198 principal mechanical engineer jobs found

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...

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...

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...

Location: United States - Minneapolis, MN Pay: $113,600 - 175,700 With more than $1B in revenue, Tennant Company is a globally recognized leader in the cleaning equipment industry. For the past 150 years, we have been passionate about developing and manufacturing innovative and sustainable solutions for our customers. At Tennant Company, we are committed to stewardship and creating a cleaner, safer and healthier world. With manufacturing, operations and sales, service, and support functions across the globe, your journey at Tennant can take you places you never expected. The Principal Mechanical Engineer is a senior technical authority responsible for defining and guiding the architecture, design strategy, and execution of complex mechanical and electro-mechanical systems within new product development. This role applies deep product and process technology knowledge, develops and applies advanced engineering methodologies, and provides technical direction where precedent may...

Job Type Full-time Description Viken Detection is seeking a highly experienced Principal Mechanical Engineer to provide technical leadership and architectural ownership across our advanced detection and imaging systems. This highest-level individual contributor role sets mechanical design strategy, drives cross-platform alignment, and tackles complex system-level challenges. The Principal Mechanical Engineer partners closely with Engineering, Physics, Program Management, and Operations to deliver high-performance, manufacturable, reliable, and cost-effective solutions from concept through sustaining engineering. Responsibilities Serve as mechanical system architect for major product platforms Lead system-level design decisions, trade studies, and risk mitigation Establish mechanical standards, best practices, and reusable design architectures Drive cross-functional alignment across mechanical, electrical, software, and physics teams Lead development of complex...

Attalon / Location Overview Attalon is a leading technology partner to the global aerospace and defense industry, specializing in lasers and precision optics. With over 500 employees in the U.S., Attalon engineers critical optical, laser, and coating technologies that enable systems to see farther, target faster, and survive the harshest environments. From high-energy directed laser systems to satellite optics and hypersonic thermal protection, Attalon equips the warfighter with the advantage of precision. This role is an on-site position based in Beavercreek, OH . Our Laser Systems Integration facility focuses on building high energy lasers for the defense market, supporting critical national security initiatives and defense innovation. At Attalon, we're redefining performance, precision, and reliability in defense technologies. Job Details A Principal ME will demonstrate expertise in the development of precision, opto-mechanical subsystems such as gimbaled telescopes,...

Introduction Werfen Werfen is a growing, family-owned, innovative company founded in 1966 in Barcelona, Spain. We are a worldwide leader in specialized diagnostics in the areas of Hemostasis, Acute Care Diagnostics, Transfusion, Autoimmunity, and Transplant. Through our Original Equipment Manufacturing (OEM) business line, we research, develop, and manufacture customized assays and biomaterials. We operate directly in 30 countries, and in more than 100 territories through distributors. Our Headquarters and Technology Centers are located in the US and Europe, and our workforce is more than 7,000 strong. Our success comes from a specific focus in these rapidly evolving diagnostic areas, our commitment to customers, and our dedication to innovation and quality. We're passionate about providing healthcare professionals the most valuable and complete solutions to improve hospital efficiency and enhance patient care. Overview Position Summary: The Principal Mechanical...

Attalon / Longmont, CO Overview At Attalon, we are at the forefront of designing and delivering cutting-edge precision optical systems tailored for the most challenging environments. From spaceborne telescopes to seaborne sensor systems, our innovative solutions serve a critical role in advancing global defense and aerospace missions. If you're passionate about creating technical excellence and solving complex engineering challenges, join our team of world-class professionals committed to pushing the boundaries of possibility. Located along Colorado's scenic Front Range and nestled in the foothills of the Rocky Mountains, Longmont offers a high quality of life, breathtaking natural beauty, and easy access to outdoor recreation, making it the perfect place to balance work and play. Job Title: Principal Mechanical Engineer Job Details A Principal ME will demonstrate expertise in the design, analysis and integration planning of precision, opto-mechanical subsystems such as...

Attalon / Longmont, CO Overview At Attalon, we are at the forefront of designing and delivering cutting-edge precision optical systems tailored for the most challenging environments. From spaceborne telescopes to seaborne sensor systems, our innovative solutions serve a critical role in advancing global defense and aerospace missions. If you're passionate about creating technical excellence and solving complex engineering challenges, join our team of world-class professionals committed to pushing the boundaries of possibility. Located along Colorado's scenic Front Range and nestled in the foothills of the Rocky Mountains, Longmont offers a high quality of life, breathtaking natural beauty, and easy access to outdoor recreation, making it the perfect place to balance work and play. Job Title: Principal Mechanical Engineer Job Details A Principal ME will demonstrate expertise in the design, analysis and integration planning of precision, opto-mechanical subsystems such as...

Start designing tomorrow's future! Buro Happold has an exciting opportunity for a talented and experienced Mechanical Engineer to join our team in Los Angeles, California! 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...

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...

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...

Job Title Senior Principal Mechanical R&D Engineer Location(s) Kennesaw GA About Us Revvity is a developer and provider of end-to-end solutions designed to help scientists, researchers, and clinicians solve the world's greatest health challenges. We pair the enthusiasm of an industry disruptor with the experience of a longtime leader. Our team of 11,000+ colleagues from around the globe are vital to our success and the reason we're able to push boundaries in pursuit of better human health. Find your future at Revvity The Big Picture As a Sr Mechanical Design Engineer, you will help ensure both company and client goals are met at the project level. Provide quality-focused design, development, testing, and fulfillment of the processes and systems used to execute projects, including sustaining support for existing products. What's in it for you A place for your talents to shine while enjoying growth-oriented development opportunities. Engage in...

About the job Who We Are Radiant Roadways, Inc. is a small, hungry hardware company building the RADROAD-APEX platform, a new generation of intelligent, connected roadside safety signs. Illuminated signs first with cellular and mesh comms, solar-and-battery power, radar and multi-sensor awareness, and high-output illumination, all in one ruggedized platform designed to save lives on public roadways. Prototypes are built. Investors are committed. Two provisional patents are filed. The DOT market is wide open and ready for a serious product. We intend to take it. We are lean and we move fast. No corporate layers, no investor theater, just a small team of engineers who own their work end-to-end supported by an elite sales team taking to regulatory sign world by storm. The Role We are looking for a Founding Engineer to own the electrical and systems side of RADROAD-APEX. Not a cog or apprentice but a true owner. You will be an integral part of a small engineering team of...

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....

Skillset Group is seeking a Senior Ball Screw Mechanical Engineer to work in either Rockford, IL or Freeland, MI. The Senior Ball Screw Design Engineer will lead the design, development, and continuous improvement of high-precision ball screw assemblies used in aerospace, defense, medical, and industrial applications. This role serves as the primary technical expert, partnering with customers, vendors, and manufacturing teams to develop innovative designs, optimize manufacturing processes, and ensure product performance and reliability. The ideal candidate has extensive ball screw design experience, a strong mechanical engineering background, and thrives in a hands-on environment with the opportunity to build and lead a growing engineering team. This is a DIRECT HIRE OPPORTUNITY on 1st shift. Please send your resume to rmills@skillsetgroup.com. Principal Mechanical Engineer DIRECT HIRE OPPORTUNITY!!! Pay: $150-210K/yr. Location: Rockford, IL or...

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...

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...

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...