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Nuclear Facilities Mechanical Engineer

Job in Los Alamos, Los Alamos County, New Mexico, 87545, USA
Listing for: Los Alamos National Security LLC
Full Time position
Listed on 2025-12-16
Job specializations:
  • Engineering
    Mechanical Engineer, Engineering Design & Technologists, Environmental Engineer, Energy Engineer
Salary/Wage Range or Industry Benchmark: 150300 - 260800 USD Yearly USD 150300.00 260800.00 YEAR
Job Description & How to Apply Below
Position: Nuclear Facilities Mechanical Engineer 3/4

What You Will Do

The Engineering Services Division of Los Alamos National Laboratory develops, maintains, and applies a diverse set of engineering capabilities to provide innovative engineering solutions that enable the Laboratory's scientific and national security mission. This position is within the Engineering Services Weapons Project Delivery group (ES-WPD). ES Groups are responsible for implementing the Conduct of Engineering (COE) program at Los Alamos National Laboratory in support of systems, structure and component modifications and new installations.

This position supports nuclear, accelerator or non‑nuclear facilities across 38 square miles of the Laboratory and promotes a workplace culture centered on mutual respect and inclusivity.

Note:

This position will be filled at either the Nuclear Facilities Engineer 3 or Nuclear Facilities Engineer 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.

Nuclear Facilities Mechanical Engineer 3 ($125,200 - $211,300)

As a nuclear facilities mechanical design engineer, you will concurrently work on multiple design teams shaping LANL's facilities and infrastructure to serve the needs of a growing and changing Laboratory. Your teams will provide engineering consulting services typical of any or all project phases: programming; scoping; design; construction; commissioning; operation.

The level 3 role includes the following job duties:

  • Assess condition of existing facilities and infrastructure systems, including nuclear (Haz. Cat
    2) and accelerator facilities
  • Generate written recommendations
  • Expertly apply engineering judgement to engineering challenges
  • Develop design scopes
  • Estimate design efforts
  • Interface and coordinate with project stakeholders
  • Produce Construction Contract Documents
  • Adhere to LANL's Engineering Standards, Conduct of Engineering, prevailing codes and standards
  • Provide reviews of outside A/E designs
  • Review construction submittals, provide RFI responses and generate Document revisions
  • Mentor junior design personnel
  • Ensure integration of green initiatives on all projects
  • Ensure timely engagement of third‑party resources such as Sustainability and Commissioning
  • Foster timely coordination between all design disciplines
  • Support organizational initiatives for improvements of design and business practices
Nuclear Facilities Mechanical Engineer 4 ($150,300 - $260,800)

In addition to duties listed above, the level 4 role includes the following job duties:

  • Identifies and/or leads activities within mechanical engineering in support of facility design, operation and maintenance
  • Make visionary organizational contributions regarding design and business practices
  • Recognized as a coordinating figure and subject‑matter‑expert (SME), helping to ensure designs are code‑compliant and meet customer needs
  • Use broad and/or unique knowledge and skills to contribute to improvement of LANL's Engineering Standards
  • Use independent and wide latitude judgment in determining course of action to accomplish objectives
  • Facilitate technical growth of the mechanical design team
  • Assist Team Lead with work planning, staffing projections and hiring
What You Need Minimum

Job Requirements Nuclear Facilities Mechanical Engineer 3
  • Demonstrated broad‑based, engineering experience with projects involving mechanical design for new facilities and facility modifications, including nuclear or hazardous (rad) facilities
  • Minimum 6 years working experience with engineering principle of operation of both mechanical and plumbing building systems
  • At least 6 years of practical experience in design and principle of operation of building automation systems
  • Minimum 6 years of experience in application of building codes, standards and green initiatives related to facilities design
  • Minimum 6 years working experience in preparing calculations, application of engineering methods, and application of technology aided engineering tools to facility and operations‑based engineering challenges
  • Demonstrate ability to support construction execution, including timely review of submittals, requests for information,…
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