Principal Mechanical Engineer

We have an opening for a licensed Mechanical Engineer who will lead the mechanical design and engineering group. You will also be responsible for preparing engineered design solutions for LLNLs mechanical infrastructure building systems (HVAC piping plumbing and fire protection) building automation and DDC control systems energy management laboratory design and central planttype equipment in support of projects associated with new construction remodeling and modifications of facilities and infrastructure. This position is in the Project Management Office (PMO).

The Project Management Office (PMO) provides LLNL with engineering design estimating construction and project management services. The PMO provides infrastructure services to enable cuttingedge research and development in the areas of defense technologies global security laser science bioscience and more. PMO offers cradle to grave infrastructure services to achieve reliable delivery of completed projects with priority on safety collaboration and a workforce working toward our shared vision.

You will:

• Manage and supervise the mechanical engineering group (currently 3 staff members). This includes performance management assigning work professional development mentoring and recruiting.
• Serve as technical authority exercising independent judgement and initiative in reviewing documents prepared by staff ensuring quality and compliance. Maintain master specifications design standards typical details and design criteria for the mechanical group. Provide solutions to highly unusual and complex issues and problems.
• Lead multiple complex internal mechanical technical/operational projects. Responsible for the development and compliance with technical criteria budgets schedules deliverables and direct the work of mechanical designers and drafters preparing models and drawings in AutoCAD and Revit for projects.
• Prepare designs and engineering studies for conventional mechanical equipment and components in complex building environments supporting highly advanced research activities. Projects include design for the installation of air handling equipment fume hoods boilers chillers DDC control systems pumps and filter systems plumbing fire protection. Also complex mechanical systems in specialized research facilities such as clean rooms high performance computing facilities biosafety labs semiconductor and electronics fabrication labs nonreactor nuclear facilities and laser research facilities.
• Prepare procurement documents for the subcontracting of outside consultant. architectural/engineering (A/E) services to supplement internal engineering capability. Manage the outside A/E contracts including project scopes technical criteria engineering estimates and schedules.
• Partner with mechanical supply vendors to select specify and procure mechanical components utilized in designs.
• Provide guidance and engineering support during construction by reviewing submittals and shop drawings responding to contractor questions evaluating change order requests observing field activities resolving field problems and performing inspections. Support management in attracting and retaining projects funding and organizational staff.
• Provide field engineering services for LLNL maintenance workers and field crews by helping to coordinate the selection procurement and delivery of construction materials resolving field questions and conflicts and performing field observation and inspections.
• Engage with Sr. Management and stakeholders representing the PMO within LLNL as the technical authority for mechanical systems design processes and procedures.
• Perform other duties as assigned.

Qualifications :

• Ability to secure and maintain a U.S. DOE Qlevel security clearance which requires U.S. citizenship.
• Relevant bachelors degree in a technical area or the equivalent combination of education and extensive related experience.
• Professional registration as a Mechanical Engineer.
• At least ten years of mechanical engineering design experience in an architectural/engineering consulting firm. Significant experience in design management including project planning scheduling professional services estimates and adherence to completion dates.
• Experience in a technical leadership role in mechanical design projects with technical analytical and decisionmaking skills with the ability to organize and effectively coordinate multiple and frequently conflicting tasks. Expert verbal and written communication skills to collaborate in a team environment and present technical information to project managers and stakeholders.
• Significant experience and expert knowledge of the professional practice of commercial industrial and laboratory facility mechanical engineering and construction in areas such as HVAC system design piping system analysis and pump selection fire sprinkler system design process piping for various industrial and laboratory gasses and fluids building automation and control systems and LEED/sustainable design practices.
• Significant experience with mechanical system testing and balancing and/or commissioning.
• Significant experience with mechanical engineering design software for building modeling such as heat load and psychometric analysis HVAC system modeling energy management and/or pipe flow analysis.
• Expert Knowledge of California Mechanical and Plumbing Codes Building Energy Efficiency Standards (Title 24) Fire Code (NFPA 1) Standard for the Installation of Sprinkler Systems (NFPA 13) AWWA Standards ASHRAE Standards such as Ventilation and Acceptable Indoor Air Quality (Standard 62.1) and Energy Standard for Buildings Except LowRise Residential Buildings (Standard 90.1).
• Advanced software skills that include AutoCAD and Revit to prepare design drawings and proficiency with Microsoft Office Suite.

Desired Qualifications

• Membership in professional organizations such as ASHRAE ASME etc.
• USGBC LEED AP certification
• Knowledge of applicable DOE Orders and Federal Standards

Additional Information :

#LIHybrid

Position Information

This is a Career Indefinite position open to Lab employees and external candidates.

Why Lawrence Livermore National Laboratory

• Included in 2025 Best Places to Work by Glassdoor!
• Flexible Benefits Package
• 401(k)
• Relocation Assistance
• Education Reimbursement Program
• Flexible schedules (*depending on project needs)
• Our values visit  Clearance

  This position requires a Department of Energy (DOE) Qlevel clearance.  If you are selected we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also all L or Q cleared employees are subject to random drug testing.  Qlevel clearance requires U.S. citizenship. 

  PreEmployment Drug Test

  External applicant(s) selected for this position must pass a postoffer preemployment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor.

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  Remote Work :

  No

  
  

  Employment Type :

  Fulltime