140 flask jobs at 79 companies in Fairfax, VA

3mo
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Senior Database Engineer with Poly
Hanover, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: AI-powered decision intelligence for complex mission environments.
10+ YOEBachelor’s degree and 10+ years of database experience; TS/SCI with Poly clearance; MongoDB/MariaDB; Django/Flask; REST/microservices.
MongoDB, MariaDB, Django, Flask, REST, Microservices, AWS, Docker, IDEs, JSON, XML, Jira, Confluence, Git, Agile
2w
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Java Developer
McLean, Virginia, United States
$160k-$200k/yr OnsiteFull Time
Bridge Core
Bridge Core: Provides technical services and cybersecurity solutions to government agencies.
Design and maintain scalable Java applications; experience with Python scripting, cloud development, Flask, semantic search, and Tableau; TS/SCI with polygraph preferred/required.
Java, Python, Flask, Tableau
1mo
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Software Engineer 1
Herndon or Potomac
OnsiteFull Time
Kepora
Kepora: A technology building software solutions for mission-focused customers.
U.S. citizenship and active TS/SCI with Full Scope Polygraph required. Proficiency in Python, Django or Flask, MongoDB or MariaDB, REST endpoint development, and microservice design.
Python, Django, Flask, MongoDB, MariaDB, Swagger, AWS, C2S, Docker, Visual Studio Code, JSON, XML, Jira, Confluence, Git
1mo
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Application Engineer 4 (API)
Linthicum Heights, Maryland, United States
HybridFull Time
Themis Insight
Themis Insight: Provides technical consulting and data analytics for national security.
4+ YOETS/SCI with Polygraph required. Python, Docker, Django/Flask, MariaDB or MongoDB, REST and microservices experience. Minimum 4-12 years experience depending on degree.
Python, Docker, Django, Flask, MariaDB, MongoDB, ReST, AWS, JSON, XML, Jira, Confluence, Git
2mo
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Python Web Application Developer
Tysons Corner or Falls Church
$32-$45/hr HybridFull Time
IntelliDyne
IntelliDyne: Provides IT consulting and technology solutions to government agencies.
5+ YOE5+ years Python development, Flask experience, web app deployment and security, authentication and certificate management, REST API and database integration, Git, strong debugging and communication skills.
Python, Flask, Microsoft Entra ID, HTML, CSS, JavaScript, REST APIs, OAuth, SSO, PostgreSQL, SQL Server, MySQL, Git, Azure, AWS, IIS, NGINX, Apache, Docker, Linux, Windows, CI/CD
1mo
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Application Developer (backend) 4
Linthicum, Maryland, United States
$198k-$212k/yr OnsiteFull Time
Lentech
Lentech: Provides mission-critical IT and engineering solutions for government agencies.
6+ YOEDevelop backend Python microservices and ReST endpoints using Django/Flask; work with MongoDB or MariaDB, Docker, and CI tooling; 6+ years experience typically required depending on degree.
Python, Docker, Django, Flask, MariaDB, MongoDB, ReST, JSON, XML, Jira, Confluence, Git, AWS
2mo
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Senior Database Engineer with Poly
Hanover, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: Provides AI-powered decision intelligence software for national security.
10+ YOEBachelor's degree and 10+ years database experience; TS/SCI with Poly required; proficiency with MongoDB or MariaDB; experience with Django or Flask, REST/microservices, debugging, scaling, and database optimization.
MongoDB, MariaDB, Django, Flask, REST, Swagger, AWS, C2S, Docker, Visual Studio Code, JSON, XML, Jira, Confluence, Git
1mo
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Full Stack Developer
Chantilly, Virginia, United States
OnsiteFull Time
NS2 Mission
NS2 Mission: Delivers secure data management and analytics for national security.
5+ YOE5+ years Python experience, familiarity with Flask/Django/FastAPI, SQL/ORM, JavaScript/TypeScript front-end frameworks, unit/integration testing, containerized AWS deployments, and security clearance eligibility.
Python, Flask, Django, FastAPI, SQL, SQLAlchemy, JavaScript, TypeScript, CSS, React, Angular, Vue, Docker, Kubernetes, AWS, RESTful APIs
1d
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Senior Python Engineer
Arlington, Virginia, United States
$118k-$163k/yr HybridFull Time
Excella
Excella: Provider of agile software and AI solutions for government agencies.
3+ YOERequires 3+ years developing Python web applications, Django, Flask, or FastAPI, RESTful APIs, SQL databases, testing, Git, Agile practices, and strong client-facing problem-solving skills.
Python, Django, Flask, FastAPI, PostgreSQL, MySQL, SQLAlchemy, PyTest, Unittest, Git, Docker, Kubernetes, MongoDB, Redis, Pandas, NumPy, Spark, Airflow, Jenkins, GitLab CI/CD, AWS Lambda, ChatGPT, Claude, GitHub Copilot
6d
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Full Stack Developer
Fort Meade or Columbia
$150k-$190k/yr OnsiteFull Time
Visionist
Visionist: Provides software engineering and data analytics for national security.
8+ YOEBachelor's degree in a technical discipline or equivalent experience, 8 years of software development, production APIs, Django/Flask/FastAPI, Docker, Kubernetes, Helm, CI/CD, databases, Git, Jira, and Confluence.
Django, Flask, FastAPI, Docker, Kubernetes, Helm, CI/CD, SQL, NoSQL, PostgreSQL, MySQL, Elasticsearch, MongoDB, Git, Jira, Confluence
6d
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Senior Python Developer
Washington or Alabama or Colorado or Delaware or Florida or Georgia or Illinois or Indiana or Kansas or Louisiana or Maryland or Minnesota or Mississippi or North Carolina or New Jersey or Ohio or Pennsylvania or South Carolina or Tennessee or Texas or Virginia
$90k-$130k/yr RemoteFull Time
Tripoint Solutions
Tripoint Solutions: Providing technology modernization and data services to federal agencies.
5+ YOEBachelor’s degree in a technical field, 5+ years of Python development, Django and Flask, RESTful APIs, Git, PostgreSQL, Unix/Linux, automated testing, HTML, JavaScript, cloud platforms, and Jupyter Notebooks.
Python, AWS, ServiceNow, UiPath, Django, Flask, Jupyter Notebook, Git, PostgreSQL, Unix, Linux, HTML, JavaScript, Docker, Kubernetes, WCAG, Section 508
2w
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AI Engineer
Washington, District of Columbia, United States
OnsiteFull Time
Analytica
Analytica: Provides data analytics and IT solutions for federal government agencies.
4+ YOEBachelor's degree in CS/Statistics or related, 4+ years developing software/AI/ML, Python, Flask/FastAPI, JavaScript, experience with LLMs/Generative AI, and active IRS MBI clearance required.
Python, Flask, FastAPI, JavaScript, LangGraph, CrewAI, Haystack, AutoGen, Large Language Models (LLMs)
3w
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Full Stack Developer
Chantilly, Virginia, United States
$112k-$222k/yr OnsiteFull Time
Accenture Federal Services
Accenture Federal ServicesNYSE: ACN: Provides technology and consulting services to U.S. federal agencies.
5+ YOE5+ years Python with Flask/Django/FastAPI, 2+ years SQL, 1+ years AWS, JavaScript/TypeScript/CSS and React/Angular/Vue experience, container deployment, active TS/SCI with Poly.
Python, Flask, Django, FastAPI, SQL, SQLAlchemy, AWS, JavaScript, TypeScript, CSS, React, Angular, Vue, uv, ruff, pyright, pytest, coverage, Selenium, Karma, WordPress, containers
2mo
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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
2w
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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
3mo
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Senior Python Developer (Lead)
Washington, District of Columbia, United States
RemoteFull Time
Otoe Missouria Group
Otoe Missouria Group: Tribally owned federal contractor providing IT, construction, and professional services.
7+ YOE7+ years software development, strong Python 3.x experience, FastAPI/Flask/Django, REST API design, Agile and CI/CD/DevSecOps experience, leadership experience, eligible for Public Trust clearance.
Python 3.x, FastAPI, Django, Flask, AWS, Azure, Google Cloud Platform, Docker, Kubernetes
1mo
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Senior Backend API Engineer
Linthicum, Maryland, United States
OnsiteFull Time
Quevera
Quevera: Software engineering and cloud solutions for government and defense.
7+ YOEActive TS/SCI with polygraph required; 7+ years backend development experience with Python, RESTful APIs, Django/Flask, Docker, MariaDB/MongoDB; experience with Git, Jira, Confluence; strong troubleshooting and communication skills.
Python, Django, Flask, MariaDB, MongoDB, JSON, XML, Docker, Git, Jira, Confluence, AWS
1mo
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Generative AI Engineer (Clearance Required)
Arlington, Virginia, United States
HybridFull Time
InterImage
InterImage: Provides IT modernization and cybersecurity services to federal government agencies.
5+ YOEActive Top Secret clearance, 5+ years software development, 2+ years Generative AI/ML, strong Python, experience with LLMs, Azure, containerization, FastAPI/Flask, Git and CI/CD, and distributed systems.
Python, GPT, Llama, Claude, Mistral, FastAPI, Flask, Microsoft Azure, Microsoft Azure OpenAI Service, Azure Kubernetes Service (AKS), Azure Functions, Azure Storage, Microsoft Azure AI Search, Azure Machine Learning, Azure AI Foundry, Azure Cognitive Services, Docker, Kubernetes, Git, CI/CD, DevSecOps, LangChain, LangGraph, Semantic Kernel, LlamaIndex, Pinecone, Milvus, pgvector, Chroma, Model Context Protocol (MCP), Terraform, Bicep
1mo
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Senior Software Architect
Washington or Sarasota or Miami or New York City or Toronto or Longboat Key
$165k-$190k/yr OnsiteFull Time
Rumble
RumbleNASDAQ: RUM: Video sharing platform and cloud infrastructure provider.
Expert-level Python backend development; experience with FastAPI or Flask, SQLAlchemy, RESTful APIs, OAuth2/OpenID Connect, distributed systems, PostgreSQL/MySQL, Docker, Kubernetes, Git-based CI/CD, and architectural leadership.
Python, FastAPI, Flask, SQLAlchemy, Jinja2, OAuth2, OpenID Connect, PostgreSQL, MySQL, Docker, Kubernetes, Git, Go, React, TypeScript, OpenStack, Ceph, Odoo, Pytest
1w
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Senior Software Automation Testing Engineer
Ashburn, Virginia, United States
$98k-$154k/yr HybridFull Time
Unissant
Unissant: Delivers data analytics and cybersecurity services to government agencies.
5+ YOE5+ years software testing/automation experience, Bachelor's in Computer Science or related, Python 3.8+, FastAPI/Django/Flask, pytest/unittest, Locust, AWS, SQL, GitLab/Harness/Jenkins, ability to obtain Public Trust.
Python, FastAPI, Django, Flask, JSON, XML, SQL, Unix, pytest, unittest, Locust, GitLab, Harness, Jenkins, Oracle, PostgreSQL, AWS