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Job #: R-00123478-OTHLOC-PL-2D0871
Location: Falls Church, VA
Category: Systems Engineering
Schedule (FT/PT): Full Time
Travel Required: Yes, 10% of the time
Shift: Day
Remote Type: No Remote
Clearance: Public Trust
Referral Eligibility: Eligible
Referral Bonus Amount: $2000
Group: Health & Civil

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Join a forward-thinking team committed to innovating the transportation sector! At Leidos, we support the Federal Highway Administration’s (FHWA) Saxton Transportation Operations Laboratory (STOL), focusing on enhancing transportation operations, safety, mobility, and reducing environmental impacts. STOL champions the integration of emerging technologies such as cooperative driving automation (CDA) and Vehicle-to-Everything (V2X) to revolutionize transportation.

Learn more about STOL here

Role Overview:

We are seeking a dedicated Transportation Engineer/Modeler to join our McLean, Virginia group. You will engage in dynamic projects involving Operations, Safety, Freight, and Access Management and in the growing and rapidly advancing fields of Intelligent Transportation Systems (ITS), CDA, V2X, and Connected Vehicle (CV) technologies.

Key Responsibilities, but are not limited to:

  • Conduct research on a variety of transportation engineering projects, which encompass traffic simulation, CDA, V2X, CV, safety, and Intelligent Transportation Systems (ITS).
  • Execute traffic simulation projects across multiple scales, ranging from microscopic to macroscopic levels.
  • Develop, refine, and maintain simulation networks, manage comprehensive data analysis, and implement cutting-edge algorithms in an open-source environment.
  • Perform cross-disciplinary CDA simulations, including automated driving simulation, vehicle dynamics simulation, V2X communication simulation, and sensor simulation.
  • Participate in the creation of digital twins and high-definition (HD) maps
  • Utilize data mining techniques and algorithms to analyze Connected and Automated Vehicle (CAV) data.
  • Create guidance, training, and outreach materials aimed at technical audiences, practitioners, and various stakeholders, focusing on diverse aspects of transportation.
  • Develop documentation, reports, manuals, and presentations to effectively communicate project results to intended audiences, ensuring clarity and practical applicability in both oral and written forms.
  • Contribute to the development, support, and review of technical proposals.
  • Author white papers, proposals, and briefings that demonstrate technical and thought leadership, catering to the needs of Leidos leadership or clients.

Required Qualifications:

  • Advanced degree (Master’s or higher) in Transportation Engineering, Systems Engineering, Computer Science, or related fields.
  • Extensive experience with at least one of microscopic traffic simulation tools (e.g., SUMO, Vissim, Aimsun, Transmolder, or similar).
  • Ability to obtain and maintain a Public Trust clearance (which includes three years of immediate residency in the US).
  • Proficiency in programming for implementing developed algorithms into microscopic traffic simulation tools (C++, Java, Python, VBA, or Matlab).
  • Demonstrated ability to author technical research papers and reports.
  • Expertise in advanced data analytics for transportation.
  • Knowledge of CAV, Intelligent Transportation Systems, and traffic operation and management.
  • Clear communication skills, both verbal and written.

Preferred Experience:

  • Proficient in autonomous driving and sensor simulation tools, with direct hands-on experience (e.g., CARLA, LGSVL, CARMAKER, or similar).
  • Experience with developing digital twin and 3D simulation scenes for autonomous driving and sensor simulation tools by using professional tools (e.g., Roadrunner).
  • Experience with creating high-definition (HD) maps.
  • Familiarity with concepts of co-simulation or co-simulation frameworks (FMI/HLA/MOSAIC) 
  • Solid understanding of Vehicle-to-Everything (V2X) communication protocols and experience with communication simulation tools such as NS-3 and OMNET++.
  • Experience with vehicle dynamics simulators (e.g., CARSIM and TruckSIM).
  • Hands-on experience or familiarity with CARMA ecosystem (e.g., CARMA platform, CARMA streets, CARMA messenger, and CARMA Cloud)
  • Experience with implementing artificial intelligence (AI) and machine learning in transportation
  • Familiar with augmented reality (AR) and virtual reality (VR) technologies.
  • Demonstrated project management skills, with a track record of successfully overseeing projects from inception to completion.
  • Capable of developing Requests for Information (RFI), Requests for Proposal (RFP), and managing subcontractor agreements.
  • Proven experience in managing subcontractors, ensuring adherence to project specifications and timelines.
  • Experience with leading or assisting in the development of technical proposals, showcasing the ability to convey complex ideas effectively.
  • Competent in developing cost models, basis of estimates (BOEs), and Bill of Materials (BOM) for diverse projects.
  • Agile methodology proficiency, with experience in applying agile practices in development environments.

Team Dynamics:

  • Strong team collaboration and ability to engage in constructive feedback.
  • Clear communication skills, both verbal and written.
  • Adherence to schedules with a focused work ethic.
  • Receptive to professional growth and learning.
  • High quality standards and work pride.
  • Enthusiasm for the field of transportation simulation and technology.

Anticipated pay range for this position: $80,000-$100,000

Original Posting Date:


While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $65,000.00 - $117,500.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health. The company's global workforce of 47,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $15.4 billion for the fiscal year ended December 29, 2023.  For more information, visit

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [email protected].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

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