Commissioning & Start-Up (CSU) Engineer
- Salary
- Not stated
- Level
- Senior
- Work type
- On-site · Oak Ridge
- Visa
- Not stated
Open. First seen 3 October 2026.
The team: Engineering HIRES STEADILY
This role is one of 19 open in Engineering. 3 were posted in the last 30 days and the oldest in February: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
FEA (3 of 19), Creo (2 of 19), PLC (2 of 19), SolidWorks (2 of 19)
OTHER ROLES ON THIS TEAM
- Project Engineer, Nuclear Facilities posted Oct 1
- System Engineer posted Oct 1
- Mechanical Engineer, Piping Design posted Sep 28
- Engineering Process Commissioning Specialist posted Sep 16
- System Engineer (Q- or TS-Cleared Candidates Only) posted Aug 28
- System Engineer posted Aug 28
- Civil Engineer posted Aug 28
- Sr. Facility Safety Engineer posted Aug 28
- Electrical Power Engineer posted Aug 28
- Structural Engineer posted Aug 28
- Mechanical Engineer, Specialty Equipment posted Aug 26
- Mechanical Design Engineer posted Aug 14
- Controls Engineer (Q- or TS-Cleared Candidates Only) posted Aug 14
- Engineering Technologist, Atmospheric Instrumentation posted Jul 16
- I&C Engineer posted Jun 24
- Electrical Engineering Manager, Power & Electronics posted Jun 3
- HVAC Design Engineer (Principal) posted Apr 8
- Structural Engineer posted Feb 18
From the team and dates on GEM Technologies's own job board.
About the role
ABOUT THE ROLE
We are seeking a Commissioning & Start-Up (CSU) 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
- Provide knowledge, expertise, input training, and consultative support for CSU project related activities.
- Participate in testing, planning, turnover coordination, material management, quantities, quality control, and environment safely and health.
- Ensure support of Commissioning and Start-Up (CSU) duties of installation configuration validation and test planning and document development.
- Schedule and assist planning of CSU execution activities including sequence and resource requirements for assigned projects.
- Prepare equipment test records and pre-op testing binders.
- Participate in construction to CSU turnover walkdowns.
- Coordinate with the construction field engineer as required to support component/system turnover.
- Initiate and track punch list development during testing.
- Perform and monitor testing of equipment to assure conformance with requirements and compliance with test procedures.
- Ensure work is undertaken safely and activities are supported to meet schedule and cost.
- Support overtime and days/night shift.
Requirements
- Education & Years of Experience – Bachelor’s Degree in engineering from an Accreditation Board for Engineering and Technology (ABET) accredited program. [Chemistry, Physics, or related]and 5+ years of relevant experience.
- Citizenship – To be considered, you MUST be a United States (U.S.) citizen due to the federal nature of the work.
- Clearance – To be considered, you MUST be able to obtain and maintain a government issued clearance.
- Previous experience of Y-12 procedure, programs and processes.
- Previous experience as a CSU test engineer.
- In depth knowledge of NFPA-70e
- Previous commercial/Department of energy experience, with NQA-1 requirements supporting an operational readiness reviews.
About the Site
The 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. Y-12 supports efforts to reduce nuclear proliferation risk and performs work for other government agencies (energy.gov).
ABOUT GEM
GEM Technologies, Inc. (GEM) is an award-winning federal contractor with more than 30 years of experience providing environmental, construction, facility management, and technical services to federal agencies, state and local governments, and commercial organizations. 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. Some reasons to join GEM are:
- Our philosophy – We believe in the power of effective collaboration and recognize that good partnerships are the building blocks to success.
- Our relationships – Partnering with federal clients, we solve complex problems, exceed expectations, and advance critical missions.
- Our team – We are committed to managing a cohesive workforce and cultivating a supportive workplace for our employees on contracts and in-office.
- Our community involvement – Supporting our communities, we invest time and money in local schools and non-profit organizations.
COMPENSATION AND BENEFITS
GEM’s offered compensation is dependent on candidates’ education, qualifications, and relevant years of experience. To recruit and retain our exceptional staff, we offer the opportunity to elect benefit packages that best suit our employee’s needs; this includes, but is not limited to, a competitive Salary, Medical, Dental and Vision Insurance (including HSA & PPO options), Paid Time Off (PTO), Paid Holidays, Life Insurance, and a matching 401(k) Retirement Plan.
Please Note: With the exception of mandated state requirements, GEM does not publish salary information on external job boards; as such, most ranges listed are estimates made by vendors and not actual salary ranges.
EQUAL OPPORTUNITY EMPLOYER
GEM Technologies, Inc. is an Equal Opportunity/Affirmative Action Employer and does not discriminate on the basis of race, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition, or any other basis protected by law.
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