Jefferson Lab

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: 07/28/2022
Salary Range: $69,600 - $94,800 (T/D 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 Jefferson Lab, the Center for Injectors and Sources (CIS) is responsible for building electrons guns and injectors at our premier accelerator, the Continuous Electron Beam Accelerator Facility (CEBAF), two research accelerators the Upgraded Injector Test Facility (UITF) and Low Energy Research Facility (LERF) and an electron Gun Test Stand (GTS). Our Accelerator division is seeking a Vacuum Systems & Mechanical Assembly Technician. Come and join our team!

In this role you will:

  • Procure raw materials, vacuum equipment (pumps) and components, hardware, etc. This involves requesting quotes and coordinating with procurement and shipment and receiving offices.
  • Coordinate fabrication of parts and components with the lab machine shop and/or with external providers.
  • Q&A fabricated parts against manufacturing drawings.
  • Test fit manufactured parts per assembly drawings. This may involve coordination with Survey and Alignment (S&A) and iteration with ME and the machine shop.
  • Polish and assemble gun electrodes per clean room procedures. This may involve mechanical polishing by hand prior to coordinating the use of the tumbler polisher.
  • Clean gun electrodes and parts following vacuum practices. This will involve coordinating with the production chemical cleaning facilities.
  • Coordinate the vacuum degassing of gun electrodes and gun related parts with the vacuum furnace lab.
  • Coordinate installation of the gun vacuum chamber in a beam line per guidance from CIS coordinator.
  • Assist with vacuum work to establish and characterize gun vacuum conditions.
  • Assist with vacuum baking setup work, and with monitoring baking and vacuum conditions.
  • Assist with gun vacuum characterization after baking and with housekeeping activities in preparation for gun commissioning.

Qualifications We Require:


  • Relevant AS Degree*


  • 7 years of relevant experience*

*Or an equivalent combination of relevant education and experience

Knowledge, Skills, Abilities:

  • Able to provide input to schedule development (identifies conflicts and develops solutions)
  • Knowledge of various hand tools, power tools, precision measurement devices, and safe practices
  • Ability to interpret mechanical drawings of parts and components
  • Understanding of vacuum systems and associated practices
  • Ability to perform mechanical assemblies in an accelerator enclosure environment
  • Ability to obtain and keep current all safety training relative to work activities
  • Ability to interpret and apply work control documents
  • Able to take direction and carry out assignments independently and in cooperation with peers and supervisors
  • Able to understand and carry out instructions, ask questions, and report to supervisor clearly on problems, progress and status
  • Significant latitude in choosing work methods

Qualifications We Desire:

Education and Experience:

  • Experience with compressed gas handling systems
  • Experience with high voltage (more than 1000 volts direct current) power supplies
  • Experience with the use of Windows-based computers and proficiency with Microsoft Word and Excel is desired

Knowledge, Skills, Abilities:

  • Demonstrated skills in ultra-high vacuum systems and practices

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 (Remote & 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

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 employment @ 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.