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National Renewable Energy Laboratory Modelica Modeling and Simulation Scientist in Golden, Colorado

Posting Title

Modelica Modeling and Simulation Scientist



CO - Golden


Position Type



Hours Per Week



Annual Salary Range (based on full-time 40 hours per week)

Annual Salary Range: $88,800 - $159,700

Offers will typically be made in the bottom half of the listed range. NREL takes into consideration a candidate’s education, training, and experience, as well as the position's work location, 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.

Job Description

This position will be filled at the Researcher Level III or IV based on the basic and required qualifications of the selected candidate: 

NREL's Commercial Buildings Research Group has an opening for a full-time Modelica expert. The successful applicant will help drive the next-generation of grid-interactive efficient buildings by developing the research platform necessary to reach key R&D milestones. Work will consist primarily of advancing the maturity of Modelica-based representations of district-scale heating, ventilating, and air-conditioning (HVAC) systems to advance the maturity of the U.S. Department of Energy’s URBANopt modeling platform.

We are looking for an individual who will work collaboratively to identify, design, and implement new Modelica-based URBANopt functionality, and is comfortable working with industry to facilitate the realization of the next generation of zero-energy communities. The hired candidate will be expected to publish relevant research outcomes in peer-reviewed scientific journals and must be able to work across teams to remove uncertainty from project requirements and build consensus around outcomes.

Research at NREL is a highly collaborative process; this role is team-based. We are seeking an individual who thrives in an interactive environment and will positively contribute to the collective NREL body of work. A willingness to engage in a team-based approach to research is a requirement.

For the Researcher Level III position:

The Researcher Level III functions independently with minimal supervision and guidance. The Level III has a rich, in-depth understanding and wide application of the technical principles, theories, and concepts.

For the Researcher IV position:

The Researcher IV position applies extensive engineering technical expertise, and has full knowledge of other related disciplines. Considered a technical resource and demonstrates leadership in several areas of team, task or project lead responsibilities. Demonstrated experience in management of projects.


Basic Qualifications

Basic Qualifications for Researcher III:

PhD in Mechanical Engineering, Electrical Engineering, Computer Science, Physics or related field.

Or, Master's Degree in Mechanical Engineering, Electrical Engineering, Computer Science, Physics or related field and 3 or more years of relevant experience

Or, Bachelor's Degree in Mechanical Engineering, Electrical Engineering, Computer Science, Physics or related field and 5 or more years of relevant experience.

Basic Qualifications for Researcher IV:

PhD in Mechanical Engineering, Electrical Engineering, Computer Science, Physics or related field and 4 or more years of experience.

Or, Master's Degree in Mechanical Engineering, Electrical Engineering, Computer Science, Physics or related field and 7 or more years of relevant experience.

Or, Bachelor's Degree in Mechanical Engineering, Electrical Engineering, Computer Science, Physics or related field and 9 or more years of relevant experience .


Additional Required Qualifications

Preferred Qualifications


Benefits Summary

Benefits include medical, dental, and vision insurance; short- and long-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; paid holidays; and tuition reimbursement. NREL 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. Limited-term positions are not eligible for long-term disability or tuition reimbursement.

* Based on eligibility rules

Submission Guidelines

Please note that in order to be considered an applicant for any position at NREL 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.


EEO Policy

NREL is an Equal Opportunity/Affirmative Action 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, 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.

EEO is the Law ( | Pay Transparency Nondiscrimination ( | Reasonable Accommodations (

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E-Verify is a registered trademark of the U.S. Department of Homeland Security. This business uses E-Verify in its hiring practices to achieve a lawful workforce.

The National Renewable Energy Laboratory (NREL) is a leader in the U.S. Department of Energy’s effort to secure an environmentally and economically sustainable energy future. With locations in Golden and Boulder, Colorado, and a satellite office in Washington, D.C., NREL is the primary laboratory for research, development, and deployment of renewable energy technologies in the United States.

NREL is subject to Department of Energy (DOE) access restrictions. All candidates must be authorized to access the facility per DOE rules and guidance within a reasonable time frame for the specified position in order to be considered for an interview. DOE rules for site access during the interview process are the same regardless of whether the candidate is interviewed on-site, off-site, or via telephone or videoconference. Additionally, DOE contractor employees are prohibited from participating in certain Foreign Government Talent Recruitment Programs (FGTRPs). If a candidate is currently participating in an FGTRP, they will be required to disclose their participation after receiving an offer of employment and may be required to disengage from participation in the FGTRP prior to commencing employment. Any offer of employment is conditional on the ability to obtain work authorization and to be granted access to NREL by the Department of Energy (DOE). We understand that COVID-19 may have caused delays or closures at offices, consulates, and embassies. However, NREL cannot make exceptions to work authorization and access requirements, and exceptions to these requirements are not being made for COVID-19 related delays.

Please review the information on our Hiring Process ( website before you create an account and apply for a job. We also hope you will learn more about NREL ( , visit our Careers site ( , and continue to search for job opportunities ( at the lab.