Creative Energy. Supercharged with Science.

Accelerate your career with a new role at the nation's newest national laboratory. Here you can be part of a team exploring the building blocks of matter and lay the ground work for scientific discoveries that will reshape our understanding of the atomic nucleus. Join a community with a common purpose of solving the most challenging scientific and engineering problems of our time.


Title Job ID Category Date Posted
Magnet Group Staff Engineer 13370 Engineering
Electrical Engineer (Sustainability) 13364 Engineering
Business IT Portfolio Manager 13374 Computer
CAD Administrator I 13328 Engineering
Sr. Contracts Counsel 13341
Hall D - Post Doctoral Fellow 13258 Science
Electronics Engineer II - EIC 13335 Engineering
Project Services and Support Office Manager 13330 Management
Hall A Technologist/Design Drafter 13285 Engineering
High Throughput Computing (HTC) Hardware Engineer 13197 Computer
Mechanical Engineer III 13140 Engineering
Target Group Technician 13276 Misc./Trades
ES&H Department Head 13338 Engineering
Experimental Nuclear Physics Nathan Isgur Fellowship 13282 Science
DC Power Systems Electrical Engineer 13371 Engineering
HPDF Project Director 13373 Computer
Finance Business Manager 13365 Accounting
Sr. Designer 13353 Design
Data Scientist Postdoc 13342 Science
Lead Magnet Measurement Engineer 13366 Engineering
RadCon Manager 13337 Environmental Safety
IT Project Manager 13340 Clerical/Admin
Senior Vacuum Scientist 13187 Science
Mechanical Technician II 13361 Engineering
Facilities Master HVAC Technician 13367 Misc./Trades
Accelerator Operator 13291 Technology
CIS Postdoctoral Fellow 13102 Science
Hall D Electro-Mechanical Technician 13138 Misc./Trades
Hall C Mechanical Designer II 13307 Misc./Trades
Sr. Human Resources Generalist and Compliance Officer 13379 Human Resources
Deputy CNI Manager 13378 Computer
Storage Solutions Architect 13238 Computer
Mechanical Designer 13354 Design
Hall D Electronics Technician 13334 Misc./Trades
Data Center Operations Manager 13327 Engineering
Project Controls Analyst 13302 Clerical/Admin
Hall D Mechanical Technician 13356 Misc./Trades
Conventional Facilities Construction Manager 13377 Engineering
Geant4 Developer 13214 Computer
ES&H Program Manager for Capital Assets 13332 Environmental Safety
Hall C Mechanical Engineer 13355 Engineering
ES&H Inspection Program Lead 13323 Environmental Safety

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.

Welcome from Stuart Henderson, Lab Director
Why choose Jefferson Lab
    Middle School Science Bowl competitors huddle together to brainstorm the answer.
    Local teachers share ideas for a classroom activity with other teachers during Teacher Night.
    Two young learners hold up a model of the atom during Deaf Science Camp.
    Staff Scientist Douglas Higinbotham snaps a selfie with some of the postdoc students he is mentoring.

At Jefferson Lab we believe in giving back to our community and encouraging the next generation of scientists and engineers. Our staff reaches out to students to advance awareness and appreciation of the range of research carried out within the DOE national laboratory system, to increase interest in STEM careers for women and minorities, and to encourage everyone to become a part of the next-generation STEM workforce. We are recognized for our innovative programs like:

  • 1,500 students from 15 Title I schools engage in the Becoming Enthusiastic About Math and Science (BEAMS) program at the lab each school year.

  • 60 teachers are enrolled in the Jefferson Science Associates Activities for Teachers (JSAT) program at the lab inspiring 9,000 students annually.

  • 24 high school students have internships and 34 college students have mentorships at the lab.


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Meet our people
  • Shawn Frierson - CEBAF Operability Manager

    CEBAF Operability Manager maintains a complicated relationship with advanced technology

    Shawn Frierson knows how to use technology to help his team patch things up and keep them running— and the more than 1,800 nuclear physicists who come to the lab to conduct their research depend on him to be exacting and efficient. The former high school physics teacher has spent 16 years on the job refining his knowledge of the lab’s machinery and corresponding technologies, yet he still says the most important tools available to him are a solid understanding of fundamental concepts and his “rudimentary” scientific calculator.

    Currently, Frierson is the Operability Manager for the Continuous Electron Beam Accelerator Facility (CEBAF). CEBAF is a DOE Office of Science user facility. As a keystone of the lab, CEBAF comprises a major portion of the facility’s annual operating budget and is used by nuclear physicists from 39 countries and 324 institutions. CEBAF is located 25 feet underground inside a ten-foot-tall, track-shaped tunnel that is one kilometer around.

    In short: Frierson is at the helm of that responsibility for maintaining this massive facility with millions of individual parts, components and systems.

    “We use CEBAF to speed up electrons within a beam that travels around our facility at close to the speed of light,” Frierson explained. “We send beams to our four experimental halls—Halls A, B, C and D.”

    Once an electron is fired, it will travel around the track up to five and one-half times in about 22 millionths of a second before hitting the nuclei inside a target. Targets may be any element, such as hydrogen or lead, in any state of matter—solid, liquid or gas. The type of target is dictated by the experiment being conducted. Researchers then use a variety of detectors to track, record and observe the struck particles.

    Undisturbed CEBAF runtime is a high-value commodity

    Frierson understands that nuclear physicists may wait years to run an experiment using CEBAF. He says his ultimate goal is to keep CEBAF running smoothly during the full planned run cycle.

    “Right now, we run about 33 weeks out of the year, 24/7,” he said. “We have teams working in eight-hour shifts around the clock during that time to monitor all systems and troubleshoot issues that arise.”

    To minimize downtime during an experiment, Frierson relies on in-system monitoring tools that relay real-time data to an array of computer applications that help track the health of CEBAF.

    “With all of the wear and tear on CEBAF during our run cycles, sometimes something will break that can cause our program to grind to a halt,” he explained. “At that time, you’re getting folks together, and you’re pulling diagnostic data from your systems to figure out how to fix it.”

    This is where Frierson’s applications help to efficiently pinpoint the source of a problem.

    “Our monitoring systems take data from all aspects of the machine during an experiment,” Frierson said. “For instance, while running this electron beam for 24 hours, there are times where a component may act up, and the electron beam could trip off. Maybe the component misbehaves because of the beam, which should be in our vacuum-sealed pipes, gets disturbed by air molecules. Or, it could be that a magnet misbehaves and mis-steers the beam.”

    Frierson uses this software not only to monitor real-time events, but also to track activities affecting various components of CEBAF.

    “We use that data to build charts and graphs that we then use to predict what issues may come up. With that knowledge, I can make recommendations regarding aspects of the system that may need attention during scheduled downtimes. I also use those reports to inform the groups about their equipment,” he said.

    Understanding fundamental mathematical concepts is “best tool”

    While Frierson relies heavily on technology with built-in mathematical formulas to be exacting in his work, there was a time when Frierson shunned even the simplest of tools in favor of pen, paper and brain power. Even with access to advanced technology, Frierson explained that he often prefers cranking out calculations by hand.

    “Most of the calculations that I have to do are on paper, and I may throw a small calculation into my calculator,” he said.

    Frierson’s preference for applying simple tools to his deep understanding of a concept came about when he was young.

    “When I was in high school, I was taking algebra two and trigonometry and we were required to have one of those big, complicated calculators,” Frierson remembered. “My chemistry teacher asked me what I was doing with the massive graphing calculator, and he pulled out a more rudimentary calculator that he used for chemistry. I learned that if you understand the fundamentals, then you understand what the computer would be doing, and you don’t need it.”

    Frierson learned, too, that using a graphing calculator can make it difficult to identify errors.

    “When you write everything out, you can easily find errors and tell the story of how you got your answer,” he explained. “When I got into physics, it was the same thing. Most of that work that you’re going to be doing is going to be on paper.”

    Frierson used these simple tools to earn a bachelor’s degree in physics from Old Dominion University, followed by a master’s degree in physics from the University of Oklahoma. He later also earned a master’s degree in optical engineering from Norfolk State University.

    Before coming to Jefferson Lab, he said he taught “some of the best and brightest students in the area” at the Math and Science Academy at Ocean Lakes High School in Virginia Beach using mathematical fundamentals, pen, paper and that rudimentary calculator.

    “I thought teaching was my calling before I came to the lab,” Frierson says. “I taught my students that your greatest tool is your understanding of the concepts. External to that, you’re talking paper, pencil and a simple calculator.”

    For Frierson, that continues to hold true even as the Operability Manager of one of the world’s most advanced scientific facilities.

    By Carrie Rogers

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The Jefferson Lab campus is located in southeastern Virginia amidst a vibrant and growing technology community with deep historical roots that date back to the founding of our nation. Staff members can live on or near the waterways of the Chesapeake Bay region or find peace in the deeply wooded coastal plain. You will have easy access to nearby beaches, mountains, and all major metropolitan centers along the United States east coast.

To learn more about the region and its museums, wineries, parks, zoos and more, visit the Virginia tourism page, Virginia is for Lovers

To learn more about life at Jefferson Lab, click here.


We support our inventors! The lab provides resources to employees for the development of patented technology -- with over 180 awarded to date! Those looking to obtain patent coverage for their newly developed technologies and inventions while working at the lab are supported and mentored by technology experts, from its discovery to its applied commercialization, including opportunities for monetary awards and royalty sharing. Learn more about our patents and technologies here.

  • Jianwei Qiu
    Jianwei Qiu
    Associate Director For Theoretical And Computational Physics

    "My own research enables me to better lead the Theory Center, to lead our collaboration, to provide good guidance to our junior researchers on the team, and to provide valuable input to the advisory and review committees that I serve"

  • Pashupati Dhakal
    Pashupati Dhakal
    Accelerator Operations

    "Not every day is the same day. Working in research and development, it’s not a one person job."

  • Welding Program Manager
    Jenord Alston
    Welding Program Manager

    "Everybody in the chain is working towards the same goal: to ensure that everything is built safe and to the code specifications"

  • Jian-Ping Chen
    Jian-Ping Chen
    Senior Staff Scientist

    “Every time we solve problems, we contribute. It’s exciting times for new results and discoveries.”

  • Kim Edwards
    Kim Edwards
    IT Division/Information Resource

    "When I’m 95 years old, I hope I will be one of those people who worked in the background to affect other people’s lives for the better."

Jefferson Science Associates, LLC manages and operates the Thomas Jefferson National Accelerator Facility. Jefferson Science Associates/Jefferson Lab is an Equal Opportunity and Affirmative Action 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.

If you need a reasonable accommodation for any part of the employment process, please send an e-mail to recruiting or call (757) 269-7100 between 8 am – 5 pm EST to provide the nature of your request.

"Proud V3-Certified Company"

A Proud V3-Certified Company
JSA/Jefferson Lab values the skills, experience and expertise veterans can offer due to the myriad of experiences, skill sets and knowledge service members achieve during their years of service. The organization is committed to recruiting, hiring, training and retaining veterans, and its ongoing efforts has earned JSA/Jefferson Lab the Virginia Values Veterans (V3) certification, awarded by the Commonwealth of Virginia.