472 python data jobs at 171 companies in Winchester, VA

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1w
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Senior Python Developer with Spark
Reston, Virginia, United States
$97k-$157k/yr HybridFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
8+ YOE8+ years Python data engineering with Apache Spark, advanced SQL, AWS (EMR, Redshift, S3, Glue), big data tooling, CI/CD (GitLab, Terraform), and strong performance optimization skills.
Python, Apache Spark, Hadoop, Hive, EMR, SQL, AWS, Redshift, S3, Glue, Lambda, Step Functions, EventBridge, GitLab, Terraform
2mo
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Data Scientist / Data Engineer
Reston or United States
RemoteFull Time
Game Plan Tech
Game Plan Tech: Provides secure cloud and AI solutions for government agencies.
3+ YOEProduction experience building data products; Python and SQL; cloud platforms; DoD RMF/IL4/IL5/IL6 knowledge; US citizenship with active DoD Secret clearance
Python, SQL, Spark/PySpark, dbt, Airflow, AWS GovCloud, Azure Government, GCP, Pandas, NumPy, scikit-learn, PyTorch, TensorFlow
3mo
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Data Engineer
Chantilly, Virginia, United States
OnsiteFull Time
KDA Consulting
KDA Consulting: Provides IT engineering and cloud services for intelligence missions.
Bachelor’s in CS/Engineering or related field; experience in data engineering, AWS data services; SQL and Python; large-scale data; TS/SCI with Polygraph.
Python, SQL, AWS, S3, Glue, Redshift, Lambda, EMR, Kinesis
2w
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Data Engineer
Chantilly, Virginia, United States
OnsiteFull Time
NS2 Mission
NS2 Mission: Delivers secure data management and analytics for national security.
3+ YOE3+ years data engineering experience, strong Python and SQL skills, ETL and data integration experience, familiarity with Palantir and cloud/big-data tools, strong analytic and communication skills.
Python, SQL, Palantir, Apache Spark, Hadoop, AWS, Azure, GCP, Apache Airflow, Prefect
1mo
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Data Engineer
Herndon, Virginia, United States
OnsiteFull Time
Bridge Core
Bridge Core: Provides technical services and cybersecurity solutions to government agencies.
11+ YOE11+ years experience; Bachelor's/Master's in IT or Engineering preferred; experience integrating diverse data streams, NiFi/Cribl, Splunk familiarity, Python, data modeling, ETL, and managing/troubleshooting data feeds.
NiFi, Cribl, Splunk, Python, ShellScript, Ansible, AWS, Microsoft Azure
1mo
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Data Engineer
Herndon, Virginia, United States
OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
5+ YOE5+ years software development with Python, experience building/maintaining data pipelines and ETL, Git/GitHub, Bash/Linux, common data formats, data validation and quality controls, and active TS/SCI with Poly required.
Python, Git, GitHub, JSON, XML, CSV, Bash, Linux, Elasticsearch, Kibana, AWS Lambda, EC2, S3
3mo
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Data Engineer
Reston, Virginia, United States
HybridFull Time
SZNS Solutions
SZNS Solutions: Provides specialized Google Cloud engineering and AI consulting services.
5+ YOEBachelor’s in CS/Engineering or equivalent; 5+ years data engineering in cloud; SQL and Python/Rust/Java; data pipelines (Kafka, Flink, Beam, Spark); data stores for AI; Google Cloud certs; US citizen.
Python, SQL, Kafka, Flink, Beam, Spark, Airflow, Google Cloud Platform, BigQuery, Dataflow, Pub/Sub, Cloud Composer, PostgreSQL, Firestore, MongoDB, Neo4j
1mo
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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
2mo
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Data Scientist
Herndon, Virginia, United States
HybridFull Time
NT Concepts
NT Concepts: Provides data and technology solutions for national security missions.
5+ YOE5+ years in data science or ML; experience with overhead imagery data and computer vision; Python, ML libraries (PyTorch); ETL pipelines; Git, Linux; security clearance eligible.
Python, PyTorch, Git, Linux
3mo
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Data Scientist
Chantilly or Herndon or McLean
OnsiteFull Time
VTG
VTG: Provides engineering and digital modernization solutions for national security.
5+ YOEActive TS/SCI with Poly; 5+ years in data science; degree in data science, CS, stats, math; proficiency in Python/R; ML frameworks; SQL; visualization; cloud.
Python, R, Scikit-learn, TensorFlow, PyTorch, SQL, Tableau, Power BI, Matplotlib, Seaborn, AWS, Azure, GCP
1mo
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Data Scientist
Sterling or United States
OnsiteFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
Bachelor's degree; experience with SQL, Python, R; data integration and modelling; CBP public trust or Top Secret clearance.
SQL, Python, R, DataRobot, Senzing
1w
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Data Scientist
Chantilly, Virginia, United States
$150k-$250k/yr OnsiteFull Time
GRVTY
GRVTY: Develops defense technology, cyber, and intelligence software solutions.
3+ YOEActive TS/SCI+Poly, 3+ years data science experience, STEM degree, Python, Linux/Windows, experience with cyber data and large unstructured text, strong analytics and modeling skills.
AI/ML, NLP, Python, Linux, Windows, Shodan, Censys.IO, AWS, DevOps
3w
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Data Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Fantom Corporation
Fantom Corporation: Provides specialized IT, engineering, and cybersecurity services for federal agencies.
3+ YOEMust be fully cleared with a recent polygraph and work fully onsite. Requires 3+ years data engineering experience, strong Python and advanced SQL skills, ETL/Palantir experience, API and data integration experience, and data quality/monitoring knowledge.
Python, SQL, Palantir, Palantir Foundry, AWS, Microsoft Azure, Google Cloud Platform (GCP), Apache Spark, Hadoop, Apache Airflow, Prefect
2mo
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Data Engineer, Mid
McLean or Chantilly
$62k-$141k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
SQL, Java, or Python and Spark; highly structured data; data modeling; Bachelor's degree; TS/SCI clearance with polygraph; experience with data pipelines and big data platforms.
SQL, Java, Python, Spark
3w
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Data Scientist
Chantilly, Virginia, United States
$62k-$141k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
Bachelor's in STEM required, TS/SCI with polygraph required; experience with Python or R, object-oriented programming, data processing frameworks, ML frameworks, EMR/structured and unstructured data, and developing predictive models.
Python, R, Pandas, Polars, Spark, scikit-learn, pytorch, tensorflow, SQL, NoSQL, MapReduce, Hadoop, Hive, EMR, Kafka, Gurobi, MySQL
1mo
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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
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
1mo
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Data Analyst
Chantilly, Virginia, United States
$104k-$218k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOERequires TS/SCI clearance (poly prior to start), DoD 8140 IAT II (e.g., CompTIA Security+), 5+ years data analysis experience, proficiency in Python, R, SQL, Tableau, data engineering and ML skills.
Microsoft Office Suite, Tableau, Python, R, SQL
1mo
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Data Scientist
McLean or Reston or Herndon or Chantilly
$50k-$290k/yr OnsiteFull Time
The Swift Group: Providing engineering and cybersecurity services for national security missions.
5+ YOEUS citizen with active TS/SCI + Polygraph; 5+ years in data engineering/analysis; strong Python, SQL/PostgreSQL (RDS), AWS data services, Tableau/Power BI, Git, Jira, Docker, and Apache Airflow experience.
RDS for PostgreSQL, PostgreSQL, Tableau, Power BI, Python, Git, Jira, Docker, Apache Airflow, AWS, AWS Cloud Data Migration Services
3w
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Data Engineer
Hanover or Chantilly
OnsiteFull Time
AnaVation
AnaVation: Providing technical engineering and cybersecurity solutions for federal agencies.
3+ YOETop Secret clearance, Bachelor’s degree, 3+ years data engineering experience, IAT II (CompTIA Security+), ServiceNow data integration experience, proficiency with SQL and Python, REST/SOAP APIs, and Linux; federal experience preferred.
ServiceNow, SQL, Python, REST, SOAP, Linux, Microsoft Azure, AWS, IntegrationHub, Flow Designer, Import Sets, Transform Maps, CMDB, CSDM