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.

System Maintenance will be performed beginning Friday, March 31st at 9:00pm thru Saturday, April 1st at 2:00am. During this time no applications will be accepted.

Title Job ID Category Date Posted
Internal Communications Intern 13131 Public Relations
Quality Engineer 13100 Engineering
Chief Audit Executive 13123 Accounting
Lead Project Risk Analyst 12345 Engineering
Electrical Engineering Student Intern 12337 Engineering
Mechanical Engineer 12479 Engineering
Data Scientist 13122 Computer
Budget Analyst 12526 Clerical/Admin
Hall D Postdoctoral Fellow 13038 Science
Division Staff Scientist 13098 Science
Hall B Postdoctoral Fellow 13078 Science
Postdoctoral Fellow 13108 Science
Process Equipment Engineer 13042 Engineering
Target Group Technician 13106 Misc./Trades
Project Services and Support Office Manager 13006 Management
Data Scientist Postdoc 13116 Computer
Storage Hardware Lead 13005 Computer
Electrical Support Engineer 13085 Engineering
Electrical Engineering Student Intern 12352 Engineering
LDRD urPICOSEC Postdoctoral Fellow 13061 Science
Sr. Mechanical Designer / Mechanical Designer 12508 Engineering
SRF Accelerator Physicist 13103 Science
Magnet Engineer 12504 Engineering
Senior Machinist 13125 Engineering
Postdoctoral Fellow 13030 Science
RF Engineer 13087 Engineering
Physics Mechanical Technician 13099 Misc./Trades
Network Infrastructure Software Developer 13045 Computer
Rotating Machinery Technician 13115 Misc./Trades
Project Controls Analyst 13070 Clerical/Admin
Survey Engineer 13066 Engineering
Safety Engineer II 13093 Environmental Safety
Cryogenics Process Lead 13004 Engineering
Mechanical Designer / Mechanical Drafter 13017 Engineering
HTC Hardware Specialist 13026 Computer
Scientific Computing Infrastructure Developer 13119 Computer
Facilities Master HVAC Technician 13074 Misc./Trades
SRFTM Electronics Technician 13118 Electronics
Project Controls Group Leader 12315 Management
CIS Postdoctoral Fellow 13102 Science
Mechanical Designer - Cryogenics 12500 Engineering

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.


Twitter posts
Meet our people
  • Marc McMullen - Senior Instrumentation Tech

    Electronics Designer enthusiastically contributes to lab’s mission, knowledge pool

    Marc McMullen has come a long way in understanding the work of the lab since he began his career in Hall B as a temporary employee “just pulling electrical cables” in 1996.

    “I started out as your basic-level installation technician,” McMullen remembers. “We were building Hall B—the smallest and newest of the halls back then. I was hired as a temp. I was pulling cables and installing power supplies—and I didn’t know what a lot of it was that we were doing here at the lab. Back then I didn’t think about it.”

    Now, McMullen is a senior instrumentation tech in the Detector Support group (DSG). He develops complex electronics systems for whatever is needed, be it a moisture sensor inside a machine or a functioning circuit board from scratch.

    Once hired full time, McMullen committed himself to figuring out what, exactly, the lab produced.

    “I started to wonder what we’re doing and I got interested in learning what I could do,” he said. “We don’t make things you can buy and hold, so there is no product to point to and say, ‘This is what we do.’”

    To solve this riddle, McMullen turned his efforts toward asking more about the science to try to figure out how he could proactively support it.

    “To get someplace, you have to absorb so much, and you have to have some value, and you want to know that the work that you do on a daily basis is important to the lab. So, I started to ask questions and learn everything I could. Now I’m the old guy who can share what I know—not in life, but at the lab,” McMullen laughs.

    Working with his group, McMullen now helps to support all of the JLab experimental halls on projects of varying durations and complexities.

    “We go beyond the scope of the physics division,” he explains. “We are also supporting the Electron-Ion Collider (EIC) that is being designed for Brookhaven National Laboratory. So, while there are specific spheres that our group covers, we aren’t limited from working on different projects.”

    Finding new challenges

    For McMullen, part of the joy he gets from his work at the lab comes from the opportunity each project gives him to tinker with new challenges while ensuring that each project is able to be completed safely.

    “I wear a lot of hats and I have to do a lot of different things, including serving as the safety leader of the group,” he says.

    As an electronics designer, McMullen is generally called in to advise scientists and their teams early in the process of designing an experiment. From there, McMullen is tasked with finding solutions to make the scientists’ experiments possible.

    “Each project starts out with a concept in someone’s head,” he says. “We meet with the scientists to learn about what they need. From there, there are a few ways to come up with the design for equipment that will do what they need. Sometimes the design is brand new, sometimes it exists and you’re reviewing it for safety and making sure it still works with the equipment we have, and sometimes you’re making modifications to old equipment and designs.”

    Reusing old equipment can save millions of dollars, depending on the equipment, and it is helpful if McMullen and his team find thorough documentation as they begin the process of redesigning it.

    “As a designer, we have to be very good about documenting our work, as well, because it often happens that an experiment can reuse equipment that has already been made or used—and it is helpful to have documentation available for current scientists as well as future scientists who may need to recycle parts.

    “For example, on one project, we wanted to reuse the constant current source board, which is derived from an old circuit board from a previous detector that is so old nobody really knows where the documentation is. We had a board and we didn’t have the documentation so we had to study it carefully and work backwards to create the documentation on how it is put together.”

    From temporary employee to senior designer

    McMullen also admits to finding tremendous value in his position as one of the lab’s longest-standing employees.

    “I’ve learned that, essentially, to get someplace, you have to absorb so much through experience and learning,” he says. “As an employee, you have to add some value to your workplace. You want to know that the work that you do on a daily basis is important to the lab.”

    As the self-described “old guy,” McMullen appreciates the value that his decades of experience bring to the team. Just as he relied on those more experienced engineers, scientists and technicians to help him learn about the lab as he developed his career, McMullen is eager to document and share as much of his work as he can.

    “We do a lot of research and development in our group, and we come up with the latest and greatest advancements,” he says. “I know a lot of the folks at the lab because I work on their experiments. But there’s still some mystery around what our group does. Our team covers all of the halls, but we are not based in the halls. And we are in the physics division, but the scope of our work goes beyond physics.”

    Amrit Yegneswaran is the leader of the 10-person group, which reports to Patrizia Rossi, deputy associate director for the Experimental Nuclear Physics division.

    “Without those two, we wouldn't have the independence to work with so many groups and on so many projects,” says McMullen. “Understanding what our group can do is important to our colleagues. Our leadership is very keen on sharing what we do as a support group to help with the experiments, and the DSG website has been a big focus for us.”

    DSG website as clearinghouse

    “Our website is a hub of information about our group, but it’s not just to who we are as a group, we also need to put information out to tell the story of what we do.”

    McMullen points out that the DSG website features an action photo of someone from the group on nearly every page. The site gives viewers a look “under the hood” of how the electronics systems work at the lab.

    “In the DSG, we like to share action photos online to help get people curious about this work our group does,” McMullen explains. “The photos are meant to make people ask, ‘What’s going on here?’ and they can see in the caption that, ‘Here I am designing a circuit on the constant current source board for Hall A for the proposed SoLid magnet,’ for example.”

    Nearly three decades after first starting his career at the lab, McMullen has finally determined the essence of what it is that the lab produces.

    “Now, after being here all these years, I know that our product at Jefferson lab is smart people. We produce smart people,” he concludes.

    Further Reading
    Visit the Detector Support group (DSG) website
    Search the DSG notes
    Search the DSG talks
    View the DSG photo log

    By Carrie Rogers

Youtube videos

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.

  • Holly Szumila-Vance
    Holly Szumila-Vance
    Staff Scientist

    "Today, we use a lot of those same teamwork traits [learned from the military] on a daily basis as we're all working toward similar goals here at the lab in better understanding nuclei!"

  • Ashley Mitchell
    Ashley Mitchell
    SRF Chemistry Technician

    “Chemistry is the art of science and art; you’re manipulating and creating things. We have lots of different recipes to work with.”

  • 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."

  • 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"

  • Ron Lassiter
    Ron Lassiter
    Mechanical Designer

    “Here at the lab you get to see what you’ve worked on. You can hold it in your hands. It’s rewarding to know that you’ve played a part in helping the machine to be successful.”

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.