63 data science engineer jobs at 47 companies in Winchester, VA

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Lead Machine Learning / Data Science Engineer
Reston, Virginia, United States
$90k-$200k/yr HybridFull Time
CapTech
CapTech: Provides technology and management consulting services to large enterprises.
7+ YOE7+ years delivering data engineering and ML solutions on cloud platforms; technical leadership; hands-on with Python/Scala, SQL, Spark, Docker, Snowflake/Databricks; experience with LLMs, prompt engineering, and productionizing ML systems.
AWS, Azure, GCP, Python, Scala, SQL, Spark, NoSQL, Docker, Snowflake, Databricks, Azure SQL, Amazon RDS, LLMs, GPT, Claude, Mistral, MCP, RAG, LangChain, n8n, pydantic
2mo
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Data Engineer - Junior
Quantico, Virginia, United States
$94k-$157k/yr OnsiteFull Time
American Systems
American Systems: Providing strategic engineering and IT solutions for government programs.
0+ YOE0–3 years in data engineering; SQL and Python; bachelor’s in CS/IS/Engineering/Data Science; active TS/SCI clearance.
SQL, Python, Relational Databases
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Data Engineer
Chantilly, Virginia, United States
OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
Bachelor's in a quantitative field, experience in data science/analytics, proficiency in Python/R/Java and data libraries, containerization and CI/CD experience, infrastructure-as-code (Terraform/Ansible), and active Top Secret/SCI with Polygraph.
Python, R, Java, Pandas, NumPy, SciPy, RESTful APIs, Terraform, Ansible, Docker, Kubernetes, TensorFlow, PyTorch, Scikit-learn, Hadoop, Spark, STK, AWS GovCloud, SDLC, CI/CD, Test-driven development, DevSecOps
2w
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Data Automation Engineer
Arlington or Sterling
$99k-$206k/yr OnsiteFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
5+ YOEU.S. citizen with active Secret clearance (TS/SCI preferred), 5+ years automation/data engineering experience, strong Python and data pipeline/ETL skills, API and CI/CD experience, BS in CS/Data Science or HS+7 years.
Python, Git, Airflow, Prefect, Docker, Kubernetes, Kafka, Kinesis, Spark, Hadoop
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Senior AI Data Engineer
Herndon, Virginia, United States
OnsiteFull Time
Karsun Solutions
Karsun Solutions: Delivers enterprise IT modernization solutions to federal government agencies.
5+ YOEBachelor's in CS/CE/Data Science, 5+ years data engineering experience, 3+ years Databricks, 5+ years Python/PySpark, Airflow, AWS (S3/Glue/Lambda), MLOps and Generative AI integration experience.
Databricks, Delta Lake, Delta Live Tables, Databricks Workflows, Unity Catalog, Python, PySpark, Apache Airflow, LLMs, S3, Glue, Lambda
3w
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Data Engineer - TS/SCI with Polygraph
Chantilly, Virginia, United States
$221k-$299k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
10+ YOEActive TS/SCI with Polygraph required, 10+ years experience, BS in Computer Science or equivalent, expertise in data engineering, ETL, backend development, cloud, containerization, and CI/CD.
Agile Methodology, Java, Python, Angular, Java Script, Go, Elastic Search, Kafka, Airflow, AWS, Azure, GCP, Docker, Kubernetes, CI/CD
3w
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Data Engineer - TS/SCI with Polygraph
Chantilly, Virginia, United States
$221k-$299k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
10+ YOEActive TS/SCI with Polygraph required, 10+ years related experience, BS in Computer Science or equivalent, expertise in data engineering, ETL, backend development, cloud, containerization, and strong software lifecycle skills.
Java, Python, Angular, Java Script, Go, Elastic Search, Kafka, Airflow, AWS, Azure, GCP, Docker, Kubernetes, CI/CD
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Senior Data Engineer
Herndon, Virginia, United States
$150k-$175k/yr HybridFull Time
Dark Wolf Solutions
Dark Wolf Solutions: Provides cybersecurity and software development services to defense agencies.
8+ YOEUS citizen with active Secret clearance; B.S. in Computer Science (or equivalent) and 8+ years experience; strong Python, AWS, SQL/Trino, Apache Spark, dbt, and Kubernetes (Rancher) experience; DevSecOps and TDD practices.
Python, FastAPI, Django, Flask, JavaScript, Node.js, Express, Vue, Svelte, React, Java, Spring Boot, AWS, S3, RDS, EMR, Trino, Apache Spark, dbt, Rancher Kubernetes, Rancher RKE2, AWS EKS, Apache Airflow, HL7, FHIR, Mirth Connect, Great Expectations, OpenAPI, ORM
2w
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Data Analytics Engineer
Ashburn, Virginia, United States
HybridFull Time
Cardinal Technology Systems
Cardinal Technology Systems: Provides cybersecurity and IT solutions to government agencies.
1+ YOEU.S. security clearance (DoD Top Secret/DHS EOD/CBP Full BI/IT-I or SSBI), Bachelor’s in computer science or related, 1–3 years SQL and BI experience, Databricks/AWS exposure, Python (preferred).
SAP Business Objects, Oracle, Databricks, S3, EMR, Redshift, Glue, PowerBI, Tableau, Qlik, Python, Pandas, PySpark, SQL
1mo
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Data and AI Solution Engineer
Herndon, Virginia, United States
HybridFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
10+ YOEBachelor's in CS/Engineering/Data Science, 10+ years in IT solution or systems engineering, strong Python and generative AI experience, prompt engineering, cloud (AWS/Azure/GCP/OCI) knowledge, UI/UX demo design, RFI/RFP experience, TS/SCI clearance.
Python, GitHub Copilot, Cursor, AWS Bedrock, Jupyter, Snorkel, AWS, Azure, GCP, OCI
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Spacecraft Data Systems Engineer - Blue Ring
Reston or Huntsville or Denver or Seattle or Los Angeles
$134k-$203k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
8+ YOEB.S. in computer science/engineering/IT/applied math, 8+ years spacecraft development and operations, experience with Command & Telemetry Databases and CCSDS, proficiency in Java/Python/JavaScript/C/C++, familiarity with flight software and C2 tools, ability to work with cross-functional teams; U.S. work authorization required.
CCSDS, Java, Python, JavaScript, C, C++, Command and Telemetry Database (CTDB), Command and Control (C2), Flight Software (FSW), Jira, GitLab, CI/CD pipelines, Defense Biometric Identification System (DBIDS)
2mo
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Data Scientist / AI/ML Engineer (Imagery) VAWFH 1652
Reston, Virginia, United States
$100k-$250k/yr OnsiteFull Time
Global InfoTek
Global InfoTek: Develops advanced cybersecurity software and systems for defense agencies.
5+ YOE5-7 years in machine learning, computer vision, data science; strong Python and ML frameworks; image/video data experience; research-level algorithm understanding; Linux and Git proficiency; TS/SCI clearance; US citizenship.
Python, PyTorch, TensorFlow, Linux, Git, Docker
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Data Scientist
Reston, Virginia, United States
HybridFull Time
Bcore
Bcore: Bcore develops technology and intelligence solutions for national security missions.
3+ YOEActive TS/SCI clearance, Bachelor's in a technical field, 3+ years in data science/analytics/engineering, proficiency in Python and SQL, experience with AWS GovCloud data pipelines and ML, familiarity with containerized environments and data governance.
Python, SQL, PostreSQL, AWS GovCloud, Lambda, Glue, S3, Step Functions, AWS SageMaker, Apache Spark, Kafka, Apache NiFi, Tableau, Microsoft Power BI, SAFe, Scrum, IAM, VPN, SSH
1w
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ETL Developer / Data Engineer
Reston, Virginia, United States
$81k-$138k/yr HybridFull Time
ICF
ICFNASDAQ: ICFI: Provides strategic consulting and technology services to global organizations.
2+ YOEBachelor's in computer science or similar,2+ years SQL,1+ year SSIS development,experience with APIs,critical thinking and collaboration skills required.
SSIS, SQL, APIs
3d
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Data Scientist (76406)
Chantilly, Virginia, United States
$135k-$180k/yr HybridFull Time
Battelle
Battelle: Conducts scientific research and manages national laboratories for clients.
3+ YOEAdvanced data science experience applying machine learning, statistics, data engineering and multi-source data analysis for mission-critical government programs; active U.S. citizenship and TS/SCI with polygraph required.
2mo
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Data & AI Integration Engineer - Mid-Level
Reston, Virginia, United States
$86k-$138k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
5+ YOEBachelor’s in CS, data science, information systems, mathematics, statistics, engineering, or related field; 5-7 years data analytics/engineering; gov/defense enterprise experience; SQL and databases; ETL/ELT pipelines; cloud platforms; BI/tools; data warehousing; US citizenship with TS/SCI clearance
SQL, PostgreSQL, Microsoft SQL Server, Apache Airflow, Informatica, Talend, dbt, AWS, Azure, Azure Synapse, BigQuery, Power BI, Alteryx, Data Warehousing, ADLS, ADF
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Data Analytics Specialist
Dulles or Herndon
HybridFull Time
Airbus
AirbusEuronext Paris: AIR: Designs and manufactures commercial and military aircraft and space systems.
Bachelor's in Engineering/Computer Science/Data Science required; robust Python coding, API experience, data structures/algorithms; authorized to work in the US; ~10% travel; fluent English; 3–5 years analytics experience preferred; DevOps/cloud experience preferred.
Python, APIs, DevOps
1w
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Expert Data Scientist/Systems Engineer
Chantilly, Virginia, United States
$190k-$225k/yr OnsiteFull Time
Markon
Markon: Provides professional services and management consulting for government agencies.
10+ YOEActive TS/SCI with full-scope polygraph, bachelor’s in CS/data science or equivalent experience, minimum 10 years relevant experience, expertise with Docker/Kubernetes, Java/Python/JavaScript, graph databases and Cypher, data visualization and link analysis, cloud in high-security environments.
Docker, Kubernetes, Java, Python, JavaScript, Tableau, Cypher
1w
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Senior Environmental Data Management Specialist, EQuIS
Little Rock or Milwaukee or Montgomery or Kansas City or Dallas or Houston or Reston
$112k-$165k/yr HybridFull Time
Jacobs
JacobsNYSE: J: Global provider of professional engineering and technical services.
15+ YOEBachelor’s in environmental/science/engineering, 15+ years environmental data management experience, 5+ years using EQuIS modules, strong communication and troubleshooting skills.
EQuIS, EQuIS Professional, EQuIS EDP, EQuIS SPM, EQuIS Collect, EQuIS Enterprise
3w
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Quality Engineer Associate
Aldie, Virginia, United States
$75k-$113k/yr OnsiteFull Time
M.C. Dean
M.C. Dean: Design-build and systems integration for complex, mission-critical infrastructure.
0+ YOEBachelor of Science in Engineering required (preferably Industrial/Systems), 0+ years experience, quality assurance, process documentation, audits, data analysis, and process improvement using industry frameworks.
ISO, CMMI, Agile, Lean Six Sigma, PMBOK, ITIL