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Backend Python Developer Jobs in Winchester, VA, US

42 backend python developer jobs from 25 companies hiring in Winchester, VA, US.

All jobs in Winchester, VA, USBackend Python Developer Jobs in United States
Nearby:Front Royal·Martinsburg·Leesburg·Ashburn·Berryville·Hagerstown·Frederick·South Riding·Purcellville·Sterling·Strasburg·Ballenger Creek·Centreville·Linton Hall·Germantown·Reston·Oak Hill·Herndon·Chantilly
42 jobs- Winchester • 50 miles
1mo
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Backend Software Engineer
Reston, Virginia, United States
RemoteFull Time
Game Plan Tech
Game Plan Tech: Building secure cloud and AI systems for government.
Backend developer skilled in Java or Python, databases (SQL/NoSQL), Git/CI/CD, security, containers (Kubernetes), and cloud platforms (GCP/AWS/Azure).
Java, Python, Git, Kubernetes, Docker, CI/CD, Cloud Platforms, REST API, SQL, NoSQL
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4w
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Backend Developer, Data Platform
Reston, Virginia, United States
$113k-$188k/yr HybridFull Time
Vantor
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.
Python, PostgreSQL, Elasticsearch, AWS, S3, RDS, Docker, OpenShift, Helm, Gitlab CI, CI/CD
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6d
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Backend Software Engineer
Gaithersburg or Alexandria or Chantilly or St. Louis or Tucson
OnsiteFull Time
Noetic Strategies
Noetic Strategies: Provides cybersecurity, software development, and IT services to government agencies.
8+ YOEUS citizen; TS/SCI with poly; BS in CS/SE with 8–12 yrs (MS with 6–10); Java or Python; REST APIs; SQL; Linux; ability to work independently.
Java, Python, REST, SQL, Linux, Apache Airflow, Spring Boot, Django, GitLab, Jenkins, Docker, OpenShift, AWS, Azure, Agile
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1w
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Back End Developer
Springfield, Virginia, United States
OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
8+ YOEBachelor's degree in Computer Science or related field with 8+ years of back-end experience; strong proficiency in Python, Java, C#, Ruby, or Node.js; SQL/NoSQL databases; API design (REST/GraphQL); cloud and containers (Docker/Kubernetes); security best practices for classified environments.
Python, Java, C#, Ruby, Node.js, SQL, NoSQL, REST, GraphQL, Docker, Kubernetes, Terraform, Ansible, Kafka
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20h
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Senior Backend Software Engineer
El Segundo or Chantilly or Colorado Springs
$129k-$194k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
8+ YOE8+ years in software/data architecture; strong cloud-native data-intensive software; experience leading teams; security clearance eligibility; onsite in El Segundo, CA with possible relocation.
Java, Python, Go, Kubernetes, Apache Airflow, Apache Spark, Neo4j, AWS Neptune, Palantir Warp Core, CKAD
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2mo
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Modeling and Simulation HPC Back End Software Developer
Frederick, Maryland, United States
$94k-$198k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides technology and expertise for national security and government missions.
5+ YOETS/SCI with polygraph; BS in Computer Science, Modeling and Simulations or related field; 5+ years’ experience; Python, C Shell, Slurm; Unix/HPC experience; strong communication; ability to brief senior leaders.
Python, C Shell, Slurm, UNIX, High-Performance Computing
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2w
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Jr Full Stack Developer (Python/React.js)
Reston, Virginia, United States
$70k-$100k/yr OnsiteFull Time
Inadev
Inadev: Provides digital engineering and AI solutions to government and businesses.
2+ YOEBachelor's in CS or Engineering; 2+ years Python backend and 2+ years React frontend; experience with AI-assisted development tools; microservices; Agile with JIRA; strong communication.
Python, React.js, GitHub Copilot, REST, GraphQL, AWS, Docker, Kubernetes, JIRA, PostgreSQL, MongoDB, DynamoDB, S3, EC2, Lambda, RDS
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3w
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SharePoint Engineer (Back End) - TS/SCI
Annapolis Junction or Sterling
$147k-$199k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
8+ YOE8+ years of related experience; active TS/SCI clearance with CI poly; DoD 8570 IAT II certs; Bachelor’s degree; experience with SharePoint, security controls, PowerApps, Power Automate, and back-end languages.
SharePoint, PowerApps, Power Automate, Azure, Microsoft 365, Python, JavaScript, RBAC, MFA, DLP
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1mo
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Software Engineer Level 5
Reston, Virginia, United States
OnsiteFull Time
Base-2 Solutions
Base-2 Solutions: Delivers engineering and technology services for national security.
Backend development, data engineering, API development; Python, FastAPI, PostgreSQL, Elasticsearch; TS/SCI with CI Polygraph.
Python, FastAPI, PostgreSQL, Elasticsearch
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1mo
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Full Stack Developer
Chantilly or McLean
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOE2+ years in Java, Python, JavaScript; 2+ years in software development; DevOps (GitHub); backend and frontend development; TS/SCI clearance with polygraph; HS diploma or GED.
Java, Python, JavaScript, HTML, GitHub, CI/CD, DevOps
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2w
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Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Ardent Principles
Ardent Principles: Provides specialized technology and program management services to government agencies.
Active TS/SCI with Full Scope Polygraph; onsite in Chantilly, VA; backend software development with Java, Python, RESTful APIs; AWS; Linux (CentOS); Solr/Elastic; SPARC/PySpark; middleware and backend design.
Java, Python, JavaScript, Bash, Spring Boot, RESTful APIs, Linux (CentOS), AWS, Solr, Elastic, SPARC, PySpark, JIRA, GITHUB
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1w
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Software Developer (Systems Software)
Chantilly, Virginia, United States
OnsiteFull Time
Acuity
Acuity: Provides digital strategy and technology consulting for federal agencies.
Backend Python, PostgreSQL, AWS (SQS); frontend HTML/CSS/JavaScript; Git; user-centered design; cloud full-stack development.
Python, PostgreSQL, AWS SQS, HTML, CSS, JavaScript, Git, Docker, Kubernetes
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1mo
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Full Stack Developer
Chantilly, Virginia, United States
OnsiteFull Time
Bespoke Technologies
Bespoke Technologies: Provides technical engineering and data solutions for national security.
5+ YOE5-7 years of experience in backend and frontend development, cloud platforms (AWS/Azure), React.js, HTML/CSS, Java or C#, SQL/MongoDB, Python, and API development. Poly clearance required; on-site Chantilly, VA.
React.js, Java, C#, SQL, MongoDB, Python, Elasticsearch, AWS, Azure, HTML, CSS, TypeScript
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3w
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PySpark Engineer
Chantilly, Virginia, United States
OnsiteFull Time
M1 Technology
M1 Technology: Developing mission-critical technology for the U.S. intelligence community.
Experience with big data using Spark/PySpark; Solr/Elasticsearch; data quality; RegEx; Java/JavaScript/Bash/Python; AWS; Java 8+ (upgrading to 17); Jira and GitHub; Spring Boot and RESTful APIs; Linux (CentOS); middleware/backend development.
Spark, PySpark, Solr, Elasticsearch, RegEx, Java, JavaScript, Bash, Python, AWS, Jira, GitHub, Spring Boot, RESTful APIs, Linux, CentOS
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1w
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Senior Software Engineer (Command & Control)
Reston, Virginia, United States
$155k-$185k/yr OnsiteFull Time
Umbra
Umbra: Operates high-resolution synthetic aperture radar imaging satellites.
5+ YOEBachelor's in CS/engineering; 5-8+ years backend experience; Python backend/API design; cloud (AWS); distributed systems; Postgres; strong collaboration.
Python, REST, AWS, PostgreSQL, Docker, Kubernetes, Rust
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2w
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Software Engineer - Frontend
Reston, Virginia, United States
$91k-$142k/yr HybridFull Time
Noblis
Noblis: Provides science and technology solutions for government missions.
3+ YOEFront-end software engineer with Angular or React, Python backend, TS/SCI clearance, US citizenship.
React, Angular, Python, AWS, Git, CI/CD, REST API
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1mo
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Senior Software Developer - Clearance Required
Reston or Joint Base Anacostia-Bolling
HybridMultiple Commitments Available
Cydecor
Cydecor: Providing technology solutions and mission support to defense agencies.
6+ YOE6+ years in distributed software development; frontend tech stack (Vue, JavaScript, TypeScript); backend services; Agile; TS/SCI clearance preferred.
Vue, JavaScript, TypeScript, React, Angular, Linux, Git, Jira, Confluence, Artifactory, APIs, Relational databases, NoSQL, Agile, Security-focused development, CI/CD, Python, Java, Docker, Kubernetes, OpenShift, Jenkins, Keycloak, OAuth2, JWT, SonarQube, OWASP ZAP, Fortify, CI/CD pipelines, AWS, Azure, CI/CD
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1mo
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Software Engineer SME
Herndon, Virginia, United States
$50k-$290k/yr OnsiteFull Time
The Swift Group: Providing engineering and cybersecurity services for national security missions.
10+ YOE10+ years backend software/platform experience; strong Java, Ansible/Python, Postgres/MySQL/MariaDB, Linux, AWS; microservices and RESTful APIs; cloud deployment; containerization; Git workflows; TS/SCI with Poly clearance required; BSCS or equivalent.
Java, Ansible, Python, PostgreSQL, MySQL, MariaDB, Linux, AWS, Git, GitLab, GitHub
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1w
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Full Stack Software Engineer
Reston or Chicago or Plano
$123k-$161k/yr HybridFull Time
Fannie Mae
Fannie MaeOTCQB: FNMA: Providing liquidity and stability to the U.S. housing market.
2+ YOE2 years SDLC experience; backend Java/TypeScript/Python; Angular frontend; SQL/NoSQL; AWS; DevOps; GenAI tools; mortgage domain knowledge.
Node.js, Python, Java, Spring Boot, Angular, NgRx, RxJS, TypeScript, JavaScript, Git, Jenkins, Docker, Terraform, AWS CloudFormation, DynamoDB, PostgreSQL, Oracle, Postman, Putty, IntelliJ, VSCode
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1d
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Staff Software Engineer, Defense and Consulting Engineering
Reston or New York
$207k-$300k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
8+ YOEBachelor's degree or equivalent; 8 years software development; 5 years full-stack across backend (Java, Python, Go, C++) and frontend (JavaScript/TypeScript, HTML/CSS); 5 years testing/launching software; 3 years design/architecture.
Java, Python, Go, C++, JavaScript, TypeScript, HTML, CSS
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2mo
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Senior Full-Stack Engineer
Culver City or Linthicum or Allen or Woodcliff Lake or Chicago or Orlando or Baton Rouge or Waltham or Phoenix or Harrisburg or West Valley City or Austin or Alpharetta or San Diego or Indianapolis or Lexington or Parma or Little Rock or Asheville or Birmingham or Chantilly or Washington or Brentwood or Plantation or Fort Collins or San Mateo or Schaumburg or Brooklyn
$140k-$180k/yr OnsiteFull Time
Motorola Solutions
Motorola SolutionsNYSE: MSI: Provides safety and security technology for government and enterprise.
7+ YOE7+ years in software development; Bachelor's degree in CS/Engineering; backend (Node.js) and frontend (React) experience; API integrations; cloud and database experience.
Node.js, HapiJS, Python, JavaScript, React, SQL, Serverless, Lambda, CloudFormation, Elastic Beanstalk, EC2, VPC, DynamoDB, RDS, G Suite, Microsoft Graph, Okta, OneLogin, Slack, Linux, Docker, Datadog, CloudWatch, MQTT, log/data pipelines
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1w
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AWS Geospatial Software Engineer
Springfield or Chantilly or McLean or Reston
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
5+ YOE5+ years software with cloud-first development; 5+ years backend (Java, Python, Go, C++), frontend (JavaScript/TypeScript/HTML/CSS); 3+ years geospatial data processing and spatial algorithms; 3+ years AWS services and cloud-native patterns; 3+ years Infrastructure as Code; containerization experience; TS/SCI with polygraph; Bachelor's degree.
Java, Python, Go, C++, JavaScript, TypeScript, HTML, CSS, AWS, ECS, EKS, Lambda, SQS, SNS, EC2, RDS, DynamoDB, IAM, Terraform, CloudFormation, CDK, Docker, Kubernetes
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2mo
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Sr. Web Application Developer #1703183
Chantilly, Virginia, United States
$121k-$135k/yr OnsiteFull Time
Network Designs, Inc.
Network Designs, Inc.: Provides IT, network, and cybersecurity solutions to government agencies.
8+ YOEDesign, develop, test web apps; US citizenship; active TS clearance with SCI access and CI polygraph; onsite Chantilly, VA; 8+ years web development; BS in CS/Software Engineering; SAFe and agile experience; 508 compliance; modern frontend and backend tech; cloud and DevSecOps.
Angular, React, .NET C#, Python, Node.js, JavaScript, TypeScript, HTML5, CSS3, Bootstrap, MySQL, PostgreSQL, Microsoft SQL, Elasticsearch, RabbitMQ, Redis, Docker, Kubernetes, AWS GovCloud, SC2S, C2S, DevSecOps
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2mo
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Scientific Software Engineer (Full Stack)
Frederick, Maryland, United States
$115k-$125k/yr HybridFull Time
Axle Informatics
Axle Informatics: Provides bioscience and IT services for healthcare research organizations.
Bachelor’s or master’s in computer science or software engineering; full-stack data-intensive apps; Python backend (FastAPI/Litestar); React/TypeScript frontend; WebGL visualizations; containerized cloud deployments.
Python, FastAPI, Litestar, React, TypeScript, Deck.gl, PixiJS, Plotly, gRPC, GraphQL, Kubernetes, Docker, Redis, WebSockets, SSE
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2w
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Staff Software Developer (TS/SCI)
Herndon, Virginia, United States
$92k-$195k/yr OnsiteFull Time
Maxar Intelligence
Maxar Intelligence: Providing satellite imagery and geospatial intelligence for global security.
5+ YOEUS citizen with TS/SCI clearance and CI poly; BS in CS/Software Eng; 5+ years backend software dev; Java/Python/JS; REST APIs with Spring Boot; Docker/Kubernetes/OpenShift; Jenkins/Git/Helm; Linux scripting; on-site in Herndon, VA.
Java, Python, JavaScript, Spring Boot, Docker, Kubernetes, OpenShift, Rancher, Jenkins, Git, Bitbucket, Gradle, Bash, Shell, OpenSearch, Elasticsearch, Keycloak, Fluent Bit, Cesium, PostgreSQL
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1mo
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Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Bridge Core
Bridge Core: Provides technical services and cybersecurity solutions to government agencies.
Java, Spring Boot, AWS backend; DevSecOps; Scrum; REST APIs; EC2, Git, Jenkins, CloudFormation; XML/JSON/YAML; team collaboration.
Java, Spring, AWS, Git, Jenkins, Rundeck, CloudFormation, REST API, Docker, Kubernetes, Python, Elasticsearch, Kibana, XML, JSON, YAML, IAM, Zero Trust, EC2
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1mo
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Principal Software Engineer – Systems & Delivery (Mission Ground Systems)
Chantilly, Virginia, United States
OnsiteFull Time
Lynk Global
Lynk Global: Enables direct satellite-to-phone connectivity for standard mobile devices.
8+ YOE8+ years software engineering; Rust, Python, or C/C++; backend systems and APIs; cloud (AWS); break down problems; improve reliability; AI-assisted tools.
Rust, Python, JavaScript/TypeScript, Bash, C/C++, React, AWS, Proxmox, Terraform, Ansible, Packer, GitLab CI/CD, Claude Code, Codex, Linux
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1mo
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Lead Software Engineer (Big Data / Platform Architect)
Sterling, Virginia, United States
OnsiteFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
6+ YOE4-8 years backend and frontend, 6-8 years AWS/Linux, 2-4 years AI/ML, strong Python/Java, Agile, SQL/NoSQL, cloud and search tech.
Python, Java, Angular, AWS, Linux, SQL, NoSQL, ElasticSearch, Solr, OpenSearch, ETL, Docker, Podman
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1mo
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Software Developer (Automation & Distributed Integration Systems)
Ashburn, Virginia, United States
$115k-$117k/yr HybridFull Time
Dobbs Defense Solutions
Dobbs Defense Solutions: Providing IT and cybersecurity solutions for government missions.
5+ YOE5+ years software testing and test automation; strong C#/.NET Core; experience with backend services, APIs, distributed systems; CI/CD; test frameworks.
C#, NET Core, PowerShell, Python, HTTP/REST, TCP/IP, Sockets, xUnit, NUnit, MSTest, Git, CI/CD, Postman, Newman, RestAssured, Docker
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1mo
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Software Developer, Journeyman
Herndon, Virginia, United States
$80k-$128k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
2+ YOESoftware development experience with hands-on coding, testing, and debugging; CI/CD pipelines; Git; web/backend frameworks; RMF/ATO considerations (desired).
Git, CI/CD, Containerization, Cloud services, PowerShell, Python
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HiringCafe market data

Backend Python Developer Jobs market signals in Winchester, VA, US

These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.

Open jobs
42
Hiring companies
25
Fresh sample
55% new in 30d
Salary visibility
57% show pay

Companies appearing in this market

Booz Allen HamiltonM1 TechnologyUmbraVantorAcuityBase-2 SolutionsGame Plan TechNoetic Strategies

Work location mix in visible results

Onsite: 34Hybrid: 6Remote: 2

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