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Senior Python Developer Jobs in Purcellville, VA, US
1,900+ senior python developer jobs from 480+ companies hiring in Purcellville, VA, US.
1mo
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Senior Python Developer
Fairfax, Virginia, United States
OnsiteFull Time
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
1w
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Senior Python Developer - Contingent
McLean, Virginia, United States
RemoteFull Time
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
3w
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Senior‑Level Python Developer (Python, C++)
Annapolis Junction, Maryland, United States
$155k-$175k/yr OnsiteFull Time
8+ YOEBachelor’s degree in computer science; 8+ years relevant experience; Python, C++, Spark; Jupyter Notebooks; JIRA, Confluence, Git/GitLab; knowledge of customer tools; active TS/SCI with Polygraph.
Python, C++, Spark, Jupyter Notebooks, JIRA, Confluence, Git/GitLab
1w
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Sr. Python Engineer, Agentic AI
Washington, District of Columbia, United States
$168k-$252k/yr HybridFull Time
7+ YOESenior backend engineer with Python experience, AI/agentic workflows, scalable systems, observability, and mentorship.
Python, FastAPI, Asyncio, LLMs, APIs, Microservices, Distributed Systems
2w
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Python Software Developer
Ashburn, Virginia, United States
HybridFull Time
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
1mo
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Python Software Engineer (TS/SCI with Polygraph)
Annapolis Junction, Maryland, United States
$150k-$200k/yr OnsiteFull Time
7+ YOE7+ years software engineering; BS in CS or related field; Linux CLI; Bash; Python; Rust or willingness to learn; NoSQL (MongoDB); Docker; Kubernetes; Helm; RabbitMQ; GitLab CI; Ansible; Git; TS/SCI with polygraph
Linux, Bash, Python, Rust, MongoDB, Docker, containerd, Kubernetes, Helm, RabbitMQ, GitLab CI, Ansible, Git, PostgreSQL, Jira, Confluence
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
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
2mo
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Senior CNO Developer
Arlington, Virginia, United States
$144k-$216k/yr OnsiteFull Time
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
1mo
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Senior Developer
Rosslyn, Virginia, United States
OnsiteFull Time
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
1mo
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Senior Developer
Rosslyn, Virginia, United States
OnsiteFull Time
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
6d
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Senior Engineer - Customer Identity
Bethesda or Dallas or Seattle
$75k-$215k/yr HybridFull Time
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
3w
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Software Engineer, Senior
Annapolis Junction, Maryland, United States
$87k-$198k/yr OnsiteFull Time
14+ YOESenior full-stack developer with Java, Python, database, and AI/ML integration experience; TS/SCI with polygraph; Bachelor’s in CS and 14+ years or 18+ years without degree.
Java, Python, MySQL, MariaDB, Git, GitLab, GUI testing, test harnesses, AI/ML integration
2mo
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Senior Software Engineer
Annapolis Junction or Columbia
OnsiteFull Time
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
1w
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Senior Software Developer
Rockville or Tysons Corner
$113k-$188k/yr HybridFull Time
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
2mo
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Senior Level Developer
Suitland-Silver Hill, Maryland, United States
HybridFull Time
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
2mo
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Senior Software Developer
Reston, Virginia, United States
$146k-$228k/yr HybridFull Time
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
2mo
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Senior CNO Developer (Onsite)
Annapolis Junction, Maryland, United States
OnsiteFull Time
6+ YOE5+ MgmtSenior CNO developer with extensive programming and team leadership experience, TS/SCI clearance preferred, onsite in MD.
Python, C, C++, Java, Perl, Assembly, Make, PowerShell, Bash
3w
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Senior Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
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
6d
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Senior Software Developer
Fort Belvoir, Virginia, United States
OnsiteFull Time
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
3w
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Senior Software Engineer
Washington or United States
$110k-$155k/yr HybridFull Time
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
2w
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Senior Software Engineer
Warrenton or State College or Fort Eisenhower or Centennial
OnsiteFull Time
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
1mo
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Senior Software Engineer
Waltham or Lexington or North Bethesda
$119k-$155k/yr HybridFull Time
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
1d
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Software Developer, Senior
Herndon, Virginia, United States
$133k-$226k/yr OnsiteFull Time
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
6d
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Senior Application Engineer
Vienna or Winchester or Pensacola
$115k-$180k/yr HybridFull Time
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
17h
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Senior Software Engineer
Reston or Lexington
$97k-$165k/yr HybridFull Time
5+ YOEBachelor's degree in Computer Science or Software Engineering; 5+ years software development; active Secret clearance or ability to obtain; strong C/C++ and Python; Linux experience; full software lifecycle; security-focused.
C/C++, Python, Linux, SVN, Git, Make, CMake, TCP/IP, UDP, SSH, SFTP
2mo
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Senior Software Engineer
Reston or Vienna
HybridFull Time
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
1mo
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Senior Software Engineer, Identity
San Francisco or New York or Washington
$130k-$250k/yr OnsiteFull Time
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
1mo
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Senior Website Developer
Arlington, Virginia, United States
OnsiteFull Time
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
6d
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Senior Embedded Software Engineer
Washington, District of Columbia, United States
$191k-$254k/yr OnsiteFull Time
Senior-level embedded software experience; Python/C/C++; security-focused; active Secret clearance; hardware/software integration.
Python, C, C++
1mo
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Senior Full Stack Engineer / Software Developer
McLean, Virginia, United States
$112k-$222k/yr OnsiteFull Time
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
1mo
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Senior Software Developer – Mobile/RE HYBRID!
Lorton, Virginia, United States
HybridFull Time
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
5d
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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
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
3w
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Senior Software Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
14+ YOEExtensive software engineering experience; TS/SCI with Poly; Bachelor's in CS; Linux; Python/C++/Java; Git/GitLab; Agile; SDR and geospatial experience preferred.
Linux, Python, C++, Java, JavaScript, Git, GitLab, VSCode, Eclipse, Scrum
5d
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Senior Software Engineer/Architect
Laurel, Maryland, United States
$105k-$290k/yr OnsiteFull Time
7+ YOEB.S. in CS/CE; 7+ years software development; Python; technical lead experience; web development with modern JS frameworks; non-relational DBs; TS/SCI eligibility.
Java, Python, JavaScript, Vue.js, ReactJS, Angular, MongoDB, CouchDB, HBase, SQL Server, MySQL, Postgres
1w
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Senior AI Developer
McLean, Virginia, United States
OnsiteFull Time
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
1d
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Senior ServiceNow Developer
Falls Church, Virginia, United States
RemoteFull Time
Senior ServiceNow developer with ITIL/SOA, integration, and strong stakeholder engagement; proficient in ServiceNow modules, automation, and development.
ServiceNow, JIRA, Tableau, REST, SOAP, JSON, XML, Java, Python, JavaScript
1mo
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Senior AI Product Engineer
McLean, Virginia, United States
$140k-$180k/yr OnsiteFull Time
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
2mo
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Senior Software Engineer/ Elastic Engineer
Dulles, Virginia, United States
OnsiteFull Time
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
3w
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Spatial Front, Inc - Senior Application Developer
Suitland or United States
$90k-$138k/yr RemoteFull Time
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
3mo
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Cloud Developer - Senior
Chantilly, Virginia, United States
OnsiteFull Time
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#
HiringCafe market data
Senior Python Developer Jobs market signals in Purcellville, 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
1,900+
Hiring companies
480+
Fresh sample
51% new in 30d
Salary visibility
55% show pay
Companies appearing in this market
BAE SystemsSteampunkActioNetAccenture Federal ServicesAltamira TechnologiesBigBear.aiBooz Allen HamiltonCapital One
Work location mix in visible results
Onsite: 79Hybrid: 36Remote: 6