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1,217 senior software engineer python jobs at 316 companies in Virginia

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
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
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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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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: Designs and manufactures advanced aerospace and defense systems.
8+ YOEActive TS/SCI clearance and U.S. citizenship required; 8+ years software development with Bachelor's (alternatively Master's/PhD with fewer years); 3+ years senior Python experience; software architecture, GitLab/version control, and team leadership experience.
Python, GitLab
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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
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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
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3mo
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Senior Software Engineer
Herndon, Virginia, United States
OnsiteFull Time
Expedition Technology
Expedition Technology: Delivering advanced machine learning and signal processing for defense.
8+ YOE8+ years software engineering; Python expert; TS/SCI with CI poly; Bachelor's in CS/EE or equivalent; cloud; DevSecOps; Linux; AI/ML interest.
Python, Docker, Kubernetes, Linux, Cloud, CI/CD workflow
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1w
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Senior Lead Software Engineer (Golang, Python, AWS)
McLean or Richmond
$209k-$262k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
6+ YOE4+ MgmtBachelor's degree,6+ years software engineering,1+ year cloud experience,4+ years people management,experience with Go/Python/JavaScript/Java/TypeScript/SQL,Docker,Kubernetes,AWS/GCP/Azure.
Golang, Python, Go, JavaScript, Java, HTML/CSS, TypeScript, SQL, Docker, Kubernetes, AWS, GCP, Microsoft Azure
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1w
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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
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2w
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Python/Django Developer
McLean, Virginia, United States
$80k-$120k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
10+ YOEMust be US-citizen/eligible for US security clearance; 10+ years software engineering with 5+ years Python; experience with Django and Nginx; AWS Gov cloud, FedRAMP/IL5 exposure advantageous.
Python, Django, Nginx, AWS Gov cloud, AWS
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1mo
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Senior Software Engineer
Quantico, Virginia, United States
OnsiteFull Time
Redhorse
Redhorse: Delivering data insights and technology solutions to government agencies.
6+ YOEActive TS/SCI clearance; BS in CS/CE/SE/EE/Info Security; 6+ years software/ops; 4+ years in CNO; 2+ years automation (Python/Bash/PowerShell/Ansible); Linux admin; Git/Jira/GitLab; Docker/Podman; leadership; able to work independently.
Python, Bash, PowerShell, Ansible, Linux (Ubuntu, Rocky Linux), Git, Jira, GitLab, Docker, Podman, Docker Compose
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Python Developer - 6249754
New York City or Cleveland or California or Colorado or District of Columbia or Illinois or Maine or Maryland or Massachusetts or Minnesota or New Jersey or New York or Virginia or Washington
$22-$72/hr HybridFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOEMinimum 5 years experience, advanced Python proficiency, Associates degree required (Bachelor's preferred). Preferred experience with Oracle NoSQL, MongoDB, React.js, application remediation and engineering support.
Python, Oracle NoSQL Database, MongoDB, React.js
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1mo
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Senior Principal Software Engineer
Home, Virginia, United States
$128k-$251k/yr RemoteFull Time
Arcfield
Arcfield: Systems engineering and mission support for defense and space.
5+ YOE5+ years software eng, BS/MS/PhD in CS/Engineering, full-stack exp, Python and/or Rust, AI/ML, cloud, DevSecOps, Secret Clearance.
Python, Rust, Java, JavaScript, React, Redux, AWS, Azure, Kubernetes, Docker, Terraform, GitLab, Maven, Semgrep, yGuard, OWASP, pytest, JUnit, Jacoco, OTel, Grafana, MLflow, GPT, LangChain, LlamaIndex, Cameo Systems Modeler, Teamwork Cloud, SysML
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3w
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Software Engineer (Full Stack & Python)
Chantilly, Virginia, United States
$94k-$198k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
6+ YOETS/SCI with polygraph, Bachelor's in CS or related, 6+ years software development, 4+ years full‑stack, 3+ years Python web, REST APIs, JS front-end frameworks, git, unit/integration testing, CI/CD experience.
Python, JavaScript, Angular, Vue, React, git, Jenkins, GitLab Runners, AWS, REST
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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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3w
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Software Engineer (Full Stack & Python)
Chantilly, Virginia, United States
$94k-$198k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
6+ YOETS/SCI with polygraph; Bachelor's in Computer Science; 6+ years software development; 4+ years full‑stack; 3+ years Python, REST APIs, JavaScript front-end frameworks; git, unit/integration testing, CI/CD experience.
Python, JavaScript, Angular, Vue, React, git, Jenkins, GitLab Runners, CI/CD, REST APIs, AWS, Agile
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1mo
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Senior Software Engineer
Arlington, Virginia, United States
$132k-$212k/yr HybridFull Time
Mastercard
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Extensive software engineering experience; proficiency in C#, Java, Python, Go, or JavaScript/TypeScript; CI/CD, cloud (AWS/Azure), Docker, Kubernetes, IaC, and platform engineering; bachelor's degree or equivalent preferred.
C#, Java, Python, Go, JavaScript, TypeScript, CI/CD, Jenkins, GitHub Actions, AWS, Azure, Docker, Kubernetes, Infrastructure as Code, ETL
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2mo
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Senior Software Engineer, Intelligence Systems
Reston, Virginia, United States
$191k-$253k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
Proficient in Python; strong software testing, networking knowledge, Wireshark; active secret security clearance.
Python, Wireshark, Networking, Test Automation, Firmware Utilities
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1mo
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Senior Software Engineer
McLean, Virginia, United States
$129k-$193k/yr OnsiteFull Time
Freddie Mac
Freddie MacOTCQB: FMCC: Purchases and securitizes home mortgages for the secondary market.
5+ YOE5+ years hands-on software engineering; full‑stack development (React, JavaScript, Python, Java, Angular); AWS and web content management experience; architecture, security, and compliance knowledge; bachelor’s in CS or equivalent.
React, JavaScript, Python, Java, Angular, AWS, Acquia, SiteCorp, Drupal, Ping, Single Sign-On, Bitbucket Pipelines, Cloudflare, New Relic, DNS, TLS, REST APIs, Business Process Management, Low Code Application Platforms, AI
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2mo
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Senior Software Engineer
Herndon or Herndon or North America
OnsiteFull Time
Bridge Core
Bridge Core: Provides technical services and cybersecurity solutions to government agencies.
11+ YOEBachelor’s or Master’s preferred; 11+ years relevant experience; Python with 2+ years network automation; CI/CD/DevOps; Ansible/NSO; NetBox; PyATS/Jenkins; Yang; Cisco IOS/XR/NX-OS; AWS; Docker.
Python, Ansible, NSO, NetBox, PyATS, Jenkins, Yang, Cisco IOS, Cisco IOS XR, NX-OS, Junos, AWS, Docker, Podman
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1mo
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Software Engineer, Senior
McLean or Dayton or Wright-Patterson AFB
OnsiteFull Time
Skyline Scientific
Skyline Scientific: Specialized engineering and analytical services for remote sensing systems.
10+ YOEBachelor's in STEM or equivalent, 10+ years of scientific/algorithm/software engineering experience, strong Python skills, familiarity with Git/GitLab/Bitbucket/Jira/Jenkins, U.S. citizenship and ability to obtain security clearance, comfortable working in classified environments.
Python, Windows, Linux, Git, GitLab, Bitbucket, Jira, Jenkins, PyTorch, TensorFlow, scikit-learn, NumPy, pandas, OpenCV, C, C++, Java, Rust, MATLAB, CI/CD
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