1mo
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Python Developer (Mid-Senior)
Chantilly, Virginia, United States
OnsiteFull Time
10+ YOE10+ years Python development; FastAPI; AWS; TS/SCI with polygraph; U.S. citizenship; Bachelor's degree or equivalent experience; on-site in Chantilly, VA.
Python, FastAPI, SQLAlchemy, AWS, Kubernetes, Jenkins, GitHub, OpenSearch, Elastic, Airflow, PySpark, Trino, Linux, Docker, Helm, Makefiles, Java, Perl, C, C++, HTML, JavaScript, JSON
3d
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Software Engineer Level 4
Reston, Virginia, United States
OnsiteFull Time
Active TS/SCI with CI Polygraph; backend development, data engineering, API development; proficiency with Python, FastAPI, PostgreSQL, and Elasticsearch; experience with scalable, high-volume systems.
Python, FastAPI, PostgreSQL, Elasticsearch
3w
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Full Stack Developer
Chantilly, Virginia, United States
$112k-$222k/yr OnsiteFull Time
5+ YOE5+ years software development experience with Python (Flask/Django/FastAPI), APIs, database/datalayer work, front-end development (JavaScript/React/Angular/Vue), cloud (AWS), containers, and Agile/Scrum; active TS/SCI with Poly required; US citizenship and unrestricted work authorization required.
Python, Flask, Django, FastAPI, SQL, SQLAlchemy, JavaScript, TypeScript, CSS, React, Angular, Vue, Amazon Web Services (AWS), uv, ruff, pyright, pytest, coverage, Selenium, Karma, WordPress, MongoDB
7h
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Full Stack Developer
Florida or Herndon or Texas or Virtual
RemoteFull Time
Experience building full-stack systems with Python/FastAPI, JavaScript/TypeScript and React, REST APIs, PostgreSQL, Docker, Git; bachelor\u0002s degree in a technical field required.
FastAPI, Kafka, PostgreSQL, Docker, React, TypeScript, WebSockets, Mapbox, REST APIs, MongoDB, OpenSearch/Elastic, js, Tailwind CSS, shadcn/ui, OAuth, JWT, Keycloak, Auth0, Git, GitHub, Jira, Confluence, GitHub Actions, ArgoCD, Kubernetes
2d
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Full Stack Developer
Washington or Ashburn or Manassas
HybridFull Time
5+ YOE5+ years full-stack experience with Python, FastAPI, ReactJS, PostgreSQL, Docker and AWS; CI/CD and TDD practices; public trust clearance eligibility; bachelor's in CS or equivalent.
Python, FastAPI, ReactJS, PostgreSQL, Docker, AWS, ECS, EKS, OpenAPI/Swagger, pytest, Jest, React Testing Library
1w
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Full Stack Developer
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOE5+ years Python experience, familiarity with Flask/Django/FastAPI, SQL/ORM, JavaScript/TypeScript front-end frameworks, unit/integration testing, containerized AWS deployments, and security clearance eligibility.
Python, Flask, Django, FastAPI, SQL, SQLAlchemy, JavaScript, TypeScript, CSS, React, Angular, Vue, Docker, Kubernetes, AWS, RESTful APIs
1mo
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Back End Software Engineer
Chantilly, Virginia, United States
$87k-$198k/yr OnsiteFull Time
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.
Python, AWS, Docker, Kubernetes, FastAPI, Terraform, Terragrunt, REST, SQL, NoSQL, React
1mo
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Full Stack Developer
Chantilly, Virginia, United States
$87k-$198k/yr OnsiteFull Time
6+ YOE6+ years AWS (serverless), Python/JavaScript, FastAPI, RESTful APIs, microservices; frontend React/Angular/Vue; Docker/Kubernetes; SQL/NoSQL; Agile; TS/SCI with polygraph; HS diploma or GED.
AWS, Python, JavaScript, FastAPI, RESTful APIs, Microservices, React, Angular, Vue, Docker, Kubernetes, SQL, NoSQL, Terraform (optional)
1w
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Full Stack Developer
Chantilly, Virginia, United States
$150k-$200k/yr OnsiteFull Time
5+ YOEActive TS/SCI+Poly required. 5+ years Python (Flask/Django/FastAPI), 2+ years SQL (SQLAlchemy), 1+ years JavaScript/TypeScript/CSS, React/Angular/Vue, AWS, container deployment; strong communication and critical thinking.
Python, Flask, Django, FastAPI, SQL, SQLAlchemy, JavaScript, TypeScript, CSS, React, Angular, Vue, AWS
2w
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Full Stack Developer
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOEActive polygraph clearance required. 5+ years Python (Flask/Django/FastAPI), 2–3 years SQL/SQLAlchemy, 0.5–3 years JavaScript/TypeScript/CSS and React/Angular/Vue, 1–3 years AWS and container deployment experience.
Python, Flask, Django, FastAPI, SQL, SQLAlchemy, JavaScript, TypeScript, CSS, React, Angular, Vue, AWS
1mo
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26-1106: Full Stack Python Developer - Herndon, VA
Herndon, Virginia, United States
OnsiteFull Time
5+ YOE5+ years software engineering with Python and web app development; experience with Flask/FastAPI, cloud-native delivery (Docker/Kubernetes), CI/CD, Databricks/Spark, search/graph platforms, and modern front-end frameworks.
Python, Flask, FastAPI, Databricks, Spark, Elasticsearch, Neo4j, Docker, Kubernetes, Git, React, Angular, Vue, CI/CD, LLMs, RAG
2w
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Full Stack Software Developer
Chantilly, Virginia, United States
$50k-$290k/yr OnsiteFull Time
The Swift Group: Providing engineering and cybersecurity services for national security missions.
5+ YOE5+ years Python (Flask/Django/FastAPI), 2–3 years SQL/ORM, 1–3 years JS/TS/CSS and React/Angular/Vue, 1–3 years AWS and container deployment, US citizenship and active TS/SCI with Polygraph required.
Python, Flask, Django, FastAPI, SQL, SQLAlchemy, JavaScript, TypeScript, CSS, React, Angular, Vue, AWS, Containers
1mo
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Full Stack Software Engineer
Chantilly, Virginia, United States
$146k-$228k/yr OnsiteFull Time
6+ YOEActive TS/SCI clearance with Polygraph, US citizenship, 6+ years experience (varies by degree), proficiency in Python, React/Angular, FastAPI/REST, cloud (AWS/Azure/GCP), Docker/Kubernetes, PostgreSQL/MongoDB, CI/CD and Git workflows.
Python, React, Angular, FastAPI, RESTful APIs, Node.js, Typescript, Vue, AWS, Azure, GCP, Docker, Kubernetes, PostgreSQL, MongoDB, Git, GitHub, GitLab, CI/CD, Linux/Unix
2mo
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Senior AI/ML Software Engineer
Annapolis Junction or Herndon or Reston
$146k-$234k/yr HybridFull Time
12+ YOEBS with 12+ years, MS with 10+ years, or PhD with 7+ years in AI/ML; hands-on agentic systems; strong Python 3.12+; workflow orchestration; LLM APIs; full-stack (FastAPI/React); observability; pre-commit; US citizenship.
Python, LangChain, LangGraph, DeepAgents, Airflow, Prefect, Celery, OpenAI API, Anthropic Claude, AWS Bedrock, Ollama, FastAPI, React, Docker, PostgreSQL
2w
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Software Engineer / Developer (DevSecOps / Full Stack)
Charlottesville, Virginia, United States
OnsiteFull Time
4+ YOETS/SCI clearance, DoD 8140 IAT Level II, BS or equivalent experience, 4+ years DoD/federal software development experience; proficiency with Python, Java, JavaScript/TypeScript, AWS GovCloud, Terraform, GitLab CI/CD, Docker/Kubernetes.
Microsoft Copilot, Python, Java, JavaScript, TypeScript, React, Angular, Spring Boot, FastAPI, Express.js, GitLab CI/CD, Terraform, AWS GovCloud, EC2, ECS, EKS, Lambda, S3, IAM, Docker, Kubernetes, SonarQube, JSON, YAML, OpenAPI, Swagger, PostgreSQL, DynamoDB, MongoDB, Amazon SQS, Kafka, Jira, Confluence
1mo
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Data Engineer
Springfield, Virginia, United States
$60k-$180k/yr OnsiteFull Time
10+ YOEActive TS/SCI clearance; BS/MS in CS/Engineering or related field; 10+ years in data engineering or software development; strong Python (pandas, PySpark, FastAPI); cloud experience (AWS/Azure); Kafka, Airflow; database internals; data governance and AI/ML integration.
Python, Pandas, PySpark, FastAPI, AWS, Azure, Kafka, Airflow, PostgreSQL, MySQL, ElasticSearch, DynamoDB, Redis, S3, Lambda, Glue, Step Functions, Redshift, BigQuery, Kubernetes, Docker
4w
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Senior Developer - Generative AI Platform and Mission Support
Herndon, Virginia, United States
$146k-$234k/yr OnsiteFull Time
7+ YOESenior developer with 7+ years (PhD) / 10+ years (MS) / 12+ years (BS) experience in software/platform development; strong Python production experience, cloud (AWS), Docker/Kubernetes, PostgreSQL/SQL, CI/CD, Git; US citizen able to obtain Public Trust.
Python, JavaScript, TypeScript, Rust, FastAPI, Docker, Kubernetes, AWS, PostgreSQL, SQL, Git, Terraform, React, LLM
4w
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Principal Software Engineer
Fairfax, Virginia, United States
OnsiteFull Time
9+ YOEBachelor's in CS/Software Eng/Data Science (or equivalent experience), 9+ years related experience (7+ with graduate degree) with Python, Linux/Windows, databases, JSON/REST, Git/SVN, and production-quality software development.
Python, Linux, Windows, Android, JSON, CSV, XML, REST APIs, sockets, message queues, PostgreSQL, SQLite, InfluxDB, object storage, Git, SVN, Flask, FastAPI, Django, Dash, Docker, CI/CD pipelines
2w
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Full Stack Developer
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOEActive Top Secret/SCI with Poly required. Bachelor's degree or equivalent. 5+ years Python (Flask/Django/FastAPI), 2–3 years SQL (SQLAlchemy), 6mo–3yrs JavaScript/TypeScript/CSS, 6mo–3yrs React/Angular/Vue, 1–3yrs AWS and container deployment experience.
Python, Flask, Django, FastAPI, SQL, SQLAlchemy, JavaScript, TypeScript, CSS, React, Angular, Vue, AWS
2d
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Machine Learning Engineer
Chantilly, Virginia, United States
OnsiteFull Time
3+ YOEActive TS/SCI+CI poly, bachelor\u0002s with minimum 3 years experience, proficiency in Python and SQL, familiarity with JS, Docker/Rocky Linux, REST/FastAPI, agentic AI and prompt engineering.
Python, SQL, Javascript, Docker, Rocky Linux, Rest, FastAPI, Langchain, LangGraph, OpenAI Agents, Pydontic, UVicorn, Streamlit, AWS, Mandiant
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