Python Developer Jobs in Culpeper, VA, US

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Software Developer (Systems Software)

Chantilly, Virginia, United States

OnsiteFull Time

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

2mo

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2mo

Software Engineer

Chantilly, Virginia, United States

OnsiteFull Time

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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Software Developer - TS/SCI with Polygraph

Herndon, Virginia, United States

$153k-$207k/yr HybridFull Time

General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.

5+ YOEFive+ years of software development experience; JavaScript/React/Node.js/Python; AWS; TS/SCI with Polygraph; US citizenship; Agile/Scrum; hybrid work environment.

JavaScript, React, Node.js, Python, AWS

3mo

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3mo

Full Stack Developer, Senior

Chantilly, Virginia, United States

$113k-$238k/yr OnsiteFull Time

CACI InternationalNYSE: CACI: Provides information technology and professional services to government agencies.

7+ YOESenior full stack developer with TS/SCI with polygraph, 7+ years in software engineering, experience with OOP (Java/Ruby), Linux, AWS, Python, REST, relational databases, and Agile.

AWS, Linux, Java, Ruby, Python, Git, MySQL, PostgreSQL, Oracle, REST, Apache HTTPD, Solr, Rails, Node.js, React, Angular, Vue.js, Jenkins, CI/CD

2mo

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2mo

Senior Developer, Applied AI

Charlottesville or New York or Washington

$106k-$170k/yr RemoteFull Time

CFA Institute: Provides professional credentials and education for the investment industry.

5+ YOE5+ years of professional software development; strong full stack/backend experience; Python and/or TypeScript/Node.js; AI solution experience using OpenAI/Azure/OpenAI or similar; familiarity with search/retrieval technologies; experience with enterprise integrations.

Python, TypeScript/Node.js, OpenAI, Azure OpenAI, Anthropic, vector databases, enterprise search, Microsoft 365, Teams, SharePoint, Atlassian, Salesforce

1mo

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1mo

Software Developer

Chantilly, Virginia, United States

OnsiteFull Time

V2XNYSE: VVX: Integrated mission lifecycle support for global defense operations.

BS in Computer Science/IT or equivalent; Python or similar language; Linux administration or automation; TS/SCI with Polygraph required.

Python, Linux, Bash, Automation, Embedded Systems

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Software Developer, Senior

Herndon, Virginia, United States

$133k-$226k/yr OnsiteFull Time

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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Software Engineer

Sterling, Virginia, United States

OnsiteFull Time

Northstrat: Provides IT and engineering solutions for US government agencies.

5+ YOEBachelor’s in software engineering, computer science, information systems, or equivalent; 5+ years in software development; strong OO languages (Java, JEE, C++, Python); RESTful services; microservices and containers; TS/SCI clearance with polygraph.

Java, JEE, C++, Python, SpringBoot, Mockito, Lombok, OpenAPI, Swagger, REST, Microservices, Docker, Kubernetes, Helm, Git, Gradle, Kafka, MongoDB, ActiveMQ, NiFi, AWS, Linux, CI/CD

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DevOps Engineer

Reston, Virginia, United States

$72k-$115k/yr RemoteFull Time

Dev Technology Group: Provides information technology services to federal government agencies.

3+ YOEBachelor's degree or equivalent with 3 years software development experience; containerized cloud environment; Linux; IaC; Docker and Jenkins; CI/CD; client collaboration; strong communication; team player; Java/JS/Python a plus.

Docker, Jenkins, CloudBees, Ansible, Terraform, AWS, EKS, EC2, RDS, Lambda, CloudFormation, Bash, Java, JavaScript, Python

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Software Engineer (mobile)

Chantilly or McLean

HybridFull Time

M1 Technology: Developing mission-critical technology for the U.S. intelligence community.

Experience with Agile; development, maintenance, and testing of applications; enterprise SecDevOps tools (GitHub, Jenkins); independent testing throughout lifecycle; maintenance of existing infrastructure; development in Ruby, Java, JavaScript, TypeScript, HTML, C/Objective C, R, Python; ensure unit/integration/UAT testing and system changes; mobil...

GitHub, Jenkins, Ruby, Java, JavaScript, TypeScript, HTML, C, Objective C, R, Python, XCode, Swift, SwiftUI

2mo

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2mo

Software Engineer

Reston, Virginia, United States

OnsiteFull Time

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

1mo

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1mo

Backend Software Engineer

Reston, Virginia, United States

RemoteFull Time

Game Plan Tech: Building secure cloud and AI systems for government.

Backend developer skilled in Java or Python, databases (SQL/NoSQL), Git/CI/CD, security, containers (Kubernetes), and cloud platforms (GCP/AWS/Azure).

Java, Python, Git, Kubernetes, Docker, CI/CD, Cloud Platforms, REST API, SQL, NoSQL

2mo

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2mo

Android Developer

Chantilly, Virginia, United States

OnsiteFull Time

REDLattice: Develops advanced cybersecurity tools and offensive cyber solutions for national security.

Proficient in C/C++, Python; embedded systems; Android/Linux kernel vulnerability research; knowledge of Android internals; security clearance required.

C/C++, Python, Embedded Systems, Android kernel, Linux kernel, Makefile, ADB, Network protocols

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Software Developer

Dahlgren, Virginia, United States

OnsiteFull Time

Zekiah Technologies: Provides software development and geospatial engineering services.

Extensive Linux system administration, scripting (Bash/Python), infrastructure automation, security/compliance knowledge, virtualization/containerization, and CI/CD experience.

Linux, Ansible, Terraform, Bash, Python, VMware, KVM, Docker, Podman, GitLab CI, Jenkins, GitHub Actions, Prometheus, Grafana, ELK

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Lead Full Stack Developer

Arlington or Herndon

$171k-$257k/yr OnsiteFull Time

Two Six Technologies: Develops cybersecurity and data systems for national security missions.

7+ YOELead full stack developer with 7+ years; TS clearance with SCI eligibility; strong Python/JavaScript; in-person in Arlington/Herndon; BS in Computer Science or related field.

Python, JavaScript, Linux, Kubernetes, Jenkins, GitLab, AWS, OpenStack, Ansible, Terraform, OpenTofu

1mo

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1mo

Full Stack Software Engineer, Developer (Experienced or Senior)

Chantilly or Seal Beach

OnsiteFull Time

BoeingNYSE: BA: Designs, manufactures, and sells aircraft, satellites, and defense systems.

5+ YOE5+ years in OO design and Java/C++/Python; full-stack Java development; active Top-Secret/SCI eligibility with CI poly; aerospace/space domain experience preferred.

Java, C++, Python, Spring, Hibernate, JDBC, REST/Open API, Jenkins, GitLab CI, Maven, Gradle, SQL, NoSQL, WebLogic, JMS, HTML, CSS, JavaScript, React, Open Layers

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Software Engineer-7975

Reston, Virginia, United States

HybridFull Time

ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.

2+ YOEBachelor's degree in Computer Science or Engineering and 2 years' experience with Python/Scala/SQL, Databricks; AWS (IAM, S3, Airflow, Athena); Big Data (Spark, Presto, Snowflake); Linux; ML model development and A/B testing.

Python, Scala, SQL, Databricks, AWS, IAM, S3, Airflow, Athena, Spark, Presto, Snowflake, Linux, LightGBM

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Apache Spark Developer

Herndon or Springfield or St. Louis or Aurora

OnsiteFull Time

Absolute Business Solutions Corp: Provides technology and intelligence services to the US government.

5+ YOETS/SCI eligibility, Bachelor's degree or equivalent experience in data engineering or Spark development, strong Spark, Python, Scala, and distributed data systems experience.

Apache Spark, PySpark, Scala, Docker, Kubernetes, Git, Jenkins, Parquet, Delta Lake, S3

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Java Developer

Vienna, Virginia, United States

$150k-$195k/yr HybridFull Time

Koniag Government Services: Providing technical and professional services to federal agencies.

4+ YOE4+ years experience; TS/SCI clearance; on-site Vienna, VA; Java development; AWS; NoSQL preferred.

Java, JavaScript, XQuery, Python, HTML, SQL, NoSQL, AWS

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Software Engineer

Aurora or Sarasota or Fairfax

OnsiteFull Time

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

1mo

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1mo

Application Developer

Chantilly, Virginia, United States

OnsiteFull Time

J5 Consulting: Provides specialized cybersecurity and technical services to government and commercial clients.

2+ YOEExperience building secure Java web apps (Spring), Python, React; SQL/NoSQL; AWS; REST APIs; CI/CD; Git; DevOps; Elasticsearch/MongoDB; NiFi; ETL; MapReduce; HBase.

Java, Spring, Spring Boot, Spring Security, Python, JavaScript, TypeScript, React, PostgreSQL, MySQL, PL/SQL, AWS, Jenkins, Git, Elasticsearch, MongoDB, NiFi, ETL, MapReduce, HBase

1mo

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1mo

Application Developer / Software Engineer

Washington or Fairfax

HybridFull Time

Navteca: Developing specialized cloud and immersive technology for government agencies.

4+ YOEMid-level application developer with 4–6 years of experience, SDLC expertise, on-site or hybrid work in the DMV area, strong skills in web and enterprise app tech; AI/ML preferred.

ASP.NET, C#, Python, Java, C/C++, HTML, XHTML, XML, XSLT, CSS, JavaScript, SQL, SQL Server, Oracle, MarkLogic, Visual Studio, Git, CI/CD pipelines, .NET Framework, SharePoint, Microsoft Power Platform, IIS, SQL Reporting, ETL, AI, ML

2mo

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2mo

AI Engineer III - Blue Ring

Kent or Renton or Reston

$165k-$231k/yr OnsiteFull Time

Blue Origin: Manufacturer of reusable launch vehicles and space propulsion systems.

5+ YOE5+ years software development in AI/ML; Python; PyTorch or TensorFlow; multi-agent systems; RAG pipelines; time-series ML; AWS; Docker/Kubernetes; CI/CD.

Python, PyTorch, TensorFlow, AWS, Docker, Kubernetes, CI/CD, Vector databases, LLMs, RAG pipelines

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Software Engineer

Chantilly, Virginia, United States

OnsiteFull Time

SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.

9+ YOETS/SCI with poly; Bachelor's in computer science or related field; 9+ years of relevant experience; Python with Flask; Python/JavaScript/CSS/SQL; strong communication and interpersonal skills; ability to work independently.

Python, Flask, JavaScript, CSS, SQL

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Software Developer, Senior

Herndon, Virginia, United States

$133k-$226k/yr OnsiteFull Time

BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.

6+ YOESix years of software development experience; Bachelor's degree in Computer Science, Information Security, or related field (or equivalent); proficiency with .NET, C#, WPF/XAML, C++, ASP.NET MVC Web API, HTML/CSS, Python, PowerShell; experience with Windows apps, Windows services, and IIS; cloud experience with AWS and Azure; familiar with GitHub, ...

.NET, C#, WPF/XAML, C++, ASP.NET Web API, HTML/CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, STS, DataHound, PowerBI

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AI Developer

Fairfax, Virginia, United States

RemoteFull Time

Future Technologies: Provides technical engineering and mission support for defense systems.

Hands-on AI/ML development, secure DoD environments, CI/CD, IaC, and LLM integration; US citizenship and potential Secret clearance.

Python, PyTorch, TensorFlow, NLP/LLMs, GitHub, GitLab, Jenkins, Terraform, AWS SageMaker, Bedrock GovCloud, OpenAI, Mabl, Applitools

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Senior Application Engineer

Vienna or Winchester or Pensacola

$115k-$180k/yr HybridFull Time

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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Software Integration Engineer

Chantilly, Virginia, United States

$87k-$130k/yr OnsiteFull Time

The Aerospace Corporation: Provides technical expertise and research for national space programs.

2+ YOEBachelor's in STEM; 2+ years web app development with Java/Python; REST/Cloud; Agile; Atlassian tools; Git/Subversion; Linux/Windows; willing to travel ~15%; able to obtain security clearance.

Java, Python, Spring Framework, REST, Cloud, Git, Subversion, JIRA, Confluence, Bitbucket, SourceTree, Linux, Windows

1mo

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1mo

Backend Developer

Springfield, Virginia, United States

OnsiteFull Time

Trinity Global Consulting: Provides professional support services to US government agencies.

2+ YOEBachelor's in CS/Engineering/GIS or related field; 2+ years backend experience; Python/Node.js/Java; REST APIs; ArcGIS Enterprise; Docker/Kubernetes; API design; US Citizenship; Top Secret/SCI clearance eligibility.

Node.js, Python, Java, Docker, Kubernetes, ArcGIS Enterprise, REST APIs

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Staff SW Engineer, Ground & Control Services

Seattle or Herndon or United States

$155k-$180k/yr HybridFull Time

BlackSkyNYSE: BKSY: Provides real-time satellite imagery and geospatial intelligence analytics.

10+ YOE10+ years software development; proficient in Go/Python/C++; cloud and on-prem microservices; satellite ops experience; US citizenship.

Go, Python, C++, AWS, Azure, GCS, Kubernetes, Git, CI/CD, On-Prem, Terraform, Nomad

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Associate Software Engineer

Reston, Virginia, United States

OnsiteFull Time

Metron: Develops scientific software and mathematical models for national security.

Bachelor’s degree in computer science, mathematics, physics, or related field; proficiency in Java, TypeScript, Python, or C++; strong OO programming; full-stack web development experience; US citizenship with eligibility for security clearance.

Java, TypeScript, Python, C++, MongoDB, RabbitMQ, Spring Boot, React, Redux, WebGL, OpenGL

2mo

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2mo

Senior Software Engineer/ Elastic Engineer

Dulles, Virginia, United States

OnsiteFull Time

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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Software Developer

Quantico, Virginia, United States

$130k-$145k/yr OnsiteFull Time

Resource Management Concepts: Provides IT, cybersecurity, and engineering solutions to government agencies.

Active DoD Secret clearance required; Associate degree or 5 years related experience; DoD 8140.03 IAT Level II; DoD 8570 CSSP Infrastructure; Windows and Linux; scripting in SQL, Java, Python, CSS, HTML, ASP, RegEx, VB.NET, PowerShell; knowledge of PM methodologies.

Windows, Linux, SQL, Java, Python, CSS, HTML, ASP, RegEx, VB.NET, PowerShell, .NET, C#, Batch

1mo

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1mo

Senior Software Engineer

King George, Virginia, United States

OnsiteFull Time

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

1mo

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1mo

Sr Software Development Engineer

McLean or Reston

$164k-$264k/yr OnsiteFull Time

WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.

5+ YOE5+ years in large-scale cloud infrastructure, DevOps, and software development; Bachelor's degree in computer science or related field; Terraform, Argo CD; Python/Go/Ruby; Kubernetes; AWS; security/compliance; TS/SCI w/CI Poly preferred

Terraform, Argo CD, Kubernetes, AWS, Python, Go, Ruby

2mo

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2mo

Staff Engineer

Chantilly or Washington

HybridFull Time

History Factory: Provides archival management and brand heritage consulting for organizations.

4+ YOE4+ years building web apps with Node.js/React/Next.js; Python; AI platforms; Zapier; secure coding; SQL/relational modeling.

Node.js, React, Next.js, Laravel, Python, Zapier, OpenAI API, Google Gemini API, Codex CLI, Claude Code, Gemini CLI, NotebookLM, OAuth, OIDC, Swagger, MySQL, PostgreSQL, Git, CI/CD, Docker, Vitest, Pytest

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Ground Station Systems Software Engineer

Chantilly, Virginia, United States

OnsiteFull Time

Lynk Global: Enables direct satellite-to-phone connectivity for standard mobile devices.

Design, develop, deploy, and maintain ground station software; strong Linux, Rust/Python; DevOps; telemetry; network and infrastructure as code.

Rust, Python, React, AWS, Terraform, Ansible, Packer, GitLab CI/CD

1mo

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1mo

Radar Research Engineer

Chantilly, Virginia, United States

OnsiteFull Time

KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.

10+ YOERadar/SAR/MTI processing, algorithm development, MATLAB/C/C++, Python; TS/SCI with Poly preferred; 10+ years experience; advanced degree preferred.

MATLAB, C, C++, Python, FORTRAN

2mo

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2mo

Principal Engineer, Software (Reston, VA, US, 20191)

Reston, Virginia, United States

OnsiteFull Time

SES Space & DefenseEuronext Paris: SESG: Provides satellite-based communications and network services to government agencies.

10+ YOEUS citizenship, ability to obtain/maintain security clearance, BS in CS or related field, 10+ years in applications development, strong communication, multi-architecture development, expert in JS (TypeScript/React/Angular) and Python, SDLC/Agile, SOLID, data eng, Docker/Kubernetes, cloud-native, secure DevOps.

JavaScript, TypeScript, React, Angular, Python, Docker, Kubernetes, SQL, ETL, Data warehousing, Data streaming