Mechanical Engineer ( Nuclear Facilities Engineer 3 OR 4)

Navy Seabee Foundation; Los Alamos (NM); On-site; USD 128,000 - 266,500; Full time

Job summary

The Navy Seabee Foundation is seeking a Nuclear Facilities Engineer at level 3 or 4 in the United States. The role focuses on owning mechanical systems, monitoring their health, and collaborating with Operations and Maintenance to troubleshoot and improve performance.

Shift work is required and the position supports essential defense missions. Level 4 adds independence, mentoring, and expert‑level technical leadership.

Qualifications

• Own and maintain assigned mechanical systems.
• Monitor system health and coordinate with Operations, Maintenance, and other groups.
• Troubleshoot and improve your systems to keep performance high.

Responsibilities

• Own your designated mechanical systems and ensure high performance.
• Collaborate with Operations, Maintenance, and other teams to troubleshoot issues.
• Guide system maintenance and improvements for reliability.

Skills

Mechanical systems

System health monitoring

Troubleshooting

Operations collaboration

Job description

What Will You Do

This position will be filled at either the Nuclear Facilities Engineer 3 or 4 level, depending on the skills of the selected candidate. Additional job responsibilities (outlined below) will be assigned if the candidate is hired at the higher level.

Position Levels

• Nuclear Facilities Engineer 3 ($128,000 - $215,900): This role is in the Essential Balance of Plant Group (PFE-EBP), which is part of the Plutonium Facilities Engineering Division. This role directly supports the day‑to‑day operations of the Plutonium Facility, and is essential for mission‑critical activities for National Defense. As a mechanical system engineer in this role, you will own your assigned system(s) and strive to maintain them at high levels of performance. You will monitor system health and work closely with Operations, Maintenance, and other groups to troubleshoot and improve your system(s). The Essential Balance of Plant Group is responsible for about 40 mechanical systems, including cryogenic, compressed gasses, vacuum, circulating water, chemical supply, and more. If you’re a more hands‑on engineer looking for a role where you’re out walking down systems and engaged with their operation and maintenance, this role is for you!
• Nuclear Facilities Engineer 4 ($153,600 - $266,500): In addition to what was outlined at the lower level, at this level you will be expected to work independently, act as lead to other engineers and groups, provide mentoring to less‑experienced peers and colleagues, and bring expert‑level technical expertise to the group.

Shift Work

Shift work is required.