Postdoctoral Research Associate - Biogeochemist

Requisition Id15722

We are seeking a postdoctoral researcher skilled in biogeochemistry who will focus on a project investigating the effects of natural and engineered materials on the stabilization of mercury (Hg) in contaminated environmental media (air, soils, sediments, water). This position resides in the Biodiversity and Ecosystem Health in the Biodiversity and Sustainable Systems Section, Environmental Sciences Division, Biological & Environmental Systems Science at Oak Ridge National Laboratory (ORNL).

• Design experiments and perform laboratory investigations with elemental Hg.
• Acquire and analyze data using a range of analytical instrumentation.
• Maintain detailed and accurate records.
• Prepare oral and written reports.
• Publish and present research results in peer-reviewed journals and at conferences.
• 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.

• Ph.D. in environmental chemistry, civil/environmental engineering, (bio) geochemistry, soil science, or a related discipline.
• Experience with laboratory investigations and experimental design.
• Prioritizes a safe work environment and complies with all ES&H regulations.
• A proven publication record.
• Ability to work independently and collaboratively as part of an interdisciplinary research team.

• Experience researching mercury
• Analytical chemistry experience working with trace metals
• Experience with materials characterization and analysis methods.
• Excellent written and oral communication skills.
• Motivated self-starter with the ability to work independently and to participate creatively in collaborative teams across the laboratory.
• Ability to function well in a fast‑paced research environment, set priorities to accomplish multiple tasks within deadlines, and adapt to ever changing needs.

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.

For employment at Oak Ridge National Laboratory (ORNL), a Real  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.

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.

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