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Cryogenic Mechanical Engineer
Job ID #: 12287 Location: Newport News, VA
Functional Area: Engineering Division: Engineering Division
Position Type: Regular Education Required: Bachelors Degree
Experience Required: 10+ years Relocation Provided: Yes

As a matter of corporate policy, all JSA employees are required to be vaccinated against COVID-19. All successful hires will be required to provide COVID-19 vaccination verification as a condition of employment, subject to limited legally recognized exemptions to the COVID-19 vaccination.

Posting Date: 03/02/22
Salary Range: $83,300 - $131,700 (SE II)
                         $107,400 - $169,600 (SE III)
Work Location Type: Dedicated On-site (100% working on-site)

Come join our team at Jefferson Lab, where great minds matter. 

What your job will be like: 

At the Staff Engineer II level, this engineer works under the general guidance of senior engineering staff members to provide general mechanical engineering support for the design of elements of small to large scale 2 Kelvin and 4 Kelvin helium refrigeration/liquefaction systems.  

At the Staff Engineer III level, this engineer is engaged in initiating, designing, developing, executing, and implementing mechanical engineering for the elements of small to large scale 2 Kelvin and 4 Kelvin helium refrigeration/liquefaction systems.  

At both levels, the engineer will be required to give effective presentations to various audiences, write convincing proposals and reports with all necessary backup material, and defend the design at engineering design reviews or safety reviews. 

In this role you will: 


  • define and perform analysis and calculations in thermal design, fluid mechanics design and structural design using hand calculations, spreadsheets, and finite element analysis (FEA) software
  • produce, organize, and store documentation of these designs.  Additionally, 3D computer aided design (CAD) will be used for component and assembly design as a precursor to analyses and fabrication
  • provide engineering analyses for projects from conception through design, fabrication, assembly and commissioning for complex engineered systems
  • work as part of a team on large-scale projects while independently determine their approach to assigned tasks
  • work with engineers and physicists to develop specifications for systems designs


  • define specifications for systems to be designed
  • remain abreast of and consult others on technical advancements
  • provide technical leadership of staff, technicians and other engineers on large-scale, complex projects
  • apply advanced engineering and scientific principles to the evaluation and solution of technical problems
  • lead the engineering project efforts from conception through design, fabrication, assembly and commissioning
  • identify and routinely use the most effective, cost efficient and best practices to execute processes while continually evaluate their effectiveness and appropriateness




Qualifications We Require:


SE II/SE III - Bachelor’s Degree in mechanical engineering  from an accredited university


SE II - 4 years’ relevant experience

SE III - 10 years’ relevant experience

Knowledge, Skills, and Abilities:

  • Able to effectively train people outside her/his work group. 
  • Able to give effective presentations to critical/high level customers and effectively represent work group on review panels and cross-organizational teams.

Qualifications We Desire:


Master's Degree is a plus


  • experience with industrial equipment or piping systems
  • background in process piping, pressure vessels, refrigeration systems, or process plants is a plus


  • experience with process piping and the design of unfired pressure vessel construction
  • background in the distribution of cryogenic fluids, refrigerators and supporting utilities is a plus
  • experience in process plants and industrial equipment is a plus

About Jefferson Lab 

Join a community with a common purpose of solving the most challenging scientific and engineering problems of our time.  The Jefferson Lab campus is located in southeastern Virginia amidst a vibrant and growing technology community.

A career at Jefferson Lab is more than a job. You will be part of “big science” and work alongside top scientists and engineers from around the world unlocking the secrets of our visible universe.   Managed by Jefferson Science Associates, LLC; Thomas Jefferson National Accelerator Facility is entering an exciting period of mission growth and is seeking new team members ready to apply their skills and passion to have an impact.  You could call it work, or you could call it a mission. We call it a challenge. We do things that will change the world.


Total Rewards at Jefferson Lab 

At Jefferson Lab, we believe that a comprehensive employee benefits program is an important and meaningful part of the compensation employees receive. Our benefits program includes, but is not limited to: 

  • Medical, Dental, and Vision Care Plans 
  • Flexible Spending Accounts 
  • Paid Time-off and Leave Programs (Paid Parental, vacation, holidays, and sick leave)
  • 401(k) Plan – 9% Lab Contribution; 100% vested 
  • Flexible Work Arrangements (Hybrid & Alternate Work Schedules available) 
  • Tuition Assistance, Training and Professional Development Programs 
  • Live near the waterways of the Chesapeake Bay region with access to nearby beaches, mountains, and all major metropolitan centers on the East Coast


• Ability to perform complex and/or varied tasks
• Ability to understand complex problems and to collaborate and explore and implement alternative solutions
• Ability to analyze and interpret complex data and systems and develop models
• Capable of analytic and deductive reasoning

• Ability to traverse across various locations on the laboratory site and access work areas
• Ability to stoop, bend over and climb ladders
• Ability to carry up to 40 lbs.
• Ability to access and work in confined spaces
• Ability to work on a computer for extended periods
• Visual capabilities to use computer workstations, read drawings and documents, make field observations, and see safety alarms
• Auditory capabilities to hear safety alarms

Jefferson Science Associates, LLC (JSA) manages and operates the Thomas Jefferson National Accelerator Facility (Jefferson Lab). JSA is an Equal Opportunity Employer and does not discriminate in hiring or employment on the basis of race, color, religion, ethnicity, sex, sexual orientation, gender identity, national origin, ancestry, age, disability, or veteran status or on any other basis prohibited by federal, state, or local law. As part of the JSA’s equal employment opportunity policy, we also take affirmative action as called for by applicable laws and Executive Orders to ensure that minority group individuals, females, disabled veterans, recently separated veterans, other protected veterans, Armed Forces, and qualified disabled persons are introduced into our workforce and considered for promotional opportunities.

JSA is committed to providing reasonable accommodations for persons with disabilities (unless doing so will result in an undue hardship). If you need a reasonable accommodation for any part of the employment process, please send an e-mail to or call (757) 269-7598 to provide the nature of your request. Reasonable accommodations are considered on a case-by-case basis.

Employment with JSA is conditional upon DOE approval if at any time during your employment you are participating in a Foreign Government Talent Recruitment Program or Affiliated activity. Generally, such programs/activities include any foreign-state-sponsored attempt to acquire U.S.-funded scientific research through programs run or funded by the government that target scientists, engineers, students, academics, researchers, and entrepreneurs of all nationalities working or educated in the United States. This includes positions or appointments, both domestic and foreign, titled academic, professional, or institutional appointments whether or not remuneration is received and whether full-time, part-time or voluntary.

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