Jobs › Argonne National Laboratory

Group Leader - Low Energy Nuclear Physics

Argonne National Laboratory · Lemont, IL · $157,940–$256,640 a year · Full time

Posted Nov 19, 2025 · We last checked this listing on Oct 6, 2026

Apply at Argonne National Laboratory

Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time you led a research program through a flat or falling budget. What did you cut, and how did you explain it to the people affected?

What they are checking: Whether they have actually carried bad budget news to colleagues and kept their trust afterward.

How do you mentor a postdoc versus a mid-career staff scientist, and how do you handle an annual evaluation for someone whose output has slipped?

What they are checking: Whether they can give honest performance feedback to peers and juniors, not just encourage people.

Give me an example of how you built a strong safety culture in a lab or experimental area. What did you do when someone pushed back on a safety rule?

What they are checking: Whether safety is something they personally enforce and model, especially with accelerator beams and radiation work.

How would you make the group a place where a new scientist from an underrepresented background wants to stay and grow?

What they are checking: Whether their idea of inclusive excellence comes with specific practices rather than general agreement.

Tell me about the most important long-range plan or white paper you contributed to. How did it change what your group actually did?

What they are checking: Whether their long-term planning connects to real decisions and funding outcomes instead of staying on paper.

What would you do

LER is the largest group in the Physics Division, with 11 staff scientists and about 7 postdocs. How would you set research priorities across nuclear structure, astrophysics, fundamental symmetries and nuclear data when the budget can't fund all of them equally?

What they are checking: Whether they can make hard portfolio tradeoffs openly instead of spreading money thin to avoid conflict among senior scientists.

The group supports ATLAS users while also running its own research program. How do you keep user support strong without your own staff feeling their science always comes second?

What they are checking: Balancing a facility service mission against the group's own scientific output, which is a constant tension in this role.

DOE Office of Nuclear Physics sends an information request with a short deadline in the middle of a busy run cycle. Walk me through how you'd handle it.

What they are checking: Whether they treat sponsor requests as real priorities and know how to pull accurate answers from busy staff quickly.

You'll be working with the Physics Division Director and the ATLAS Scientific and Operations Directors. How do you handle a disagreement with a peer leader over beam time or staff allocation?

What they are checking: Whether they can negotiate with leaders who don't report to them while protecting both the group and the facility.

About the work

Where do you see the science opportunities with nuCARIBU and RAISOR beams over the next five to ten years, and what would you want LER to own?

What they are checking: Whether they have a concrete scientific vision tied to this facility's unique beams rather than a generic research agenda.

Describe a detector system you helped design or operate. What decisions did you make about it, and what would you do differently now?

What they are checking: Hands-on depth in instrumentation, since the group develops and runs advanced detector systems for ATLAS.

Practice this interview out loud.

Offer builds a real interview for this exact role at Argonne National Laboratory from your resume and this job description, asks the questions one at a time, and tells you what landed. The first one is free.

Practice this out loud

The full job description

As published by Argonne National Laboratory.

Argonne National Laboratory invites applications for the position of Group Leader for the Low-Energy Nuclear Physics Research Group (LER) within the Physics Division. LER is the largest research group in the division, comprising 11 Ph.D. scientists and approximately 7 postdoctoral researchers. The group conducts world-leading research in nuclear structure, nuclear astrophysics, fundamental symmetries, and nuclear data. LER also plays a critical role for the ATLAS National User Facility, where it provides support for ATLAS Users, conducts its own research program, and develops and operates advanced detector systems. ATLAS is supported by the Department of Energy (DOE) Office of Nuclear Physics and hosts 300-500 users annually from universities and national laboratories in the U.S. and worldwide. ATLAS offers both stable beams and unique rare isotope beams from either the nuCARIBU facility or the in-flight production facility RAISOR. The LER group is primarily funded by the DOE Office of Nuclear Physics. Key responsibilities for the Group Leader include: • Manage research priorities, long-term planning, and budget allocations • Respond to DOE initiatives and information requests • Mentor, develop, and evaluate staff • Foster a robust culture of safety and inclusive excellence • Collaborate with the Physics Division Director, ATLAS Scientific and Operations Directors, and other group leaders to develop strategic plans and set priorities • Build productive relationships with funding agencies, academic institutions, and the broader research community The Group Leader is also expected to develop and lead a world-class research program that aligns with DOE priorities in low-energy nuclear physics outlined in the 2023 Nuclear Science Advisory Committee Long Range Plan for Nuclear Science. Additional information about the LER group can be found at www.anl.gov/phy/low-energy-physics-lep . Position Requirements The successful candidate must have a Ph.D., an internationally recognized research career in Nuclear Physics, demonstrated leadership and administrative experience and ability to model Argonne’s core values of impact, safety, respect, integrity, and teamwork. Applicants should apply to this requisition and submit a comprehensive curriculum vitae, a cover letter outlining your interest in the position, and a detailed research statement (up to two pages). If you have questions about the position, please contact Ian Cloët ( icloet@anl.gov ), chair of the search committee and Deputy Director of the Physics Division. Applications received by 2 March 2026 will be given full consideration. Job Family Research Development (RD) Job Profile Physics Leader 2 Worker Type Regular Time Type Full time The expected hiring range for this position is $157,940.00 - $256,639.50. Please note that the pay range information is a general guideline only. The pay offered to a selected candidate will be determined based on factors such as, but not limited to, the scope and responsibilities of the position, the qualifications of the selected candidate, business considerations, internal equity, and external market pay for comparable jobs. Additionally, comprehensive benefits are part of the total rewards package. Click here to view Argonne employee benefits! As an equal employment opportunity employer, and in accordance with our core values of impact, safety, respect, integrity and teamwork, Argonne National Laboratory is committed to a safe and welcoming workplace that fosters collaborative scientific discovery and innovation. Argonne encourages everyone to apply for employment. Argonne is committed to nondiscrimination and considers all qualified applicants for employment without regard to any characteristic protected by law. Argonne employees, and certain guest researchers and contractors, are subject to particular restrictions related to participation in Foreign Government Sponsored or Affiliated Activities, as defined and detailed in United States Department of Energy Order 486.1A. You will be asked to disclose any such participation in the application phase for review by Argonne's Legal Department. All Argonne offers of employment are contingent upon a background check that includes an assessment of criminal conviction history conducted on an individualized and case-by-case basis. Please be advised that Argonne positions require upon hire (or may require in the future) for the individual be to obtain a government access authorization that involves additional background check requirements. Failure to obtain or maintain such government access authorization could result in the withdrawal of a job offer or future termination of employment.

Apply at Argonne National Laboratory