56 backend python engineer jobs at 23 companies in Winchester, VA
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Backend Developer, Data Platform
Reston, Virginia, United States
$113k-$188k/yrHybridFull Time
Vantor: Providing AI-powered spatial intelligence and high-resolution Earth observation.
5+ YOE5+ years backend software engineering; strong Python; PostgreSQL; Elasticsearch; AWS (S3, RDS); TS/SCI clearance with CI polygraph; Bachelor's in CS/Systems Eng or equivalent; strong debugging and CI/CD skills.
Maxar Intelligence: Providing satellite imagery and geospatial intelligence for global security.
10+ YOEU.S. citizenship and active TS/SCI with CI polygraph required. 10+ years backend engineering experience, strong Python, PostgreSQL, Elasticsearch, AWS (S3, RDS), CI/CD, distributed systems, and bachelor's degree in CS or related field.
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
5+ YOE5+ years software development with Python; AWS serverless; REST/microservices; SQL/NoSQL; TS/SCI with poly; HS diploma or GED; Agile experience; Docker/Kubernetes; FastAPI; Terraform/Terragrunt; React optional.
GDITNYSE: GD: Delivers IT and mission services to government agencies.
8+ YOEActive TS/SCI with polygraph, DoD 8570 IAT Level II cert, 8+ years related experience, SharePoint on-prem and Online experience, PowerApps/Power Automate, back-end programming experience, systems engineering skills.
SharePoint, SharePoint Online, PowerApps, Power Automate, PowerShell, Python, JavaScript, Java, Perl, Ruby, C++
RedwireNYSE: RDW: Manufactures infrastructure and hardware components for diverse space missions.
1+ YOEU.S. citizen eligible for DoD Secret clearance, 1+ years backend/systems engineering experience, proficiency in Python/C++/Rust, experience with agentic systems, graph data modeling, real‑time pipelines, API design, and secure operations.
Trident Systems: Develops high-performance electronics for space and defense.
0+ YOEBachelor's in a technical discipline or equivalent, 0-2 years database engineering experience, strong relational DB experience (PostgreSQL, MySQL, SQL Server), schema design, performance tuning, and backend integration skills.
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
4+ YOE4+ years designing, developing, automating and managing MySQL/PostgreSQL/CloudSQL and other cloud native databases; 4+ years backend development with Golang, Python, or Java; 4+ years with AWS/Google Cloud/Microsoft Azure, Linux, Kubernetes, and Docker.
MySQL, PostgreSQL, CloudSQL, Golang, Python, Java, AWS, Google Cloud, Microsoft Azure, Linux, Kubernetes, Docker, Terraform, Chef, Ansible, Ceph Storage, Gluster, Orchestrator for MySQL, Percona MHA, Percona Galera, Vitess, Pure Storage
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEB.S. in CS or related, active TS/SCI clearance, 5+ years web development, strong React.js and TypeScript skills, backend experience with Flask/Express.js, Python, PostgreSQL, and Git.
Expedition Technology: Delivering advanced machine learning and signal processing for defense.
3+ YOEBackend software engineer with Python, Docker, Kubernetes, AWS; experience with ML pipelines; US citizenship with ability to obtain TS/SCI clearance.
Base-2 Solutions: Delivers engineering and technology services for national security.
9+ YOEActive TS/SCI with CI Polygraph; backend development, data engineering, API development with Python/FastAPI; PostgreSQL and Elasticsearch proficiency; experience with high-performance, high-volume systems.
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
5+ YOEBachelor's in CS/Engineering and 5+ years building backend services with Golang/Python, Kubernetes/Docker, AWS; 3+ years front-end experience; 1+ year Prometheus/Grafana monitoring.
The Swift Group: Providing engineering and cybersecurity services for national security missions.
10+ YOE10+ years building and operating backend services, APIs, and microservices; BS in Computer Science; US citizenship and active TS/SCI with Polygraph; proficiency with Java, Ansible/Python, Postgres/MySQL/MariaDB, Linux, AWS, containers, and Git workflows.
5+ YOEBS in CS or related, 5+ years backend experience (Python preferred), 3+ years building RESTful APIs, CI/CD and containerization experience, PostgreSQL and AWS familiarity, strong communication and security knowledge.
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
4-6 years backend and frontend development; 6-8 years AWS/Linux; 2-3 years AI/ML; strong Python/Java; Agile; SQL/NoSQL; cloud and microservices; security clearance with polygraph; Docker/containers.
Peraton: National security and mission-critical government technology services provider.
5+ YOEBS with 5+ years, MS with 3+ years, or PhD; strong Python and SQL; data pipelines and backend services; experience with Agentic AI; multiple data sources; cloud, containers, and deployment tooling; US Citizenship with FAA Public Trust suitability.
RenXTech: Technical and analytical support for national security missions.
6+ YOEU.S. citizenship and active TS/SCI with Polygraph required. 6+ years in backend/frontend/cloud/Linux, proficiency in Python and Java, AI/ML experience (2–3 yrs), SQL/NoSQL, search tools, containerization, and Agile tooling (Jira/Confluence/GitHub).
Insight Xcite: A mission-focused consulting firm that supports critical government programs through engineering, technology, cybersecurity, and analytics.
6+ YOEActive TS/SCI with Full-Scope Polygraph, 6+ years software development, frontend (React/Angular/JS/TS/HTML/CSS) and backend (Java/Python/Node.js) experience, API development, Git, and Agile.