Oak Ridge National Laboratory
Oak Ridge National Laboratory

60 Oak Ridge National Laboratory Biologist Jobs Hiring Near You

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Oak Ridge National Laboratory Jobs Information

What is it like to work at Oak Ridge National Laboratory?

Oak Ridge National Laboratory (ORNL) is a research-intensive organization that values collaboration, innovation, and scientific excellence, fostering a culture of teamwork and open communication among its staff.

As a national laboratory, ORNL is structured into various research divisions and departments, with a diverse range of projects and initiatives focused on advancing science, technology, and engineering, including energy, climate change, and national security. The laboratory's work environment is highly collaborative, with opportunities for interdisciplinary research and knowledge sharing among scientists, engineers, and technicians.

Working at ORNL may appeal to individuals who are passionate about advancing scientific knowledge and addressing complex global challenges, as the laboratory offers a unique opportunity to contribute to cutting-edge research and development projects, collaborate with leading experts in their fields, and make a meaningful impact on society.

What makes Oak Ridge National Laboratory an attractive place to work?

Oak Ridge National Laboratory (ORNL) is a world-renowned research institution and a leading center for scientific discovery and innovation, with a long history of advancing national security, energy, and scientific research. The laboratory offers a dynamic and collaborative work environment, with opportunities for scientists and engineers to engage in cutting-edge research, work with advanced technologies, and contribute to high-impact projects that address pressing global challenges. By joining ORNL, individuals can pursue meaningful careers, develop their skills and expertise, and make a lasting impact in their field, while contributing to the nation's scientific and technological advancement.

Do workers at Oak Ridge National Laboratory get paid breaks?

Yes. Most people get paid breaks.
69% of people say they get paid breaks.
Based on data from 13 people who took the Breakroom Quiz between December 2024 and May 2026.

Does Oak Ridge National Laboratory pay people when they’re sick?

Yes. Most people get paid when they’re sick.
94% of people say they would get paid if they were sick but scheduled to work.
Based on data from 16 people who took the Breakroom Quiz between December 2024 and May 2026.

At Oak Ridge National Laboratory, are sick days and vacation days separate paid time off?

Only some people have separate paid time off for sick days and vacation.
43% of people say they have to use vacation days when they’re out sick.
Based on data from 7 people who took the Breakroom Quiz between June 2025 and May 2026.

Is the health insurance from Oak Ridge National Laboratory affordable enough for their workers?

Most people say the health insurance costs are okay.
100% of people say the health insurance costs are okay
Based on data from 10 people who took the Breakroom Quiz between March 2025 and May 2026.

Do people get paid time off at Oak Ridge National Laboratory?

Most people get paid time off work.
100% of people say they get paid time off.
Based on data from 7 people who took the Breakroom Quiz between June 2025 and May 2026.

Do workers at Oak Ridge National Laboratory worry about hours?

Most people don’t worry about getting enough hours.
93% of people report they don’t worry about getting enough hours.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and May 2026.

Do Oak Ridge National Laboratory workers get to choose the shifts they work?

Some people don’t get to choose which shifts they work.
44% report that they don’t have enough control over which shifts they work.
Based on data from 9 people who took the Breakroom Quiz between December 2024 and May 2026.

How easy is it for Oak Ridge National Laboratory workers to change shifts?

Most people find it easy to change shifts.
67% of people report that it’s easy to change shifts if they need to.
Based on data from 9 people who took the Breakroom Quiz between January 2025 and May 2026.

How easy is it to get time off at Oak Ridge National Laboratory?

Most people find it easy to get time off.
87% of people report it’s easy to get time off.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and May 2026.

Do Oak Ridge National Laboratory managers change schedules at the last minute?

Most managers don’t change people’s schedules at the last minute.
100% of people say their manager doesn’t change their shift schedule at the last minute.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and May 2026.

Do jobs at Oak Ridge National Laboratory spill into time workers aren’t paid for?

Rarely. The job doesn't usually spill into unpaid time.
13% of people report that their job takes up time that they don’t get paid for.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and May 2026.

How easy is it to take sick days at Oak Ridge National Laboratory?

Most people find it easy to take sick days.
81% of people report that it’s easy to take time off if they are sick.
Based on data from 16 people who took the Breakroom Quiz between December 2024 and May 2026.

Is working at Oak Ridge National Laboratory good if you’re a parent or caregiver?

Most parents and caregivers say this is a good place to work.
80% of people who care for a child or other relative report this is a good place to work.
Based on data from 5 people who took the Breakroom Quiz between January 2025 and May 2026.

Do people at Oak Ridge National Laboratory feel treated with respect by their managers?

Most people feel treated with respect by their managers.
79% of people say they’re treated with respect by their managers.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people at Oak Ridge National Laboratory get to take their breaks without interruption?

Most people get breaks without interruption.
73% of people report that they get to take their breaks without interruption.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and May 2026.

Is it stressful to work at Oak Ridge National Laboratory?

Most people feel stressed out here.
69% of people say they often feel stressed out at work.
Based on data from 16 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people at Oak Ridge National Laboratory enjoy their jobs?

Most people enjoy their job.
87% of people report they enjoy their job.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people at Oak Ridge National Laboratory recommend working with their team?

Most people recommend working with their team.
75% of people report that they would recommend working with their immediate team to a friend.
Based on data from 16 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people get enough training when they start at Oak Ridge National Laboratory?

Most people got enough training when they started.
73% of people report they got enough training when they started working here.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people get support to advance at Oak Ridge National Laboratory?

Most people are given support to advance their career here.
In the last year, 79% of people report being given support to advance their career here.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people think Oak Ridge National Laboratory’s headquarters understands what’s happening where they work?

Most people think headquarters doesn’t understand what’s happening where they work.
79% of people think that this employer’s headquarters or owners don’t have a good understanding of what’s really happening where they work.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and May 2026.

Do workers feel well informed about how Oak Ridge National Laboratory is doing?

Most people feel well informed about how the company is doing.
79% of people feel that they are kept well informed about how the company is doing as a whole.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and May 2026.
What are the most popular categories at Oak Ridge National Laboratory?
Infographic showing various Biologist job openings at Oak Ridge National Laboratory in the United States as of July 2026, with employment types broken down into 1% Internship, and 99% Full Time. Highlights an 96% Physical, 2% Hybrid, and 2% Remote job distribution.
Postdoctoral Research Associate - Computational Radiation Protection Scientist

Postdoctoral Research Associate - Computational Radiation Protection Scientist

Oak Ridge National Laboratory

Oak Ridge, TN

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 28 days ago


Oak Ridge National Laboratory rating

8.8

Company rating: 8.8 out of 10

Based on 16 frontline employees who took The Breakroom Quiz

13th of 120 rated laboratories


Job description

Requisition Id 16720 

­­Overview:

Oak Ridge National Laboratory is the largest US Department of Energy science and energy laboratory, conducting basic and applied research to deliver transformative solutions to compelling problems in energy and security. The Environmental Sciences Division of Oak Ridge National Laboratory (ORNL) seeks a creative individual for a postdoctoral research associate position in ORNL’s Center for Radiation Protection Knowledge (CRPK). The candidate will work with experts in computational radiation dosimetry and risk assessment. The candidate should be an independent thinker and able to participate creatively in defining and refining research directions.

Major Duties/Responsibilities:

  • The successful candidate will interact with a team of scientists and engineers at ORNL in a variety of projects involving internal and external dosimetry and radiation risk analysis
  • The CRPK provides technical assistance to U.S. federal agencies involved in development of federal guidance for radiation protection and develops many of the biokinetic and dosimetric models recommended by the International Commission on Radiological Protection (ICRP) and applied by U.S. federal agencies
  • The successful candidate will have the opportunity to assist ORNL scientists involved in these efforts, to gain expertise in biokinetic and dosimetric modeling, and to assist and eventually lead in the preparation of open literature publications in these areas
  • Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote equal opportunity by fostering a respectful workplace – in how we treat one another, work together, and measure success

Basic Qualifications:

  • A Ph.D. in nuclear or health sciences (such as health physics, radiological health, medical physics, nuclear engineering, applied mathematics or a closely related discipline)
  • Sound foundation in radiation transport, behavior of radionuclides in biological systems, and/or internal and external radiation dosimetry
  • Good oral and written communication skills
  • Ability to work both independently and collaboratively to accomplish multiple tasks within deadlines and adapt to ever-changing needs

Preferred Qualifications:

  • Experience in radiological risk assessment
  • Experience in biokinetic model development
  • Experience with Monte Carlo radiation transport software and applications
  • Experience with numerical computing using programming languages such as C++, Python, etc
  • Author or co-author of open literature publications

Special Requirements:

Applicants cannot have received their Ph.D. more than five years prior to the date of application and must complete all degree requirements before starting their appointment. The appointment length will be up to 24 months with the potential for extension. Initial appointments and extensions are subject to performance and availability of funding.

Please submit three letters of reference when applying to this position. You may upload these directly to your application or have them sent to ORNLRecruiting@ornl.gov (For postdocs, use Postdocrecruitment@ornl.gov) with the position title and number referenced in the subject line.

Instructions to upload documents to your candidate profile:

  • Login to your account via jobs.ornl.gov
  • View Profile
  • Under the My Documents section, select Add a Document

For employment at Oak Ridge National Laboratory (ORNL), a Real ID compliant form of identification will be required. Additionally, ORNL is subject to Department of Energy (DOE) access restrictions. All employees must also be able to obtain and maintain a federal Personal Identity Verification (PIV) card as mandated by Homeland Security Presidential Directive 12 (HSPD-12) and Department of Energy (DOE) Order 473.1A, which requires a favorable post-employment background investigation.

To obtain this credential, new employees must successfully complete and pass a Federal Tier 1 background check investigation. This investigation includes a declaration of illegal drug activities, including use, supply, possession, or manufacture within the last year. This includes marijuana and cannabis derivatives, which are still considered illegal under federal law, regardless of state laws.

For foreign national candidates:

If you have not resided in the U.S. for three consecutive years, you are not eligible for the PIV credential and instead will need to obtain a favorable Local Site Specific Only (LSSO) risk determination to maintain employment. Once you meet the three-year residency requirement, you will be required to obtain a PIV credential to maintain employment. 

About ORNL:

As a U.S. Department of Energy (DOE) Office of Science national laboratory, ORNL has an impressive 80-year legacy of addressing the nation’s most pressing challenges. Our team is made up of over 7,000 dedicated and innovative individuals! Our goal is to create an environment where a variety of perspectives and backgrounds are valued, ensuring ORNL is known as a top choice for employment. These principles are essential for supporting our broader mission to drive scientific breakthroughs and translate them into solutions for energy, environmental, and security challenges facing the nation.

ORNL offers competitive pay and benefits programs to attract and retain individuals who demonstrate exceptional work behaviors. The laboratory provides a range of employee benefits, including medical and retirement plans and flexible work hours, to support the well-being of you and your family. Employee amenities such as on-site fitness, banking, and cafeteria facilities are also available for added convenience.

Other benefits include the following: Prescription Drug Plan, Dental Plan, Vision Plan, 401(k) Retirement Plan, Contributory Pension Plan, Life Insurance, Disability Benefits, Generous Vacation and Holidays, Parental Leave, Legal Insurance with Identity Theft Protection, Employee Assistance Plan, Flexible Spending Accounts, Health Savings Accounts, Wellness Programs, Educational Assistance, Relocation Assistance, and Employee Discounts.

#LI-DC1

This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.

We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment.

If you have trouble applying for a position, please email ORNLRecruiting@ornl.gov.

ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.  UT-Battelle is an E-Verify employer.


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