119 principal mechanical design engineer jobs found

Summary of Position: Serves as a principal-level technical leader within the Structural & Cab Engineering Team. This role operates with a high degree of autonomy, provides subject matter expertise on complex mechanical and structural design assignments, and leads the translation of engineering direction into executable plans. The position is intended to provide senior technical leadership and succession capability for future engineering leadership needs. Responsibilities : Plan, conceptualize, and create mechanical designs for new and existing products while ensuring alignment with broader product, quality, manufacturability, and business objectives. Serve as a subject matter expert for complex mechanical and structural systems, including machine structures, winches/gearboxes, motors, sheaves, drums, enclosures, operator cabs, and related equipment systems. Develop mechanical and structural connection designs, including bolted, pinned, and welded connections, and guide...

Attalon is a U.S.-based aerospace and defense technology company created in 2025 when Advent International carved out Coherent's Aerospace & Defense division. Attalon develops and produces mission-critical optical systems, precision coatings, and advanced laser subsystems used in ISR&T, space, missile, and directed-energy applications. Principal Opto-Mechanical Design Engineer Conceive and develop optical, mechanical, and opto-mechanical system and subsystem layouts. Create highly complex designs, collaborate with cross-functional partners to ensure optimal system performance, and deliver fast, efficient opto-mechanical concepts using 3D solid-modeling tools aligned with customer requirements. Provide support to Engineering, Program Management, and Operations through the design and development of models used for analysis, prototyping, production, and mechanical manufacturing activities as assigned. Responsibilities • Design intricate opto-mechanical components and...

X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page, www.x-energy.com/careers/. We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at www.x-energy.com/contact-us. Job Description X-energy, LLC is seeking an accomplished Principal Engineer/Mechanical Engineering Manager (Heat Exchanger Design) to lead our advanced Mechanical Design team in the development of Steam Generators and Heat Exchangers for advanced nuclear reactor applications. This leadership position drives the strategic direction and technical excellence of mechanical design operations for the Steam Generator of the Xe-100 Small Modular Reactor (SMR), with particular emphasis on mission-critical reactor systems. The successful candidate...

Req # : JR-2026-01255 Job Title : Principal Development Engineer - Flexible Printed Electronics Job Location : South Deerfield, MA Job Description : The purpose of this position is to function as a subject matter expert internally and externally as it pertains to successful implementation of flexible and/or stretchable film substrates in printed electronics applications. The successful candidate will be hands-on leading the design and management of trials and experiments using materials, equipment, and test methods to enable development of Covestro Specialty Films substrates and advise customers on successful implementation and use of its products in targeted applications. Major Tasks & Responsibilities: Collaborate with Specialty Films technical and commercial staff to understand capabilities and limitations with respect to application and customer processing of Specialty Films products. Directly manage the design, installation, and commissioning of new...

Thales Defense & Security, Inc. (TDSI) Headquartered in Clarksburg, MD, is a U.S. company that has been serving domestic and international defense Air, Land and Sea domains for 60+ years. With over 1,000 employees, TDSI and its four subsidiaries (Advanced Acoustic Concepts, Digital Receiver Technology, Tampa Microwave, and Trusted Cyber Technologies), supports U.S. Joint Services, special operations forces and multi-national partners with a variety of communication, visualization, signal intelligence/electronic warfare, and sensor/sonar capabilities. TDSI's key technologies include tactical handheld radios, expeditionary satellite terminals, helmet-mounted displays, optics and target recognition capability, advanced radars, undersea sensing and missile systems. Lives depend on what we do! Top Benefits (Subject to terms of applicable policies/plans) Competitive Salary Yearly Incentive Compensation Plan Medical insurance for self and eligible family members Generous...

Thales Defense & Security, Inc. (TDSI) Headquartered in Clarksburg, MD, is a U.S. company that has been serving domestic and international defense Air, Land and Sea domains for 60+ years. With over 1,000 employees, TDSI and its four subsidiaries (Advanced Acoustic Concepts, Digital Receiver Technology, Tampa Microwave, and Trusted Cyber Technologies), supports U.S. Joint Services, special operations forces and multi-national partners with a variety of communication, visualization, signal intelligence/electronic warfare, and sensor/sonar capabilities. TDSI's key technologies include tactical handheld radios, expeditionary satellite terminals, helmet-mounted displays, optics and target recognition capability, advanced radars, undersea sensing and missile systems. Lives depend on what we do! Top Benefits (Subject to terms of applicable policies/plans) Competitive Salary Yearly Incentive Compensation Plan Medical insurance for self and eligible family members Generous...

SP Industries, Inc. is expanding our team in and has an opening for a Senior Systems Engineer . We're looking for a Senior Systems Engineer who wants true technical ownership - someone ready to step beyond a single discipline and take responsibility for how complex systems come together, perform, and succeed in the field. In this role, you'll be the technical glue across mechanical design, controls, automation, process engineering, quality, and manufacturing. You'll work at the system level to ensure our pharmaceutical equipment meets customer needs, regulatory expectations, and long-term performance goals-from early concept through qualification and deployment. This position is a strong fit for an experienced engineer who: Enjoys seeing the whole system, not just their piece of it Wants more authority, accountability, and visibility Is looking for a clear path into senior technical leadership or principal-level roles What You'll Own You'll be embedded on-site with a...

We are Covestro. We are curious. We are courageous. We are colorful. We refine chemical material solutions with game-changing products. Let us empower you to push boundaries. Join us and our 18,000 colleagues now and together we will make the world a brighter place. The purpose of this position is to function as a subject matter expert internally and externally as it pertains to successful implementation of flexible and/or stretchable film substrates in printed electronics applications. The successful candidate will be hands-on leading the design and management of trials and experiments using materials, equipment, and test methods to enable development of Covestro Specialty Films substrates and advise customers on successful implementation and use of its products in targeted applications. Major Tasks & Responsibilities : Collaborate with Specialty Films technical and commercial staff to understand capabilities and limitations with respect to application and customer...

Professional Engineer Department: Construction, Engineering, & Skilled Trades Employment Type: Full Time Location: Florida Compensation: $125,000 - $150,000 / year Description Job Title: Senior Electrical Engineer (P.E.) Location: Tampa, Florida (Onsite Required) Employment Type: Full-Time, W2 Compensation: $120,000 to $145,000 annual salary (Hard cap: $150,000) Schedule: Monday through Friday, 7:30 AM to 4:30 PM Travel Expectations: Occasional in-state travel for site visits. No regular overnight or out-of-state travel expected. About the Opportunity: Join a 52-year-old, privately owned, multi-disciplinary architecture and engineering firm based in South Tampa with a strong book of government and institutional work across the state of Florida. Long & Associates Architects/Engineers, Inc. offers a hands-on, in-house environment where collaboration across architecture, structural, mechanical, and electrical teams is the norm. This role is...

At Atom Computing, we build quantum computers using arrays of optically trapped neutral atoms that will empower customers to achieve unprecedented computational breakthroughs. Join a world-class team of scientists, engineers, and business professionals to advance the state-of-the-art in quantum computing. Atom Computing is seeking a Principal Opto-Mechanical Engineer to help lead the design of opto-mechanical subsystems, while also assisting with fixturing, assembly, alignment, test, and integration. Job Responsibilities Initiate and lead the design and specification of complex, next-generation opto-mechanical systems, ultra-high vacuum chambers, and mechanical infrastructure from the component level up to the system level. Collaborate with technical leaders across engineering domains to define product requirements and inform the next-generation hardware development lifecycle. Partner with physicists and subject matter experts to architect robust mechanical solutions for...

WHAT YOU DO AT AMD CHANGES EVERYTHING At AMD, our mission is to build great products that accelerate next-generation computing experiences-from AI and data centers, to PCs, gaming and embedded systems. Grounded in a culture of innovation and collaboration, we believe real progress comes from bold ideas, human ingenuity and a shared passion to create something extraordinary. When you join AMD, you'll discover the real differentiator is our culture. We push the limits of innovation to solve the world's most important challenges-striving for execution excellence, while being direct, humble, collaborative, and inclusive of diverse perspectives. Join us as we shape the future of AI and beyond. Together, we advance your career. THE ROLE As a Principal Mechanical Engineer in the Data Center Platform Engineering Group, you will drive the mechanical design for AMD's next-generation server and GPU platforms. This role is highly technical and influential, requiring deep...

Career Area: Engineering Job Description: Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it. Solar Turbines is looking for a motivated team member to work on New Product Introduction (NPI) using the agile development process. The Principal NPI Mechanical Engineer is responsible for driving the development and delivery of new turbomachinery products from concept through beneficial use. This role leads mechanical design efforts, evaluates and refines design solutions, and ensures they are safe, high-quality, and cost-effective. Success in this...

Quantum Space is redefining mobility and maneuverability in space. Our high-mobility spacecraft platforms support national security, civil, and commercial missions with unmatched flexibility and propulsion capability. We build fast and iterate quickly. Who We're Looking For We are seeking a Senior Mechanical Engineer to own flight hardware development on our Spacecraft Programs. This role is built for an engineer who can take a subsystem/component from requirements to a released design, through build, integration, and test-while collaborating tightly with AIT and manufacturing. Senior-level expectations include independent ownership of deliverables and leadership of technical execution for meaningful scopes. Where You'll Make an Impact Own mechanical components/subsystems end-to-end: requirements, design, analysis coordination, release, and integration support Develop CAD and drawings in Creo; apply GD&T and define inspectable requirements Drive interface closure:...

Position: Mechanical Engineer Location: Royal Oak, Michigan Work Type: On-site Job Type: Full-Time Experience: 7+ Years Position Overview We are seeking a Licensed Mechanical Engineer (PE required) to lead mechanical and plumbing design efforts within a growing in-house engineering team. This role supports healthcare, institutional, and commercial projects and is responsible for producing stamped construction documents and coordinating multidisciplinary building systems. The ideal candidate will work closely with electrical, architectural, and external engineering teams to deliver fully coordinated HVAC and plumbing system designs across all project phases. Healthcare project experience is highly preferred. Key Responsibilities Design and stamp mechanical and plumbing construction documents across all project phases Perform HVAC system design including load calculations, equipment sizing, and system selection Design plumbing systems including domestic...

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...

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....

We believe that great healthcare is an essential safeguard of human dignity. At Laborie, we know the work we do matters - it's what fuels our motivation and contributes to our success. If you're ready to make a positive impact in the lives of patients across the globe, we'd like to meet you. We support and empower our employees to grow their careers in an environment that encourages a sense of belonging and a connection to doing good. We're not afraid to roll up our sleeves to make our goals a reality and work together to solve for our customers. We reward and recognize our employees based on our values of Aspire to Greatness, Respect All, Own It, Working Together, Persist with Passion. Who We're Looking For: As a key member of the Manufacturing team, the Principal Manufacturing Engineer will assist in creating strategies and systems which allow all Laborie sites to assess operational needs. The role will aid others in investigating, recommending and implementing improvements...

Location: The Greater Los Angeles Metropolitan Area, CA (Onsite) If you're interested in learning more about this opportunity or beginning the interview process, feel free to connect directly via LinkedIn: LinkedIn: https://www.linkedin.com/in/ra... Principal Mechanical Engineer - Launcher Systems An advanced aerospace and defense technology company is seeking a highly experienced Principal Mechanical Engineer to lead the architecture, design, and integration of next-generation launcher systems supporting UAV and missile platforms. This role will own launcher hardware development from concept definition through production and deployment across mobile ground and maritime applications. The ideal candidate brings deep launcher system expertise, strong electro-mechanical integration capability, and direct experience designing ruggedized hardware for harsh operational environments. This is a highly hands-on technical leadership role suited for engineers who thrive in fast-moving...

Location: The Greater Los Angeles Metropolitan Area, CA (Onsite) If you're interested in learning more about this opportunity or beginning the interview process, feel free to connect directly via LinkedIn: LinkedIn: https://www.linkedin.com/in/ra... Principal Mechanical Engineer - Platform Integration An advanced aerospace and defense technology company is seeking a Principal Mechanical Engineer to lead the integration of ruggedized sensor and electronics systems onto large mobile platforms for government and defense applications. This role is focused on translating advanced sensing and electronics technologies into durable, field-deployable systems capable of surviving demanding operational environments across vehicle, trailer, and maritime platforms. The ideal candidate brings deep experience with mechanical integration, ruggedized hardware design, environmental survivability, and large-scale platform constraints. This is a highly hands-on engineering role requiring...

Start designing tomorrow's future! Buro Happold has an exciting opportunity for a talented and highly experienced Mechanical Engineer to join our team in New York City! The Associate Principal Mechanical Engineer will play a pivotal role in providing technical expertise and leadership to our Building Environments Group. You will work closely with clients, architects, other Buro Happold Engineers, and/or design team members as part of a dedicated and skilled team. Here at Buro Happold, expect the exceptional. From the projects you will work on to the clients we work with. From career-defining opportunities to an inclusive and diverse practice where we all contribute to a more equitable world. From our reputation to our relationships. Wherever your Buro Happold career takes you, it'll be anything but ordinary. Your next role Join us and be surrounded by exceptional opportunities in an environment alive with innovation and possibility. Your new team has a...