Nuclear Facilities Mechanical Engineer 3/4

Share Salary Not Available Position range in Northern Region $74k - $136k Per Year Nuclear Facilities Mechanical Engineer 3/4 Los Alamos National Laboratory

Occupation:

Mechanical Engineers

Location:

Los Alamos, NM - 87544 Positions available: 1 Job #:

IRC141181

Source:

Los Alamos National Laboratory | NLX

Posted:

04/10/2026

Web Site:

www.lanl.gov

Job Type:

Full Time (30 Hours or More) Job Requirements and Properties Help for Job Requirements and Properties. Opens a new window. Work Onsite Full Time Schedule Full Time Job Description Help for Job Description. Opens a new window. 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 ($128,000 - $215,900) 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 ($153,600 - $266,500) 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 Additional Information Help for Additional Information.

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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 buildings 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, design changes, aid in non-conformance issues, validation of commissioning documentation and produce accurate as-built documents
• Demonstrated ability to mentor early career engineers
• Demonstrated advanced knowledge and ability to articulate concepts through various oral and written communication media, using a diverse range of technical and business acumen Nuclear Facilities Mechanical Engineer 4 In addition to the requirements outlined above, qualification at the higher level requires:
• Minimum 12 years of experience leading a design team and/or organization
• Minimum 12 years of expertise in industry, regulatory, or Department of Energy/National Nuclear Security Administration (DOE/NNSA) complex codes, standards, and criteria pertinent to your engineering discipline
• Minimum of 12 years of experience in engineering work planning, budgeting, and design coordination.
• Demonstrated broad and/or unique expert knowledge of engineering systems and calculations, applications of engineering methods, and application technology aided engineering tools to conventional and non-conventional facility and operations-based engineering problems Education/Experience for Nuclear Facilities Mechanical Engineer 3: Position requires a Bachelor's Degree in Engineering and a minimum of 6 years of practical work experience necessary to perform the responsibilities outlined above, as well as relevant hazardous and/or rad experience.

• Advanced engineering or technical degree is desirable
• Current registration as a Professional Engineer (PE) is desirable Education/Experience for Nuclear Facilities Mechanical Engineer 4: Position requires a Bachelor's Degree in Engineering and a minimum of 12 years of practical work experience necessary to perform the responsibilities outlined above, as well as relevant hazardous and/or rad experience.
• Advanced engineering or technical degree is desirable
• Current registration as a Professional Engineer (PE) is desirable This position is subject to 426.

2A, Personnel Selection, Training, and Qualification Requirements for DOE Nuclear Facilities. The DOE Order establishes entry-level requirements to ensure employees in the positions can successfully perform the requirements of the job. The education/experience requirements for this position include a Bachelor's of Science, 2 years of job-related experience, and 1 year of nuclear experience.

Desired Qualifications:

• For level 3:

Current EIT Certification (any US State)

• For level 4: Current NCEES Professional Engineering License in Mechanical Engineering (any US State)
• Professional experience with DOE and LANL Engineering Standards and Conduct of Engineering principles and procedures
• Professional experience in design and principle of operation of infrastructure systems
• National Code Committee participation

Work Location:

The work location for this position is onsite and located in Los Alamos, NM. All work locations are at the discretion of management.

Position Commitment:

Regular appointment emp Visit the Employer site for more details Help for Employer Information. Opens a new window. Los Alamos National Laboratory Social Links Connect with Los Alamos National Laboratory Other Local Jobs from Los Alamos National Laboratory Help for Other Local Jobs from. Opens a new window. Change to Grid view Pause Carousel Previous Slide Next Slide Slide 1 Slide 2 Slide 3 Engineering Solutions Architect (Solutions Architect 3/4) Los Alamos National Laboratory Los Alamos, NM Computer Systems Engineers/Architects Regular | $117,200.00-$195,400.00 Year Corporate - Today What You Will Do Come join the best and brightest minds in the world at one of the most innovative and creative multidisciplinary research institutions engaged in strategic science on behalf of national security. The work we do at Los Alamos National Laboratory (LANL) matters to our country and the world. The Smart Factory & Digital Transformation Group is seeking a solutions architect to support standardization of process and data usage in support of LANL's production mission. This position will be focused on the systems that directly support engineering work and the interfaces governing those systems connections with other business solutions. The solutions architect will move between solutions as each gets stood up and help to develop the overall picture of IT and business process needed to support our mission. Because of this, the positions work scope may be understood as a blend of solution and enterprise architecture.

Key Responsibilities:

• Architect and maintain the engineering domain digital thread framework, including cross-domain model policies, UAF-based architecture model, information object catalogue, and implementation requirements.

Expected major domain systems are requirements management, product lifecycle management, simulation data management, long term records management, MBSE connectors, and their interfaces with other business systems.

• Drive tool selection and validation by partnering with production and infrastructure teams to ensure solutions enhance production execution.
• Advance standards adoption by evaluating and implementing relevant industry standards (OSLC, QIF) that deliver value to production operations
• Champion solution adoption by coordinating training and line organization support in using new solutions.
• Drive digital manufacturing transformation by evaluating and implementing emerging technologies (IoT, AI, data analytics, smart systems) to enhance the engineering digital thread, enable data-driven decision-making, and shift engineering focus from manual processes to strategic technical troubleshooting.
• Continuously monitor solution performance and identify opportunities for improvement to better meet the needs of our engineering organizations.
• Collaborate cross-functionally with LANL Design Agency and Nuclear Security Enterprise stakeholders to ensure site-wide alignment and advocate for Nuclear Production needs.

Salary Range:

Solutions Architect 3: $117,200 to $195,400 Solutions Architect 4: $141,500 to $238,300 We value diverse skills and experience, so don't hold back. Your specific qualification could add tremendous value to our team. Our customers come from all different backgrounds, and so do our employees. If you're passionate about what you could accomplish here, we'd love to hear from you. #shiftwork General Requirements (Outer) Skills (Inner) Specialized (Center) 0% Occupation 0% Education 0% Work Experience 0% Location 0% Salary N/A Job Skills N/A Shift N/A Min. Age N/A Drivers Lic. N/A DL Endorsements N/A Typing N/A Security Clearance N/A Language This chart is used to compare your background against this job to help to determine if you would be a good fit for this position. You match 0% of the General Job Requirements. You match 0% of the Skills Required, and you match 0% of the Specialized Job Requirements. End of interactive chart. View Share R D Engineer 3 Los Alamos National Laboratory Los Alamos, NM Computer Systems Engineers/Architects Regular | $128,000.00-$215,900.00 Year Corporate - Today What You Will Do Seeking a strongly self-motivated Mechanical Engineer (R D Engineer 3) to be a member of the AOT-MDE Engineering Team. This team is responsible for a wide variety of accelerator components and systems design such as cooling water, vacuum systems, magnets and beamline diagnostics. Engineers perform design and analysis of these systems, as well as direct the maintenance and improvement projects of the LANSCE accelerator. As an R D Engineer you will also be called upon to support other ongoing work within MDE. This will be design and analysis of structural or thermohydraulic projects, often leading to experimental validation. Knowledge and experience with CAD tools for design and analysis are critical to the work performed at LANSCE. In order to be fully considered for this position provide your resume and detailed cover letter addressing how your experience relates to each of the required and desired skills as applicable. General Requirements (Outer) Skills (Inner) Specialized (Center) 0% Occupation 0% Education 0% Work Experience 0% Location 0% Salary N/A Job Skills N/A Shift N/A Min. Age N/A Drivers Lic. N/A DL Endorsements N/A Typing N/A Security Clearance N/A Language This chart is used to compare your background against this job to help to determine if you would be a good fit for this position. You match 0% of the General Job Requirements. You match 0% of the Skills Required, and you match 0% of the Specialized Job Requirements. End of interactive chart. View Share See all jobs from Los Alamos National Laboratory Location/Work Site Information Help for Location/Work Site Information. Opens a new window. Cost of Living Calculator Help for Cost of Living Calculator. Opens a new window. Compensation and Benefits Help for Compensation and Benefits. Opens a new window. Job Type and Required Hours Help for Job Type and Required Hours. Opens a new window. Work Experience Help for Work Experience. Opens a new window. Education and Training Help for Education and Training. Opens a new window. Skills Required Help for Skills Required. Opens a new window. Specialized Job Requirements Help for Specialized Job Requirements. Opens a new window. Occupation Information for Mechanical Engineers Help for Occupation Information for Mechanical Engineers. Opens a new window. Other Jobs and Employers Help for Jobs Available , opens a new window. Career Ladder Help for Career Ladder. Opens a new window. Personal Requirements Help for Personal Requirements. Opens a new window. Nature of the Work Help for Nature of the Work. Opens a new window. Work Values and Activities Help for Work Values and Activities. Opens a new window. This job was posted at https://www.lanl.gov/ on 04/10/2026 2:51:20 AM. Change Job Search Criteria Print Job Order Opens in new window [ Do you have a comment or concern about this job posting? ]