2,054,977open jobs
121,331companies
243,082added this week
Browse all
Salary
$100k – $120k per year
Location
In office (McLean)
Seniority
Junior · 2+ years exp
Visa
H-1B filings in 12 months: 50 · for this role: 3 · green card filings: 24
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 29, 2026. First seen by Alion on Aug 18, 2026. Leidos scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Leidos is an American technology and engineering services company created in 2013 when Science Applications International Corporation split in two, with Leidos taking the technical services and solutions business. It is one of the largest suppliers to the United States government, working across defence programmes, intelligence systems, civil agencies including the Federal Aviation Administration, and healthcare services for the Department of Veterans Affairs. Headquartered in Reston, Virginia, the company also builds security detection products for airports and borders, and has concentrated recent investment on trusted artificial intelligence and autonomy for mission environments.

Are you interested in improving and shaping the transportation industry in a group of intelligent and motivated individuals? Leidos operates the Federal Highway Administration’s (FHWA) Saxton Transportation Operations Laboratory (STOL), a USDOT research lab focused on the improvement of transportation operations, safety, mobility, and environmental impacts. STOL provides a variety of services to support the advancement and deployment of emerging technologies, including vehicle automation and communication.

Leidos is seeking a talented Transportation Data Scientist at the junior to mid-level to support FHWA-funded projects at the intersection of AI, data science, and transportation. This role will involve assisting in the development and deployment of AI/ML models for applications such as vehicle load classification using weigh-in-motion (WIM) data and imagery, crash prediction in traffic management centers (TMCs), and creating data ecosystems for trustworthy AI. The ideal candidate will have foundational experience in AI model development, data integration, and stakeholder engagement, with a passion for exploring opportunities to apply AI in state-level transportation initiatives. This position offers the chance to contribute to innovation in a dynamic, federally supported research environment.

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

Candidate MUST:

Be currently located in the United States for the current three consecutive years and be eligible for a Public Trust Clearance.

https://careers.leidos.com/search/jobs?q=stol&ns_job_category=stol-jobs

Primary Responsibilities

  • Assist in conducting data and literature reviews, including targeted searches for AI methods, datasets, and technologies relevant to freight analytics, traffic safety, and operations (e.g., sensor fusion, computer vision, and multimodal AI).
  • Prepare and integrate datasets for AI use cases, including cleaning, normalizing, enriching, and fusing multi-source data (e.g., traffic logs, imagery, weather, and permitting records) while addressing quality issues like inconsistency, sparsity, and bias.
  • Contribute to the design, development, and deployment of AI/ML models for transportation applications.
  • Evaluate AI model performance under diverse conditions, such as varying data quality levels, and provide recommendations for improving model robustness, scalability, and trustworthiness in real-world transportation environments.
  • Support stakeholder outreach and engagement, including organizing peer exchanges, workshops, and technical briefings with state DOTs, MPOs, enforcement agencies, and vendors to gather insights on AI applications.
  • Collaborate with cross-functional teams to ensure project alignment with USDOT goals, including risk management, quality assurance, and compliance with federal standards.
  • Contribute to monthly progress reporting, risk mitigation, and iterative model refinement based on federal feedback.

Required Qualifications

  • Master’s degree in computer science, Data Science, Artificial Intelligence, Transportation Engineering, or a related field; Ph.D. preferred.
  • 2+ years of professional experience (NON-academic) in data science and AI/ML, with demonstrated familiarity in machine learning frameworks (e.g., TensorFlow, PyTorch, Scikit-learn), data processing tools (e.g., Pandas, NumPy), and AI techniques (e.g., deep learning, generative AI like GANs, computer vision, LLMs).
  • Must have HANDS-ON experience in AI Solution Development.
  • Strong experience in data preparation and integration, including ETL processes, handling multimodal data (e.g., imagery, sensor data, time-series), and addressing data quality challenges in real-world applications.
  • Strong analytical skills with familiarity in model evaluation metrics (e.g., AUC, accuracy, scalability) and testing AI systems under varied conditions.
  • Excellent communication and collaboration skills, with experience in stakeholder engagement, technical reporting, and presenting complex AI concepts to non-technical audiences.
  • Ability to work in a fast-paced, research-oriented environment with travel up to 20% for stakeholder meetings, site visits, or conference support.
  • Ability to obtain and maintain a Public Trust clearance (which includes three years of immediate residency in the US).
  • All applicants must be legally authorized to work in the United States.

Preferred Qualifications

  • Prior experience working with state DOTs or federal transportation agencies (e.g., FHWA, USDOT) on AI initiatives, including prototyping and developing AI application in ITS.
  • Familiarity with transportation-specific data sources (e.g., HSIS, SHRP2, NGSIM) and standards (e.g., SAE J2735 for V2X).
  • Experience in synthetic data generation, generative AI (e.g., LLMs), or physics-informed ML for transportation applications.
  • Knowledge of federal AI governance, risk management, and equity considerations in transportation.
  • Project management experience, including leading AI tasks in multi-agency initiatives or contributing to communities of practice (CoPs).
  • Publications or presentations in AI/transportation conferences (e.g., TRB, ITS America).

Anticipated salary range for this role is $100,000-$120,000

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

June 26, 2026

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 $87,100.00 - $157,450.00

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.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,054,977 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Data Science
Similar stack
Same company
McLean
Data Scientist Intern 4 hours ago
$40k – $90k per year · In office · Internship · PhD · Raleigh
Python
Apply
≈ $72k – $155k per year (Estimated) · In office · Full-Time · 3+ years exp · High School Diploma · Atlanta
Python
SQL
Analytics
Tableau
Power BI
Microsoft Excel
Apply
≈ $129k – $239k per year (Estimated) · Remote (likely United States) · Part-Time · 4+ years exp · Bachelor's Degree · San Francisco
Python
SQL
AI/ML
Machine Learning
Analytics
ETL/ELT
Apply
$101k – $160k per year · Equity · In office · Full-Time · 1+ year exp · Seattle
Python
SQL
Scala
Databases
Amazon Redshift
AI/ML
Hadoop
Spark
DevOps
AWS
AWS Lambda
Amazon S3
IAM
Amazon Kinesis
Analytics
ETL/ELT
AWS Glue
Dimensional Modeling
Apply
≈ $77k – $165k per year (Estimated) · Hybrid · Full-Time · Radnor
Python
SQL
Python
FastAPI
Pydantic
AI/ML
Spark
Airflow
Model Context Protocol
RAG
DevOps
GitLab CI
CI/CD
Git
AWS
AWS Lambda
IAM
Amazon ECS
QA
Pytest
Apply
≈ $88k – $212k per year (Estimated) · Hybrid · Full-Time · London · Bristol · Manchester
Python
JavaScript
C++
AI/ML
OpenCV
Multimodal AI
Computer Vision
TensorRT
PyTorch
Gaussian Splatting
CUDA
Machine Learning
DevOps
CI/CD
Git
Linux
Game Dev
Unity
Robotics
Nav2
ROS2
NVIDIA Omniverse
Open3D
Sensor Fusion
Path Planning
Autonomous Navigation
Apply
≈ $7.5k – $19k per year (Estimated) · In office · Full-Time · Phnom Penh
Python
JavaScript
Java
SQL
C#
C++
C++
TensorFlow C++
AI/ML
Scikit-learn
AI Agents
TensorFlow
PyTorch
Machine Learning
Frontend
Bootstrap
DevOps
GCP
Azure
Git
AWS
Analytics
Tableau
Power BI
Management
Agile
Apply
≈ $90k – $175k per year (Estimated) · Hybrid · Full-Time · London · Bristol · Manchester
JavaScript
TypeScript
AI/ML
Computer Vision
Frontend
React.js
Mobile
Capacitor
DevOps
Rest API
Azure
CI/CD
Git
Game Dev
Unity
Unreal Engine
Robotics
Isaac Sim
Digital Twin
Apply
BI-аналитик 27 days ago
≈ $22k – $55k per year (Estimated) · Hybrid · Moscow
Python
SQL
R
R
ggplot2
AI/ML
Pandas
NumPy
Apply
≈ $59k – $143k per year (Estimated) · In office · Full-Time · PhD · Singapore
Python
C++
C++
TensorFlow C++
AI/ML
JAX
AI Agents
TensorFlow
PyTorch
Agentic Workflows
DevOps
Git
Unix
Life Sciences
Next-Generation Sequencing
Apply
$108k – $195k per year · In office · Full-Time · 8+ years exp · Bachelor's Degree · Baltimore
Python
Python
pySpark
Databases
PostgreSQL
Oracle
Amazon Redshift
Amazon Aurora
AI/ML
Spark
DevOps
AWS
Amazon S3
Cybersecurity
FedRAMP
Zero Trust
Analytics
ETL/ELT
AWS Glue
Management
Agile
Scrum
Apply
Data Scientist 24 days ago
$92k – $167k per year · In office · Full-Time · 4+ years exp · Bachelor's Degree · Alexandria
Python
JavaScript
SQL
Analytics
ETL/ELT
Management
Agile
Apply
$131k – $237k per year · In office · TS/SCI · Full-Time · 12+ years exp · Fort Meade
Python
Java
SQL
AI/ML
AI Agents
LLM
RAG
LLMOps
DevOps
Terraform
Azure
CI/CD
AWS
Kubernetes
Apply
Data Engineer 1 month ago
$92k – $167k per year · In office · TS/SCI · Full-Time · 8+ years exp · Bachelor's Degree · Washington
Python
SQL
Databases
ElasticSearch
Apache Kafka
AI/ML
NumPy
DevOps
GCP
Kibana
Logstash
Azure
CI/CD
Git
AWS
Kubernetes
Grafana
Analytics
Tableau
Power BI
ETL/ELT
Management
Confluence
ServiceNow
Agile
Scrum
Apply
$108k – $195k per year · In office · TS/SCI · Full-Time · 8+ years exp · Bachelor's Degree · Washington
Python
JavaScript
SQL
Databases
Snowflake
Databricks
ElasticSearch
Apache Kafka
Amazon Redshift
AI/ML
Hadoop
Spark
Frontend
React.js
DevOps
Puppet
Ansible
GCP
Red Hat
OpenShift
Kibana
Chef
Logstash
Prometheus
Azure
CI/CD
Git
AWS
Kubernetes
Grafana
Configuration Management
Bitbucket
Amazon S3
Linux
Unix
Analytics
ETL/ELT
Apache NiFi
Management
Confluence
ServiceNow
Agile
Scrum
Apply
$162k – $185k per year · In office · Full-Time · 3+ years exp · Bachelor's Degree · McLean
Python
SQL
Python
Dask
AI/ML
Spark
Embeddings
Time Series
Machine Learning
DevOps
AWS
Apply
$197k – $225k per year · In office · Full-Time · 4+ years exp · Bachelor's Degree · Plano · McLean
Python
SQL
Scala
AI/ML
Spark
Time Series
Machine Learning
DevOps
AWS
Apply
$155k – $194k per year · In office · Top Secret · Full-Time · 8+ years exp · Bachelor's Degree · McLean
Python
SQL
R
R
Shiny
AI/ML
Scikit-learn
Computer Vision
LLM
Time Series
Machine Learning
DevOps
Azure
Git
Analytics
Tableau
Power BI
Seaborn
Matplotlib
Plotly
Apply
$124k – $156k per year · In office · TS/SCI · Full-Time · 5+ years exp · Bachelor's Degree · McLean
Python
JavaScript
C#
C++
Databases
PostgreSQL
Neo4j
Databricks
Oracle
MS SQL
ArangoDB
AI/ML
Machine Learning
Frontend
OpenLayers
DevOps
Docker
Kubernetes
Apache HTTP Server
Analytics
ETL/ELT
Apply
$97k – $110k per year · In office · Full-Time · 3+ years exp · Bachelor's Degree · McLean
Analytics
Tableau
Management
Agile
Apply
See all jobs
This is one of many
2,054,977 more open roles from verified company boards, updated every day.