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Mechanical Utilities Systems Engineer

Mid-Senior Level | Full-time
Engineering | livermore, CA | 06/11/2021

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Company Description

Join us and make YOUR mark on the World!

Are you interested in joining some of the brightest talent in the world to strengthen the United States’ security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place.

We are committed to a diverse and equitable workforce with an inclusive culture that values and celebrates the diversity of our people, talents, ideas, experiences, and perspectives. This is essential to innovation and creativity for continued success of the Laboratory’s mission.

Job Description

We have openings for Mechanical Utilities Systems Engineers. You will be responsible for analysis of aging systems and the development of engineering strategy for operational efficiency and modernization of systems.  Additionally, you will be responsible for equipment / system documentation, and the development of process procedures for the operation of the mechanical utilities associated with LLNL’s two sites.  The site’s mechanical utilities consist of over two hundred miles of underground mains and associated equipment.  These utilities consist of domestic water, low conductivity water (condenser water), natural gas, compressed air, demineralized water, sanitary sewer, and associated equipment and controls.  Equipment in these systems include cooling towers, pumps, heat exchangers, compressors, ion exchange plants, RO units, and drives.  This position is in the Mechanical Utilities Division of the Infrastructure Maintenance and Utilities Department and may require working at either or both site 200 in Livermore, California and Site 300 in Tracy, California.

This position will be filled at either level based on knowledge and related experience as assessed by the hiring team. Additional job responsibilities (outlined below) will be assigned if hired at the higher level.

In this role you will 

  • Provide independent engineering support and operational solutions to resolve complex operational, maintenance, refurbishment, and reliability issues, plus perform root cause analysis of equipment and system failures.
  • Perform engineering calculations, pipe sizing, pump head requirement, NPSH, pump sizing / selection, pump horsepower, motor sizing, centrifugal pump performance analysis, mass balance analysis, and energy transfer analysis associated with cooling towers and heat exchangers.
  • Lead multiple complex internal mechanical projects with responsibility for the development and compliance with technical criteria, budgets, schedules, and deliverables, and direct the work of electrical designers and drafters preparing models and drawings prepared in AutoCAD for projects.
  • Responsible for the general oversight and personal commitment to the goals of Integrated Safety Management, Environmental Management, compliance with all Environmental Safety & Health regulations, good business practices, diversity, and equal opportunity.
  • Prepare technical presentations for management, programmatic clients, O&B senior management, and DOE/NNSA Livermore Field Office / Headquarters.  Advise clients regarding system integrity, refurbishment needs, feasibility, manpower requirements, and best operating practices.
  • Prepare detailed Conduct of Operations manuals for site wide mechanical utility systems. Revise as needed when new equipment and methodologies are implemented by field personnel.
  • Participate in design reviews to obtain approvals of project scope and designs.
  • Perform other duties as assigned.

Additional job responsibilities at the TSS.4 level

  • Work under consultative direction leading highly complex internal multi-disciplinary engineering projects as the Project Lead or Design Manager with overall responsibility for developing technical criteria, budgets, schedules, and deliverables.
  • Provide subject matter expertise in the design, maintenance, and operation of centralized   mechanical utilities (domestic water, low conductivity water (centralized condenser water system), natural gas, compressed air, de-mineralized water, and sanitary sewer.
  • Develop and deliver technical presentations to programmatic clients, O&B senior management, and DOE/NNSA Livermore Field Office / Headquarters, plus be able to field any associated questions.


  • Ability to obtain and maintain a U.S. DOE Q-level security clearance which requires U.S. Citizenship    
  • Bachelor’s degree in Mechanical Engineering or Marine engineering or related technical field from an ABET accredited college or equivalent combination of education and significant related experience.
  • Registration as a Professional Engineer in the State of California or registration from another state with the ability to obtain licensure in California.
  • Significant experience and advanced knowledge in the design, maintenance, and operation of centralized mechanical utilities (domestic water, low conductivity water, centralized condenser water system, natural gas, compressed air, demineralized water, and sanitary sewer).
  • Advanced knowledge of P&IDs, process instrumentation, Programmable Logic Controllers (PLC), ladder diagrams, motor control wiring diagram, and Supervisory Control and Data Acquisition (SCADA).
  • Experience in project management, utilizing organizational and advanced critical thinking and decision-making skills with ability to solve complex technical problems, as well as handle multiple highly complex issues in a demanding environment with conflicting priorities, changing deadlines, and frequent interruptions.
  • Significant experience generating correspondence, reports, calculations, and presentations using Microsoft Word, Excel, PowerPoint, and other applicable software, along with experience with AutoCAD in the preparation of working drawings.
  • Experience writing technical construction specifications and detailed operating and maintenance procedures for mechanical utility systems.
  • Advanced verbal and written communication skills necessary to effectively collaborate in a team environment and present and explain technical or operational information and provide advice to management, regulators, reviewers, and stakeholders.

Additional qualifications at the TSS.4 level

  • Subject matter expertise and substantial experience in a mechanical utilities’ environment in an operational support role, exclusive of design work.
  • Significant operational experience with underground utilities.
  • Significant experience forecasting system needs in a multi-year refurbishment environment.
  • Proven ability to build plans based on partial funding in multiple years progressing towards a final vision.

Qualifications We Desire

  • Knowledge of Infrastructure and Operations organization, policy, and procedures.
  • Experience developing, monitoring, and reporting performance metrics.
  • Experience with cathodic protection.

Additional Information

Why Lawrence Livermore National Laboratory?

  • Included in 2021 Best Places to Work by Glassdoor!
  • Work for a premier innovative national Laboratory
  • Comprehensive Benefits Package
  • Flexible schedules (*depending on project needs)
  • Collaborative, creative, inclusive, and fun team environment

Learn more about our company, selection process, position types and security clearances by visiting our Career site

Site 300

Site 300 is an experimental test site operated by LLNL.  Situated on 7,000 acres in rural foothills approximately six miles southwest of downtown Tracy and 15 miles southeast of Livermore, Site 300 hosts approximately 200 employees with expertise in such fields as engineering, chemistry, biology, and environmental restoration. Employees assigned to work at Site 300 may be exposed to the organism that causes San Joaquin Valley Fever (coccidioidomycosis).

Security Clearance

LLNL is a Department of Energy (DOE) and National Nuclear Security Administration (NNSA) Laboratory.  Some positions will require a DOE L or Q clearance (please reference Security Clearance requirement above).  If you are selected and a clearance is required, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. In addition, all L or Q cleared employees are subject to random drug testing.  An L or Q clearance requires U.S. citizenship.  For additional information please see DOE Order 472.2.

Equal Employment Opportunity

LLNL is an affirmative action and equal opportunity employer that values and hires a diverse workforce. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws.

If you need assistance and/or a reasonable accommodation during the application or the recruiting process, please submit a request via our online form

Employee Privacy Notice

The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed through the following link.

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