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32 senior mechanical engineer jobs found in El Segundo, CA

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High-Tech El Segundo, CA senior mechanical engineer
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3DEO
Oct 10, 2025
Full time
Senior Mechanical Engineer
$130,000 - $175,000 yearly
3DEO Torrance, CA
Job Title: Senior Mechanical Engineer — Industrial Machine Design & Integration Department: R&D Reports to: Director of Engineering Employment Type: Full-Time FLSA Status: Exempt The Company: 3DEO is a leader and innovator in sinter-based additive manufacturing (AM), delivering proprietary and differentiated AM solutions that drive breakthrough product performance. With some of the industry’s highest-volume capabilities in metal 3D printing, 3DEO combines cutting-edge manufacturing with multi-disciplinary engineering and product development expertise. Our patented and award-winning technology has revolutionized how customers approach design, enabling high-volume production with unmatched quality, precision, and cost efficiency. Holding roughly 20 patents, 3DEO is more than a manufacturer – we are a trusted partner in solving complex challenges and unlocking the full potential of AM. At 3DEO, we collaborate closely with customers in...
Ra
Mar 01, 2026
Full time
Senior Mechanical Engineer (Structures)
Radiant El Segundo, CA
Senior Mechanical Engineer (Structures) Radiant is seeking a highly motivated Senior Mechanical Engineer to design and develop critical structures within Kaleidos. You will solve unique challenges creating efficient and reliable structures that facilitate fission while surviving extreme temperature environments and meeting volumetric constraints. You will be responsible for the following: trade studies, material selection, detailed structural analysis, assembly, integration, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026. Responsibilities & Duties : Ownership of critical structures such as mass-efficient transportable shielding systems, container system, and high temperature graphite and metallic systems. Conduct trade studies and develop designs to meet program requirements. Perform detailed thermomechanical analysis (static strength, durability/fatigue) and dynamic analysis (vibration,...
Ra
Mar 01, 2026
Full time
Senior Mechanical Engineer (Sheet Metal Structures)
Radiant El Segundo, CA
Senior Mechanical Engineer (Sheet Metal Structures) Radiant is seeking a highly motivated Senior Mechanical Engineer to design and develop critical structures within Kaleidos. You will solve unique challenges creating efficient and reliable structures that facilitate fission while surviving extreme temperature environments and meeting volumetric constraints. You will be responsible for the following: trade studies, material selection, detailed structural analysis, assembly, integration, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026. Responsibilities & Duties : Ownership of critical structures such as mass-efficient transportable shielding systems, container system, and high temperature graphite and metallic systems. Conduct trade studies and develop designs to meet program requirements. Perform detailed thermomechanical analysis (static strength, durability/fatigue) and dynamic analysis...
NT
Aug 25, 2025
Full time
Senior Mechanical Engineer
$160,000 - $210,000 yearly
Neros Technologies El Segundo, CA
Who we are Neros is a defense technology company rebuilding America's drone industrial base. We design and manufacture high-performance unmanned systems that are tested in combat, iterated at startup speed, and built at massive scale. Our team culture is fast, hands-on, and obsessed with closing the gap between design and deployment. As drones transform the character of warfare, Neros is delivering the systems the West needs to compete on the modern battlefield and deter the adversaries of democracy. We're hiring engineers, operators, and builders who want to move fast, take on extreme ownership, and get capability into the hands of warfighters in months, not years. What you will be doing As a Senior Mechanical Engineer at Neros, you will own key components and subsystems within our products, starting from the conceptual design phase all the way through mass production. This is a dynamic and exciting role at a rapidly growing startup and presents an opportunity to be a...
Va
Mar 14, 2026
Full time
Senior Mechanical Engineer, Structures
$135,800 - $176,400 yearly
Vast Long Beach, CA
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. Using an incremental, hardware-rich and low-cost approach, Vast is rapidly developing its multi-module Haven Station. Haven Demo's 2025 success made Vast the only operational commercial space station company to fly and operate its own spacecraft. Next, Haven-1 is expected to become the world's first commercial space station when it launches, followed by additional Haven modules to enable permanent human presence by 2030. Our team is all-in, committed to executing our mission safely and on time. If you want to work with the most talented people on Earth furthering space exploration for humanity, come join us....
ME
Mar 22, 2026
Full time
Senior Mechanical Engineer
Motivo Engineering Compton, CA
About Motivo Motivo is a project-based company delivering excellence in mechanical and electrical system design and prototype builds. We have a history in successfully taking concepts through to actual finished solutions. Our work spans a wide range of market segments including mobility/automotive, aerospace, robotics, and clean energy, to name a few. Every team member will experience a wide variety of challenging projects, offering rich opportunities for professional growth. We are passionate about solving complex engineering challenges, striving for excellence within every unique project constraint, and believe in having fun while we do it! About the role Motivo is looking for a passionate Sr. Mechanical Engineer who is hands-on, has a strong technical background, and enjoys being part of a tight-knit engineering team. We work on cool, fast paced design projects and are responsible for the design, engineering, and build in-house. We also get to test the designs, which...
KT
Apr 11, 2026
Full time
Senior Mechanical Engineer
Keysight Technologies, Inc. Calabasas, CA
Overview Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world-class solutions in communications, 5G, automotive, energy, quantum, aerospace, defense, and semiconductor markets for customers in over 100 countries. Learn more about what we do. Our award-winning culture embraces a bold vision of where technology can take us and a passion for tackling challenging problems with industry-first solutions. We believe that when people feel a sense of belonging, they can be more creative, innovative, and thrive at all points in their careers. Responsibilities Available for working extended periods on-site in Calabasas, CA Develop state-of-the-art IP test products Design mechanical and thermal system solutions Simulate and design thermal solutions Validate designs, build and test prototypes Collaborate in an...
Be
Apr 24, 2026
Contractor
Senior Mechanical Design Engineer
$53.63 - $70.93 hourly
Belcan Carson, CA
Job Description Job Title: Senior Mechanical Design Engineer Location: Carson, CA Zip Code: 90746 Duration: 9 Months Pay Rate: $53.63 - $70.93/hr. Keyword's: #Carsonjobs; #DesignEngineerjobs; #MechanicalDesign; Start Date: Immediate Job Responsibilities: o Design sub-systems and components for various electric drive units including wound field motor, permanent magnet motor and motor mechanical structural components. o Generate & revise detailed 3D CAD models and 2D drawings of electro-mechanical designs at a component and motor sub-system level using CATIA V6. o Review designs & drawings for completeness and accuracy. o Develop detailed work instructions, assembly guidance, and related documentation. o Analyze and verification of preliminary and detailed designs with analytical calculations and numerical (FEA) as required. o Collaborate and management of suppliers with DFM, DFA, and open issues lists to ensure on time delivery of parts and quality conformance according...
GS
Mar 27, 2026
Full time
Senior Engineer (Mechanical or Aerospace)
GP Strategies Corporation Los Angeles, CA
Come make an impact in the Public Sector! Join our team to do meaningful work and support high-impact government missions. GP Strategies Government Solutions, Inc. Government Training Solutions | GP Strategies , a wholly owned subsidiary of GP Strategies Corporation, focuses on helping every public sector team unlock its full potential through people performance solutions. Our work directly supports mission critical government agencies, including: Air Force Army Department of Defense (DoD) Department of Health & Human Services (HHS) Department of Homeland Security NASA National Highway Institute (NHI) | Federal Highway Administration (FHWA) State & Local Governments Our Mission is meaningful and powerful: to deliver innovative people performance through off the shelf and custom learning, mission specialists, and technology solutions, building deep partnerships with customers to help them achieve measurable mission and company performance improvements. GP...
AA
Apr 17, 2026
Full time
Senior Mechanical Design Engineer
ATC Automation Simi Valley, CA
ATC Automation is seeking a hands-on and innovative Senior Mechanical Design Engineer to lead the mechanical development of custom automation machinery and tooling systems at our Simi Valley, CA location. Remote opportunities would be considered for highly qualified candidates with occasional travel required to the Simi Valley, CA location. Projects will vary in scale and complexity, ranging from rapid R&D efforts to fully integrated, high-throughput production equipment. You'll work directly with customers to define requirements and collaborate with a multidisciplinary engineering team to deliver robust, high-performance automation solutions. With a competitive salary ranging from $120,000 to $140,000 annually, this role not only rewards your skills but also encourages personal and professional growth. You can enjoy great benefits such as Medical, Dental, Vision, 401(k), Life Insurance, Health Savings Account, Flexible Spending Account, and Paid Time Off. If you are passionate...
Va
Jan 10, 2026
Full time
Mechanical Engineer, Structures
$80,000 - $110,000 yearly
Vast Long Beach, CA
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. We are building artificial gravity space stations, allowing long-term stays in space without the adverse effects of zero-gravity. Our initial crewed space habitat will be Haven-1, scheduled to be the world's first commercial space station when it launches into low-Earth orbit in 2026. It is part of our stepping stone approach to continuous human presence in LEO. Our team is all-in, committed to executing our mission safely and on time. If you want to work with the most talented people on Earth furthering space exploration for humanity, come join us. Vast is looking for a Mechanical Engineer reporting to Manager, Structures Design, to support the development of the systems that will be required for the design and build of artificial-gravity human-rated space stations. TheStructures and Dynamicsteam covers a wide range of components and responsibilities: from the primary...
3DEO
Oct 10, 2025
Full time
Senior Software Engineer
$140,000 - $180,000 yearly
3DEO Torrance, CA
Job Title : Senior Software Engineer – Slicer & Manufacturing Platform Development Department: R&D Reports to: Chief Operating Officer Employment Type: Full-Time FLSA Status: Exempt The Company: 3DEO is a leader and innovator in sinter-based additive manufacturing (AM), delivering proprietary and differentiated AM solutions that drive breakthrough product performance. With some of the industry’s highest-volume capabilities in metal 3D printing, 3DEO combines cutting-edge manufacturing with multi-disciplinary engineering and product development expertise. Our patented and award-winning technology has revolutionized how customers approach design, enabling high-volume production with unmatched quality, precision, and cost efficiency. Holding roughly 20 patents, 3DEO is more than a manufacturer – we are a trusted partner in solving complex challenges and unlocking the full potential of AM. At 3DEO, we collaborate closely with customers in...
Ra
Mar 01, 2026
Full time
Senior Structures Engineer
Radiant El Segundo, CA
Senior Structures Engineer Radiant is seeking a highly motivated Senior Structures Engineer to design and develop critical structures within Kaleidos. You will solve unique challenges creating efficient and reliable structures that facilitate fission while surviving extreme temperature environments and meeting volumetric constraints. You will be responsible for the following: trade studies, material selection, detailed structural analysis, assembly, integration, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026. Responsibilities & Duties : Ownership of critical structures such as mass-efficient transportable shielding systems, container system, and high temperature graphite and metallic systems. Conduct trade studies and develop designs to meet program requirements. Perform detailed thermomechanical analysis (static strength, durability/fatigue) and dynamic analysis (vibration, shock) to...
Ra
Mar 01, 2026
Full time
Senior Mechanisms Engineer
Radiant El Segundo, CA
Senior Mechanisms Engineer Radiant is seeking a highly motivated Senior Mechanisms Engineer to design and develop critical mechanisms within Kaleidos. You will solve unique challenges creating efficient and reliable mechanisms that control reactivity or actuate critical safety features. You will be responsible for the following: trade studies, material selection, detailed structural analysis, assembly, integration, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026. Responsibilities & Duties : Ownership of critical mechanisms such as the control blade actuator or air jacket valves. Conduct trade studies and develop designs to meet program requirements. 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. Develop and execute...
Ra
Mar 01, 2026
Full time
Senior Structural Engineer
Radiant El Segundo, CA
Senior Structural Engineer Radiant is seeking a highly motivated Senior Structural Engineer to design and develop critical structures within Kaleidos. You will solve unique challenges creating efficient and reliable structures that facilitate fission while surviving extreme temperature environments and meeting volumetric constraints. You will be responsible for the following: trade studies, material selection, detailed structural analysis, assembly, integration, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026. Responsibilities & Duties : Ownership of critical structures such as mass-efficient transportable shielding systems, container system, and high temperature graphite and metallic systems. Conduct trade studies and develop designs to meet program requirements. Perform detailed thermomechanical analysis (static strength, durability/fatigue) and dynamic analysis (vibration, shock) to...
Di
Sep 26, 2025
Full time
Manager, Manufacturing Engineering
$142,900 - $196,500 yearly
Divergent Torrance, CA
Divergent is a technology company that has architected, invented, built, and commercialized an end-to-end factory system called the Divergent Adaptive Production System (DAPS™) that comprehensively uses machine learning to optimally engineer, additively manufacture, and flexibly assemble complex integrated vehicle structures and subsystems. Products created using DAPS are superior in performance, lower in cost, rapidly customizable to meet mission and customer-specific requirements, faster to market, and scalable on demand to high volume production. Divergent is a qualified Tier 1 supplier to global automotive OEMs, and Divergent is now expanding to support mission critical needs in the Aerospace and Defense sector. Join us to be a part of this transformative journey, where your impact will shape the future of technology and production. Purpose Guide the integration of cutting-edge manufacturing technologies into production, ensuring reliability, cost efficiency, and quality....
Va
Jan 30, 2026
Full time
Solar Arrays Engineer
$110,000 - $140,000 yearly
Vast Long Beach, CA
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. Using an incremental, hardware-rich and low-cost approach, Vast is rapidly developing its multi-module Haven Station. Haven Demo's 2025 success made Vast the only operational commercial space station company to fly and operate its own spacecraft. Next, Haven-1 is expected to become the world's first commercial space station when it launches, followed by additional Haven modules to enable permanent human presence by 2030. Our team is all-in, committed to executing our mission safely and on time. If you want to work with the most talented people on Earth furthering space exploration for humanity, come join us....
Va
Nov 28, 2025
Full time
Senior Studio Engineer
Vast Long Beach, CA
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. We are building artificial gravity space stations, allowing long-term stays in space without the adverse effects of zero-gravity. Our initial crewed space habitat will be Haven-1, scheduled to be the world's first commercial space station when it launches into low-Earth orbit in 2026. It is part of our stepping stone approach to continuous human presence in LEO. Our team is all-in, committed to executing our mission safely and on time. If you want to work with the most talented people on Earth furthering space exploration for humanity, come join us. Vast is looking for a Senior Studio Engineer , reporting to the Manager of Industrial Design, to support the development of the systems required for the design and build of artificial-gravity human-rated space stations. As a Studio Engineer on the Industrial Design team, you will have a unique opportunity to build out the...
GS
Mar 15, 2026
Full time
Entry-Level Engineer (Mechanical, Aerospace or Physics)
GP Strategies Corporation Los Angeles, CA
Come make an impact in the Public Sector! Join our team to do meaningful work and support high-impact government missions. GP Strategies Government Solutions, Inc. Government Training Solutions | GP Strategies , a wholly owned subsidiary of GP Strategies Corporation, focuses on helping every public sector team unlock its full potential through people performance solutions. Our work directly supports mission critical government agencies, including: Air Force Army Department of Defense (DoD) Department of Health & Human Services (HHS) Department of Homeland Security NASA National Highway Institute (NHI) | Federal Highway Administration (FHWA) State & Local Governments Our Mission is meaningful and powerful: to deliver innovative people performance through off the shelf and custom learning, mission specialists, and technology solutions, building deep partnerships with customers to help them achieve measurable mission and company performance improvements. GP...
SI
Feb 22, 2026
Full time
Senior Design Engineer - Construction - HVAC/MEP
Southland Industries Garden Grove, CA
Job Description Position Summary Watch your engineering designs come to life! As a Senior Design Engineer at Southland Industries, you'll experience the excitement of working on design-build and design-assist projects in healthcare, education, biotech, mission critical, commercial and entertainment markets. You'll work hand in hand with our model coordinators, estimators, and trade staff through all aspects of a project to create a design that is practical, efficient and cost effective. You'll also have access to internal teams using the most innovative practices in virtual construction design (VDC) and computational fluid dynamics, along with just-in-time feedback from the field. Position Details Serves as design professional at project team design meetings Prepares complex preliminary redline design layouts for estimating Performs more complex calculations for a project, such as heating/cooling loads, equipment selection and sizing, friction loss calculations, etc...
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