Day: February 18, 2026

PREP0004130: Research Associate: Materials Characterization of Electronic Scrap Post-Doctoral Researcher

This position is part of the National Institute of Standards (NIST) Professional Research Experience (PREP) program. NIST recognizes that its research staff may wish to collaborate with researchers at academic institutions on specific projects of mutual interest, thus requires that such institutions must be the recipient of a PREP award. The PREP program requires staff from a wide range of backgrounds to work on scientific research in many areas. Employees in this position will perform technical work that underpins the scientific research of the collaboration.

Research Title: Materials Characterization of Electronic Scrap Post-Doctoral Researcher

U.S. Citizen Preferred

The work will entail:

The growing demand for critical minerals has highlighted the need for a more diverse and secure supply chain. The traditional linear model of resource extraction, processing, use, and disposal is subject to supply chain risks and results in a significant loss of critical minerals from the economy. As a result, there is increasing interest in transitioning to a more circular economy, where materials are recovered and reused at the end-of-life through recycling and other strategies. This shift has significant implications for the management of electronic scrap (e-scrap), which is a valuable source of critical minerals such as rare earth elements, lithium, and other key materials.
Current e-scrap recycling practices involve device shredding and separation of bulk materials (steel, aluminum, plastics, etc.). Many critical minerals and precious metals are not recovered in current processes, and to do so requires an improved understanding of where they end up in the recycling system. In this study, we’re aiming to characterize the bulk separated material streams provided by e-scrap recyclers to understand elemental compositions and identify opportunities for recycling system improvements. In that effort, we seek a post-doctoral researcher with wet chemistry experience to support laboratory work, data analysis, and information dissemination. The researcher will work with an interdisciplinary NIST team in applying multiple analytical methodologies, including neutron activation analysis, XRF, and ICP-MS and ES, among others, as well as document and report findings. The ideal candidate would have prior experience working in laboratory setting with a good understanding of laboratory procedures, laboratory safety, and knowledge of critical mineral analyses.

Key responsibilities:

  • Conduct literature review and stakeholder engagement to Conduct literature review and stakeholder engagement to inform project development and identify gaps. 
  • Preparing samples for analyses using techniques such as milling, grinding, and microwave assisted acid digestion. 
  • Developing bulk and trace analytical elemental quantification methods with ICP-OES and nuclear analytical methods. 
  • Executing measurements using developed methods, analyzing data, and interpreting results to draw meaningful conclusions. 
  • Disseminating research findings through peer-reviewed publication(s), technical report(s), and/or oral presentation(s). 
  • Ensuring compliance with institutional safety protocols and requirements.

Qualifications:

  • PhD in Chemistry, Chemical Engineering or Materials Science (or a related field with equivalent skills and experience). 
  • Experience with microwave acid digestion, ICP-OES, and analysis of critical minerals.
  • Strong oral and written communication skills, with the ability to effectively convey complex research findings to complex audiences. 
  • A demonstrated track record of conducting independent and collaborative research in a multidisciplinary team environment, with a strong ability to meet project deliverables and milestones. 
  • A highly motivated and proactive approach to scientific problem solving, as evidenced by a strong publication record and letters of recommendation. 
  • A commitment to enforcing and adhering to safety protocols and requirements. 
  • Willingness to travel. 
  • Comfortable working with large volumes of hazardous chemicals, radioactive materials, and under radiological conditions.

Please upload the following (preferably in a single PDF) with your application:

  • CV/Resume

Privacy Act Statement

Authority: 15 U.S.C. § 278g-1(e)(1) and (e)(3) and 15 U.S.C. § 272(b) and (c)

Purpose: The National Institute for Standards and Technology (NIST) hosts the Professional Research Experience Program (PREP) which is designed to provide valuable laboratory experience and financial assistance to undergraduates, post-bachelor’s degree holders, graduate students, master’s degree holders, postdocs, and faculty.

PREP is a 5-year cooperative agreement between NIST laboratories and participating PREP Universities to establish a collaborative research relationship between NIST and U.S. institutions of higher education in the following disciplines including (but may not be limited to) biochemistry, biological sciences, chemistry, computer science, engineering, electronics, materials science, mathematics, nanoscale science, neutron science, physical science, physics, and statistics. This collection of information is needed to facilitate administrative functions of the PREP Program.

Routine Uses: NIST will use the information collected to perform the requisite reviews of the applications to determine eligibility, and to meet programmatic requirements. Disclosure of this information is also subject to all the published routine uses as identified in the Privacy Act System of Records Notices: NIST-1: NIST Associates.

Disclosure: Furnishing this information is voluntary. When you submit the form, you are indicating your voluntary consent for NIST to use of the information you submit for the purpose stated.

NIST Research Associate: Materials Characterization of Electronic Scrap Post-Doctoral Researcher

NIST MML – 63 has a new PREP research opportunity described below and in the attached (PREP0004130). The NIST Sponsor is seeking candidate recommendations.

  • Project Title/Description: Materials Characterization of Electronic Scrap Post-Doctoral Researcher
  • OU: MML – 63
  • Div: 646
  • Group: Chemical Process and Nuclear Measurements Group
  • Level of Appointment: Post-doctoral Fellow
  • Schedule of Appointment: full time
  • Total Hours per week: 40
  • Work Location: Physically at NIST (Gaithersburg, MD)
  • Requested Start Date: 2026-06-09
  • End Date: 2027-06-02

PREP0004138 Research Associate: Text Retrieval Conference

This position is part of the National Institute of Standards (NIST) Professional Research Experience (PREP) program. NIST recognizes that its research staff may wish to collaborate with researchers at academic institutions on specific projects of mutual interest, thus requires that such institutions must be the recipient of a PREP award. The PREP program requires staff from a wide range of backgrounds to work on scientific research in many areas. Employees in this position will perform technical work that underpins the scientific research of the collaboration.

Research Title: Evaluation of search, natural language processing, multimedia, and generative information systems.

The work will entail:

The National Institute of Standards and Technology’s (NIST) Information Technology Laboratory is seeking a qualified candidate to support the Text Retrieval Conference (TREC, trec.nist.gov). TREC evaluates AI technologies in information retrieval (IR), search, natural language processing, and multimedia search, creating human-labeled data to measure effectiveness. TREC hosts annual evaluations & workshops, releasing datasets and research papers upon completion. The candidate for this position will work alongside world-class researchers at NIST

U.S. Citizen Preferred

Key responsibilities will include but are not limited to:

  • Develop software for topic creation, relevance assessment, and generative output annotation.
  • Develop scoring software for evaluation outputs.
  • Develop and maintain systems used to register, submit outputs, and see evaluation results.
  • Conduct research on evaluating information access systems, including but are not limited to:
    • Automating the evaluation of AI-generated outputs.
    • Leveraging human insight and expertise with AI support for data annotation and evaluation.
    • Designing metrics for AI-generated outputs in information-seeking contexts.
    • Interfaces for annotating data that support consistency and identify errors.
    • Quality control processes for data annotation.
    • Leaderboard designs that support cooperative research instead of competition.

Qualifications:

  • A PhD degree in Computer Science.
  • 5+ years of relevant experience.
  • Experience building systems with large language models as components.
  • Familiarity with Docker and Git.
  • Experience with Python, JavaScript, and web frameworks such as React and Django.
  • Ability to develop prototypes of tools needed to analyze data.
  • Strong oral and written communication skills.

Please upload the following (preferably in a single PDF) with your application:

  • CV/Resume

Privacy Act Statement

Authority: 15 U.S.C. § 278g-1(e)(1) and (e)(3) and 15 U.S.C. § 272(b) and (c)

Purpose: The National Institute for Standards and Technology (NIST) hosts the Professional Research Experience Program (PREP) which is designed to provide valuable laboratory experience and financial assistance to undergraduates, post-bachelor’s degree holders, graduate students, master’s degree holders, postdocs, and faculty.

PREP is a 5-year cooperative agreement between NIST laboratories and participating PREP Universities to establish a collaborative research relationship between NIST and U.S. institutions of higher education in the following disciplines including (but may not be limited to) biochemistry, biological sciences, chemistry, computer science, engineering, electronics, materials science, mathematics, nanoscale science, neutron science, physical science, physics, and statistics. This collection of information is needed to facilitate administrative functions of the PREP Program.

Routine Uses: NIST will use the information collected to perform the requisite reviews of the applications to determine eligibility, and to meet programmatic requirements. Disclosure of this information is also subject to all the published routine uses as identified in the Privacy Act System of Records Notices: NIST-1: NIST Associates.

Disclosure: Furnishing this information is voluntary. When you submit the form, you are indicating your voluntary consent for NIST to use of the information you submit for the purpose stated.

PREP Research Associate: Text Retrieval Conference

NIST ITL – 77 has a new PREP research opportunity described below and in the attached (PREP0004138). The NIST Sponsor is seeking candidate recommendations.

  • Project Title/Description: Research Associate, PhD Computer Science – Text Retrieval Conference
  • OU: ITL – 77
  • Div: 774
  • Group: Retrieval Group
  • Level of Appointment: Academic Affiliate
  • Schedule of Appointment: full time
  • Total Hours per week: 40
  • Work Location: Physically at NIST (Gaithersburg, MD)
  • Requested Start Date: 2026-06-09
  • End Date: 2027-06-06

PREP0004081: Research Associate: Microparticle Measurements in Microfluidics (CHIPS Funded Project)

This position is part of the National Institute of Standards (NIST) Professional Research Experience (PREP) program. National Institute of Standards (NIST) Professional Research Experience (PREP) program invites applicants in support of research in assay development for microparticle measurements in microfluidics. NIST recognizes that its research staff may wish to collaborate with researchers at academic institutions on specific projects of mutual interest, thus requires that such institutions must be the recipient of a PREP award. The PREP program requires staff from a wide range of backgrounds to work on scientific research in many areas. Employees in this position will perform technical work that underpins the scientific research of the collaboration.

Research Title: Control and measurement of microparticle in microfluidics

The work will entail:

This research project will entail design and testing of new methods for manipulation and optical characterization of materials in microflows. The scientist will work closely with a collaborative, multidisciplinary team of researchers to design, build, and model novel instrumentation that provides measurements of chemicals, microparticles, cells and cellular organelles in optofluidic measurement systems. The scientist will conduct experiments to estimate chemical mixing times, particle sizes and counts, fluorophore quantification limits, and limits to dynamic measurement delays that may be limited, for example, by particle tracking capabilities. The scientist will maintain cells and prepare assays of beads, cells, and organelles that will be used in devices that can passively purify reagents in flow (e.g. inertial focusing and dynamic lateral displacement arrays). Devices to stimulate and assess cellular function will also be fabricated and tested. Fluorescence microscopy and conventional flow cytometry will be utilized to benchmark measurements.

Key responsibilities:

  • Maintain cells and prepare reagents
  • Design, build and use microfluidic devices with integrated optical measurement regions
  • Analyze cell and particle measurements in microfluidic devices and in culture via microscopy
  • Presenting results at internal meetings, and occasional meetings with external stakeholders.
  • Ensuring that results, protocols, software, and documentation have been archived or otherwise transmitted to the larger organization.

Qualifications:

  • U.S. Citizen Preferred
  • A doctoral degree in Biomedical Engineering, Mechanical Engineering, Chemistry, or a related field.
  • 3+ years of experience with microfluidics device design, control, and use
  • Experience with clean room photolithography
  • Experience with fluorescence microscopy
  • Familiarity with Matlab software for instrument control and data analysis
  • Familiarity with flow cytometry
  • Strong oral and written communication skills

Please upload the following (preferably in a single PDF) with your application:

  • CV/Resume

Privacy Act Statement

Authority: 15 U.S.C. § 278g-1(e)(1) and (e)(3) and 15 U.S.C. § 272(b) and (c)

Purpose: The National Institute for Standards and Technology (NIST) hosts the Professional Research Experience Program (PREP) which is designed to provide valuable laboratory experience and financial assistance to undergraduates, post-bachelor’s degree holders, graduate students, master’s degree holders, postdocs, and faculty.

PREP is a 5-year cooperative agreement between NIST laboratories and participating PREP Universities to establish a collaborative research relationship between NIST and U.S. institutions of higher education in the following disciplines including (but may not be limited to) biochemistry, biological sciences, chemistry, computer science, engineering, electronics, materials science, mathematics, nanoscale science, neutron science, physical science, physics, and statistics. This collection of information is needed to facilitate administrative functions of the PREP Program.

Routine Uses: NIST will use the information collected to perform the requisite reviews of the applications to determine eligibility, and to meet programmatic requirements. Disclosure of this information is also subject to all the published routine uses as identified in the Privacy Act System of Records Notices: NIST-1: NIST Associates.

Disclosure: Furnishing this information is voluntary. When you submit the form, you are indicating your voluntary consent for NIST to use of the information you submit for the purpose stated.

PREP Research Associate: Microparticle Measurements in Microfluidics (CHIPS Funded)

NIST PML – 68 has a new PREP research opportunity described below and in the attached (PREP0004081). The NIST Sponsor is seeking candidate recommendations.

  • Project Title/Description: Microparticle Measurements in Microfluidics
  • OU: PML – 68
  • Div: 681
  • Group: Biophysical and Biomedical Measurement Group
  • Level of Appointment: Post-doctoral Fellow
  • Schedule of Appointment: full time
  • Total Hours per week: 40
  • Work Location: Physically at NIST (Gaithersburg, MD)
  • Requested Start Date: 2026-05-23
  • End Date: 2028-02-29