Mechanical Design Engineer Senior Specialist
Listed on 2026-04-17
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Engineering
Mechanical Engineer, Environmental Engineer, Engineering Design & Technologists
Location: Pantex Plant, Amarillo, TX
Job Title: Mechanical Design Engineer Senior Specialist
Career Level: Senior Specialist
Organization: Projects Engineering )
Job Specialty: Core Engineering
What You’ll DoAs a design engineer, the candidate will be responsible for developing high quality detailed design packages, providing engineering procurement and field technical support to implement those designs, and providing expertise for troubleshooting and technical assessments of plant systems. In this senior role, the candidate will also be responsible for mentoring early career engineers and providing reviews and input into their designs.
Design involves the preparation of conceptual engineering deliverables such as cost‑estimating bills of material and man‑hour estimates, statements of work, design criteria, and title II engineering deliverables including preparation of calculations and analyses, construction specifications & drawings, and equipment specifications. Candidate must effectively and cooperatively work as a team member of an integrated project team, or as a technical lead for a multi‑discipline task and will routinely provide input to system engineers and other plant customers.
Design engineers routinely perform walk‑downs in the existing plant facilities in order to generate design documents and provide field support to craft personnel.
The mechanical piping/ HVAC engineer shall be responsible for interpreting, organizing, and executing assignments and engineering design for process piping, utility piping systems, high efficiency particulate air (HEPA) filtration, exhaust systems, dehumidification, and air conditioning in support of nuclear and non‑nuclear projects at Pantex. A strong candidate for the piping/HVAC Engineer position should have experience with design in systems such as potable water and fire‑protection supply systems, gases, acid and caustic fluids, brines, cryogenics, steam and condensate, hot and chilled water systems, chillers, boilers, cooling towers, and vacuum systems as well as design of duct systems, ventilation/exhaust systems, and the basic installation of mechanical HVAC equipment.
Additional experience in performing computer hydraulic (steady‑state and transient) analysis, computer pipe stress analysis, and support selection/design is desired.
- Meaningful work and unique opportunities to support missions vital to national and global security
- Top‑notch, dedicated colleagues
- Generous pay and benefits with a stable organization
- Career advancement and professional development programs
- Work‑life balance fostered through flexible work options and wellness initiatives
Job Requirements
- Bachelor of Science in engineering/science discipline:
Minimum 7 years of relevant experience. Normally requires a minimum of 7 years of relevant experience, with typical engineering/science experience ranging from 10 to 15 years. - OR Master of Science in an engineering/science discipline:
Minimum 5 years of relevant experience. - OR PhD in an engineering/science discipline:
Minimum 2 years relevant experience.
- In addition, the applicant must meet the requirements of DOE O 426.2 (i.e., Baccalaureate in engineering or related science, 2 years job‑related and at least 1 year nuclear experience, or a DOE O 426.2 alternative). DOE 426.2 experience requirements can be satisfied following employment. In the interim, newly hired personnel will not be assigned duties that could impact the safety basis of nuclear facilities.
( O 426.2)
Job Requirements
- Bachelor's degree in mechanical engineering or a related field from an Accreditation Board for Engineering and Technology (ABET) accredited program in the United States or designated equivalents thru ABET Mutual Recognition Agreements (MRA)
- A minimum Grade Point Average (GPA) is preferred for up to four years post‑graduation, confirmed by transcript at the time of offer. Beyond four years from graduation, relevant experience will supersede GPA in hiring considerations.
- Bachelor’s degree with a minimum 3.0/4.0 cumulative GPA
- Master’s degree with a minimum 3.3/4.0…
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