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: 03/07/2023

Range: $110,300 - $174,200 (SCS III)

Work Location Type: Dedicated On-Site (working 100% on-site)

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

What your job will be like:

As a network infrastructure software developer, you will design and implement network tools to enable cutting edge science, worldwide in reach. As a “close-to-the metal” developer you will implement drivers, tools, and interfaces that exploit high performance network hardware to maximize performance. This is cutting edge network development, integral to an exciting new era for high throughput and high-performance computing.

In this role you will:

  • Write driver-level networking code to enable high performance, near real time data flows.
  • Measure and optimize performance of hardware/software stacks to meet customer requirements for throughput, latency, and quality of service in applications where there may be little precedent
  • Implement solutions using leading-edge hardware such as FPGAs, optical switching, and programmable switches
  • Collaborate with division, scientific staff, and staff at peer institutions to debug complex network issues

Qualifications We Require


  • BS in Computer Science or Computer Engineering from an accredited University


  • 6 years of experience developing system-level code, such as device drivers and Linux kernel modules

Knowledge, Skills, Abilities:

  • Able to communicate complex technical issues clearly, both verbally and in writing
  • Ability to work collaboratively across knowledge domains and organize multi-domain projects
  • Expert facility in systems programming languages such as C, C++, p4, or Rust.
  • A strong knowledge of Ethernet and IP Networking at the frame level.
  • A developer’s working knowledge of Linux, including networking internals and tuning
  • Experience with Network switches and routers (e.g. Arista, Cisco, Nokia, Juniper)
  • Experience with network performance monitoring and diagnostic tools
  • A working knowledge of physical networking standards (cables, connectors, transceivers)
  • Expert facility with network tools such as Wireshark

Qualifications We Desire

  • MS in Computer Science or Computer Engineering
  • Experience with data center fabrics such as InfiniBand
  • Experience with firmware coding
  • System and network administration experience
  • Experience with Firmware

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 (vacation, holidays, 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

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.