24 engineer iii or iv jobs found

About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we constantly challenge what's possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations. Role Summary Join Rivian's Vehicle Hardware Engineering - Chassis - Product Development team as a key contributor in bringing our electric adventure vehicles to life. As a Senior Mechanical Design & Release Engineer, you'll be instrumental in the product development of chassis steering hardware components - from steering columns, intermediate shafts, and electric power-assisted steering gears to next-generation mechatronic systems including...

About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we constantly challenge what's possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations. Role Summary Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious courageous souls we seek to attract. We constantly challenge what is possible, never simply accepting what has always been done. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations. If you are aligned with this mission, we want...

About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we constantly challenge what's possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations. Role Summary This is an opportunity to have great impact and shape the physical design of Rivian's electric vehicle systems. We're looking for a highly motivated, multi-disciplined mechanical design & release engineer to help us design and develop Exterior components on current and future Rivian Models. Responsibilities • Design, Develop, and release Exterior Components including, but not limited to Front and Rear Fascia Assemblies, Front End Modules...

About the job Staff Dimensional Metrology Engineer About Castelion Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We design, build, and test next generation weapon systems to give America and its Allies a definitive edge in defense capabilities. Staff Dimensional Metrology Engineer The Dimensional Metrology Engineer will serve as the hands-on technical authority for applied dimensional measurements across Castelion. You will collaborate with design, manufacturing, test, and quality teams to integrate metrology early in development for better risk management, process characterization, and verification. You will drive metrology-as-a-service across the company, develop novel measurement solutions, mentor teams on cutting-edge dimensional measurement technology, and establish scalable metrology...

About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we constantly challenge what's possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations. Role Summary As the Lead Chassis Engineer, you will hold cradle-to-grave accountability for vehicle programs, driving the transition from initial design through launch and into ongoing production. You will resolve complex, cross-functional chassis issues and synchronize design activities to ensure the entire team is aligned on the most optimal engineering solutions. As a strategic member of the Chassis Leadership team, you will conduct rigorous technical...

About the job PCB Layout Engineer, Senior About Castelion Castelion is redefining defense development through rapid iteration, aggressive testing, and modern commercial manufacturing at scale. We design, build, and test next-generation long-range strike weapon systems to give the United States and its Allies a decisive advantage and deter future conflicts. Position Overview As a PCB Layout Engineer, you will independently own the layout and release of complex avionics printed circuit boards for hypersonic missile systems. You will partner closely with electrical, mechanical, systems, and manufacturing engineers to deliver flight-worthy hardware on aggressive schedules. This role requires strong technical judgment, the ability to drive layout decisions across analog, digital, RF, and power domains, and comfort leading fabrication and assembly partners through DFM and production readiness. You will be expected to execute with minimal oversight while contributing to...

About the job Senior Manufacturing Engineer, Radar Why Castelion, Why Now Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts. This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions, and have immediate, real-world impact. Senior Manufacturing Engineer - Avionics Electro-Mechanical Assembly We are seeking a Senior Manufacturing Engineer with deep expertise in the high-reliability assembly and integration of avionics and electromechanical systems for hypersonic missile vehicles. This role focuses on developing, optimizing, and scaling manufacturing processes for complex avionics hardware-including printed circuit board assemblies (PCBA), wire harnesses,...

Vast is developing next-generation space stations and space infrastructure using an incremental, hardware-rich, and low-cost approach. Vast is rapidly developing its multi-module Haven Station 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. 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 in 2027, followed by additional Haven modules. Additionally, the company recently announced Vast Satellite , a high-power satellite product line leveraging its space station components and the heritage of Haven Demo. Headquartered in Long Beach, California , and with more than 1,000 employees and over a billion dollars in private capital, Vast has built...

Rock West Composites is seeking a Product Development Project Engineer to lead program execution and customer success across a business segment. Who We Are: Rock West Composites designs and manufactures advanced composite solutions that power some of the most demanding aerospace, defense, space, and commercial applications. From concept through production, we help our customers turn complex ideas into high performance products. As an employee-owned company, we believe our people are our greatest competitive advantage. If you're passionate about innovation, collaboration, and building products that matter, you'll feel right at home here. Position Summary: The Senior Project Engineer leads complex product development projects from concept through production transition, applying expertise in composite materials, processes, fabrication, and testing. This role manages technical execution, cost, schedule, and risk while partnering with customers and cross-functional teams to develop...

About Us At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We're fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we're building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space. The Antares team hails from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, Rigetti Computing, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Idaho, Oak Ridge, Los Alamos, and Savannah River. Antares has raised over $600M in venture capital from top-tier investors and has hundreds of million-dollars on contract with the military services, NASA, and the Department of Energy. About the Role As a Level I or Level II Mechanical Design Engineer in the Mission Engineering team, you...

About Us At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We're fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we're building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space. The Antares team hails from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, Rigetti Computing, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Idaho, Oak Ridge, Los Alamos, and Savannah River. Antares has raised over $600M in venture capital from top-tier investors and has hundreds of million-dollars on contract with the military services, NASA, and the Department of Energy. About the Role As a Mechanical Design Engineer in the Mission Engineering team, you will primarily own...

About Us At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We're fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we're building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space. The Antares team hails from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, Rigetti Computing, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Idaho, Oak Ridge, Los Alamos, and Savannah River. Antares has raised over $600M in venture capital from top-tier investors and has hundreds of million-dollars on contract with the military services, NASA, and the Department of Energy. About the Team As a Senior Manufacturing Engineer - Fabrication at Antares, you will own the...

Mechanical Engineer (Structures) - Space Solar Position Details Location: Los Angeles (Hawthorne), CA Employment Type: Full-time Department: Structures Travel: Occasional About Starpath Starpath develops and manufactures the technologies that will enable humans to live on the Moon and Mars. Today, we are building robotic systems that locally produce the essential commodities a lunar civilization will require at extreme scale: water, power, and oxygen. Our ultimate goal is to build and operate a self-sustaining city on Mars. The Role The Structures team designs and builds the mechanical backbone of Starpath's hardware - the primary and secondary structures, mechanisms, and interfaces that must survive the punishing loads of launch and the extreme environments of space and planetary surfaces. From the systems that produce water, power, and oxygen on the Moon to the equipment bound for Mars, every subsystem depends on structures that are light, strong, and manufacturable at...

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...

Rock West Composites is seeking a Design Engineer to design and develop advanced composite structures and products for aerospace, defense, space, and commercial applications. This role partners with Program Management, Manufacturing Engineering, Production, and customers to develop innovative, manufacturable solutions from concept through production while ensuring designs meet performance, quality, and cost objectives. This is an excellent opportunity for an engineer who enjoys solving complex technical challenges, collaborating across disciplines, and developing high performance products from concept through production. Position Summary The Design Engineer is responsible for the design and development of composite components, tooling, molds, and fixtures that support customer and internal manufacturing requirements. This role creates 3D models, engineering drawings, and technical documentation while collaborating with cross-functional teams to ensure products are...

Rock West Composites is seeking a Manufacturing Engineer to support the development and production of high-performance composite structures for DoD, space, and commercial applications. This role is responsible for defining and executing manufacturing processes from prototype through production, ensuring products meet requirements for quality, cost, and performance. You'll work closely with Engineering, Program Management, and Production teams to solve complex technical challenges and drive continuous improvement. This is a hands-on role in a small batch, R&D-focused environment, ideal for someone who thrives in fast-paced settings and enjoys taking ownership of projects from start to finish. What You'll Own Manufacturing process development from concept through production Creation and control of manufacturing documentation (MBOMs, work instructions, travelers, process specs) Product quality, manufacturability, and process efficiency Resolution of technical issues on the...

About the role Muon seeks a Staff Mechanisms Design Engineer to own the design, qualification, and sustainment of the deployable and actuated mechanical systems that power our spacecraft: solar array deployables, solar array drive assemblies (SADA), hold-down and release mechanisms (HDRMs), hinges, dampers, and latches. These are mission-critical, single-point-failure systems, and this role owns them from requirements definition through qualification and on-orbit operation. As a foundational member of our new Solar & Deployables hardware group, the ideal candidate goes deep on requirements definition, mechanism design, analysis, prototyping, qualification, and transfer to production while collaborating across disciplines to deliver high-reliability solutions. This position is hybrid and requires working on-site in our San Jose, CA office three days per week. Responsibilities Serve as the technical owner for deployable and actuated mechanisms - SADA, HDRMs, hinges,...

CIVIL WATER Resources Engineer III-IV (San Luis Obispo) At Wallace Group our people are our most valuable resource. We are committed to offering challenging work, competitive compensation and benefits, as well as opportunities for professional advancement and personal development. Position Summary: We are looking for a talented Civil Water Resources Engineer with a strong background in water resources planning and design. The ideal candidate has a minimum of seven years of progressively responsible experience delivering technical solutions for water supply, water quality, water/ wastewater/ recycled water master planning, water and sewer infrastructure modeling, utility design, and water/wastewater treatment design. This role supports both project delivery and technical analysis, with opportunities to grow into project management and client-facing responsibilities. This is an excellent role for someone who has mastered foundational design skills and is ready to take on...

About Us At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We're fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we're building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space. The Antares team hails from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, Rigetti Computing, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Idaho, Oak Ridge, Los Alamos, and Savannah River. Antares has raised over $600M in venture capital from top-tier investors and has hundreds of million-dollars on contract with the military services, NASA, and the Department of Energy. Roles & Responsibilities Own the design, development, fabrication, qualification, and...

About Us At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We're fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we're building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space. The Antares team hails from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, Rigetti Computing, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Idaho, Oak Ridge, Los Alamos, and Savannah River. Antares has raised over $600M in venture capital from top-tier investors and has hundreds of million-dollars on contract with the military services, NASA, and the Department of Energy. Roles & Responsibilities Own the design, development, fabrication, qualification, and...