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Senior Python Developer Jobs in Warrenton, VA, US

1,700+ senior python developer jobs from 440+ companies hiring in Warrenton, VA, US.

All jobs in Warrenton, VA, USSenior Python Developer Jobs in United States
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1,765 jobs- Warrenton • 50 miles
1mo
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Senior Python Developer
Fairfax, Virginia, United States
OnsiteFull Time
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
7+ YOEStrong Python, Elastic Stack, 7-9+ years building enterprise apps, systems integration, CI/CD, data modeling, and distributed storage tech.
Python, Pandas, BeautifulSoup, NumPy, Boto3, Elasticsearch, Kibana, Docker, Kubernetes, AWS, Git, CI/CD, RabbitMQ, Kafka, Logstash, Beats, Splunk, Terraform
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1w
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Senior Python Developer - Contingent
McLean, Virginia, United States
RemoteFull Time
Aretum
Aretum: Provides technology-enabled mission support services for federal government agencies.
8+ YOE8+ years Python development, 8+ years OOP, Bachelor’s or 2 extra years, API/microservices, AWS, Docker/Kubernetes, CI/CD, Agile.
Python, FastAPI, Docker, Kubernetes, Terraform, AWS, PostgreSQL, MySQL, Solr, Elasticsearch, JQuery, JavaScript, CI/CD
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1w
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Sr. Python Engineer, Agentic AI
Washington, District of Columbia, United States
$168k-$252k/yr HybridFull Time
Comcast
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
7+ YOESenior backend engineer with Python experience, AI/agentic workflows, scalable systems, observability, and mentorship.
Python, FastAPI, Asyncio, LLMs, APIs, Microservices, Distributed Systems
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2w
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Python Software Developer
Ashburn, Virginia, United States
HybridFull Time
DXC Technology
DXC TechnologyNYSE: DXC: Global provider of IT services and business technology solutions.
4+ YOE4+ years software development; Python proficiency; strong SQL; GraphQL APIs; REST; Git/Linux/Docker; web security; cloud; microservices; bachelor's degree or equivalent; authorized to work in the United States
Python, GraphQL, REST, SQL, Git, Linux, Docker, OpenAPI
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1w
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Senior Lead Software Engineer, Back End (Python/Node.js)
McLean or New York City or Cambridge
$230k-$286k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
6+ YOESenior backend software engineer with 6+ years experience, cloud (AWS/Azure/GCP), leadership experience preferred; strong Java, Python, Node.js, Go, Scala, and cloud/container tech.
Java, Python, SQL, Node.js, Go, Scala, Docker, Kubernetes, AWS, Azure, GCP
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2mo
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Senior CNO Developer
Arlington, Virginia, United States
$144k-$216k/yr OnsiteFull Time
Two Six Technologies
Two Six Technologies: Sells cybersecurity software and research for national security.
5+ YOESenior CNO Developer with Top Secret/SCI clearance, 5+ yrs exp, Python/C/C++, OS internals, networking, reverse engineering, embedded systems, and PoC development.
Python, C, C++, WinDbg, GDB, Binary Ninja, Ghidra, Wireshark, Linux, Embedded systems, Firmware analysis
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1mo
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Senior Developer
Rosslyn, Virginia, United States
OnsiteFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services to government agencies.
7+ YOELead design and development of software; 7–12 years in software development; proficient in Python, Java, or C#; Agile, Scrum, and SAFe; strong leadership and API integration; cloud and big data experience preferred.
Python, Java, C#, Agile, Scrum, SAFe, Cloud, Big Data, API development, Microservices
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1mo
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Senior Developer
Rosslyn, Virginia, United States
OnsiteFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services for government agencies.
7+ YOE7–12 years of software development experience; expertise in Python, Java, or C#; strong leadership and mentoring skills; Agile, Scrum, SAFe; cloud and big data experience preferred.
Python, Java, C#, Agile, Scrum, SAFe, API development, Cloud, Big data
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5d
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Senior Engineer - Customer Identity
Bethesda or Dallas or Seattle
$75k-$215k/yr HybridFull Time
GEICO
GEICO: Provides vehicle and property insurance services to consumers.
4+ YOESenior engineer with 4+ years in software development; Java, C++, Python or C#; microservices; cloud; REST/gRPC; Kafka/Azure; DevOps; open-source experience.
Java, C++, Python, C#, SQL, NoSQL, Kafka, Azure Service Bus, Azure tools, AWS
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2mo
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Senior Software Engineer
Annapolis Junction or Columbia
OnsiteFull Time
Freedom Technology Solutions Group
Freedom Technology Solutions Group: Technical consulting and engineering for the national security community.
7+ YOESenior software engineer with 7+ years SWE experience; BS in CS required; strong Java/Python, CI/CD, and security clearance with polygraph; experience with Agile; ability to design, develop, and deploy software.
Java, Python, Git, Shell, Maven, JavaScript, HTML, CSS, JUnit, IDE, Spring, Jenkins, Hibernate, MySQL, Web Services, Google Web Toolkit, Vaadin, Docker, Kubernetes, OpenShift, GitLab CI, SonarQube
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1w
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Senior Software Developer
Rockville or Tysons Corner
$113k-$188k/yr HybridFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
6+ YOEMinimum 6 years full-stack development (Python and React); 3+ years databases; Docker; AWS; REST/JSON; CI/CD; mentoring.
React, TypeScript/JavaScript, Python, Docker, AWS, GitHub Actions
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2mo
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Senior Level Developer
Suitland-Silver Hill, Maryland, United States
HybridFull Time
Ignite IT
Ignite IT: Provides digital transformation and cloud solutions to federal agencies.
8+ YOE8+ years software development; expert Python; AWS cloud native; API/microservices; migration from on-prem to AWS; CI/CD; Agile; US citizenship.
Python, AWS, Lambda, ECS, EKS, Fargate, Aurora/Postgres, EventBridge, S3, IAM/KMS, SNS/SQS, Glue, Batch, APIs, Serverless, CI/CD, GitLab, Terraform/CloudFormation
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2mo
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Senior Software Developer
Reston, Virginia, United States
$146k-$228k/yr HybridFull Time
Noblis
Noblis: Provides technical and scientific solutions to federal government agencies.
8+ YOEBachelor's Degree and 8+ years software development; expert Python and C; Linux/Windows; PostgreSQL; software architecture; system-level programming; TS/SCI clearance with eligibility.
Python, C, PostgreSQL, Linux, Windows, Git, Docker, Kubernetes, REST, Microservices, CI/CD, DevOps
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3w
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Senior Software Engineer
Fredericksburg, Virginia, United States
OnsiteFull Time
Obsidian Solutions Group: Delivers technology-enabled and mission-oriented solutions to government agencies.
8+ YOE3+ MgmtLead software architect; 8+ years in software development; distributed simulation, Unity/Unreal, C#/Python/JavaScript; DevSecOps and containers.
Unity, Unreal, C#, Python, JavaScript, TypeScript, Docker, Kubernetes
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2w
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Senior Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
Karsun Solutions
Karsun Solutions: Provider of IT modernization and software development for government agencies.
10+ YOESenior full stack developer with 10+ years of software development, AI/ML exposure, and ability to lead modernization efforts.
Java, Python, Node.js, JSP, Tomcat, jQuery, SQL, ETL, APIs, CI/CD, Cloud
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5d
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Senior Software Developer
Fort Belvoir, Virginia, United States
OnsiteFull Time
Applied Research Associates
Applied Research Associates: Provides scientific research and engineering solutions for complex problems.
6+ YOESenior software developer with 6-10 years of experience in software development; strong Java, Python, web tech, cloud, containers; Agile leadership; TS/SCI upgrade path.
HTML, CSS, JavaScript, Angular, Python, Java, Golang, Vue, React, AWS, Azure, GCE, Docker, Kubernetes, Helm, CI/CD, SQL, NoSQL, Postgres, MySQL, Redis, MongoDB
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3w
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Senior Software Engineer
Washington or United States
$110k-$155k/yr HybridFull Time
GovExec
GovExec: Information and intelligence platform for government leaders and contractors.
5+ YOE5+ years Python backend development; Django; database design (MySQL/PostgreSQL); remote collaboration skills; strong problem solving and communication.
Python, Django, MySQL, PostgreSQL, REST APIs
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2w
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Senior Software Engineer
Warrenton or State College or Fort Eisenhower or Centennial
OnsiteFull Time
Altamira Technologies
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
Strong Java and JavaScript/TypeScript skills; full-stack development; experience with Java, Python, JavaScript, Angular, React, ElasticSearch; BS in CS/CE/EE.
Java, Python, JavaScript, TypeScript, Angular, React, ElasticSearch, Docker, Kubernetes, Redis, REST, NoSQL, SQL, Xmidas
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1mo
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Senior Software Engineer
Waltham or Lexington or North Bethesda
$119k-$155k/yr HybridFull Time
Xometry
XometryNASDAQ: XMTR: Operates an AI-powered marketplace for custom manufacturing and prototyping.
6+ YOE6+ years in software development; full-stack experience; Python backend; React/Typescript; AWS; SQL and MongoDB; Docker/Kubernetes; strong debugging and testing.
Python, React, Typescript, HTML, CSS, AWS, SQL, MongoDB, Docker, Kubernetes
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14h
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Software Developer, Senior
Herndon, Virginia, United States
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
6+ YOEMinimum 6 years software development experience; Bachelor’s degree in CS/Info Security or related field (or equivalent); Proficiency with .NET, Web, Python, PowerShell; Cloud experience (AWS/Azure); Experience with GitHub/Jira/Jenkins/Confluence; knowledge of STS/DataHound; SDLC familiarity; strong documentation skills.
.NET, C#, WPF/XAML, C++, ASP.NET MVC Web API, HTML/CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, Secure Token Service (STS), DataHound, Microsoft PowerBI
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Senior Application Engineer
Vienna or Winchester or Pensacola
$115k-$180k/yr HybridFull Time
Navy Federal Credit Union
Navy Federal Credit Union: Offers banking and financial services to the military community.
5+ YOEBachelor’s degree in Computer Science, Information Systems, or related field; 5–7 years in application/software development; Azure cloud experience; proficient in SQL, Python, JavaScript; strong communication and problem-solving.
SQL, Python, JavaScript, HTML/CSS, Azure, Azure Compute, Azure Storage, Azure Data & Analytics, Git
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2mo
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Senior Software Engineer
Reston or Vienna
HybridFull Time
NT Concepts
NT Concepts: Delivers AI and data solutions for national security missions.
6+ YOE6+ years full-stack development; Python, Django, Angular, TypeScript; containerization (Fargate, OpenShift, Kubernetes); API design; DevOps; databases; AI/ML integration; active Secret clearance; TS/SCI preferred.
Python, Django, Angular, TypeScript, Kubernetes, OpenShift, Fargate, PostgreSQL, MySQL, MongoDB, Git, APIs
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1mo
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Senior Software Engineer, Identity
San Francisco or New York or Washington
$130k-$250k/yr OnsiteFull Time
Peregrine
Peregrine: Data integration and analytics platform for public safety agencies.
5+ YOE5+ years software development; CS degree or equivalent; experience with distributed systems; Python/Django stack; strong code quality and scalability.
Python, Django, Celery, Airflow, Kafka, React, Redux, Mapbox, PostgreSQL, Elasticsearch, Bedrock, SageMaker, AWS, Pulumi, Terraform, Kubernetes
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2mo
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Software Engineer, Senior
McLean or Alexandria
$87k-$198k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides management and technology consulting to government and commercial clients.
5+ YOESenior full stack developer with 5+ years in React/Angular/Python, REST/microservices, Agile, Secret clearance capability; Bachelor's degree.
React, Angular, Python, REST, Microservices, CI/CD, Kubernetes, Docker, Jenkins, SQL, NoSQL, AI
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Senior Website Developer
Arlington, Virginia, United States
OnsiteFull Time
Knowesis
Knowesis: Provides professional consulting and data services to federal agencies.
5+ YOE5+ years web development; bachelor’s in CS/IT/Web Development; front-end and back-end skills; CMS experience; US citizenship with Public Trust clearance.
HTML5, CSS3, JavaScript, React, Angular, Vue.js, PHP, Python, Ruby, Node.js, Drupal, WordPress, USWDS
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Senior Software Engineer
King George, Virginia, United States
OnsiteFull Time
TMC Technologies
TMC Technologies: Provides engineering and IT services to government and defense clients.
7+ YOE7+ years in software development with C++, C, Python, Java, and experience with UNIX/Linux/VxWorks; DevSecOps, Agile/Safe; SCRUM; publish/subscribe middleware; model-driven architecture; software metrics; security clearance required; Bachelor’s degree.
C++, C, Python, Java, Batch, UNIX, Linux, VxWorks, publish/subscribe middleware, Model Driven Architecture, DevSecOps, Agile, SAFE, SCRUM
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5d
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Senior Embedded Software Engineer
Washington, District of Columbia, United States
$191k-$254k/yr OnsiteFull Time
TAP Engineering
TAP Engineering: Provides specialized microelectronics engineering and research for defense agencies.
Senior-level embedded software experience; Python/C/C++; security-focused; active Secret clearance; hardware/software integration.
Python, C, C++
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1mo
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Senior Full Stack Engineer / Software Developer
McLean, Virginia, United States
$112k-$222k/yr OnsiteFull Time
Accenture Federal Services
Accenture Federal ServicesNYSE: ACN: Provides technology and consulting services to U.S. federal agencies.
5+ YOE5-10+ years web app development; React/TypeScript, Python backend, SQL/NoSQL; mentoring experience; TS/SCI with Poly clearance.
React, TypeScript, Python, SQL, NoSQL, AWS, CI/CD, DevOps, Testing
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Senior Software Developer – Mobile/RE HYBRID!
Lorton, Virginia, United States
HybridFull Time
AnaVation
AnaVation: Providing technical engineering and cybersecurity solutions for federal agencies.
6+ YOEBachelor’s degree, 6+ years software development, Python/Java/C/C++, mobile app development, Git, SQL databases, RE tools, Top-Secret clearance with SCI access.
Python, Java, C, C++, JavaScript, Git, SQL, PostgreSQL, SQLite, IDA Pro, Ghidra, JEB, Hopper, GDB
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4d
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Senior Software Cyber Vulnerability Engineer
Niceville or Colorado Springs or Huntsville or Alexandria or Washington, D.C. Metro Area
OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
10+ YOESenior software engineer with DoD clearance experience; 10+ years in software development; strong C++, Python, C#; knowledge of cyber security and vulnerability assessment; experience with DoD programs.
C++, Python, C#, .NET, REST APIs, Git, Jira, Confluence, Jenkins, Terraform, Ansible, STIG, OO Design, Design Patterns
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1w
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Senior AI Developer
McLean, Virginia, United States
OnsiteFull Time
Steampunk
Steampunk: Design-led federal technology consulting and innovation services firm.
7+ YOE7+ years in software engineering; 2+ years AI/ML; Bachelor's degree; Python and AI frameworks; production-grade AI apps; cloud platforms; RAG, LLM orchestration.
Python, PyTorch, TensorFlow, Hugging Face Transformers, LangChain, LlamaIndex, RAG, Vector databases, AWS, Azure, GCP, Docker, Kubernetes
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Senior Engineer
Washington, District of Columbia, United States
OnsiteFull Time
Native American Technology
Native American Technology: Provides technical services and training to the federal government.
15+ YOESenior engineer with 15+ years in engineering, data analysis, tool development, and safety programs; BS in engineering/math/science; ability to obtain public trust.
SQL, Oracle, SQL Server, Java, Python, NoSQL, Microsoft Access, ColdFusion, C++, Bootstrap
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1mo
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Senior AI Product Engineer
McLean, Virginia, United States
$140k-$180k/yr OnsiteFull Time
Steampunk
Steampunk: Provides digital transformation and IT consulting for federal agencies.
5+ YOESenior AI product engineer with 5+ years in AI/data-driven apps; strong GenAI, LLMs, Python, and ecosystem tools; public trust clearance; strong collaboration and communication.
Python, LangChain, LlamaIndex, DSPy, LLMOps, MLOps, Docker, Kubernetes, AWS, Azure, GCP, CI/CD, DevSecOps, Retrieval-Augmented Generation, Vector Databases, APIs
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2mo
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Senior Software Engineer/ Elastic Engineer
Dulles, Virginia, United States
OnsiteFull Time
Node.Digital
Node.Digital: Provides digital automation and AI solutions for government and commercial enterprises.
6+ YOEU.S. citizenship; active Secret clearance with ability to obtain TS/SCI; DHS suitability; 6+ years software development; 2+ years Elastic Cloud on Kubernetes admin; 2+ years Elasticsearch DSL; 5+ years Kubernetes; ELK stack knowledge; scripting (Python, JavaScript, Bash).
Elasticsearch, Kibana, Logstash, Beats, Elastic Cloud on Kubernetes, Kubernetes, Python, Groovy, Bash, ELK
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3w
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Spatial Front, Inc - Senior Application Developer
Suitland or United States
$90k-$138k/yr RemoteFull Time
Spatial Front
Spatial Front: IT solutions and mission support for government agencies.
7+ YOEBachelor’s degree in computer science or related field; 7+ years software development experience; strong Java, AWS, and microservices skills; experience with React, Python, and databases.
Java, AWS, Spring Framework, Hibernate, REST, PostgreSQL, Oracle Spatial, Python, React
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2mo
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Cloud Developer - Senior
Chantilly, Virginia, United States
OnsiteFull Time
Sentar
Sentar: Provides cybersecurity and intelligence solutions for national security missions.
8+ YOESenior Cloud Developer with 8+ years software development; 3+ years cloud, TS/SCI eligibility, BS in CS/cloud computing preferred.
AWS GovCloud, Terraform, Docker, Kubernetes, Lambda, S3, RDS, DynamoDB, SAFe, DevSecOps, Python, C#
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3w
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Software Engineer, Senior
Fort Belvoir, Virginia, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
5+ YOESenior full-stack developer with 5+ years in Python/Java/C++, Linux, OO programming, Agile, TDD, travel up to 25%, Secret clearance, BS CS or 8+ years experience.
Python, Java, C++, Linux, Object-Oriented Programming, Agile, Jira, Confluence, Git, Test-Driven Development, APIs, Docker, CI/CD
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1mo
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Senior Software Developer
King George, Virginia, United States
OnsiteFull Time
Southeastern Computer Consultants
Southeastern Computer Consultants: Engineering and training solutions for military weapon systems.
5+ YOEActive Secret clearance; BS in Computer Science, Electrical Engineering, Applied Math, or related field; 5+ years AI/ML development; experience in computer vision and edge deployment.
Python, C++, TensorFlow, PyTorch, OpenCV, Git, JIRA, Confluence
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3w
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Senior DevOps Engineer
Dayton or Arlington or Woburn or Remote
$134k-$184k/yr RemoteFull Time
Systems & Technology Research
Systems & Technology Research: Develops advanced technology for national security and defense applications.
5+ YOESenior DevOps engineer with CI/CD, containerization, multi-language builds, embedded/distributed systems, and security tooling experience.
Docker, Kubernetes, GitLab, Jenkins, CMake, Conan, Python, Bash, Make, Git, Artifactory, Trivy, SonarQube
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Senior Application Developer / Software Engineer
Fairfax, Virginia, United States
HybridFull Time
Navteca
Navteca: Developing specialized cloud and immersive technology for government agencies.
7+ YOE7+ years of professional software development; enterprise architectures; leadership; on-site or hybrid; government/regulatory experience preferred.
ASP.NET, C#, Python, Java, C/C++, HTML, XML, XSLT, CSS, JavaScript, SQL, SQL Server, Oracle, MarkLogic, Visual Studio, Git, CI/CD, .NET Framework, SharePoint, Microsoft Power Platform, IIS, ETL, AI/ML
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HiringCafe market data

Senior Python Developer Jobs market signals in Warrenton, 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
1,700+
Hiring companies
440+
Fresh sample
51% new in 30d
Salary visibility
55% show pay

Companies appearing in this market

SteampunkActioNetBooz Allen HamiltonAccenture Federal ServicesAltamira TechnologiesBAE SystemsCapital OneECS

Work location mix in visible results

Onsite: 64Hybrid: 39Remote: 7

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Jobs in Warrenton Virginia