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Python Software Developer Jobs in Fairfax, VA, US

2,300+ python software developer jobs from 500+ companies hiring in Fairfax, VA, US.

All jobs in Fairfax, VA, USPython Software Developer Jobs in United States
Nearby:Oakton·Kings Park West·Burke·Fairfax Station·Vienna·Merrifield·Annandale·Washington·Centreville·Idylwood·West Falls Church·Tysons·West Springfield·Oak Hill·Springfield·Chantilly·Arlington·Reston·McLean
2,326 jobs- Fairfax • 50 miles
2w
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Software Engineer
Arlington or United States
$70k-$150k/yr RemoteFull Time
DocMe360
DocMe360: Delivering digital strategy and clinical AI solutions for government.
5+ YOE5–8+ years software development; healthcare domain experience; Agile; Python, React, FastAPI; REST APIs; CI/CD/DevSecOps; strong problem solving and communication.
Python, React, FastAPI, REST APIs, CI/CD, DevSecOps, VistA RPC, MUMPS, VistA, EHR
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4d
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Software Engineer
Dahlgren, Virginia, United States
$100k-$125k/yr OnsiteFull Time
Tactical Engineering & Analysis
Tactical Engineering & Analysis: Provides systems engineering and analysis for military combat systems.
4+ YOE4+ years in software development, with DoD/ simulation system experience; strong Python/Java/C++ skills; RMF/IA knowledge; DoD 8570.01-M IAT II certification preferred.
Python, Java, JavaScript, C++, SQL, Git, SDLC, Agile, TDD
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1mo
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Software Developer Sr
Chantilly, Virginia, United States
OnsiteFull Time
AnaVation
AnaVation: Providing technical engineering and cybersecurity solutions for federal agencies.
8+ YOESenior software developer with at least 8 years of experience, TS clearance with SCI eligibility, SAFe experience, secure gov environment expertise, and strong Java/.NET/Python skills.
Java, DotNet, Python, RabbitMQ, Kafka, Redis, Elasticsearch, Splunk, Docker, Kubernetes, AWS GovCloud, Terraform, GraphQL, Angular, React, Svelte, Nifi
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2w
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Software Developer
Alexandria, Virginia, United States
$75k-$102k/yr OnsiteFull Time
Space Ground System Solutions
Space Ground System Solutions: Provides engineering services for satellite ground systems and space missions.
0+ YOE0-5 years software development experience; Linux, React/JavaScript, Java; BS in CS/Engineering.
React, JavaScript, Java, Linux, Go, Python, C/C++, Kubernetes, Docker, Podman, Shell scripting, Git, Jira, REST, JSON, RHEL, NodeJS
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4w
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Software Engineer
Warrenton, Virginia, United States
HybridFull Time
Altamira Technologies
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
Professional software development with C/C++ and Python; Linux systems, IPC, network sockets; signal processing frameworks; mathematical computing; OO design and DevOps/CI/CD; strong code reviews and collaboration.
C++, Python, Linux, IPC, UDP/TCP, Git, GitLab CI, Jira, Sockets, GNU Radio
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1w
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Cyber Software Developer (Networking & Python), Senior Associate - TS/SCI w/poly
Chantilly, Virginia, United States
$112k-$179k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
8+ YOEHS Diploma with 8+ yrs software development; Python; TCP/IP; routing/switching; cross-platform (Mac/Windows/Linux); SDLC; TS/SCI with poly.
Python, TCP/IP, Linux, Windows, macOS, SDLC
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2mo
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Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Sentar
Sentar: Provides cybersecurity and intelligence solutions for national security agencies.
8+ YOEActive Top Secret clearance with SCI eligibility; 8+ years software engineering; SAFe Agile experience; secure gov environment design and development; proficiency in Python, React, data platforms, and cloud and devops basics.
Python, React, RabbitMQ, Kafka, Redis, Elasticsearch, Splunk, Docker, Kubernetes, AWS GovCloud, Terraform, GraphQL, Angular, Svelte, SAFe
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2w
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Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Ardent Principles
Ardent Principles: Provides specialized technology and program management services to government agencies.
Active TS/SCI with Full Scope Polygraph; onsite in Chantilly, VA; backend software development with Java, Python, RESTful APIs; AWS; Linux (CentOS); Solr/Elastic; SPARC/PySpark; middleware and backend design.
Java, Python, JavaScript, Bash, Spring Boot, RESTful APIs, Linux (CentOS), AWS, Solr, Elastic, SPARC, PySpark, JIRA, GITHUB
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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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5d
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Software Developer - TS/SCI
Chantilly, Virginia, United States
$104k-$181k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
5+ YOE5+ years software design/development, TS/SCI clearance, Linux experience, Python/C/C++, bachelor's or higher in engineering or CS.
Python, C/C++, Linux, AWS, Docker, Kubernetes, PyTorch, TensorFlow, OpenCV, Git, Qt/PyQt, Android, CUDA
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2mo
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NLM Software Developer
Rockville, Maryland, United States
$105k-$132k/yr OnsiteFull Time
Ripple Effect
Ripple Effect: Provides professional consulting and scientific support to federal agencies
9+ YOE6+ years of software development experience; full SDLC; strong programming in C++, Python, Java, JavaScript, R; databases MySQL, PostgreSQL, MongoDB, ElasticSearch; Agile/DevSecOps; strong problem-solving and communication.
C++, Python, Java, JavaScript, R, Bash, MySQL, PostgreSQL, MongoDB, ElasticSearch, Jupyter Notebooks, GitHub, GitLab, CI/CD
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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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2mo
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26-1083: Full Stack /Python Developer - Herndon, VA
Herndon, Virginia, United States
OnsiteFull Time
Navitas Business Consulting
Navitas Business Consulting: Providing digital transformation and technology solutions for government organizations.
5+ YOE5+ years in software engineering; Python API development; full stack with modern front-end frameworks; cloud-native delivery; Databricks/Spark experience; DoD context a plus.
Python, Flask, FastAPI, React, Angular, Vue, Docker, Kubernetes, CI/CD, Git, Databricks, Spark, Elasticsearch, Neo4j, LLM, RAG
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5d
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Software Developer
Adelphi, Maryland, United States
OnsiteFull Time
Tyto Athene
Tyto Athene: Provides IT services and digital transformation for government agencies.
10+ YOEBachelor's degree or 3 years of relevant experience; 10+ years software development; proficient in Python, PHP, JavaScript, C/C++, and/or Java; Elasticsearch/PostgreSQL; Linux; secure SDLC; ML/AI; web frameworks; Git/CI/CD; Atlassian tools; REST APIs; Docker/Kubernetes; ITIL Foundations; TS/SCI clearance.
Python, PHP, JavaScript, C/C++, Java, Elasticsearch, PostgreSQL, Docker, Kubernetes, Laravel, NodeJS, React, Angular, Git, BitBucket, CI/CD, JIRA, Confluence, RESTful API, REST API, Linux
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3w
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Software Engineer
Aurora or Sarasota or Fairfax
OnsiteFull Time
Rampant Technologies
Rampant Technologies: Delivers signals intelligence and cybersecurity for national security missions.
3+ YOEExperience Linux software development, containerization, cloud platforms, and DevOps practices. Proficiency in Python. Kubernetes and CI/CD experience. Familiarity with DevSecOps and modern infrastructure.
Docker, Podman, Kubernetes, Git, GitLab, CI/CD, DevSecOps
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5d
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Expert Software Engineer
Springfield, Virginia, United States
$197k-$218k/yr HybridFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
6+ YOE3+ years AWS, 6+ years Agile software development, Python, DevSecOps/CI-CD, IaC, containers, TS/SCI poly, security clearance
AWS, Python, GitLab, Terraform, CDK, Docker, Kubernetes, OpenShift, SAFe, Jira, Confluence, SageMaker
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2mo
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Software Engineer
Reston, Virginia, United States
OnsiteFull Time
Scientific Research Corporation
Scientific Research Corporation: Advanced engineering and IT solutions for national defense and security.
5+ YOEActive Top Secret clearance (SCI eligible); 5+ years software development; strong JS/TS, React; Node.js, Java/Python; REST APIs; SQL/NoSQL; CI/CD; legacy modernization; AWS GovCloud/Azure Gov.
JavaScript, TypeScript, HTML5, CSS3, React, Angular, Vue.js, Node.js, Java, Python, PHP, C#, REST, PostgreSQL, Oracle, MS SQL Server, MongoDB, Redis, Git, GitHub, GitLab, Bitbucket, Jira, Azure DevOps, Jenkins, Docker, Kubernetes, Terraform, Ansible, AWS GovCloud, Azure Government
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2mo
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Software Engineer
Washington, District of Columbia or New York or Remote
$100k-$130k/yr HybridFull Time
Slate
Slate: Online magazine and podcast network providing news and analysis.
Experience in full stack web development, JavaScript/Python, scaling content, and publishing workflows.
Node.js, Vue.js, Python, Django, Redis, Postgres, React Native, Docker
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2mo
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Senior Software Developer
Hanover, Maryland, United States
OnsiteFull Time
VTG
VTG: Provides engineering and digital modernization for defense and national security.
20+ YOETwenty years of software development; multi-language proficiency (Java, Python, Rust, C++, Golang); Top Secret/SCI with Poly clearance.
Java, Python, Rust, C++, Golang, Docker, Kubernetes
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6d
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Software Developer (Systems Software)
Chantilly, Virginia, United States
OnsiteFull Time
Acuity
Acuity: Provides digital strategy and technology consulting for federal agencies.
Backend Python, PostgreSQL, AWS (SQS); frontend HTML/CSS/JavaScript; Git; user-centered design; cloud full-stack development.
Python, PostgreSQL, AWS SQS, HTML, CSS, JavaScript, Git, Docker, Kubernetes
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3w
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Software Developer, Expert
Herndon, Virginia, United States
$150k-$254k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
11+ YOE11+ years in software development; BS in CS or Information Security (or equivalent); proficiency with .NET, web, Python, PowerShell; AWS/Azure; GitHub/Jira/Jenkins/Confluence; STS/DataHound; security-focused development.
NET, WPF/XAML, C++, ASP.NET MVC Web API, HTML, CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, STS, DataHound, PowerBI
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3w
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Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Base-2 Solutions
Base-2 Solutions: Delivers engineering and technology services for national security.
14+ YOE14+ years SWE exp; BS in Computer Science; Python, Docker, AWS, Kotlin; ability to lead and design software components.
Python, Docker, AWS, Kotlin, OpenSearch, Terraform, S3
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2mo
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Software Engineer 3
Annapolis Junction, Maryland, United States
$176k-$238k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Provides IT and mission services to government agencies.
8+ YOE8+ years of software development experience; TS/SCI w/ Polygraph; strong Linux, Bash, Python; MongoDB; Docker/Kubernetes; GitLab CI; NoSQL; containerization; US citizenship.
Bash, GitLab CI/CD, Linux, MongoDB, RabbitMQ, Python, Rust, Docker, Kubernetes, Helm, Ansible, Git, PostgreSQL, Jira, Confluence
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3w
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Software Developer
Dahlgren, Virginia, United States
HybridFull Time
Zekiah Technologies
Zekiah Technologies: Provides software development and geospatial engineering services.
5+ YOEFive years of professional software development experience; Agile experience; DoD exposure a bonus; security clearance required; BS in CS/Engineering or related field; CISSP/Security+ preferred.
C/C++, C#, .NET, Java, Python, Amazon Web Services, PHP, Data Science (coding), WPF, MVC
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6d
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Software Engineer
Carlsbad or Germantown
$117k-$185k/yr OnsiteFull Time
Viasat
ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.
4+ YOE4+ years in software engineering with C/C++, Linux systems programming, networking, scripting (Bash, Python), and experience with CI/CD tools.
C, C++, Linux, Bash, Ansible, Python, Jenkins, JIRA, Git, Perforce
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1mo
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Software Developer
Rockville or United States
$98k-$163k/yr RemoteFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
4+ YOEFull stack development with Python and React; REST APIs; AWS; Docker; GitHub Actions; CI/CD; 4+ years experience; 3+ years databases; strong communication; ability to work with researchers and clinicians.
Python, React, JavaScript, TypeScript, HTML5, CSS, REST APIs, AWS, Docker, Git, CI/CD, GitHub Actions
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2w
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Software Engineer
McLean, Virginia, United States
$50k-$290k/yr OnsiteFull Time
The Swift Group: Providing engineering and cybersecurity services for national security missions.
3+ YOE3+ years software engineering; strong JS/React/Node/Python; AWS; REST APIs; databases; Git; containerization; TS/SCI clearance.
AWS, JavaScript, React, Node.js, Python, Docker, Kubernetes, API Gateway, CloudFormation, Confluence, Jira, PostgreSQL, MySQL, MongoDB
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2mo
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Software Engineer II
Annapolis Junction, Maryland, United States
$76k-$144k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
2+ YOESTEM degree with ~2 years of software development experience in C++ on Linux; proficient in Python, scripting, XML, and web GUI basics.
C++, Linux, Python, Bash, Perl, JavaScript, XML, Git, Qt, Angular, TensorFlow
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8h
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Software Developer, Senior
Herndon, Virginia, United States
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA.: Produces advanced defense, aerospace, and information security systems.
6+ YOE6+ years software development; BS in CS or related field; strong .NET, C#, WPF/XAML, C++, ASP.NET MVC, HTML/CSS, Python, PowerShell; Windows apps/services; IIS; AWS/Azure; GitHub/Jira/Jenkins/Confluence; STS/DataHound; SDLC; agile methodologies.
.NET, C#, WPF/XAML, C++, ASP.NET MVC Web API, HTML, CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, Secure Token Service, DataHound, Microsoft PowerBI
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1mo
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Software Engineer
Arlington, Virginia, United States
HybridFull Time
Elder Research
Elder Research: Provides data science, machine learning, and predictive analytics consulting services.
3+ YOE3+ years software development with C#/.NET, Azure, CI/CD, and LLM API integration; US citizenship with Public Trust clearance.
C#, NET, Azure, ARM templates, Bicep, Azure DevOps, GitHub Actions, Python, LLM APIs, OpenAI, Anthropic
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5d
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Software Engineer
Fort Meade, Maryland, United States
$210k-$230k/yr OnsiteFull Time
Markon
Markon: Provides professional services and management consulting for government agencies.
20+ YOEActive TS/SCI with poly; BS in Computer Science or related field and 20+ years of software engineering experience (or equivalent). Expert Python backend, scalable systems, strong SDLC.
Python
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3w
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Software Engineer, Level 3
Annapolis Junction, Maryland, United States
OnsiteFull Time
Independent Software
Independent Software: Provides software and systems engineering for national security missions.
12+ YOESenior software engineer with 12+ years of software development experience; strong Java/Python/C/C++ skills; Spring Boot; distributed systems; Docker/Kubernetes; CI/CD; TS SCI with poly required.
Java, Python, C, C++, Spring Boot, Kafka, JMS, Oracle, Elasticsearch, Docker, Kubernetes, Maven, Gradle, GitLab, Angular
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1mo
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Software Developer 3 (SWD3)
Annapolis Junction, Maryland, United States
OnsiteFull Time
RealmOne
RealmOne: Provides advanced technology services for national security agencies.
15+ YOESenior software developer with Java, AWS, and modern tech stack; strong self-starter with 15+ years in software development; DoD 8570 IAT II required.
Java, Spring, AWS, Angular, Hibernate, PostgreSQL, Docker, Podman, JHipster, XML, XSD, C++, Python, Perl, Ruby on Rails, Django, SpringFramework
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1mo
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Software Developer 3 (SWD3)
Annapolis Junction, Maryland, United States
OnsiteFull Time
RealmOne
RealmOne: Provides cybersecurity and intelligence services for national security missions.
15+ YOESenior software developer with Java, Linux/UNIX, and full lifecycle software development; experience with AWS, Spring, and middleware; DoD 8570 IAT Level II certification.
Java, AWS, Angular, Hibernate, PostgreSQL, Docker, Podman, JHipster, XML/XSD, C++, Python, Perl, Ruby on Rails, Django, Spring Framework, Eclipse, JBuilder
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1mo
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Software Engineer
Herndon, Virginia, United States
OnsiteFull Time
Altus Consulting
Altus Consulting: Provides specialized cybersecurity and IT systems engineering services.
2+ YOEActive TS/SCI clearance with polygraph; Bachelor's in CS/IS/Engineering; 2+ years software development experience; knowledge of cloud and security best practices.
Python, Bash, HCL, Go, AWS, Azure, GCP, Docker, Kubernetes, Databases, APIs, Cloud
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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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2w
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Software Engineer
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, US citizen, BS in engineering/science/technical field, 5 years software engineering experience, strong Java/C++/Python, Linux, Windows, Git, Jira, and multithreading.
Java, C++, Python, Git, Jira, Linux, Windows, Multithreading, JavaFX, JUnit, Mockito, Network programming in Java
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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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1mo
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Software Engineer, Senior
McLean, Virginia, United States
$130k-$196k/yr OnsiteFull Time
Freddie Mac
Freddie MacOTCQB: FMCC: Purchases and securitizes home mortgages for the secondary market.
5+ YOESenior Software Engineer with 5-7 years in production software, Python/Java, data engineering, AWS, Spark, Snowflake, and ETL pipelines. Strong design and testing skills.
AWS, AWS EMR, Snowflake, Apache Spark, Java, Python, ETL/ELT
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1mo
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Software Engineer (Hybrid)
Alexandria, Virginia, United States
HybridFull Time
Akima
Akima: Delivers mission-critical services and technology to federal agencies.
4+ YOEUS citizen; SECRET clearance; BS in software engineering or computer science; 4+ years of hands-on software development; experience with CI/CD, distributed systems, networking, embedded software.
C++, Java, Python, .NET, SQL, MySQL, Oracle, GitLab, Docker, Kubernetes, FPGA interfaces, SDR, USRP, HackRF, BladeRF
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HiringCafe market data

Python Software Developer Jobs market signals in Fairfax, 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
2,300+
Hiring companies
500+
Fresh sample
51% new in 30d
Salary visibility
53% show pay

Companies appearing in this market

BAE SystemsRealmOneAcuityAltamira TechnologiesAmentumAnaVationArdent PrinciplesBase-2 Solutions

Work location mix in visible results

Onsite: 98Hybrid: 21Remote: 4

Related browse hubs

Jobs in Fairfax VirginiaPart Time Jobs in Fairfax Virginia