247 senior mechanical engineer jobs found in Torrance, 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...

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 Divergent's Adaptive Production System (DAPS) combines software and purpose-built hardware to produce advanced structures for automotive,...

Senior Mechanical Engineer At ThinKom, we don't just build antennas - we design high-performance, next-generation mechanical systems that connect the world across air, land, sea, and space. From Inflight Connectivity (IFC) to High-Power Microwave (HPM) systems to Defense SATCOM, our technology operates in some of the world's most demanding environments. We're looking for a Senior Mechanical Engineer who loves hands-on engineering, thrives on solving hard hardware problems, and wants to see their designs go from napkin sketch to physical deployment. If you're ready to lead critical programs, mentor rising talent, and push the limits of advanced satellite communications, this is your platform. Position Summary As a Senior Mechanical Engineer, you will play a key role in the design, analysis, development, and manufacturing of advanced stationary and mobile antenna systems and related mechanical assemblies. You'll collaborate with cross-functional engineering teams throughout the...

About Radiant Radiant is an El Segundo, CA-based startup building the world's first mass-produced, portable nuclear microreactors. The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. 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. 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. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role Radiant is seeking a highly motivated Senior Mechanical Engineer to design and develop critical structures within...

About Radiant Radiant is an El Segundo, CA-based startup building the world's first mass-produced, portable nuclear microreactors. The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. 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. 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. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role Radiant is seeking a highly motivated Senior Mechanical Engineer, Mechanisms to design and develop critical...

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....

SmithGroup is an integrated design firm with a reputation for cultivating a top-ranked culture while pioneering award-winning innovative design solutions. We blend research, data and technology with ingenuity and a creative spirit to deliver resilient, inclusive spaces that solve our clients' greatest challenges. Our teams create exceptional design solutions for healthcare, science and technology, workplace, mixed use, higher education, cultural, waterfront, parks and open spaces, and urban environments. We are looking for passionate problem solvers who want to elevate design, push boundaries and create a more resilient future. The Los Angeles office of SmithGroup is looking for a Senior Mechanical Engineer to join our team. Working with us, you will: Serve as the engineering leader through all stages of a project of any size and play a larger role in the marketing of the studio and management of the discipline. Actively promote and advocate for increased energy efficiency,...

ABOUT ROCKET LAB Rocket Lab is the end-to-end space company building rockets, spacecraft, and critical subsystems that keep the world connected, protected, expand humanity's reach to the Moon, Mars, and beyond. We move fast, build real hardware for meaningful missions, and make the impossible routine. Come shape the future with us. SPACE SYSTEMS At Rocket Lab, we're not just launching rockets - we're building the future of space. 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. Our Space Systems team has enabled more than 1,700 missions, ranging from interplanetary exploration, in-space manufacturing to national security and defense initiatives. The team has built spacecraft, payloads, and components for missions to the Moon and Mars, working with partners including...

Embark on a transformative career with RAVE Aerospace, where we are forging an unparalleled in-flight entertainment ecosystem. As an innovative company we design and engineer world-class In-Flight Entertainment and Connectivity (IFEC) solutions. Our products are constantly evolving, solving complex media distribution, playback, and networking problems in a secure, demanding on-wing environment. RAVE Aerospace's IFEC products are utilized by many of the world's premier air carriers. Step aboard and help us by creating the best in-flight experiences for today and beyond! Job Summary The Senior Mechanical Engineer has responsibility for mechanical and electromechanical design and systems integration of company products. This individual has a significant impact on product innovation, cost, schedule, and feature set. This individual will retain technical ownership of mechanical designs and is responsible for the system assembly as a whole throughout the design, development,...

About Us Fluxergy is a rapidly growing in vitro diagnostics company innovating on the cutting-edge of laboratory testing. We're developing the first and only multi-modal point-of-care platform that enables molecular, clinical chemistry, immunoassay, and hematology testing on the same system. Our platform spans many markets including the clinical, veterinary, and food safety industries. We are seeking self-motivated problem solvers who are excited to help decentralize traditional laboratory infrastructure. At the core of our company's identity is a strong foundation in engineering. We take great pride in our commitment to critical thinking and pragmatic problem-solving through a modular and systemic perspective. We hold the conviction that transparent communication, coupled with the flexibility to adjust to evolving scenarios and the willingness to venture beyond familiar territories, is crucial to both our success and yours. Our product: https://vimeo.com/176673475 About...

Elastium is an advanced manufacturing startup company transforming the legacy footwear industry toward rapid, fully automated, and localized production. Our manufacturing platform combines proprietary 3D printing technology, software, and materials science to make shoe production as effortless as pushing a button. We're building the most frictionless way of turning bits into useful atoms, sending ripples of singularity across the industry, and bringing tens of billions of GDP back to America. You'll be playing the key role in rolling out the mass production of Elastium production cells, operating at unprecedented scale for the AM industry. Specifically, you will: Execute the mechanical design of the most advanced FGF/FDM 3D printers on Earth, from initial concept through testing and deployment. Eliminate expensive, complex assemblies with radically simple designs that minimize part count, are trivial to build, and scale fast. Develop novel tooling solutions for fabrication and...

**Applicants must be U.S. Citizens or U.S. Permanent Residents (Green Card holders) to meet customer and regulatory requirements** Who We Are We are pioneering modular motion technologies to power the next generation of innovation for Industrial, Aerospace and Defense. If you're excited about disrupting legacy industries, and passionate about motor control technology, let's chat! We are at the forefront of innovation, crafting exclusive motion control components that propel the industrial, aerospace, and defense sectors into the future. A couple other things: We are open to relocating you We have great benefits We are well funded, and already generating revenue We are located in beautiful Torrance, CA and just moved into a new large hangar facility What you'll do: We are seeking a versatile, high-impact Engineer to lead the development of mission-critical hardware. This is a "full-lifecycle" role where you will own everything from the initial conversion of ambiguous...

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...

sr. Mechanical Engineer (PE) (Calabasas, CA) Roshanian and Associates (RA) is looking for an energetic, self-motivated, and innovative individual for a Lead Mechanical Engineer position that can demonstrate the successful delivery of detailed mechanical design packages on medium to large scale capital projects. This person will be responsible for coordinating with internal and external architects and engineers, as well as clients, construction managers, subcontractors, commissioning agents and vendors. Project types will be educational, commercial, multi-residential and hospitality, including both existing building renovations/retrofits and new construction. In addition, the qualified candidate should have proven ability to handle multiple complex tasks and have business and personnel management skills including the ability to establish and manage priorities and assist to market services to clients. Job Responsibilities: Developing HVAC, plumbing, and fire protection systems...

About Starpath Starpath Robotics is developing a full-stack solution for commercial scale rocket propellant production on the Moon and Mars. We are building one of the key enabling technologies that will make humans a multi-planet species. If high ownership, fast pace, working with hardware, and solving challenging technical problems sound like a dream come true, come join the team! Senior/Principal Mechanical Engineer In this role, you will be responsible for the development of critical mechanical systems on Starpath's Rover platform. Depending on your prior work experience, you may work on a variety of systems, such as: (1) low-cost, high-reliability electromechanical actuators, (2) various structures and passive mechanisms, or (3) thermal control systems and autonomy hardware integration. You will own these systems from developing design requirements through to flight. Responsibilities: Own architectures, systems, subsystems, and components from requirements to...

Company Description: Critical Energy is an innovative, early-stage, venture-backed cleantech company on a mission to accelerate the global energy transition through abundant, low-cost clean energy. Founded by an ex-SpaceX engineer, Critical Energy designs and manufactures factory-built, modular power plants. These rapidly deployable systems convert heat into electricity using a closed-loop thermodynamic cycle and can be installed in just weeks. Critical Energy's technology delivers high-efficiency, 24/7 power for geothermal applications and waste heat recovery (including from data center gas turbines), making clean energy practical and cost-effective for demanding sectors like AI hyperscalers and data centers. Backed by top climate and technology investors, Critical Energy is scaling rapidly. Our Mission: To build an abundant, low-cost, 100% clean energy future through groundbreaking geothermal innovation. We are a team of passionate engineers, designers, and visionaries...

ABOUT ROCKET LAB Rocket Lab is the end-to-end space company building rockets, spacecraft, and critical subsystems that keep the world connected, protected, expand humanity's reach to the Moon, Mars, and beyond. We move fast, build real hardware for meaningful missions, and make the impossible routine. Come shape the future with us. SUPPLY CHAIN Rocket Lab's Supply Chain team is responsible for the flow of all materials, products, and components through the business. With many of our own products functioning as critical components to our own and our customers' missions, the Supply Chain team has a direct impact on the success of our rocket and satellite programs. They set up the assembly kits that enables our technicians to put together our Electron rockets, manage inventory, look after shipping and receiving, manage direct and indirect procurement, and inspect and ensure that all of our materials and products are compliant and up to standard. They are the chain that links...

The Role LettrLabs is reinventing direct mail. With our own in-house handwriting robotics, we're challenging traditional direct mail manufacturing from the ground up. We're looking for a Senior Mechanical Design Engineer to own the mechanical design and development of complex electromechanical systems from concept through production - and to be instrumental in building our next-generation production automation platform. You'll take projects end-to-end: translating requirements into robust, manufacturable designs, validating them through analysis and prototyping, and seeing them through to commissioning. You'll work closely with cross-functional partners in electrical, controls, manufacturing, and quality, as well as external vendors and suppliers. This is a hands-on, high-ownership position for an engineer who is equally comfortable at a whiteboard, in CAD, and on the shop floor. Why Join Us Design the machines that make our product possible - you're not supporting a...

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 may be considered for highly qualified candidates, with occasional travel required to the Simi Valley facility. Projects will range in size and complexity, from rapid R&D initiatives to fully integrated, high-speed production systems. In this role, you will collaborate directly with customers to define project requirements and work alongside a multidisciplinary engineering team to deliver reliable, high-performance automation solutions. This position offers a competitive annual salary range of $120,000 to $140,000, along with opportunities for continued professional development and career advancement. Benefits include Medical, Dental, Vision, 401(k), Life Insurance, Health Savings Account, Flexible Spending Account, and Paid Time Off. If you are driven by...

TRL11 is seeking a hands-on Senior Mechanical Engineer to own the mechanical development of space avionics and electro-optical imaging systems from initial requirements through production and product sustainment. This role will have broad responsibility across the full product lifecycle, including requirements definition and verification, mechanical architecture, detailed design, drawing release, supplier selection, manufacturing engineering, environmental testing, and ongoing product support. The Senior Mechanical Engineer will work closely with cross-functional teams and customers to deliver reliable hardware for demanding space environments. The ideal candidate is a strong individual contributor who is comfortable making technical decisions, working directly with vendors, technicians, and customers, and remaining accountable for a product after the initial design is released. Key Responsibilities Own the mechanical development and sustainment of space avionics and...