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Mid-level Software Engineer; Transportation​/Computer Vision

Job in McLean, Fairfax County, Virginia, USA
Listing for: Leidos Inc
Full Time position
Listed on 2026-03-03
Job specializations:
  • Software Development
    Software Engineer
Salary/Wage Range or Industry Benchmark: 95000 - 120000 USD Yearly USD 95000.00 120000.00 YEAR
Job Description & How to Apply Below
Position: mid-level Software Engineer (Transportation/Computer Vision)

Description

Join us in improving and shaping the future of the smart mobility with a group of intelligent, motivated, and dedicated individuals! Leidos operates the Federal Highway Administration's (FHWA) Saxton Transportation Operations Laboratory (STOL), a US Department of Transportation (USDOT) onsite R&D lab located at the Turner Fairbank Highway Research Center
. STOL's focus is on improving transportation system operations to achieve USDOT's safety, mobility, sustainability and equity goals. STOL spearheads a variety of exciting R&D projects involving emerging technologies, including but not limited to infrastructure and vehicle connectivity and automation, everything-in-the-loop simulation, and AI/ML modeling in a fast-paced and collaborative laboratory environment to solve novel transportation research problems.

Learn about STOL here:
(Use the "Apply for this Job" box below)./STOL

To promote these efforts, Leidos is looking for a onsite mid-level
Software Engineer to join our team!

CANDIDATE MUST:

be able to work onsite full time in McLean, VA AND have the Ability to obtain and maintain a Public Trust security clearance (which includes current three years immediate residency in the US).

Primary Responsibilities
  • Analyze and assess the team's existing ITS software systems to understand their architecture, and how they can be redesigned into more modular, scalable, and maintainable components.
  • Contribute to internal best practices for software development and lead knowledge sharing to support adoption across development teams.
  • Work with cross-functional internal team to determine technical feasibility of projects, breakdown project goals into software development tasks, and assist with overall effort and timeline estimation of planned work.
  • Lead the execution of planned technical work, including design work, addressing unplanned technical challenges, and being responsive to changes in customer needs.
  • Directly interact with on-site customer representatives and external stakeholders to communicate across technical disciplines as needed throughout a project's life cycle.
  • Lead development for research prototypes and proof-of-concepts for various intelligent transportation systems (ITS) applications across a variety of ITS devices, including infrastructure, vehicle, and cloud systems.
  • Participate in and help shape our open-source software process, triaging and addressing issues reported by external users and evaluating 3rd party code contributions.
  • Identify, document, and formulate approaches to addressing areas of technical debt.
  • Conduct hands-on test events and demonstrations, on-site at TFHRC and off-site at test facilities.
Minimal Qualifications
  • Interest in working with emerging technologies and shaping the future of transportation.
  • A Bachelor's degree in computer science or engineering with at least 4 years of professional experience in object-oriented software development, or a Master's degree with at least 2 years of professional experience in object-oriented software development.
  • Experience and familiarity with manual memory management in languages like C/C++.
  • Experience in developing solutions to open-ended research questions and developing novel approaches to solving problems.
  • Strong ability and interest to learn new problem domains, new skills, algorithms, and concepts.
  • Interest and motivation to develop software to answer valuable research questions to advance transportation technology.
  • Experience with Git.
  • Experience with Docker (including docker-compose).
  • Experience developing in an Agile framework using toolsets such as JIRA and Confluence.
  • Proficiency in software quality techniques and practices (automated unit testing, test-driven design/development, CI/CD pipelines with Git Hub Actions, static code analysis tools, etc.).
  • Understanding of mathematical fundamentals, including geometry, linear algebra, probability, graph theory, set theory, and statistics.
Preferred Qualifications
  • Extensive experience designing, implementing, and maintaining C++, Java, and Python software packages in a Linux environment.
  • Experience with Linux build systems and package management systems.
  • Experience with Kafka or similar message broker systems.
  • Experience with Robot Operating System (ROS).
  • Experience with user interface (UI) and/or front-end development.
  • Familiarity with distributed computing and cloud computing concepts.
  • Familiarity with one or more robotics concepts such as localization, path planning, perception, or sensor fusion.
  • Familiarity with simulation environments such as SUMO or CARLA, or other simulators built in Unreal or Unity.
  • Familiarity with existing CDA infrastructure standards and/or hardware such as those from SAE or IEEE.
  • Experience in a fast-paced dynamic R&D environment.
  • Experience as software engineering team lead.

Anticipated Salary range for this role is $95-$120k

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission…

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