576 mechanical engineer jobs found in Oak Ridge, TN

Senior Mechanical Engineer Amentum is a global leader in advanced engineering and innovative solutions, supporting critical missions across defense, intelligence, energy, and civilian sectors. Our people are our competitive advantage, driven by purpose, collaboration, and a commitment to delivering excellence for our customers and communities. We are currently seeking a Senior Mechanical Engineer to support our Projects . Description: As a senior-level mechanical engineer, you will serve as a technical leader responsible for the design, coordination, and delivery of building mechanical systems for industrial and government facilities. This role includes oversight of HVAC, plumbing, and piping system designs; leadership of mechanical engineering teams; and accountability for technical quality and compliance throughout the project lifecycle. The successful candidate will work closely with project management, discipline leads, and clients to deliver fully coordinated,...

At BWX Technologies, Inc. (NYSE: BWXT), we are People Strong, Innovation Driven. A U.S.-based company, BWXT is a Fortune 1000 and Defense News Top 100 manufacturing and engineering innovator that provides safe and effective nuclear solutions for global security, clean energy, environmental restoration, nuclear medicine and space exploration. With more than 7,800 employees, BWXT has 14 major operating sites in the U.S., Canada and the U.K. We are the sole manufacturer of naval nuclear reactors for U.S. submarines and aircraft carriers. Our company supplies precision manufactured components, services and fuel for the commercial nuclear power industry across four continents. Our joint ventures provide environmental restoration and operations management at a dozen U.S. Department of Energy and NASA facilities. BWXT's technology is driving advances in medical radioisotope production in North America and microreactors for various defense and space applications. For more information, visit...

Major Equipment Mechanical engineer support includes estimating, specifying, designing, procurement and construction support of specialty and first of a kind equipment such as gloveboxes, furnaces, high vacuum systems and metal casting/machining equipment. Subcontractor will create design concepts using Pro/Engineer (CREO) CAD software and topology optimization software as appropriate. Experience leading multi-discipline machine design efforts and producing build to print equipment fabrication packages is preferred as well as CREO parametric experience. Hours will be 06:00 - 16:30, Monday through Thursday. The position will be full time. No travel is expected for this position. Ability to obtain a Q level clearance is required.

Boston Government Services (BGS) is seeking a Specialty Mechanical Engineer to support our clients at the Y12 National Security Complex in Oak Ridge, Tennessee. BGS is an engineering, technology, and security firm helping to advance missions of national importance for government programs, national laboratories, national security facilities, nuclear operations, and complex projects. We support clients at every stage, from strategic planning and program management to the execution of engineering and technical activities. We work to attract and retain the best talent because the best talent delivers the best results for our clients. Our capabilities are based on our experience in complex, secure, and highly regulated environments. We leverage our experience and capabilities to provide mission-driven solutions tuned to our client's mission needs and strategic direction. Work that Matters. People that Matter More. At BGS, we believe meaningful work starts with great people. We...

Boston Government Services (BGS) is seeking a Mechanical Engineer to support our clients at the Y12 National Security Complex in Oak Ridge, Tennessee. BGS is an engineering, technology, and security firm helping to advance missions of national importance for government programs, national laboratories, national security facilities, nuclear operations, and complex projects. We support clients at every stage, from strategic planning and program management to the execution of engineering and technical activities. We work to attract and retain the best talent because the best talent delivers the best results for our clients. Our capabilities are based on our experience in complex, secure, and highly regulated environments. We leverage our experience and capabilities to provide mission-driven solutions tuned to our client's mission needs and strategic direction. Work that Matters. People that Matter More. At BGS, we believe meaningful work starts with great people. We foster a...

ABOUT THE ROLE We are seeking a Specialty Mechanical Engineer to join our team supporting the DOE's Y-12 National Security Complex ! This position is full-time and will be based out of Oak Ridge, Tennessee. Responsibilities Creating design and procurement documents for specialty and first-of-a-kind equipment such as glovebox systems, furnaces, high vacuum systems, metal casting/machining equipment, etc.). Collaborating with designers to develop build-to-print design packages of custom, specialty equipment. Developing procurement documents such as equipment specifications, statements of work, and datasheets. Performing calculations and analysis associated with machine design (to include, but not limited to, finite element analysis, structural and seismic analysis, ergonomic studies, kinematic calculations and heat transfer calculations). Requirements Education & Years of Experience - Bachelor's Degree in Engineering from an ABET accredited school and 10+...

Company Description: Professional Project Services Inc. has upcoming opportunity for Mechanical Engineer III-Piping (Contract Employment for up to 12 months) position in Oak Ridge, TN. Please submit resumes via the web page link below. Professional Project Services, Inc. (Pro2Serve®) is a nationally-recognized technical and engineering services firm dedicated to providing critical infrastructure engineering services in support of our Nation's security. Pro2Serve provides solutions to improve the effectiveness and efficiency of our government and private clients. We support the defense, energy, and science markets through responsive, cost-effective execution of critical security, facilities and infrastructure, nuclear defense and nonproliferation, and environmental projects. Job Description Principle Areas of Responsibility: Piping Developing process flow diagrams, piping and instrumentation diagrams, and sequences of operations; selection and layout of...

Akima Infrastructure Services, LLC (AIS), is actively seeking Engineering, Professional, Technical, and Administrative support personnel as part of our staff augmentation team supporting the Department of Energy at the Y-12 National Security Complex located in Oak Ridge, Tennessee and the Pantex Plant located in Amarillo, Texas. Successful candidates will be employees of AIS, a premier government contractor charged with employing highly motivated and well-qualified personnel who can advance Y-12's core mission to ensure a safe, secure, and reliable U.S. nuclear deterrent, which is essential to national security. Though employed by AIS, the employee will take day-to-day direction and assignments from Y-12 staff employed directly by the security complex. Pay, benefits, Human Resources, and Employment Management functions are provided by AIS. To join our team of outstanding professionals, apply today! Qualified applicants must be a US citizen, at least 18 years of age, and able to...

MS Technology, Inc. is seeking a Mechanical Engineer, P.E. with facility (e.g., piping/plumbing design, HVAC, facility utilities) and/or system (e.g., skids, pump systems, hydraulics/pneumatics) design experience to support complex nuclear and industrial projects. The ideal candidate will have experience developing piping system layouts, engineering deliverables, and design documentation in collaboration with multi-disciplinary engineering teams. Location: Onsite and/or Hybrid in Oak Ridge, TN Salary Range: Depending on Experience Responsibilities: Support system and mechanical engineering design activities for complex industrial and nuclear projects Prepare and review engineering deliverables including P&IDs, specifications, calculations (e.g., pipe stress, hydraulic, safety valve sizing, ventilation sizing), and equipment arrangements Develop piping and utility system designs supporting facility infrastructure, process support systems, and operations Coordinate...

MS Technology, Inc. is seeking a Sr. Mechanical Engineer to support our client in Oak Ridge, TN. Summary: This role utilizes parametric 3D modeling tools such as CREO or SolidWorks. The Sr. Mechanical Engineer will support scopes of work associated with components, assemblies, and machines within the project, providing technical expertise to help achieve program goals and objectives while ensuring compliance with established standards and practices. Location: Onsite in Oak Ridge, TN Salary Range: Depending on Experience Responsibilities: Assist in leading, designing, building, and troubleshooting the following Plant expansion activities Large scale heating and cooling systems High vacuum systems Filtration systems Helium leak detection equipment Composite parts and assemblies Machined parts and assemblies Assist in design and analysis of structural and dynamic systems Design manufacturing equipment as needed for manufacturing activities Develop...

Job Summary Specialty Mechanical Engineers in the Projects Equipment Design Engineering organization develop design and procurement documentation for custom and first-of-a-kind mechanical systems, including glovebox systems, furnaces, high-vacuum systems, and metal casting/machining equipment. This role involves collaborating with designers, performing detailed engineering calculations, and producing complete build-to-print fabrication packages. The engineer supports the full lifecycle of specialty equipment design, from initial requirements through fabrication documentation. Key Responsibilities • Develop build-to-print design packages for custom mechanical systems. • Prepare procurement documents including equipment specifications, statements of work, and datasheets. • Perform engineering calculations and analyses such as: - Finite element analysis - Structural and seismic analysis - Ergonomic and kinematic evaluations - Heat-transfer calculations • Produce complete...

Boston Government Services, LLC. (BGS) has created this Evergreen Talent Pool post for gathering qualified candidates for a position relating to Mechanical Engineer to support the Advance Energy Business Unit at our corporate office in Oak Ridge, TN. BGS is an engineering, technology, and security firm helping to advance missions of national importance for government programs, national laboratories, national security facilities, nuclear operations, and complex projects. We support clients at every stage, from strategic planning and program management to the execution of engineering and technical activities. We work to attract and retain the best talent because the best talent delivers the best results for our clients. Our capabilities are based on our experience in complex, secure, and highly regulated environments. We leverage our experience and capabilities to provide mission-driven solutions tuned to our client's mission needs and strategic direction. Work that Matters....

MS Technology, Inc. is seeking a Mechanical Engineer to support our client in Oak Ridge, TN. Summary: This role utilizes parametric 3D modeling tools such as CREO or SolidWorks. The Mechanical Engineer supports scopes of work associated with components, assemblies, and machines within the project, providing technical expertise to help achieve program goals and objectives while ensuring compliance with established standards and practices. Responsibilities: Assist in leading, designing, building, and troubleshooting the following Plant expansion activities Large scale heating and cooling systems High vacuum systems Filtration systems Helium leak detection equipment Composite parts and assemblies Machined parts and assemblies Assist in design and analysis of structural and dynamic systems Design manufacturing equipment as needed for manufacturing activities Develop specifications for fabrication materials and equipment Assist in the creation, review, and...

Dometic is a global market leader in the mobile living industry. Millions of people around the world use Dometic products in outdoor, residential, and professional applications. Our Marine organization is a trusted provider of innovative solutions for the worldwide boating and boat building industry, and we recently expanded our scope to lead the boating industry into an electrified future. Dometic has won numerous NMMA Innovation Awards over the years and we are always striving for new ways to make boating easier, safer, and more enjoyable. We are on a journey of continuous growth - now looking for our next star - a passionate Mechanical Engineer . This position reports to the Engineering Manager and will work in Sparta, TN. About the position As Mechanical Engineer of the Sparta team, you will be involved in leading the development, validation, launch, and ongoing support of mechanical and electromechanical products used in marine steering applications. This role...

Our Marine organization is a trusted provider of innovative solutions for the worldwide boating and boat building industry, and we recently expanded our scope to lead the boating industry into an electrified future. Dometic has won numerous NMMA Innovation Awards over the years, and we are always striving for new ways to make boating easier, safer, and more enjoyable. Dometic Marine's facility in Sparta, TN produces roto-molded fuel and ballast tanks and other roto-molded products for industrial applications. The site also manufactures select marine furniture, aluminum tanks, blow-molded portable tanks, sanitation systems, and steering components. We are on a journey of continuous growth - now looking for our next star - a passionate Mechanical Engineer . This position reports to the Engineering Manager and will work in Sparta, TN. About the position As Mechanical Engineer of the Sparta team, you will be involved in leading the development, validation, launch, and ongoing...

Job Type Full-time Description About Sherman + Reilly Sherman + Reilly, Inc. is a Chattanooga-based manufacturer of tools and equipment for the electric utility industry, serving utility companies, cooperatives, and line contractors around the world. As part of the Quanta Services family of companies, we combine a century of industry expertise with the resources and stability of a global infrastructure leader. Our products are built here - designed, engineered, and manufactured by a team that takes real pride in what comes off the production floor. The Opportunity We are looking for a Mechanical Engineer I to join our Engineering team in Chattanooga. This is an on-site, hands-on role where you'll work alongside experienced engineers on product development projects that directly impact the tools utility crews rely on every day. If you're early in your career and want to build real engineering skills in a real manufacturing environment - not just staring at a screen - this...

Founded in 1920, Eastman is a global specialty materials company that produces a broad range of products found in items people use every day. With the purpose of enhancing the quality of life in a material way, Eastman works with customers to deliver innovative products and solutions while maintaining a commitment to safety and sustainability. The company's innovation-driven growth model takes advantage of world-class technology platforms, deep customer engagement, and differentiated application development to grow its leading positions in attractive end markets such as transportation, building and construction, and consumables. As a globally inclusive company, Eastman employs approximately 13,000 people around the world and serves customers in more than 100 countries. The company had 2025 revenue of approximately $8.8 billion and is headquartered in Kingsport, Tennessee, USA. For more information, visit www.eastman.com. Responsibilities As a Mechanical Engineer at Eastman,...

Collaborative Design. Technical Excellence. Community Impact. Are you a senior mechanical building services professional who loves solving the puzzle of complex MEP systems and leading projects from start to finish? Thompson & Litton is seeking a self-motivated Senior Mechanical Engineer - Building Services to join our multidisciplinary team. Whether you are driving high-efficiency HVAC load strategy, overseeing life safety fire protection design, or mentoring the next generation of engineers, you'll play a key role in delivering complete building services solutions across commercial, industrial, and institutional projects. The Role: From Concept to Completion As a senior member of our Building Services engineering team, you will lead the full scope of design and project delivery for commercial, industrial, and institutional projects. You will: Design and Lead: Drive the production of comprehensive mechanical building services packages, including advanced HVAC,...

Overview Stryten Energy builds batteries. Batteries that power your world. From cars, trucks, and boats to forklifts, railways, and UPS systems, Stryten batteries offer endurance and reliability. For our transportation batteries, we work directly with retail partners to put batteries on their shelves and then into your vehicles. For our motive and network power batteries, we sell directly to our customers. We partner with our customers to identify their needs and then find the best solution for that need, regardless of technology. We are not betting our future on any one solution. Instead, we believe the future will involve great battery technology, which will include both advanced lead and lithium solutions, depending on customer needs. Stryten Energy is located north of Atlanta in Alpharetta, GA. We are looking for a Mechanical Engineering student from May 2027 through August 2027. This is a 40-hour week, paid opportunity, but housing is not provided, so you must have both...

As a Fortune 500 company, Packaging Corporation of America (PCA) is an ideas and solutions company. Our corrugated packaging business seeks to be the leader in helping our customers - large and small - package, transport and display products of all kinds. Our white paper business delivers Paper With Purpose by providing the highest level of customer service and operational excellence. We have approximately 15,000 team members in more than 100 locations in the United States that strive to meet the local needs of our customers. Our mission is to serve the needs of our customers, today and tomorrow, with products and services that exceed expectations for performance and environmental responsibility. People • Customers • Trust Mechanical Engineer We are seeking resumes for a full-time Mechanical Engineer . This application may lead to one of two potential job titles depending on mill need: Mechanical Reliability Engineer or Mechanical Project Engineer . The primary...