Transportation Engineer

Job Description

Description

Are you interested in improving and shaping the transportation industry with a group of intelligent and motivated individuals?  Consider joining the Leidos team operating the Federal Highway Administration (FHWA)’s Saxton Transportation Operations Laboratory (STOL) , a USDOT research lab focused on the improvement of transportation operations, safety, mobility, and environmental impacts.  STOL champions the integration of emerging technologies such as cooperative driving automation (CDA) and Vehicle-to-Everything (V2X) to revolutionize transportation.

Learn about STOL here : -fairbank-highway-research-center / labs / STOL

To support these goals, Leidos is seeking a Transportation Engineer to join a highly successful team in researching and developing Connected and Automated Vehicle (CAV) technologies to shape the future of transportation. We are looking for someone who is motivated by variety, thrives in a challenging environment, seeks professional growth, and will be a key part of a team developing and extending a variety of applications and components to improve results that impact the transportation industry.

Location :  This role will be expected to work full-time at the customer site in McLean, VA

Role Overview :

We are seeking a motivated Transportation Engineer with experience in simulation and traffic operations to join our McLean, Virginia group.  The successful candidate will engage in various projects aiming to develop and optimize the use of advanced technologies (such as intelligent transportation systems (ITS), CDA, C-V2X, CAV and AI-driven predictive modeling) to improve the safety and operation of multimodal transportation systems.

Key Responsibilities include but are not limited to :

• Develop, calibrate, and validate microscopic and mesoscopic traffic simulation models.
• Apply simulation tools to assess the safety, efficiency, and environmental impacts of advanced transportation strategies, including CAV and V2X applications.
• Support research into signal operations, signal control strategies, and traffic management applications.
• Collaborate with internal and external development teams to identify, understand, and resolve technical goals and challenges.
• Contribute to the development of Concept of Operations, system requirements, and technical guidance documents for transportation applications.
• Analyze simulation outputs and large-scale datasets to explain transportation system performance.
• Document findings through technical reports, presentations, and manuals tailored to both technical and practitioner audiences.
• Generate synthetic data using Generative AI methods (e.g., GANs or LLMs for tabular data synthesis) using available historical data and known distributions.
• Provide technical assistance to academia, government, and industry stakeholders in the use of ITS, CDA, and V2X technologies.
• Support proposal development, white papers, and technical briefings.

Required Qualifications :

Preferred Experience :

Anticipated salary for this role : $80,000 - $110,000

Come break things (in a good way). Then build them smarter.

We're the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.”

Original Posting : October 3, 2025

For U.S. Positions : 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 $57,850.00 - $104,575.00

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.