3,431 senior python developer jobs at 723 companies in Dumfries, VA

1mo
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Senior Python Developer
Herndon, Virginia, United States
OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
10+ YOE10+ years Python development, SQL, front-end/full stack, Git, Docker/Kubernetes, RESTful API development, Linux/Unix; Bachelor's in CS +10 years or HS +14 years; active TS/SCI with polygraph required.
Python, SQL, Git, Docker, Kubernetes, RESTful API, Linux/Unix, Node.js, Jenkins, GitLab CI, AWS, Azure, JIRA
5d
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Senior Python Developer
Chantilly, Virginia, United States
$121k-$189k/yr OnsiteFull Time
Noblis
Noblis: Nonprofit science, technology, and strategy firm supporting government missions.
Active TS/SCI clearance with CI polygraph ability, US citizenship, solid Python development, full-stack experience (Django/React), ability to rapidly prototype, and degree with extensive experience per posted equivalencies.
Python, Django, React, JavaScript, Docker, Bash, PowerShell, PostgreSQL, SANS SIFT Workstation
1mo
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Senior Python Developer
Washington or Virginia or Maryland
$90k-$130k/yr OnsiteFull Time
Tripoint Solutions
Tripoint Solutions: Providing technology modernization and data services to federal agencies.
5+ YOEBachelor's in CS or related, 5+ years Python development, experience with Django/Flask, REST APIs, PostgreSQL, Git, Unix/Linux, AWS/Cloud platforms, Jupyter Notebooks; U.S. citizenship and eligibility for Federal Public Trust required.
Python, Django, Flask, Jupyter Notebook, Git, PostgreSQL, Unix/Linux, HTML, JavaScript, Docker, Kubernetes, AWS, Cloud Foundry, Heroku, ServiceNow, UiPath
2mo
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Python Developer (Mid-Senior)
Chantilly, Virginia, United States
OnsiteFull Time
JTEC Consulting
JTEC Consulting: Provides IT services to federal clients.
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
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Python Developer
Fort Meade, Maryland, United States
OnsiteFull Time
Set of X
Set of X: Provides specialized engineering services for U.S. national security missions.
7+ YOEBachelor's in Computer Science (or 4 yrs SWE experience) and 7 years SWE experience required; strong Python skills; NiFi or Elastic a plus; TS/SCI with polygraph required.
Python, NiFi, Elastic
2w
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Senior Python Developer with Spark
Reston, Virginia, United States
$97k-$157k/yr HybridFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
8+ YOE8+ years Python data engineering with Apache Spark, advanced SQL, AWS (EMR, Redshift, S3, Glue), big data tooling, CI/CD (GitLab, Terraform), and strong performance optimization skills.
Python, Apache Spark, Hadoop, Hive, EMR, SQL, AWS, Redshift, S3, Glue, Lambda, Step Functions, EventBridge, GitLab, Terraform
1w
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Senior Python Software Engineer
Laurel, Maryland, United States
$170k-$230k/yr OnsiteFull Time
GliaCell Technologies
GliaCell Technologies: Software and systems engineering for the intelligence community.
14+ YOEActive or rein-statable TS/SCI with Polygraph, U.S. citizenship, ~14 years experience (or BS plus 14 years / or 18 years in lieu of BS), strong Python and ML experience, Linux, Jira/Confluence, and security-cleared government contract experience.
Python, GM Learn, Jira, Confluence, Linux, Java, Scala, Lucene, JEXL, SQL, JSON, Ghostmachine, Jupyter Notebooks, IntelliJ, Eclipse, Git, Gitlab, Stash, Bitbucket, Scikit-learn, AWS, Spark
2d
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26-1106: Python Developer - Herndon, VA
Herndon, Virginia, United States
$110k-$150k/yr OnsiteFull Time
Navitas Business Consulting
Navitas Business Consulting: Provides digital transformation and IT solutions for government agencies.
5+ YOEBachelor's or equivalent,5+ years Python development,experience with Flask or FastAPI,REST API design,relational and NoSQL databases,Git,CI/CD,Docker,Kubernetes,AWS,and secure coding for DoD environments.
Python, Flask, FastAPI, Git, CI/CD, Docker, Kubernetes, AWS
5d
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Full Stack Python Developer
Herndon or Springfield
OnsiteFull Time
Quevera
Quevera: Software engineering and cloud solutions for government and defense.
5+ YOETS/SCI with polygraph required; 5+ years Python and full-stack development; experience with Generative AI and AWS CDK; willingness to work onsite in SCIF at Herndon or Springfield, VA.
Python, AWS Cloud Development Kit (CDK), Amazon Bedrock, AWS
1mo
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Python Web Application Developer
Tysons Corner or Falls Church
HybridFull Time
IntelliDyne
IntelliDyne: Provides IT solutions and consulting services to government agencies.
5+ YOE5+ years Python development, Flask experience, web app deployment and security, authentication and certificate management, REST APIs, relational DBs, Git, HTML/CSS/JavaScript, strong debugging and communication skills.
Python, Flask, Microsoft Entra ID, HTML, CSS, JavaScript, REST APIs, PostgreSQL, SQL Server, MySQL, Git, Azure, AWS, IIS, NGINX, Apache, Docker, Linux, Windows, CI/CD
1mo
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Lead Python Programming Software Engineer – Level 4
Fairfax, Virginia, United States
$142k-$213k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOEActive TS/SCI clearance and U.S. citizenship; Bachelor's +8 years (or Master’s +6 or PhD +4) software development experience; 3+ years senior-level Python; software architecture and version control (GitLab) experience.
Python, GitLab
2mo
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GenAI Python Systems Engineer –Senior Manager
Chicago or Raleigh or Charlotte or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or Silicon Valley or Seattle or Spartanburg or Albany or Stamford or Tampa or Atlanta or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Miami or Milwaukee or Minneapolis or Nashville or New Orleans or New York or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$124k-$280k/yr HybridFull Time
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
8+ YOESenior Manager level with 8+ years of experience; proficient in Python, SQL, FastAPI; cloud certifications a plus; willing to travel up to 80%; Bachelor's degree required.
Python, SQL, FastAPI, Cloud Platforms, LLM techniques, Data Warehousing, Data Lakes, IAM
2w
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SQL and Python Developer
Washington, District of Columbia, United States
$90k-$125k/yr OnsiteFull Time
IntelliDyne
IntelliDyne: Provides IT consulting and technology solutions to government agencies.
5+ YOE5+ years SQL, PL/SQL and Python experience; Oracle and Cognos experience; OLAP and ETL familiarity; strong analytical, QA and collaborative skills; bachelor’s degree required; MBI security clearance required.
SQL, PL/SQL, Python, Cognos, Oracle, Microsoft Excel, Crystal Reports, Business Objects Enterprise XI, OLAP, ETL
5d
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Python AWS AI Engineer
Plano or Raleigh or Reston or Richardson or Tempe
OnsiteFull Time
Infosys
InfosysNYSE: INFY: Provides IT consulting, software development, and business outsourcing services.
Advanced Python and ML experience with LLMs and generative AI, AWS (Bedrock,S3,EC2,Lambda,SageMaker), MLops, prompt engineering, model deployment, and Bachelor's degree or equivalent experience.
Python, TensorFlow, PyTorch, scikit-learn, AWS Bedrock, Amazon S3, Amazon EC2, AWS Lambda, AWS SageMaker, Docker, OpenAI, Anthropic, Cohere
2d
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Senior Software Developer (Python, React, AI) (DC, Washington)
Washington, District of Columbia, United States
OnsiteFull Time
U.S. News & World Report
U.S. News & World Report: Provides rankings and advice for consumer decision-making.
Senior full-stack developer with strong Python and React skills, experience with AWS and Google BigQuery, AI-first mindset, ability to mentor others and make architecture decisions.
Python, React, AWS, Google BigQuery, AI
1mo
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Financial Model Development Senior (Python Developer)
McLean, Virginia, United States
$130k-$196k/yr OnsiteFull Time
Freddie Mac
Freddie MacOTCQB: FMCC: Purchases and securitizes home mortgages for the secondary market.
5+ YOEBachelors in CS/Engineering, 5+ years developing analytic production-quality software; proficient in Python, C++, Java; familiar with AWS EKS and Python web frameworks; experience with Make, Git, shell scripts, gdb, pdb, SQL, RDBMS.
Python, C++, Java, AWS EKS, Flask, Fast API, Django, Make, Git, shell scripts, gdb, pdb, SQL, RDBMS
2mo
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Scrum Master/Python Developer Technical Lead
McLean, Virginia, United States
OnsiteFull Time
Futrend Technology
Futrend Technology: Provider of IT solutions and consulting for federal agencies.
5+ YOE5+ years as Technical Lead; 5+ years Python development; 1+ year as Scrum Master/Agile Coach; strong Agile/Scrum knowledge; cross-functional team experience; able to manage fast-paced, ambiguous projects; excellent communication and facilitation.
Python, Jira, Confluence
2mo
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Software Engineer, Senior
Fort Meade, Maryland, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
14+ YOESenior full-stack developer with experience in C++, JavaScript, and Python; TS/SCI clearance with polygraph; 14+ years of software engineering experience or 18+ years in lieu of degree.
C++, JavaScript, Python
2mo
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Senior Software Engineer
Washington or Boston
$129k-$194k/yr OnsiteFull Time
Recorded Future
Recorded Future: Provides AI-driven threat intelligence to protect organizations from cyberattacks.
Strong Python, distributed systems, cloud platforms, AI/ML, LLMs, autonomous agents, senior IC.
Python, AWS, GCP, Azure, Jira, Git, LLMs, AI agent tooling
2mo
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Senior Software Engineer
Arlington or San Diego or Woburn
$139k-$180k/yr HybridFull Time
Systems & Technology Research
Systems & Technology Research: Develops advanced technology for national security and defense applications.
5+ YOESenior software engineer with strong C++, Python/MATLAB, RT real-time systems, security clearance eligibility.
C++, Python, MATLAB, CI/CD, Windows, Linux

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