Backend Python Developer Jobs in Triangle, VA, US

Save

Mark Applied

Hide

PySpark Engineer

Chantilly, Virginia, United States

OnsiteFull Time

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

Experience with big data using Spark/PySpark; Solr/Elasticsearch; data quality; RegEx; Java/JavaScript/Bash/Python; AWS; Java 8+ (upgrading to 17); Jira and GitHub; Spring Boot and RESTful APIs; Linux (CentOS); middleware/backend development.

Spark, PySpark, Solr, Elasticsearch, RegEx, Java, JavaScript, Bash, Python, AWS, Jira, GitHub, Spring Boot, RESTful APIs, Linux, CentOS

Save

Mark Applied

Hide

Full Stack Engineer III

Washington, District of Columbia, United States

$125k-$135k/yr HybridFull Time

DSPolitical: Provides voter-targeted digital advertising for Democratic and progressive campaigns.

5+ YOE5+ years web app development; mentorship; backend in PHP/Python/Node; MySQL; JavaScript with Vue/React/Angular; production web app experience; US work authorization.

PHP, Python, Node.js, MySQL, Vue, React, Angular, JavaScript

Save

Mark Applied

Hide

Senior Software Engineer (Command & Control)

Reston, Virginia, United States

$155k-$185k/yr OnsiteFull Time

Umbra: Operates high-resolution synthetic aperture radar imaging satellites.

5+ YOEBachelor's in CS/engineering; 5-8+ years backend experience; Python backend/API design; cloud (AWS); distributed systems; Postgres; strong collaboration.

Python, REST, AWS, PostgreSQL, Docker, Kubernetes, Rust

2mo

Save

Mark Applied

Hide

2mo

Senior Software Developer

Washington, District of Columbia, United States

$113k-$188k/yr OnsiteFull Time

Guidehouse: Provides management, technology, and risk consulting services globally.

8+ YOE8+ years of professional software development in secure or regulated environments; strong backend and frontend skills; TS clearance or ability to obtain; US citizenship.

Java, Spring Boot, DotNet/C#, Python, Node.js, React, Angular, Vue, PostgreSQL, Oracle, CI/CD, GitLab CI, Jenkins, GitHub Actions, Docker, Kubernetes/OpenShift, Terraform, CloudFormation, RMF, STIGs, FedRAMP, AWS GovCloud, Azure Government

1mo

Save

Mark Applied

Hide

1mo

Full Stack Developer

Bethesda, Maryland, United States

OnsiteFull Time

Momentum: Engineering and technology services for the Department of Defense.

3+ YOEMid-level full stack developer with 3+ years in UI/UX, backend, AWS, IaC, Docker/Kubernetes; TS/SCI poly clearance required.

React, Java, Python, Go, SQL, MongoDB, PostgreSQL, Oracle, MySQL, AWS, CDK, Terraform, CloudFormation, Docker, Kubernetes, ECS, SQS, SNS, RDS, DynamoDB, IAM

Save

Mark Applied

Hide

Software Engineer - 90402844 - Washington DC, Philadelphia PA or Wilmington DE (US)

Washington or Wilmington or Philadelphia

$72k-$93k/yr OnsiteFull Time

Amtrak: Operates America's national intercity passenger railroad system.

1+ YOEBachelor’s degree or equivalent; 1+ year software engineering; Java, Python, SQL; frontend/backend development; CI/CD and cloud; onsite in DC/DE/PA.

Angular, React, Java, Python, SQL, NoSQL, AWS, Azure, CI/CD

Save

Mark Applied

Hide

Software Engineer - Frontend

Reston, Virginia, United States

$91k-$142k/yr HybridFull Time

Noblis: Provides science and technology solutions for government missions.

3+ YOEFront-end software engineer with Angular or React, Python backend, TS/SCI clearance, US citizenship.

React, Angular, Python, AWS, Git, CI/CD, REST API

2mo

Save

Mark Applied

Hide

2mo

Senior Engineer

Chevy Chase or Palo Alto or Seattle

$105k-$230k/yr HybridFull Time

GEICO: Provides automobile and various insurance products to consumers.

5+ YOE5+ years in software development; ReactJS with Redux and Hooks; backend with .NET or Java; cloud (Azure/AWS/GCP); REST APIs; SQL/NoSQL; Bachelor's or Master's in CS or related field.

ReactJS, Redux, Hooks, .NET, Java, Azure, AWS, GCP, Docker, Kubernetes, SQL, NoSQL, Python, Golang, PowerShell, RESTful APIs, Spring Boot, ASP.NET Core

1mo

Save

Mark Applied

Hide

1mo

Senior Software Developer - Clearance Required

Reston or Joint Base Anacostia-Bolling

HybridMultiple Commitments Available

Cydecor: Providing technology solutions and mission support to defense agencies.

6+ YOE6+ years in distributed software development; frontend tech stack (Vue, JavaScript, TypeScript); backend services; Agile; TS/SCI clearance preferred.

Vue, JavaScript, TypeScript, React, Angular, Linux, Git, Jira, Confluence, Artifactory, APIs, Relational databases, NoSQL, Agile, Security-focused development, CI/CD, Python, Java, Docker, Kubernetes, OpenShift, Jenkins, Keycloak, OAuth2, JWT, SonarQube, OWASP ZAP, Fortify, CI/CD pipelines, AWS, Azure, CI/CD

2mo

Save

Mark Applied

Hide

2mo

Lead Software Engineer

Arlington, Virginia, United States

$161k-$266k/yr HybridFull Time

MastercardNYSE: MA: Global payment technology providing transaction processing services.

Bachelor's degree in Computer Science or related field; senior/lead software engineering experience; strong backend with Java (preferred) or C#/Python; experience with data platforms and AWS.

Java, Python, Databricks, Airflow, Snowflake, Aws, Jenkins, Splunk

Save

Mark Applied

Hide

Cyber Systems Engineer

Annapolis Junction or Washington

$160k-$190k/yr HybridFull Time

Metrea: Provides specialized aerospace and defense services for national security.

Design and deliver real-time data processing software for edge and backend systems; strong Rust, Python, Bash; security-focused engineering experience; capable of independent work.

Rust, Python, Bash, Linux, TCP/IP

Save

Mark Applied

Hide

Full Stack Software Engineer – McLean, VA (Hybrid/Remote) – TS/SCI with Polygraph Required

McLean, Virginia, United States

HybridFull Time

Synertex: Provider of intelligence support and IT services for government.

5+ YOE5+ years software development, 3+ years on classified IC programs; strong Python/JS/TS; React frontend; backend with Python/Golang/Java; ELK; CI/CD; Docker.

React, TypeScript, Python, Golang, Java, FastAPI, Flask, Django, Elasticsearch, Kibana, Jenkins, GitHub Workflows, Docker, PostgreSQL, MySQL, Oracle, Linux, Kafka, RabbitMQ

1mo

Save

Mark Applied

Hide

1mo

AI Engineer

Annapolis Junction, Maryland, United States

OnsiteFull Time

InterImage: Provides IT modernization and cybersecurity services to federal government agencies.

Strong Python, backend languages (Java/Go/C++/Scala), SQL; ML frameworks (TensorFlow, PyTorch, Scikit-learn, Hugging Face); AWS with MLOps; REST/gRPC; Docker/Kubernetes; CI/CD; big data (Spark/Hadoop); data modeling and analytics.

Python, Java, Go, C++, Scala, SQL, TensorFlow, PyTorch, Scikit-learn, Hugging Face, Docker, Kubernetes, Jenkins, GitLab CI, GitHub Actions, Terraform, CloudFormation, AWS, Spark, Hadoop, Flink, Kafka, PostgreSQL, MySQL, MongoDB, Elasticsearch, DynamoDB

Save

Mark Applied

Hide

Principal Engineer - Agentic AI Applications

Washington, District of Columbia, United States

$168k-$230k/yr HybridFull Time

SerkoNZX: SKO: Provides online corporate travel and expense management software.

12+ YOE12+ years software engineering; 4+ years in technical leadership; production experience with LLM-powered or agentic systems; Python backend expertise; strong observability, architecture, and testing skills

Python, LangGraph, AutoGen, CrewAI, TypeScript, Node.js, RAG pipelines, vector databases, tool-calling APIs, multi-step reasoning

1mo

Save

Mark Applied

Hide

1mo

Software Engineer SME

Herndon, Virginia, United States

$50k-$290k/yr OnsiteFull Time

The Swift Group: Providing engineering and cybersecurity services for national security missions.

10+ YOE10+ years backend software/platform experience; strong Java, Ansible/Python, Postgres/MySQL/MariaDB, Linux, AWS; microservices and RESTful APIs; cloud deployment; containerization; Git workflows; TS/SCI with Poly clearance required; BSCS or equivalent.

Java, Ansible, Python, PostgreSQL, MySQL, MariaDB, Linux, AWS, Git, GitLab, GitHub

Save

Mark Applied

Hide

Full Stack Software Engineer

Reston or Chicago or Plano

$123k-$161k/yr HybridFull Time

Fannie MaeOTCQB: FNMA: Providing liquidity and stability to the U.S. housing market.

2+ YOE2 years SDLC experience; backend Java/TypeScript/Python; Angular frontend; SQL/NoSQL; AWS; DevOps; GenAI tools; mortgage domain knowledge.

Node.js, Python, Java, Spring Boot, Angular, NgRx, RxJS, TypeScript, JavaScript, Git, Jenkins, Docker, Terraform, AWS CloudFormation, DynamoDB, PostgreSQL, Oracle, Postman, Putty, IntelliJ, VSCode

13h

Save

Mark Applied

Hide

13h

Staff Software Engineer, Defense and Consulting Engineering

Reston or New York

$207k-$300k/yr OnsiteFull Time

GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.

8+ YOEBachelor's degree or equivalent; 8 years software development; 5 years full-stack across backend (Java, Python, Go, C++) and frontend (JavaScript/TypeScript, HTML/CSS); 5 years testing/launching software; 3 years design/architecture.

Java, Python, Go, C++, JavaScript, TypeScript, HTML, CSS

Save

Mark Applied

Hide

Full-Stack Engineer

Arlington, Virginia, United States

HybridFull Time

Zetier: Independent software developer focused on secure systems.

5+ YOE5+ years building production full-stack apps; proficient with React/Angular/Vue; strong TS/JS and UI; Python backend; REST; databases; message brokers; distributed teams; active U.S. security clearance.

React, Angular, Vue, TypeScript, JavaScript, Python, Flask, FastAPI, Bootstrap, Material, PostgreSQL, ORM, REST, RabbitMQ, AMQP, Docker, Kubernetes, Figma, uBoot, firmware, IOT, Binary Ninja, IDA Pro

1mo

Save

Mark Applied

Hide

1mo

Senior Software Engineer

McLean, Virginia, United States

$130k-$196k/yr OnsiteFull Time

Freddie MacOTCQB: FMCC: Purchases and securitizes home mortgages for the secondary market.

5+ YOE5-7 years of professional experience; BS in computer science or related field; backend Java/Spring; frontend Angular/JavaScript/TypeScript; automation testing; DevOps tools; Python/SAS preferred; financial modeling experience preferred.

Java, Spring, Spring Boot, Camel, Hibernate, Angular, JavaScript, TypeScript, JUnit, Docker, Jenkins, Kubernetes, Git, Gradle, CI/CD, OCP, Python, SAS

2mo

Save

Mark Applied

Hide

2mo

Senior Full-Stack Engineer

Culver City or Linthicum or Allen or Woodcliff Lake or Chicago or Orlando or Baton Rouge or Waltham or Phoenix or Harrisburg or West Valley City or Austin or Alpharetta or San Diego or Indianapolis or Lexington or Parma or Little Rock or Asheville or Birmingham or Chantilly or Washington or Brentwood or Plantation or Fort Collins or San Mateo or Schaumburg or Brooklyn

$140k-$180k/yr OnsiteFull Time

Motorola SolutionsNYSE: MSI: Provides safety and security technology for government and enterprise.

7+ YOE7+ years in software development; Bachelor's degree in CS/Engineering; backend (Node.js) and frontend (React) experience; API integrations; cloud and database experience.

Node.js, HapiJS, Python, JavaScript, React, SQL, Serverless, Lambda, CloudFormation, Elastic Beanstalk, EC2, VPC, DynamoDB, RDS, G Suite, Microsoft Graph, Okta, OneLogin, Slack, Linux, Docker, Datadog, CloudWatch, MQTT, log/data pipelines

2mo

Save

Mark Applied

Hide

2mo

Sr. Web Application Developer #1703183

Chantilly, Virginia, United States

$121k-$135k/yr OnsiteFull Time

Network Designs, Inc.: Provides IT, network, and cybersecurity solutions to government agencies.

8+ YOEDesign, develop, test web apps; US citizenship; active TS clearance with SCI access and CI polygraph; onsite Chantilly, VA; 8+ years web development; BS in CS/Software Engineering; SAFe and agile experience; 508 compliance; modern frontend and backend tech; cloud and DevSecOps.

Angular, React, .NET C#, Python, Node.js, JavaScript, TypeScript, HTML5, CSS3, Bootstrap, MySQL, PostgreSQL, Microsoft SQL, Elasticsearch, RabbitMQ, Redis, Docker, Kubernetes, AWS GovCloud, SC2S, C2S, DevSecOps

Save

Mark Applied

Hide

Staff Software Developer (TS/SCI)

Herndon, Virginia, United States

$92k-$195k/yr OnsiteFull Time

Maxar Intelligence: Providing satellite imagery and geospatial intelligence for global security.

5+ YOEUS citizen with TS/SCI clearance and CI poly; BS in CS/Software Eng; 5+ years backend software dev; Java/Python/JS; REST APIs with Spring Boot; Docker/Kubernetes/OpenShift; Jenkins/Git/Helm; Linux scripting; on-site in Herndon, VA.

Java, Python, JavaScript, Spring Boot, Docker, Kubernetes, OpenShift, Rancher, Jenkins, Git, Bitbucket, Gradle, Bash, Shell, OpenSearch, Elasticsearch, Keycloak, Fluent Bit, Cesium, PostgreSQL

1mo

Save

Mark Applied

Hide

1mo

Software Engineer

Chantilly, Virginia, United States

OnsiteFull Time

Bridge Core: Provides technical services and cybersecurity solutions to government agencies.

Java, Spring Boot, AWS backend; DevSecOps; Scrum; REST APIs; EC2, Git, Jenkins, CloudFormation; XML/JSON/YAML; team collaboration.

Java, Spring, AWS, Git, Jenkins, Rundeck, CloudFormation, REST API, Docker, Kubernetes, Python, Elasticsearch, Kibana, XML, JSON, YAML, IAM, Zero Trust, EC2

2mo

Save

Mark Applied

Hide

2mo

Lead Software Engineer - Remote

Minneapolis or Washington, D.C.

$113k-$193k/yr RemoteFull Time

UnitedHealth GroupNYSE: UNH: Sells health insurance and provides diversified healthcare services.

8+ YOE8+ years software engineering; 4+ years backend (Python/FastAPI or Node.js) and API development; 3+ years frontend (React/Angular with TypeScript); 3+ years cloud deployment (AWS/Azure/GCP); technical leadership on cross-functional initiatives; strong DevOps and security focus.

React, Angular, TypeScript, Python (FastAPI), Node.js, RESTful APIs, Asynchronous and event-driven workflows, Docker, Cloud (AWS/Azure/GCP), GitHub Actions, CI/CD, OAuth2, RBAC, Observability, AI/ML tooling

1mo

Save

Mark Applied

Hide

1mo

Tech Lead / Full Stack Engineer

Alexandria, Virginia, United States

RemoteFull Time

IntelliTech: Provides specialized software and data engineering services for government agencies.

8+ YOE8+ years software engineering; strong Python backend with FastAPI/Flask; React/TypeScript frontend; containerized architectures; cloud AWS; DoD/government programs; strong communication.

Python, FastAPI, Flask, React, TypeScript, MongoDB, Redis, Docker, Kubernetes, AWS, OpenAI API, Terraform, GitLab CI, GitHub Actions

1mo

Save

Mark Applied

Hide

1mo

Principal Software Engineer – Systems & Delivery (Mission Ground Systems)

Chantilly, Virginia, United States

OnsiteFull Time

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

8+ YOE8+ years software engineering; Rust, Python, or C/C++; backend systems and APIs; cloud (AWS); break down problems; improve reliability; AI-assisted tools.

Rust, Python, JavaScript/TypeScript, Bash, C/C++, React, AWS, Proxmox, Terraform, Ansible, Packer, GitLab CI/CD, Claude Code, Codex, Linux

2mo

Save

Mark Applied

Hide

2mo

Full Stack Software Engineer-1

College Park or United States

$180k-$216k/yr OnsiteFull Time

University of Maryland: Public research university providing higher education and academic research.

4+ YOE4–5+ years building full-stack apps; strong TypeScript and React; Python backend; Docker; cloud (AWS preferred); databases; CI/CD; open to OpenTelemetry and AI-related work.

TypeScript, React, Next.js, Remix, Angular, Python, Flask, FastAPI, Docker, AWS, Kubernetes, TailwindCSS, OpenTelemetry, SQL, NoSQL

1mo

Save

Mark Applied

Hide

1mo

Lead Software Engineer (Big Data / Platform Architect)

Sterling, Virginia, United States

OnsiteFull Time

Nightwing: Provides advanced cyber and intelligence solutions for national security.

6+ YOE4-8 years backend and frontend, 6-8 years AWS/Linux, 2-4 years AI/ML, strong Python/Java, Agile, SQL/NoSQL, cloud and search tech.

Python, Java, Angular, AWS, Linux, SQL, NoSQL, ElasticSearch, Solr, OpenSearch, ETL, Docker, Podman

Save

Mark Applied

Hide

Full Stack Software Developer

Annapolis Junction, Maryland, United States

$142k-$182k/yr OnsiteFull Time

Intelliforce: Provides engineering and technical solutions for the intelligence community.

8+ YOEClearance: Top Secret with Full Scope Polygraph; US Citizenship; 8 years of relevant experience with a Bachelor’s degree in a technical discipline; 4 additional years of experience may substitute for a degree; experience across UI/UX, middleware/APIs, backend, and DevOps; React/Vue/Angular; Python; Spring Boot; Postgres/SQLite; GitLab CI/CD.

React, Vue, Angular, Python, Spring Boot, PostgreSQL, SQLite, GitLab CI/CD

3mo

Save

Mark Applied

Hide

3mo

Software Engineer, DevSecOps

Ashburn, Virginia, United States

$130k-$180k/yr OnsiteFull Time

Impyrian: Provides engineering and IT services to federal agencies.

12+ YOE12+ years in software engineering with 3+ years in architecture/leadership; strong backend (Java/Python/Node.js) and frontend (React/Next.js); distributed systems; Docker/Kubernetes; AWS/GCP; CI/CD; DevSecOps; mentoring.

Docker, Kubernetes, AWS, GCP, Terraform, Pulumi, CloudFormation, GitHub Actions, GitLab, Junit, PyTest, Jest

1mo

Save

Mark Applied

Hide

1mo

Software Developer (Automation & Distributed Integration Systems)

Ashburn, Virginia, United States

$115k-$117k/yr HybridFull Time

Dobbs Defense Solutions: Providing IT and cybersecurity solutions for government missions.

5+ YOE5+ years software testing and test automation; strong C#/.NET Core; experience with backend services, APIs, distributed systems; CI/CD; test frameworks.

C#, NET Core, PowerShell, Python, HTTP/REST, TCP/IP, Sockets, xUnit, NUnit, MSTest, Git, CI/CD, Postman, Newman, RestAssured, Docker

2mo

Save

Mark Applied

Hide

2mo

Staff Engineer, AI Core

Palo Alto or Miami or Washington or Durham or Toronto

HybridFull Time

NubankNew York Stock Exchange: NU: Operates a digital financial platform offering banking and credit services.

Experience as a Staff Engineer or Senior Engineer shipping complex, large-scale consumer-facing mobile apps; strong backend and AI/ML data-pipeline experience; leadership and mentorship.

Flutter, AWS, Go, Java, Python, Clojure, Microservices, Event-driven

1mo

Save

Mark Applied

Hide

1mo

Software Developer, Journeyman

Herndon, Virginia, United States

$80k-$128k/yr OnsiteFull Time

Peraton: National security and mission-critical government technology services provider.

2+ YOESoftware development experience with hands-on coding, testing, and debugging; CI/CD pipelines; Git; web/backend frameworks; RMF/ATO considerations (desired).

Git, CI/CD, Containerization, Cloud services, PowerShell, Python

Save

Mark Applied

Hide

Full Stack Engineer (Cleared)

Huntsville or McLean

HybridFull Time

Exiger: AI-powered supply chain risk and compliance management software.

4+ YOEFull stack engineer with security clearance, strong frontend and backend skills, API and data pipeline experience, and ability to deliver in fast-paced environments.

React, Angular, Vue, Python, Java, Go, REST APIs, AWS, Azure, GCP, Terraform, CI/CD, DevOps

2mo

Save

Mark Applied

Hide

2mo

Senior Staff Software Engineer

Boston or Brooklyn or San Francisco or Washington

$225k-$265k/yr HybridFull Time

Altana: AI-powered network platform for global supply chain visibility.

12+ YOE12+ years backend or data-driven software; cloud deployments; lead engineers; strong communication; ownership of architecture and delivery.

Python, TypeScript, SQL, Docker, Git, Kubernetes, FastAPI, AWS, Azure, MLFlow, Temporal, Postgres, Databricks, OpenSearch

Save

Mark Applied

Hide

AI Platform and Applications Engineer

Washington, District of Columbia, United States

$103k-$185k/yr HybridFull Time

National Endowment for Democracy: Provides grants to strengthen democratic institutions and values worldwide.

8+ YOEBachelor's degree or equivalent; 8-10 years software/platform engineering; 2-3 years AI/LLM experience; strong Python/TypeScript; API and backend experience; AI-enabled apps with LLMs, embeddings, retrieval; RAG and agentic workflows; containerized deployments; Linux; observability; strong communication.

Python, TypeScript, Node.js, APIs, Linux, Git, Docker, CI/CD, observability, vector databases, embeddings, RAG, llama.cpp, Hugging Face

Save

Mark Applied

Hide

Field Engineer

Austin or El Segundo or Washington

OnsiteFull Time

Gallatin: Develops AI software for military logistics and supply chains.

Hybrid customer-facing engineering with frontend/backend skills; Python/JavaScript proficiency; strong CS/Math background; travel up to 50%; ability to obtain/maintain security clearance.

Python, JavaScript, Kubernetes, Helm, CI/CD, DevSecOps, MSS, Advana, Vantage, Envision

1mo

Save

Mark Applied

Hide

1mo

Staff Full Stack Engineer, GTM Systems

Austin or Chicago or Washington or New York

$214k-$245k/yr HybridFull Time

Upside: Personalized cashback rewards platform for everyday brick-and-mortar purchases.

8+ YOE8+ years of full-stack software engineering; React/TypeScript; backend/DB; AI tooling and LLMs; internal platforms; deployment platforms.

React, TypeScript, Next.js, Python, FastAPI, PostgreSQL, Supabase, Vercel, OpenAI API, GitHub Copilot

Save

Mark Applied

Hide

Senior Software Engineer (Auth & Identity)

Vienna or Remote

$100k-$155k/yr HybridFull Time

Clear Fracture: Automating data orchestration with an agentic AI engineering platform.

4+ YOEBackend-focused senior engineer for authorization and identity systems; 4+ years in auth, RBAC/ABAC, OAuth/OIDC/SAML; multi-tenant, distributed systems; cloud experience.

Python, Go, Java, OAuth 2.0, OIDC, SAML, AWS, Azure, GCP