be required to stand, walk, sit, reach with hands and arms, climb or balance, stoop or kneel, talk and hear (this includes being able to hear and talk on site based communication equipment), distinguish between various colors, be able to hear safety tones/notifications, and use fingers and hands to feel objects, tools, temperature or controls. Technical Competence: Advanced experience developing, reviewing, and approving technical documents and drawings to support the procurement, repair, or modification of fixed and rotating equipment, including pressure vessels, tanks, separators, filters, heat transfer equipment, pumps and compressors.
Senior Mechanical Engineer (Accurate Landing) InversionSenior Mechanical Engineer (Accurate Landing)Los Angeles, CA$137,000–$193,000 / yearITAR Compliance: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. As a Senior Mechanical Design Engineer at Inversion, you will play a critical role in the design, packaging, and rapid iteration of hardware across multiple spacecraft and hypersonic development programs.
Mechanical Engineer Nenni and AssociatesMechanical EngineerLos Angeles, CaliforniaJob Duties and Responsibilities: Collaborate and mentor junior engineers to design the mechanical and plumbing components of energy-efficient buildings. Our client is a very well-established ESCO who is currently seeking a Senior Mechanical Engineer to join their team within the Southern California market!
Mechanical Engineer I Affiliated Engineers, Inc.Mechanical Engineer ILos Angeles, CAAEI consistently earns national recognition from leading industry publications, including Building Design+Construction, Engineering News-Record, and Consulting-Specifying Engineer, with distinctions such as being named the #1 Laboratory Engineering Firm in the nation and receiving multiple Best of the Best Project awards, underscoring the lasting legacy of our work. As you gain project experience, you will take on a greater role in leading mechanical project teams, writing specifications, participating in project meetings with clients and other consultants, and supporting construction-phase work.
Principal Water Treatment Design EngineerManager Arcadis NVPrincipal Water Treatment Design EngineerManagerLos Angeles, CA$170,000–$220,000 / yearRole accountabilities: As a Principal Water Treatment Design Engineer/Manager, you will leverage your technical expertise and leadership skills to successfully deliver municipal water and wastewater projects while supporting client growth and team development. The successful candidate will also have proven client relationship and business development experience, including preparing proposals, managing client engagements, and delivering engineering projects that consistently meet or exceed client expectations.
Facilities Mechanical Engineer Motive CompaniesFacilities Mechanical EngineerCanoga Park, CA$70–$75 / hourManage facilities projects: including internal customer interface, external contractor interface, leading Project Teams, developing project scope, schedule, cost, generating and reviewing/approving work authorizations and invoices for payment. Strong skills in leadership, teamwork, Risk and Opportunity Management, and ability to communicate effectively with all levels of management, customer personnel, outside agencies, suppliers and others.
Senior Mechanical Engineer Parallel SystemsSenior Mechanical EngineerLos Angeles, CaliforniaParallel Systems is pioneering autonomous battery-electric rail vehicles designed to transform freight transportation by shifting portions of the $900 billion U.S. trucking industry onto rail. Parallel Systems is seeking a Senior Mechanical Engineer with expertise in dynamics, simulation, and CAD design to help us design the next generation of our self-propelled rail vehicles.
Mechanical Engineer Allient IncMechanical EngineerLos Angeles, CAPrimary responsibility of taking modeled Electro-Magnetic motor designs and turning generating mechanical prints (CAD), design tooling for key production steps, determining vendors to source material, and some level of project management. Need to attend meetings: weekly engineering meetings, schedule reviews, internal or customer-attended design reviews, and production readiness reviews.
Senior Mechanical Engineer Syska HennessySenior Mechanical EngineerLos Angeles, CaliforniaProject Manager Responsibilities: Take ownership of the client's and the firm's project goals in terms of project contract management, understanding and managing client expectations, tight project schedule control, controlling and optimizing project financials including billing and collections, and ensuring optimal project information flow (internally and externally). The capability to fully design mechanical systems for building types such as Healthcare, Aviation projects, Commercial and Mission Critical would be a major plus and good fit for this dynamic role.
Facilities Mechanical Engineer Motive Workforce SolutionsFacilities Mechanical EngineerCanoga Park, CAManage facilities projects: including internal customer interface, external contractor interface, leading Project Teams, developing project scope, schedule, cost, generating and reviewing/approving work authorizations and invoices for payment. Lead and support Facilities Projects in the development of Mechanical Engineering designs, calculations, specifications, and cost estimates for Equipment Acquisitions, Facility renovations, and Construction projects.
Mechanical Engineer (PE) - Los Angeles General MatterMechanical Engineer (PE) - Los AngelesLos Angeles, California$90,000–$175,000 / yearYou will have the opportunity to work on a greenfield project collaborating with structural engineers, electrical engineers, architects, and both internal and external partners to develop detailed mechanical designs and specifications. Prepare and review code-compliant designs up to permit level, create comprehensive drawing sets (Revit/AutoCAD), and produce calculations, specifications, and technical reports for design validation.
Senior Mechanical Engineer Machina LabsSenior Mechanical EngineerChatsworth, CAMachina Labs is seeking a Senior Mechanical Engineer with robotics hardware experience to lead design and integration of advanced manufacturing and mechatronic systems through our robotic forming platform. Whether you’re a defense prime building a few thousand airframes or an automaker building next-generation panels, Machina Labs gives you the ability to iterate and manufacture at the speed of software.
Mechanical Engineer Freeform Future CorpMechanical EngineerLos Angeles, CA$90,000–$140,000 / yearAs a Mechanical Engineer at Freeform, you will own projects cradle to grave as a responsible engineer, taking advanced manufacturing hardware from initial concept through design, fabrication, testing, and deployment. The ideal candidate is capable of running projects with little oversight, is an extreme problem solver with the ability to move fast without missing important details, and has the ability to work effectively with other engineering disciplines.
Mechanical Engineer New Grad December 2026 Freeform Future CorpMechanical Engineer New Grad December 2026Los Angeles, CA$95,000–$110,000 / yearIn 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. The ideal candidate thrives in ambiguity, can drive technically challenging projects with minimal oversight, and collaborates effectively across disciplines to deliver novel hardware solutions at scale.
(8690) Mechanical Engineer - GSE III PDS Inc, LLC(8690) Mechanical Engineer - GSE IIINorth Hollywood, CAYou will design, modify, and maintain mechanical ground support equipment and toolingincluding fixtures, handling devices, alignment tools, and test hardwareto enable safe, efficient, and repeatable operations across manufacturing and test environments. You will collaborate closely with systems engineering, manufacturing, quality, test, and supply chain teams to ensure designs are producible, maintainable, and compliant with engineering intent.
Mechanical Engineer PEAK Technical Services Inc.Mechanical EngineerChatsworth, CA$45–$55 / hourYour role involves providing technical assistance to internal departments, suppliers, and customers, with guidance from senior engineers, and supporting peer reviews of generated component documents, drawings, operating procedures, and work instructions. 2-4 years of experience in the aerospace industry; experience in other industries with the development and manufacture of electro-mechanical components can be considered in lieu of aerospace experience.
Senior Mechanical Engineer Cordoba CorporationSenior Mechanical EngineerLos Angeles, CaliforniaRemote$175,000–$230,000 / yearFull timeEngineering News-Record (ENR) has consistently ranked us as a “top 100 construction management firm” and a “top 50 program management firm.” Coordinate with project managers, electrical engineers, civil engineers, and other disciplines to ensure cohesive project delivery.
Lead Mechanical Engineer - Buildings WSP Global IncLead Mechanical Engineer - BuildingsLos Angeles, CA$122,700–$182,200 / yearAny unsolicited resumes, including those submitted to hiring managers or other business leaders, will become the property of WSP and WSP will have the right to hire that candidate without reservation - no fee or other compensation will be owed or paid to the recruiter, employment agency, or other staffing service. WSP USA is providing the compensation range that the company in good faith believes it might pay and offer for this position, based on the successful applicant's education, experience, knowledge, skills, abilities in addition to internal equity and specific geographic location.
Senior Mechanical Engineer Machina Labs IncSenior Mechanical EngineerChatsworth, CA$145,000–$170,000 / yearJob Description: Machina Labs is seeking a Senior Mechanical Engineer with robotics hardware experience to lead design and integration of advanced manufacturing and mechatronic systems through our robotic forming platform. Whether you're a defense prime building a few thousand airframes or an automaker building next-generation panels, Machina Labs gives you the ability to iterate and manufacture at the speed of software.
Senior Mechanical Engineer Purple Lemon RecruitmentSenior Mechanical EngineerLos Angeles, CaliforniaYou will translate high-level ideas into functional mechanical systems, validate concepts through experimentation, and reduce technical risk before full-scale development. This role sits upstream of traditional product development, working on concept generation, feasibility, and prototyping to enable future product platforms.
mechanical-engineer-onsite-energy-power-multiple-locations Burns & McDonnellmechanical-engineer-onsite-energy-power-multiple-locationsLos Angeles, CA$110,000–$220,000 / yearDescription The Mechanical Engineer will work on project teams to create world class designs for new projects, alterations, and redevelopments on a variety of projects including power, process, corporate, healthcare, pipeline, airports, institutional, industrial, manufacturing, government, and military facilities. Modify and review production drawings for a variety of projects including but not limited to power plants, process facilities, industrial facilities, healthcare facilities, airports, educational institutions, commercial, and governmental and military facilities.
mechanical-engineer-aerospace-industrial-multiple-locations Burns & McDonnellmechanical-engineer-aerospace-industrial-multiple-locationsLos Angeles, CA$110,000–$220,000 / yearThe Mechanical Engineer will work on project teams to create world-class designs for new projects, alterations, and redevelopments on a variety of projects including power, process, corporate, healthcare, pipeline, airports, institutional, industrial, manufacturing, government, and military facilities. Modify and review production drawings for a variety of projects including but not limited to power plants, process facilities, industrial facilities, healthcare facilities, airports, educational institutions, commercial, and governmental and military facilities.
Senior Mechanical Engineer Percy TowersSenior Mechanical EngineerLos Angeles, CaliforniaFlight 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.
Mechanical Engineer - Structural Analysis & Hardware Development Approach VentureMechanical Engineer - Structural Analysis & Hardware DevelopmentLos Angeles, California$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.
Mechanical Engineer II SprintRay IncMechanical Engineer IILos Angeles, CATo All Recruitment Agencies: Without a written agreement signed by an officer of SprintRay: a) SprintRay does not accept resumes from recruiting agencies, headhunters, or any other party expecting payment in the event SprintRay speaks with or hires a candidate from such submitted resume; b) SprintRay is not responsible for any fees related to unsolicited resumes or related Terms of Service, and c) Unsolicited resumes received will be considered the property of SprintRay and will be processed accordingly. Collaborate with cross-functional engineering teams to transition research findings into engineering requirements and early product architectures.
Senior Mechanical Engineer OutpostSenior Mechanical EngineerLos Angeles, CA$210,000–$235,000 / yearUnlike traditional space vehicle roles where the structure simply needs to survive launch, you are designing for the round trip: launch vibration, the harsh vacuum of orbit, and the extreme thermal and mechanical loads of hypersonic re-entry and landing. One vehicle, many missions: responsive logistics and precision delivery for national security; commercial cargo moved with real cadence; R&D payloads flown, tested, and refined across repeatable cycles; and critical aid delivered where roads and runways can't reach.
Senior Mechanical Engineer Freeform Future CorpSenior Mechanical EngineerLos Angeles, CA$110,000–$200,000 / yearTo be successful in this role, you must have extensive technical breadth in mechanical engineering concepts as well as specific expertise in architecting, designing, and developing complex mechanical systems, advanced robotics systems, or state-of-the-art industrial automation systems. Freeform builds AI-native manufacturing systems that unify software, hardware, and physics to produce industrial-scale parts at the speed of human ideation.
Mechanical Engineer OutpostMechanical EngineerLos Angeles, CA$125,000–$160,000 / yearOne vehicle, many missions: responsive logistics and precision delivery for national security; commercial cargo moved with real cadence; R&D payloads flown, tested, and refined across repeatable cycles; and critical aid delivered where roads and runways can't reach. Design and develop mechanical systems for atmospheric recovery, including deployable structures, aerodynamic decelerators, recovery mechanisms, airframe interfaces, and precision landing hardware from requirements through release, build support, and qualification.
Supervising Mechanical Engineer -Healthcare Syska Hennessy Group IncSupervising Mechanical Engineer -HealthcareLos Angeles, CA$121,862–$182,793 / yearAs a Supervising Mechanical Engineer - Healthcare, you will be responsible for project management, including the conceptual approach to all trade-specific systems on multiple projects, and ensuring approach implementation through the management of. As a global leader in consulting, engineering, and commissioning services, we specialize in MEP, information and communication technology, architectural lighting, vertical transportation, and commissioning.
Supervising Mechanical Engineer -Critical Facilities Syska Hennessy GroupSupervising Mechanical Engineer -Critical FacilitiesLos Angeles, CA$121,862–$177,793 / yearAs a global leader in consulting, engineering, and commissioning services, we specialize in MEP, information and communication technology, architectural lighting, vertical transportation, and commissioning. The personal benefits program at Syska Hennessy Group includes: Robust, comprehensive medical, dental, vision, life insurance and supplemental benefit plans.
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.
Technical Project Engineer, Mechanical Tata Consultancy Services LtdTechnical Project Engineer, MechanicalNorth Hollywood, CA$130,000–$140,000 / yearNew Product Introduction /Sustaining Project engineering, fulfilling the requirements of Project Engineers, Design Engineers, Mechanical Engineers, and Stress engineers. Participating in business requirement discussions and providing key technical inputs.
Mechanical Engineer General MatterMechanical EngineerLos Angeles, California$80,000–$170,000 / yearYou will work closely with cross-functional teams, including electrical engineers, software engineers, chemical engineers, manufacturing engineers, nuclear engineers, materials scientists and physicists. Experience in a fast-paced engineering environment or a highly technical role requiring a resourceful, entrepreneurial approach to complete tasks within tight timeframes or budget constraints.
Mechanical Engineer Johnson Service GroupMechanical EngineerSun Valley, CAGenerate CAD drawings using AutoCAD and Solid works for mechanical, electrical, Subassemblies components for test fixtures and molds. Mechanical Engineer responsible and authority for controlling product configuration regarding product series, assemblies, production methods components.
NewMechanical Engineer II Rocket Lab USAMechanical Engineer IIPasadena, California$100,000–$126,000 / yearFull timeMechanical Engineer IIBased onsite at Rocket Lab Robotics in Pasadena, California, the Mechanical Engineer II will develop mechanical and electromechanical hardware for space robotics, precision mechanisms, tooling, fixtures, and ground support equipment. Design space mechanisms and motion systems including actuators, gimbals, gear trains, harmonic drives, bearings, motors, rotary sensors, springs, launch locks, release devices, and kinematic or pseudo-kinematic interfaces.
Senior Mechanical Engineer Site Infrastructure Freeform Future CorpSenior Mechanical Engineer Site InfrastructureLos Angeles, CA$100,000–$200,000 / yearYou will deep dive into the complex mechanical systems that power Skyfall, our proprietary printing platform, ranging from industrial fluid and cooling systems, high-pressure gases, and factory performance monitoring systems leveraging sensors and data acquisition. As a growing company, the salary range is intentionally wide as we determine the most appropriate package for each individual taking into consideration years of experience, educational background, and unique skills and abilities as demonstrated throughout the interview process.
Mechanical Engineer Site Infrastructure Freeform Future CorpMechanical Engineer Site InfrastructureLos Angeles, CA$90,000–$150,000 / yearYou will deep dive into the complex mechanical systems that power Skyfall, our proprietary printing platform, ranging from industrial fluid and cooling systems, high-pressure gases, and factory performance monitoring systems leveraging sensors and data acquisition. MECHANICAL ENGINEER (SITE INFRASTRUCTURE) Freeform builds AI-native manufacturing systems that unify software, hardware, and physics to produce industrial-scale parts at the speed of human ideation.
Senior Mechanical Engineer Rethink recruitSenior Mechanical EngineerLos Angeles, CaliforniaBattery and Energy Storage — battery pack mechanical architecture, cell and module packaging, thermal management, pressure tolerance and sealing, structural integration, and coordination with power electronics and BMS engineers. Structures and Integration — load-bearing and integration structures, nose cone and payload bay, internal component packaging, sensor and payload mounting, and interface management across subsystems.
Senior Mechanical Engineer Observable SpaceSenior Mechanical EngineerLos Angeles, CaliforniaObservable Space is backed by top-tier institutional investors including Lux, Upfront Ventures, RTX Ventures, Detroit Venture Partners and Embedded Ventures. You’ll work with a multidisciplinary team of optical, electrical, and software engineers to deliver observatory-grade systems for ground-based and potential future space-based deployment.
Senior Opto-Mechanical Engineer, Photonics Observable SpaceSenior Opto-Mechanical Engineer, PhotonicsLos Angeles, CaliforniaThis role is deeply hands-on: you will develop precision assemblies, work closely with optical and electrical engineers, support alignment and integration, and debug complex system-level issues at the intersection of optics, mechanics, and environment. Collaborate with Electrical Engineering and Software Engineering to test, validate, and iterate on designs, specifically supporting the mechanical integration of modem components and waveform management subsystems.
Mechanical Engineer Observable SpaceMechanical EngineerLos Angeles, CaliforniaObservable Space is backed by top-tier institutional investors including Lux, Upfront Ventures, RTX Ventures, Detroit Venture Partners and Embedded Ventures. You’ll work with a multidisciplinary team of optical, electrical, and software engineers to deliver observatory-grade systems for ground-based and potential future space-based deployment.
Mechanical Engineer II SprintRayMechanical Engineer IILos Angeles, California$95,000–$120,000Without a written agreement signed by an officer of SprintRay: a) SprintRay does not accept resumes from recruiting agencies, headhunters, or any other party expecting payment in the event SprintRay speaks with or hires a candidate from such submitted resume; b) SprintRay is not responsible for any fees related to unsolicited resumes or related Terms of Service, and c) Unsolicited resumes received will be considered the property of SprintRay and will be processed accordingly. Collaborate with cross-functional engineering teams to transition research findings into engineering requirements and early product architectures.
Mechanical Engineer II - III Syska Hennessy GroupMechanical Engineer II - IIILos Angeles, CA$75,667–$120,335 / yearAs a Mechanical Engineer II - III you will be responsible for creating basic designs under the direction of senior engineers and/or senior designers, performing equipment selections, and load/energy and pressure drop calculations for a variety of projects and project sizes. Additional responsibilities include: Represent Syska Hennessy Group and work in close contact with and effectively interact with the internal design team as well as external clients and consultants (including owners, builders, developers, program managers, architects, vendors, etc.).
NewMechanical Engineer (New Grad Summer 2027) FreeformMechanical Engineer (New Grad Summer 2027)Los Angeles, CA$95,000–$110,000 / yearIn 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. The ideal candidate thrives in ambiguity, can drive technically challenging projects with minimal oversight, and collaborates effectively across disciplines to deliver novel hardware solutions at scale.
Mechanical Engineer (New Grad December 2026) FreeformMechanical Engineer (New Grad December 2026)Los Angeles, CA$95,000–$110,000 / yearIn 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. The ideal candidate thrives in ambiguity, can drive technically challenging projects with minimal oversight, and collaborates effectively across disciplines to deliver novel hardware solutions at scale.
Mechanical Engineer FreeformMechanical EngineerLos Angeles, CA$100,000–$140,000 / yearIn addition to the significant stock option package, the estimated salary range for this role is $100,000-$140,000, dependent on the candidate's academic level (Bachelors, Masters, or PhD) and demonstrated out of classroom experience. As a Mechanical Engineer at Freeform, you will own projects cradle to grave as a responsible engineer, taking advanced manufacturing hardware from initial concept through design, fabrication, testing, and deployment.
Senior Opto-Mechanical Engineer High-Power Lasers Freeform Future CorpSenior Opto-Mechanical Engineer High-Power LasersLos Angeles, CA$120,000–$200,000 / yearYou will fully own the design of custom hardware and opto-mechanical-electrical devices, as well as implement novel laser and camera solutions to enable sophisticated closed loop control. As a growing company, the salary range is intentionally wide as we determine the most appropriate package for each individual taking into consideration years of experience, educational background, and unique skills and abilities as demonstrated throughout the interview process.