Mechanical Engineer III-Piping Professional Project Services IncMechanical Engineer III-PipingOak Ridge, TNDeveloping process flow diagrams, piping and instrumentation diagrams, and sequences of operations; selection and layout of mechanical equipment and associated piping systems; and developing mechanical construction and equipment specifications, test and inspection plans, and system design descriptions. Heating and chilled water hydronic piping systems, natural gas piping systems, domestic water and waste water piping systems, steam and condensate piping systems, compressed air systems, and mechanical system controls, etc.
Senior Structural Engineer APTIMSenior Structural EngineerKnoxville, TN$98,000–$163,000 / yearAPTIM structural engineers lend their knowledge and experience to projects for the Department of Defense, the Department of Energy, the Federal Emergency Management Agency, local authorities (nationwide), commercial retail companies, oil and gas providers and various coastal protection authorities. + Strong computer skills (Word, Excel, PowerPoint, Mathcad, and technical engineering software such as STAAD or ANSYS), some CADD experience (AutoCAD and/or MicroStation) along with good verbal and writing skills.
Facility Safety Engineer GEM TechnologiesFacility Safety EngineerOak Ridge, TennesseeThe NNSA's Y-12 National Security Complex, in Oak Ridge, Tennessee, is the nation’s only source of enriched uranium nuclear weapon components and provides enriched uranium for the U.S. Navy as well as excels in materials science, precision manufacturing, and stores enriched uranium. Founded in 1994 as a nuclear engineering firm to support federal operations in East Tennessee, GEM has since expanded into a nationwide, multi-disciplinary provider with over 270 employees and a diverse portfolio of contracts in the environmental, nuclear, and defense sectors.
NewLead Project Engineer 1 Government Services Sargent & Lundy LLCLead Project Engineer 1 Government ServicesOak Ridge, TN$118,023–$180,313 / yearSargent & Lundy's Government Services Division provides cutting-edge engineering design and consulting support to the management and operating contractors for US Department of Energy (DOE) and the National Nuclear Security Administration (NNSA). Working knowledge of processes and procedures for planning, scheduling, budgeting, and tracking engineering design projects; Sargent & Lundy''s processes are based on the principles and practices of the Project Management Institute (PMI).
Civil Engineering Intern - Summer 2027 AtkinsRealis Group IncCivil Engineering Intern - Summer 2027Nashville, TN$25–$31 / hourAs an Intern, you will participate in Explore, our intern development initiative, and will enjoy a host of benefits including: Competitive salary Hands-on experience with industry leaders Support and mentorship from various professionals throughout the business Career and educational exploration opportunities such as Client Site Visits, Weekly Lunch & Learns, & various virtual and/or in-person activities. Note to staffing and direct hire agencies: In the event a recruiter or agency who is not on our preferred supplier list submits a resume/candidate to anyone in the company, AtkinsRéalis family of companies, we explicitly reserve the right to recruit and hire the candidate(s) at our discretion and without any financial obligation to the recruiter or agency.
Strata-G, LLC – College Internship Program Requisition Strata-G, LLCStrata-G, LLC – College Internship Program RequisitionOak Ridge, TNDisciplines: Chemical Engineering, Civil / Structural Engineering, Construction Management, Electrical / I&C Engineering, Environmental Engineering, Facilities Management, Fire Protection Engineering, Industrial Engineering, Materials Science Engineering, Mechanical Engineering, Nuclear Engineering, Process Engineering, Systems Engineering, or other related fields. Disciplines: Applied Physics, Chemical Engineering / Chemistry, Electrical Engineering, Health Physics / Radiological Science, Industrial Engineering, Materials Science / Engineering, Mechanical Engineering, Nuclear Engineering, Safety Oversight, Systems Engineering, Quality Assurance / Control, or other related fields.
NewSenior Project Manager Energy - Remote AtkinsRealis Group IncSenior Project Manager Energy - RemoteOak Ridge, TNRemote$113,000–$188,000 / yearRequires leadership of all AtkinsRéalis project team members, and responsible for developing work execution plans, assignment of or recruitment of project team members, development of overall work breakdown structure (WBS), project deliverables, organizational chart, budget, schedule, subcontract and supplier strategy, risk management, project forecast and people forecasting and leveling for the project. Note to staffing and direct hire agencies: In the event a recruiter or agency who is not on our preferred supplier list submits a resume/candidate to anyone in the company, AtkinsRéalis family of companies, we explicitly reserve the right to recruit and hire the candidate(s) at our discretion and without any financial obligation to the recruiter or agency.
Senior Licensing and Regulatory Affairs Specialist Energy - Remote AtkinsRealis Group IncSenior Licensing and Regulatory Affairs Specialist Energy - RemoteOak Ridge, TNRemote$113,000–$216,000 / yearNote to staffing and direct hire agencies: In the event a recruiter or agency who is not on our preferred supplier list submits a resume/candidate to anyone in the company, AtkinsRéalis family of companies, we explicitly reserve the right to recruit and hire the candidate(s) at our discretion and without any financial obligation to the recruiter or agency. Interfaces with Executive Leadership, Project Director, NSSS Vendor, Design Builder, Construction Manager, and Site Engineering Manager for all licensing matters in project, or phase of the project, as applicable.
Aviation Project Manager AtkinsRealis Group IncAviation Project ManagerChattanooga, TN$100,000–$150,000 / yearNote to staffing and direct hire agencies: In the event a recruiter or agency who is not on our preferred supplier list submits a resume/candidate to anyone in the company, AtkinsRéalis family of companies, we explicitly reserve the right to recruit and hire the candidate(s) at our discretion and without any financial obligation to the recruiter or agency. In this role, you'll lead the full lifecycle of complex aviation design and construction projects-bringing together technical expertise, strategic leadership, and client partnership to deliver high-impact, mission-critical solutions.
Senior Project Controls Specialist Energy - Remote AtkinsRealis Group IncSenior Project Controls Specialist Energy - RemoteOak Ridge, TNRemote$113,000–$188,000 / yearAssists and supports projects planning through development of project schedules and cost estimates; schedule maintenance activities; cost engineering analysis and control activities; monitoring that work is completed as scheduled and develops estimates using various sources. Note to staffing and direct hire agencies: In the event a recruiter or agency who is not on our preferred supplier list submits a resume/candidate to anyone in the company, AtkinsRéalis family of companies, we explicitly reserve the right to recruit and hire the candidate(s) at our discretion and without any financial obligation to the recruiter or agency.
Senior Geotechnical Engineer (Nuclear Projects) Johnson Service GroupSenior Geotechnical Engineer (Nuclear Projects)Knoxville, TNConstruction Materials Testing (CMT): Manage Construction Materials Testing and Special Inspection projects from proposal through project closeout, ensuring quality, profitability, schedule, and client satisfaction. Project Management: Manage geotechnical engineering projects from proposal through final deliverable, ensuring client satisfaction, quality, schedule, and profitability.
Nuclear Asset Plan Review Specialist (TVA Public Utilities) Johnson Service GroupNuclear Asset Plan Review Specialist (TVA Public Utilities)Chattanooga, TNThe Reviewer of Nuclear Asset Plans (NAPs) plays a critical role in ensuring the integrity, accuracy, and completeness of asset planning documents that support TVA’s nuclear fleet in achieving 80–100 years of commercial operation. Johnson Service Group (JSG) is a Tier 1 vendor for the Tennessee Valley Authority (TVA) and we are recruiting for an experienced, Nuclear Asset Plan Review Specialist , for a 12-month contract assignment supporting TVA’s nuclear fleet.
Nuclear Quality Engineer-Kiewit Nuclear Solutions-Multiple Locations Kiewit CorpNuclear Quality Engineer-Kiewit Nuclear Solutions-Multiple LocationsOak Ridge, TN$112,000–$117,000 / yearOur staff collaborates with Kiewit's vast internal network of resources that span heavy civil and infrastructure, vertical and commercial buildings, industrial, as well our oil and gas and power generation markets, to drive safe and cost-effective solutions that achieve client expectations and further Kiewit's core values of People, Integrity, Excellence, and Stewardship. We offer our fulltime staff employees a comprehensive benefits package that's among the best in our industry, including top-tier medical, dental and vision plans covering eligible employees and dependents, voluntary wellness and employee assistance programs, life insurance, disability, retirement plans with matching, and generous paid time off.
Mechanical Engineer - Kiewit Nuclear Solutions Kiewit CorpMechanical Engineer - Kiewit Nuclear SolutionsOak Ridge, TNOur staff collaborates with Kiewit's vast internal network of resources that span heavy civil and infrastructure, vertical and commercial buildings, industrial, as well our oil and gas and power generation markets, to drive safe and cost-effective solutions that achieve client expectations and further Kiewit's core values of People, Integrity, Excellence, and Stewardship. We offer our fulltime staff employees a comprehensive benefits package that's among the best in our industry, including top-tier medical, dental and vision plans covering eligible employees and dependents, voluntary wellness and employee assistance programs, life insurance, disability, retirement plans with matching, and generous paid time off.
Instrumentation & Controls (I&C) Engineer -Kiewit Nuclear Solutions-IL, KS, TN, TX Kiewit CorpInstrumentation & Controls (I&C) Engineer -Kiewit Nuclear Solutions-IL, KS, TN, TXKnoxville, TN$127,000–$133,000 / yearOur staff collaborates with Kiewit's vast internal network of resources that span heavy civil and infrastructure, vertical and commercial buildings, industrial, as well our oil and gas and power generation markets, to drive safe and cost-effective solutions that achieve client expectations and further Kiewit's core values of People, Integrity, Excellence, and Stewardship. Our staff leads and collaborates with Kiewit's module fabrication and construction teams to approach construction-driven engineering with a focus on safe, cost effective, and innovative designs that achieve client expectations and further Kiewit's legacy of excellence.
Nuclear Engineer - Conops / Readiness Global Engineering & Technology, Inc. (GET)Nuclear Engineer - Conops / ReadinessOak Ridge, TN$137,500–$160,000 / yearDOE O 425.1 VERIFICATION OF READINESS TO START UP OR RESTART NUCLEAR FACILITIES - Thorough knowledge of the requirements for verifying readiness for startup of new hazard category 1, 2, and 3 nuclear facilities, activities, and operations, and for the restart of existing hazard category 1, 2, and 3 nuclear facilities, activities, and operations that have been shut down. Global Engineering & Technology (GET) is seeking a highly qualified engineer with National Nuclear Security Administration (NNSA) experience for the position of ConOps/Readiness Subject Matter Expert (SME) supporting the Sandia National Laboratories (SNL) Environmental Safety & Health (ES&H) Planning Department.
Kiewit Nuclear Solutions- Electrical Engineer- Lenexa, KS, Houston, TX, Knoxville, TN, Itasca, IL Kiewit CorpKiewit Nuclear Solutions- Electrical Engineer- Lenexa, KS, Houston, TX, Knoxville, TN, Itasca, ILKnoxville, TN$123,000–$129,000 / yearOur staff collaborates with Kiewit's vast internal network of resources that span heavy civil and infrastructure, vertical and commercial buildings, industrial, as well our oil and gas and power generation markets, to drive safe and cost-effective solutions that achieve client expectations and further Kiewit's core values of People, Integrity, Excellence, and Stewardship. Our staff leads and collaborates with Kiewit's module fabrication and construction teams to approach construction-driven engineering with a focus on safe, cost effective, and innovative designs that achieve client expectations and further Kiewit's legacy of excellence.
Senior Mechanical Engineer 1 (Nuclear Plant Analysis) Nuclear Sargent & Lundy LLCSenior Mechanical Engineer 1 (Nuclear Plant Analysis) NuclearChattanooga, TN$84,762–$129,498 / yearIn this role, we expect people to be willing or able to lead others who use modern tools: You are expected to lead others in taking engineering problems from issue to solution by setting expectations for using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs. Leaders in these roles often direct automation and process-improvement work, for example, how teams automate calculations, summarize technical documents, or generate design documentation and guiding when and how AI or agentic AI tools are used while ensuring results are checked.
Nonproliferation Nuclear Engineer Postdoctoral Researcher Oak Ridge National LaboratoryNonproliferation Nuclear Engineer Postdoctoral ResearcherOak Ridge, TNThe NND performs research and development to detect, characterize, and monitor nuclear fuel cycle activities and nuclear explosions; develops concepts, approaches, and technologies to strengthen global security for nuclear and radiological material; and engages with federal agencies to enhance international nonproliferation regimes. Major Duties/Responsibilities: Perform research and development in the areas of nuclear reactor analysis M&S, including some or all the following: steady-state and depletion core analysis, fuel cycle analysis and evaluations, research reactor design and analysis, characterization of isotopic content of nuclear materials, and.
Instrumentation & Controls Engineer 1 (Entry Level) Nuclear Sargent & Lundy LLCInstrumentation & Controls Engineer 1 (Entry Level) NuclearChattanooga, TN$62,998–$90,586 / yearIn this role, we expect people to be willing or able to solve problems using modern tools: You are expected to take engineering problems from issue to solution using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs. Since 1954, we've been a trusted leader in nuclear engineering, design, and licensing, with expertise spanning small modular reactors (SMRs), advanced reactor technology (ART), and first-of-a-kind commercial reactor restart projects.