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Backend Python Software Engineer Jobs in Winchester, VA, US

41 backend python software engineer jobs from 26 companies hiring in Winchester, VA, US.

All jobs in Winchester, VA, USBackend Python Software Engineer 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
41 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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1w
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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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1d
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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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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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2w
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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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1d
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Senior Software Engineer (Backend) - Remote
Reston or United States
$99k-$168k/yr RemoteFull Time
ICF
ICFNASDAQ: ICFI: Provides strategic consulting and technology services to global organizations.
5+ YOEBachelor's degree; 5+ years software development; ability to obtain Federal Public Trust; US residence and work authorization; three of last five years in US.
TypeScript, JavaScript, Python, SQL, NestJS, RESTful API, ETL, S3, Docker, TypeORM, JWT, AWS, Apache Spark, PySpark, Pandas, NumPy, Vitest, Jest, pytest, Confluence, JIRA, PostgreSQL, MySQL, Aurora MySQL, Redshift, AWS CodeBuild, EMR Serverless, SSM, ESLint, Ruff
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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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Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
M1 Technology
M1 Technology: Developing mission-critical technology for the U.S. intelligence community.
Full stack software engineer with React/Angular/Vue or backend Java/Python, microservices, AWS, SQL and NoSQL, REST APIs; TS/SCI clearance with Polygraph
React, TypeScript, React Query, AWS, Lambda, DynamoDB, S3, API Gateway, PostgreSQL, MySQL, DynamoDB, MongoDB, RESTful APIs, NestJS, NodeJS, Camunda, Flowable, n8n.io, JIRA, Confluence, DevOps, CI/CD
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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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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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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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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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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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1w
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Senior Software Engineer (Command & Control)
Santa Barbara or Arlington or Reston
$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, API design; distributed systems; cloud (AWS); relational DBs.
Python, AWS, PostgreSQL, REST API, Docker, Kubernetes
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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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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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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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2w
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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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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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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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4w
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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 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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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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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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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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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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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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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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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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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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HiringCafe market data

Backend Python Software Engineer 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
41
Hiring companies
26
Fresh sample
56% new in 30d
Salary visibility
59% show pay

Companies appearing in this market

Booz Allen HamiltonUmbraVantorAcuityBase-2 SolutionsGame Plan TechM1 TechnologyNoetic Strategies

Work location mix in visible results

Onsite: 32Hybrid: 6Remote: 3

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