554 mechanisms engineer jobs found

Cowboy Space Corp. is building the infrastructure to power and connect the orbital economy. Our satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities-from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. By rethinking how energy and data are generated and distributed in space, we're unlocking entirely new ways to operate both in orbit and on Earth. Founded in 2024 by Baiju Bhatt (co-founder of Robinhood), Cowboy Space Corp. is backed by leading investors and built by a team from top aerospace and defense organizations. We're moving quickly to solve complex technical challenges and build a new category of space infrastructure. About the Role : As a Mechanisms Engineer, you will own a critical vehicle mechanism subsystem from concept through flight. Depending on your background and team priorities, your...

Cowboy Space Corp. is building the infrastructure to power and connect the orbital economy. Our satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities-from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. By rethinking how energy and data are generated and distributed in space, we're unlocking entirely new ways to operate both in orbit and on Earth. Founded in 2024 by Baiju Bhatt (co-founder of Robinhood), Cowboy Space Corp. is backed by leading investors and built by a team from top aerospace and defense organizations. We're moving quickly to solve complex technical challenges and build a new category of space infrastructure. About the Role : As a Mechanisms Engineer, you will own a critical vehicle mechanism subsystem from concept through flight. Depending on your background and team priorities, your...

Cowboy Space Corp. is building the infrastructure to power and connect the orbital economy. Our satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities-from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. By rethinking how energy and data are generated and distributed in space, we're unlocking entirely new ways to operate both in orbit and on Earth. Founded in 2024 by Baiju Bhatt (co-founder of Robinhood), Cowboy Space Corp. is backed by leading investors and built by a team from top aerospace and defense organizations. We're moving quickly to solve complex technical challenges and build a new category of space infrastructure. About the Role : As a Mechanisms Engineer, you will own a critical vehicle mechanism subsystem from concept through flight. Depending on your background and team priorities, your...

Cowboy Space Corp. is building the infrastructure to power and connect the orbital economy. Our satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities-from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. By rethinking how energy and data are generated and distributed in space, we're unlocking entirely new ways to operate both in orbit and on Earth. Founded in 2024 by Baiju Bhatt (co-founder of Robinhood), Cowboy Space Corp. is backed by leading investors and built by a team from top aerospace and defense organizations. We're moving quickly to solve complex technical challenges and build a new category of space infrastructure. About the Role : As a Mechanisms Engineer, you will own a critical vehicle mechanism subsystem from concept through flight. Depending on your background and team priorities, your...

Natilus is building the next generation of aviation through the development of blended-wing-body aircraft, delivering a step-change in overall efficiency. Our growing family of aircraft is designed to make air travel more sustainable while fundamentally improving the economics of commercial flight and the operational effectiveness of defense logistics. By combining advanced aerodynamics with innovative design, Natilus aircraft achieve exceptional fuel efficiency, increased payload capacity, and seamless compatibility with existing airport infrastructure. With hundreds of aircraft valued in the billions of dollars already on order, we are redefining how aircraft are designed, built, and operated, representing a meaningful evolution in modern aviation Work Summary: Natilus is seeking a Mechanisms Engineer to join our team in San Diego, CA. In this role you will design and integrate aircraft mechanisms and actuation systems, supporting kinematic analysis, structural interfaces,...

We are seeking a highly skilled Senior Kinematics Engineer to lead the design, analysis, and validation of mechanical systems involving motion. This role focuses on interior automotive mechanisms such as cupholder doors, sliding armrests, glovebox systems, console lids, and storage solutions. The ideal candidate brings deep expertise in kinematics and compliance and excels at using simulation tools to optimize motion, durability, and overall product performance. Key Responsibilities Mechanism Design and Optimization Design and develop moving components including push-push systems, sliding mechanisms, hinges, gear trains, springs, and dampers. Ensure designs meet packaging, durability, quality, and performance requirements. Multibody Simulation Create and analyze dynamic models using tools such as Adams, MATLAB Simulink, or similar software to evaluate kinematic behavior and system performance. Virtual and Physical Validation Perform simulation and physical testing...

About the job Senior Mechanisms Engineer 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 Mechanisms Engineer We are seeking a Senior Mechanisms Engineer to design and deliver high-performance mechanical actuation systems for Castelion's long-range hypersonic strike vehicles. This role is critical to enabling precise and reliable control surface motion and deployment mechanisms under extreme flight conditions. You will work hands-on with multidisciplinary engineering teams to design, analyze, build, and validate mechanisms such as...

About the job Senior Mechanisms Engineer 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 Mechanisms Engineer We are seeking a Senior Mechanisms Engineer to design and deliver high-performance mechanical actuation systems for Castelion's long-range hypersonic strike vehicles. This role is critical to enabling precise and reliable control surface motion and deployment mechanisms under extreme flight conditions. You will work hands-on with multidisciplinary engineering teams to design, analyze, build, and validate mechanisms such as...

Hermeus is a high-speed aircraft manufacturer focused on the rapid design, build, and test of high-Mach and hypersonic aircraft for the national interest. Working directly with the Department of Defense, Hermeus delivers capabilities that will ensure that our nation, and our allies, maintain an asymmetric advantage over any and all potential adversaries. Hermeus is seeking a Senior Mechanisms Engineer to join our Vehicle & Mechanisms Team. In this senior-level role, you will be responsible for designing and developing complex mechanical systems and mechanisms that are critical to the success of our high-speed aircraft projects. Key Responsibilities: Mechanism Design: Lead the design and development of mechanical systems, mechanisms, and components for aerospace applications. Collaborate with cross-functional teams to define project requirements and objectives. Analysis and Simulation: Conduct detailed mechanical analysis, including stress analysis, fatigue, and...

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...

Come join us in shaping the future! Get in on the ground floor as an early member of our Mechanical team as a Test Engineer - Structures and Mechanisms developing a revolutionary satellite communications system. Connect the vision to the hardware, build it, test it and fly it. AscendArc is a seed stage startup founded to revolutionize the satellite communications industry. We are looking for doers who want to work in a ground-breaking and fast-paced environment. Our success will depend on your energy, skill, and creativity. Responsibilities Design, build, and integrate test fixtures, tooling, and support hardware to effectively test spacecraft structures and mechanisms. Assist responsible engineers in design and/or concepting of functional, environmental, and qualification tests, including thermal, vibration, shock, deployment, and pressure testing. Support test readiness reviews, drive testing schedules, and ensure safe test operations Develop responsive testing...

Application close date: Applications will be accepted on an ongoing basis until the requisition is closed. At Blue Origin, we envision millions of people living and working in space for the benefit of Earth. We're working to develop reusable, safe, and low-cost space vehicles and systems within a culture of safety, collaboration, and inclusion. Join our team of problem solvers as we add new chapters to the history of spaceflight! This role is part of the New Shepard program. New Shepard is a reusable suborbital rocket system designed to take astronauts and research payloads past the Kármán line - the internationally recognized boundary of space. Through operational reusability, New Shepard supports our mission of lowering the cost of access to space. As part of a talented and hardworking team of engineers, you will work on designing and developing key mechanical ground systems for Blue Origin's launch site at LC-36 (Cape Canaveral, FL). You'll have the unique opportunity to be...

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 a Lead Closures Engineer, you will be the driving force behind the sophisticated mechanisms and structures that define the touchpoints of a world-class vehicle. You'll own the entire lifecycle of high-impact systems, championing 1st principles design to balance cutting-edge aesthetics with elite mechanical performance. This isn't just about component release; it's about collaborating with studio design and manufacturing to bring bold,...

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,...

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...

Hermeus is a high-speed aircraft manufacturer focused on the rapid design, build, and test of high-Mach and hypersonic aircraft for the national interest. Working directly with the Department of Defense, Hermeus delivers capabilities that will ensure that our nation, and our allies, maintain an asymmetric advantage over any and all potential adversaries. The Spike Inlet Mechanism Build Engineer will be responsible for the build, integration, and test of supersonic spike inlet mechanisms and mechanical subsystems. This role bridges design, manufacturing, and test to ensure mechanism hardware is manufacturable, reliable, and performant. The engineer will work closely with design engineers, technicians, manufacturing teams, and test engineers to develop hardware, improve build processes, and support delivering rapid hardware iterations in a fast-paced development environment. Responsibilities Support mechanism design reviews by providing feedback on manufacturability,...

About Neurophos The demand for new data centers and AI compute is rapidly outpacing the planet's energy capacity. Digital solutions are hitting a power wall as we approach the physical limits of traditional silicon. Conquering this bottleneck means rethinking the fundamental architecture of inference compute. The industry's current path can't meet the need, so we're taking a different approach. Instead of traditional electronic circuits, we use silicon photonics and an active, programmable metasurface to perform matrix multiplications at the speed of light. Our optical cells are 10,000x smaller than traditional photonic components, enabling unprecedented density. By using photonics instead of electricity, our chips become more efficient as they scale. This architecture will deliver up to 100 times the energy efficiency of existing solutions while significantly improving performance for large-scale AI inference. We've assembled a world-class team of industry veterans and...

The Ascendancy Group is seeking an experienced Mechanical Engineer with a Secret clearance that is TS/SCI eligible to join our innovative team. This role offers an exciting opportunity to contribute to the design, development, and improvement of mechanical systems and products in a dynamic and collaborative environment. If you are passionate about engineering solutions and eager to grow your career, we encourage you to apply. Requirements Position Requirements: • Secret Clearance - TS/SCI Eligible • B.S. in Mechanical/Robotics/Aeronautical Engineering; or applicable engineering or science field. • Minimum of 3 years of hands-on professional experience. • Extensive knowledge of aviation principles and unmanned systems (UxS). - 3 years. Extensive knowledge in electric propulsion and combustible power systems - 3 years. • Understanding of material properties (strength, weight, durability, thermal conductivity) and their impact on Unmanned Systems (UxS) performance. • Proven...

Join our Team as a BATTERY PACK DESIGN ENGINEER! The Role: We're seeking a passionate and dedicated Battery Pack Design Engineer who brings enthusiasm and expertise to the table. In this role, you'll lead the architecture, design, component selection, development, validation, and launch of lithium-ion battery packs and modules. This role will play a key part in the design and development of battery systems, contributing to battery structures, module packaging, thermal management systems, electrical isolation features, safety-critical components, and enclosure assemblies from concept through production release. Working closely with cross-functional engineering, manufacturing, validation, and supplier teams, the successful candidate will help define and execute robust design solutions that meet performance, safety, reliability, manufacturability, and cost objectives. The ideal candidate brings strong battery design expertise, systems-thinking capability, and hands-on product...

About Charm Our mission is to return the atmosphere to 280 ppm CO₂. We convert excess inedible biomass into carbon-rich bio-oil and inject it into underground storage for permanent carbon removal. At scale, we can use bio-oil to make fossil-free iron. Our carbon removal efforts began in 2020 with initial purchases from customers like Stripe, Shopify, and Microsoft. Since then, we've scaled to thousands of tons of carbon removal , grown to over a hundred employees, and established three locations in San Francisco, Colorado, and Louisiana. We're expanding our team of ambitious, creative, and hands-on problem solvers. We value psychological safety, collaboration, and continuous learning. We take calculated risks and treat mistakes as opportunities to improve. If you're excited about tackling big challenges, we encourage you to explore our company values . Come help us reverse climate change. Gigatons or bust! About the Role As a Senior Mechanical Engineer based out of our...