Mechanical Engineer
Listed on 2026-06-12
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Engineering
Mechanical Engineer, Quality Engineering, Manufacturing Engineer
Overview
Longenecker & Associates (L&A), a Geosyntec Company, is a trusted partner enabling critical missions across the U.S. Department of Energy (DOE) complex for more than 30 years. We contribute to DOE’s nuclear security and environmental remediation enterprise by providing the highest-caliber staff and experts. We are seeking a motivated Mechanical Engineer to contribute to our mission supporting Centrus Energy in Oak Ridge, TN
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Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical and project employees serve our clients from offices across the world. Ranked by ENR as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service.
EssentialDuties And Responsibilities
Reporting directly to the Engineering Manager, the Sr. Mechanical Engineer will be responsible for supporting scopes of work activities associated with components, assemblies, and machines in the Centrifuge Project. Provides support to the Centrifuge Program to accomplish goals and objectives while ensuring compliance to Centrus standards and practices.
- Assist in leading, designing, building, and troubleshooting the following:
- Plant expansion activities
- Large scale heating and cooling systems
- High vacuum 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 approval of engineering packages to be used for fabrication
- Establish procedures for assembly and repair of fabricated components
- Drive process improvement activities for internal activities and external suppliers
- Manage multiple priorities and ensure that deliverables are met within schedule and budget
- Adheres to company policies and procedures with regards to safety, code of conduct, security, and environmental program requirements
- Contribute to cross functional teams including design, engineering, manufacturing, operations, testing, quality and purchasing
- Bachelor’s Degree in Mechanical or Aerospace Engineering required
- Advanced degree in Mechanical or Aerospace Engineering preferred
- At least 3 years of working experience in a Nuclear and/or DOE environment; or equivalent combination of education and experience required
- 3+ years of CAD experience
- Solid Works experience
- CREO experience
- FEA experience
- U.S. Citizenship required due to federal contract security requirements
- Must be able to pass a federal background investigation to secure and maintain DOE Q security clearance
- Ability to perform the essential functions of the job with or without reasonable accommodation
- Health & Safety training, medical monitoring, and client-driven drug and background testing (required)
Provisions regarding marijuana are described in accordance with federal law. Federal contractors must follow Federal drug-free workplace rules, which prohibit marijuana use.
Preferred Qualifications & Location Details- Active Q Clearance
- Project Management experience
- Experience with Centrifuge or HALEU projects
- Work will be performed at the Centrus facility in Oak Ridge, TN
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