Postdoctoral Researcher – Transportation Digital Twins and High-Performance Simulation

Posting TitlePostdoctoral Researcher – Transportation Digital Twins and High-Performance Simulation

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LocationCO - Golden

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Position TypePostdoc (Fixed Term)

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Hours Per Week40

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Working at NLRNLR is located at the foothills of the Rocky Mountains in Golden, Colorado is the nation's primary laboratory for energy systems research and development.

Join the National Laboratory of the Rockies (NLR), where world-class scientists, engineers, and experts are accelerating energy innovation through breakthrough research and systems integration. From our mission to our collaborative culture, NLR stands out in the research community for its commitment to an affordable and secure energy future. Spanning foundational science to applied systems engineering and analysis, we focus on solving complex challenges to deliver advanced, secure, reliable, and cost-effective energy solutions. Our work helps strengthen U.S. industries, support job creation, and promote national economic growth.

At NLR, you'll find a mission-driven environment supported by state-of-the-art facilities, multidisciplinary research teams, and strong collaborations with industry, academia, and other national laboratories. We offer robust professional development opportunities, and a competitive benefits package designed to support your career and well-being.

Job Description

The Advanced Computing Solutions Group in the Computational Science Center at the National Laboratory of the Rockies (NLR) has an opening for a postdoctoral researcher in transportation digital twins, large-scale simulation, and high-performance computing (HPC). The researcher will develop and validate traffic and vehicle simulation models and build scalable computing workflows to study connected and automated vehicle (CAV) operations, traffic control, and their mobility, safety, and energy impacts. The successful candidate will conduct independent research and collaborate with NLR scientists and external partners.

Responsibilities include:

• Develop, calibrate, and validate traffic digital twin and co-simulation models.
• Design and evaluate vehicle and traffic signal control strategies using optimization or machine learning.
• Build and optimize scalable HPC workflows for large-scale simulation and scenario studies.
• Integrate traffic, vehicle, communication, and energy models into reproducible research tools.
• Analyze results and communicate findings through publications, reports, and presentations.

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Basic QualificationsMust be a recent PhD graduate within the last three years.

* Must meet educational requirements prior to employment start date.

Additional Required Qualifications

• Ph.D. in a relevant engineering, computing, or mathematical discipline (subject to NLR postdoctoral eligibility requirements).
• Research experience in transportation modeling, large-scale simulation, or scientific computing.
• Proficiency in Python, C/C++, or MATLAB for modeling and data analysis.
• Ability to conduct independent research and collaborate in interdisciplinary teams.

Preferred Qualifications

• Experience with traffic or vehicle simulation tools (e.g., SUMO, CARLA).
• Experience with parallel computing (e.g., MPI, CUDA) and HPC clusters.
• Background in CAV control, traffic signal operations, or traffic flow theory.
• Familiarity with V2X communication, transportation energy models, or co-simulation.
• Record of peer-reviewed publications and collaborative software practices.

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Job Application Submission Window

The anticipated closing window for application submission is up to 30 days and may be extended as needed.

Annual Salary Range (based on full-time 40 hours per week)Job Profile: Postdoctoral Researcher / Annual Salary Range: $76,600 - $126,400

NLR takes into consideration a candidate’s education, training, and experience, expected quality and quantity of work, required travel (if any), external market and internal value, including seniority and merit systems, and internal pay alignment when determining the salary level for potential new employees. In compliance with the Colorado Equal Pay for Equal Work Act, a potential new employee’s salary history will not be used in compensation decisions.

Benefits SummaryBenefits include medical, dental, and vision insurance; short-term disability insurance*; pension benefits*; 403(b) Employee Savings Plan with employer match*; life and accidental death and dismemberment (AD&D) insurance; personal time off (PTO) and sick leave; and paid holidays. NLR employees may be eligible for, but are not guaranteed, performance-, merit-, and achievement- based awards that include a monetary component. Some positions may be eligible for relocation expense reimbursement.

* Based on eligibility rules

Badging RequirementNLR 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 required by Homeland Security Presidential Directive 12 (HSPD-12), which includes a favorable background investigation.

Drug Free Workplace

NLR is committed to maintaining a drug-free workplace in accordance with the federal Drug-Free Workplace Act and complies with federal laws prohibiting the possession and use of illegal drugs. Under federal law, marijuana remains an illegal drug.

If you are offered employment at NLR, you must pass a pre-employment drug test prior to commencing employment. Unless prohibited by state or local law, the pre-employment drug test will include marijuana. If you test positive on the pre-employment drug test, your offer of employment may be withdrawn.

Submission Guidelines

Please note that in order to be considered an applicant for any position at NLR you must submit an application form for each position for which you believe you are qualified. Applications are not kept on file for future positions. Please include a cover letter and resume with each position application.

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Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard basis of age (40 and over), color, disability, gender identity, genetic information, marital status, domestic partner status, military or veteran status, national origin/ancestry, race, religion, creed, sex (including pregnancy, childbirth, breastfeeding), sexual orientation, and any other applicable status protected by federal, state, or local laws.

Reasonable Accommodations

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