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Python Software Developer Jobs in Herndon, VA, US

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

2,330 jobs- Herndon • 50 miles
2w
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Junior Palantir / Maven Product Engineer
Herndon, Virginia, United States
OnsiteFull Time
NetCentrics
NetCentrics: Secures government infrastructure through cybersecurity and IT services.
3+ YOEBachelor’s degree in CS/Engineering/Data Science or related field; 1–3 years software/data engineering; Python/Java/Go/TypeScript; cloud infra AWS/Azure/Kubernetes; secure environments; Secret clearance; TS/SCI eligibility.
Python, Java, Go, TypeScript, AWS, Azure, Kubernetes
2mo
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Senior Software Systems Engineer
Falls Church, Virginia, United States
$155k-$185k/yr OnsiteFull Time
Areté
Areté: Develops advanced sensing products and software for national defense.
9+ YOEActive Top Secret clearance; system design, integration, validation; Agile/CI/CD; IC experience; leadership; 9+ BS/7+ MS/4+ PhD.
Jenkins, Git, MBSE, Python, C++
2mo
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CNO Capability Developer (Linux) (Maryland, Fort Meade)
Fort Meade, Maryland, United States
OnsiteFull Time
Markesman Group
Markesman Group: Provides cybersecurity and intelligence solutions for government defense missions.
3+ YOE3+ years software development; 3+ years embedded HW/SW; vulnerability analysis; Linux; Git; TS/SCI with Polygraph; Bachelor's degree; proficiency in multiple languages.
C, C++, Golang, JavaScript, Python, Ruby, Bash, Git, Linux, Wireshark, tshark
1w
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Software Quality Assurance Lead
Arlington, Virginia, United States
$130k-$217k/yr OnsiteFull Time
American Systems
American Systems: Providing engineering and IT solutions to federal government agencies.
4+ YOE2+ MgmtSenior QA lead with 4+ years software engineering/testing, 2+ years leadership; strong testing methodologies; SDLC/DevOps; TS/SCI clearance eligibility.
Python, pytest, C++, GoogleTest, Selenium, CI/CD, DevOps
2mo
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Staff Engineer
Chantilly or Washington
HybridFull Time
History Factory
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
1w
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Cloud Developer (5239)
Washington, District of Columbia, United States
$99k-$167k/yr OnsiteFull Time
SMX
SMX: Providing cloud, cybersecurity, and mission-focused technology solutions to government.
3+ YOEActive Top Secret clearance; 3–5 years AWS cloud development; IaC (Terraform/Ansible); GitLab CI/CD; Bachelor's degree in a technical field.
Terraform, Ansible, AWS, GitLab, Python, Node.js, S3, EC2, VPC, IAM, RDS, Aurora PostgreSQL, Splunk, Docker, EKS
6d
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Senior QA Engineer
Richmond or Washington
$86k-$115k/yr RemoteFull Time
EAB
EAB: Providing research and technology solutions to educational institutions.
5+ YOE5+ years QA automation in web/mobile, with BDD frameworks, Python or Java, and CI/CD experience.
BDD frameworks, Cucumber, Behave, JMeter, Python, Java, CI/CD, Git
4w
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AI Engineer
Washington, District of Columbia, United States
HybridContract
Global Information Technology
Global Information Technology: Provides professional IT certification training and corporate consulting services.
3+ YOEPython, AI/ML frameworks; NLP, LangChain, cloud (Azure/GCP); APIs, data pipelines, monitoring; 3-5 years experience; Bachelor's in CS/AI.
Python, TensorFlow, PyTorch, LangChain, LangGraph, Azure, Google Cloud, Splunk, AppInsights
5d
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Automation Engineer
McLean, Virginia, United States
OnsiteFull Time
Merlin Group
Merlin Group: Accelerates federal adoption of innovative cybersecurity and technology solutions.
3+ YOE3+ years in CI/CD and infrastructure automation; experience with SOAR platforms; Python; familiarity with FedRAMP/SOC 2 evidence collection; IaC tools (Terraform/CloudFormation).
Python, Terraform, CloudFormation, Cortex XSOAR, Singularity Hyperautomation, Phantom
1mo
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Tech Lead / Full Stack Engineer
Alexandria, Virginia, United States
RemoteFull Time
IntelliTech
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
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Senior Full Stack Developer TS/SCI (or eligible)
Reston, Virginia, United States
OnsiteFull Time
Vibrint
Vibrint: Provides mission-critical systems and data analysis for national security.
5+ YOE5+ years full stack development; React/Angular/Vue; Node.js/Java/Python; RESTful APIs; databases; cloud; Git/CI/CD; TS/SCI eligibility.
React, Angular, Vue, Node.js, Java, Python, RESTful APIs, PostgreSQL, MySQL, MongoDB, AWS, Azure, GCP, Git, CI/CD, Docker, Kubernetes, GraphQL
1mo
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Windows CNO Developer
Arlington, Virginia, United States
$60k-$180k/yr OnsiteFull Time
M9 Solutions
M9 Solutions: Provides IT modernization and technology services to federal agencies.
7+ YOEActive TS/SCI clearance; 7–10+ years in low-level or systems programming on Windows; proficiency in C/C++, Python, and assembly; experience with reverse engineering tools; strong Windows internals knowledge.
IDA Pro, Ghidra, WinDbg, x64dbg, Visual Studio, Git, CMake, Python, C/C++, Assembly
1mo
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Control Systems / Embedded Software Engineer
Fredericksburg, Virginia, United States
OnsiteFull Time
HDT Global
HDT Global: Manufacturer of expeditionary infrastructure and equipment for defense sectors.
5+ YOEBS/MS/PhD in Robotics, Mechanical or Electrical engineering; 5+ years experience; U.S. Citizenship; ability to obtain Secret clearance; experience with C/C++, Python, ROS, Linux; motor control and embedded systems.
C++, Python, ROS, Git, Linux, Matlab, Octave, Altium, RS232, RS422, RS485, CAN, TCP/IP
1mo
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Lead- Full Stack Engineer
McLean, Virginia, United States
HybridFull Time
Tiger Analytics
Tiger Analytics: Provides AI and advanced analytics consulting for global enterprises.
10+ YOE10+ years in full stack development; hands-on Vue.js, Node.js, Python; GenAI/LLM integration; AWS cloud services (Lambda, S3, RDS, Fargate); REST/GraphQL APIs; Kafka; Docker; Kubernetes; RDBMS (Postgres/MySQL/Oracle)
Vue.js, Node.js, Python, GenAI/LLM, AWS (Lambda, S3, RDS, Fargate), REST APIs, GraphQL, Kafka, Docker, Kubernetes, PostgreSQL, MySQL, Oracle, CI/CD
1mo
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Full Stack Developer
Bethesda, Maryland, United States
OnsiteFull Time
Momentum
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
5h
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Tech Consulting - Full-Stack Java Developer - Senior - Multiple Locations (Los Angeles, CA, US, 90017-5418)
Los Angeles or New York City or Hoboken or San Francisco or San Jose or Seattle or Boston or Chicago or St. Louis or Philadelphia or Dallas or Houston or Irvine or San Diego or Portland or Denver or Minneapolis or Nashville or Phoenix or Pittsburgh or McLean or Atlanta or Charlotte or Detroit or Columbus or Cleveland or Akron or Miami
$103k-$188k/yr HybridFull Time
EY
EY: Global firm providing audit, tax, and professional consulting services.
3+ YOE3+ years software engineering; Bachelor's in CS or related field; proficient in at least one modern backend language; full-stack experience; REST APIs; React/Angular or similar; Git; cloud familiarity; travel up to 25%.
Python, Java, JavaScript, TypeScript, React, Angular, Git, Node.js, Spring, .NET, Docker, Kubernetes, REST APIs
1mo
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Full-Stack Developer
Reston or Chantilly
OnsiteFull Time
Dark Wolf Solutions
Dark Wolf Solutions: Provides cybersecurity and software development services to defense agencies.
5+ YOEFive years of experience in multiple modern programming languages and data stores; full-stack development; Java; JavaScript/Node.js; Elasticsearch; Vue.js; AWS or cloud experience.
Java, JavaScript, Node.js, Elasticsearch, Vue.js, AWS, Kubernetes, Docker, Gitlab CI/CD, Python
1mo
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Software Integration Engineer (Prime Contract)
Annapolis Junction, Maryland, United States
$200k-$230k/yr OnsiteFull Time
LufCo
LufCo: Provides specialized engineering and analytic services for defense missions.
12+ YOESenior Systems Integration Engineer with 12+ years in DoD environments; TS/SCI with Polygraph clearance; strong Linux, AWS, automation, and security expertise.
RHEL, AWS, Bash, Python, Ansible, DISA STIGs
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+ YOE5–7+ years in full stack development; proficient in Java/C#/C++; modern JavaScript (React); REST APIs; databases (SQL, MongoDB); cloud (AWS/Azure); DevOps; Agile/Scrum.
Java, C#, C++, React, HTML, CSS, SQL, MongoDB, Elasticsearch, Python, R, AWS, Azure, REST, API, IaC, DevOps, Terraform, Docker, Kubernetes
1w
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Data Engineer II
Annapolis, Maryland, United States
$110k/yr OnsiteFull Time
Crisis24
Crisis24: Integrated risk management and global crisis response solutions.
2+ YOEMaster's or Bachelor's in CS/DS/IT with 2+ years experience; strong Python, SQL, NoSQL, data modeling, testing, and data visualization.
Python, SQL, NoSQL, Data Visualization, Automated Testing, Big Data Technologies
1mo
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CNO Developer - Android and/or iOS
McLean, Virginia, United States
OnsiteFull Time
Leading Path Consulting
Leading Path Consulting: Provides technology and management consulting services to government and enterprise clients.
3+ YOE3+ years experience with Android or iOS; 3+ years experience with C and Python; TS/SCI with ability to get an FSP; full-time on site with sponsor in northern VA (Herndon or Arlington).
Android, iOS, C, Python, C#, Objective-C
3w
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RPA Developer (Robotic Process Automation, Associate)
Arlington, Virginia, United States
$122k-$131k/yr HybridFull Time
The MIL Corporation
The MIL Corporation: Provides IT, engineering, and financial services to federal agencies.
7+ YOE7+ years of relevant experience; knowledge of federal financial, accounting, procurement processes; 1-3 years in systems development and automated financial systems analysis; 1 year developing bots using RPA tools; strong communication and analytical skills.
UiPath, Automation Anywhere, BluePrism, Kofax, SQL, NoSQL, C#, Visual Basic, Python, Javascript, Java, .NET, REST APIs
3w
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RPA Developer (Robotic Process Automation, Associate)
Arlington, Virginia, United States
$122k-$131k/yr HybridFull Time
MIL Corporation
MIL Corporation: Provides IT, cybersecurity, and engineering services to federal agencies.
7+ YOE7+ years relevant experience; federal process knowledge; 1-3 years in systems development or automated financial analysis; 1 year developing RPA bots with UiPath/Automation Anywhere/Blue Prism/Kofax; strong analytical and communication skills.
UiPath, Automation Anywhere, Blue Prism, Kofax, SQL, NoSQL, C#, VB, Python, JavaScript, Java, .NET, REST APIs
2mo
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Senior Application Programmer/Developer (Secret Clearance and Full time On-site)
Washington, District of Columbia, United States
$135k-$145k/yr OnsiteFull Time
MicroHealth
MicroHealth: Provides specialized health IT services for federal government agencies.
5+ YOEBachelor's degree in CS/IT or related field; 5+ years full-stack development; strong C#, Python, JavaScript/TypeScript; experience with .NET, SQL databases, HL7; federal/government contracting experience a plus.
C#, Python, JavaScript, TypeScript, .NET, SQL Server, Oracle, MySQL, HTML5, CSS3, jQuery, REST, SOAP, WSDL, XML, AWS, Azure DevOps, Jira, Palantir Foundry, Palantir Gotham, Git, CI/CD, HL7, EHR, HIPAA, Crystal Reports
2w
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AI Engineer - AI+CryoET
Ashburn, Virginia, United States
OnsiteFull Time
Howard Hughes Medical Institute
Howard Hughes Medical Institute: Conducts biomedical research and funds scientific education and discovery.
3+ YOEExperience building AI/ML models for 3D imaging, especially cryoET or similar volumetric data; strong Python, PyTorch/JAX skills; collaboration across multidisciplinary teams.
Python, PyTorch, JAX, OpenMM
1mo
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Windows Cyber Tool Developer
Herndon, Virginia, United States
$150k-$250k/yr OnsiteFull Time
Mauck Research Group
Mauck Research Group: Develops offensive and defensive cyber tools for government clients.
Experience developing Windows security tools; BS in CS/Cybersecurity; TS/SCI clearance required.
C++, C#, Python
2w
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Platform Developer (Power Platform & ServiceNow)
Arlington, Virginia, United States
HybridFull Time
ASI Government
ASI Government: Provides acquisition and program management consulting to federal agencies.
3+ YOE3–5 years enterprise app development on low-code/no-code platforms; Power Apps, ServiceNow, SharePoint; REST APIs and Power Automate; eligible for Public Trust clearance.
Power Platform, ServiceNow, SharePoint, Power Automate, REST API, Python, JavaScript
2w
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AI Solution Engineer – Platform
Huntsville or Washington
$90k-$175k/yr HybridFull Time
Groundswell
Groundswell: Providing technology integration and digital modernization for federal agencies.
4+ YOE4+ years data/ML engineering, Python/SQL, cloud data platforms, DevOps, and TS/SCI clearance eligibility.
Python, SQL, Java, Scala, Go, PostgreSQL, Snowflake, Neo4j, Amazon Neptune, REST APIs, Docker, Kubernetes, Git, GitHub Actions, GitLab CI, Jenkins, Terraform, CloudFormation, Pulumi, D3.js, Plotly, Terraform, Pulumi, Kubernetes
2mo
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Machine Learning Engineer
Arlington or United States
$110k-$160k/yr OnsiteFull Time
Kitware
Kitware: Develops open-source software for scientific computing and data visualization.
Bachelor's or Master's in CS/ECen or related field; Python; deep learning libraries; ML with visual data; TS/SCI with US citizenship; travel; on-site work in NCR area.
Python, PyTorch, TensorFlow, C++
5d
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Senior AI/ML Engineer
New York or Santa Monica or Los Angeles or Palo Alto or Chicago or Washington D.C. or Boston or Colorado or Seattle or San Francisco or San Diego or Reston
OnsiteFull Time
Cooley
Cooley: Provides legal counsel to technology and life sciences companies.
5+ YOE5+ years in AI/ML; hands-on with Azure/AWS; Python; LLMs; data integration; LangChain or similar; cloud security and governance.
Python, Azure, AWS, LangChain, LangSmith, Pydantic AI, APIs, Data Ingestion, Data Lakes, Data Warehouses
2mo
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Web Developer (TS/SCI CI Poly)
Chantilly, Virginia, United States
OnsiteFull Time
Seamless Migration
Seamless Migration: Provides IT consulting and ServiceNow automation services for organizations.
4+ YOE4+ years web development experience; HTML, JavaScript, CSS; C#.NET and Bootstrap; AWS cloud services; strong problem solving and multitasking.
HTML, JavaScript, CSS, Bootstrap, C#.NET, SQL, Ruby on Rails, AWS, Python
2h
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Backend Developer (St. Louis, MO / Springfield, VA)
Alexandria or Springfield or St. Louis
$75k-$200k/yr OnsiteFull Time
geocgi
geocgi: Providing specialized geospatial information systems (GIS) and IT services.
3+ YOEBackend service/API development, REST APIs, cloud/on-prem deployments, containerization, and security for geospatial platforms.
Python, JavaScript, Node.js, Java, Docker, Kubernetes, ArcGIS Enterprise, REST APIs, CI/CD, Scripting, Infrastructure as Code
2mo
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Embedded Platform Engineer
Washington, District of Columbia, United States
RemoteFull Time
Valinor
Valinor: Develops specialized hardware and software for defense and government.
3+ YOE3+ years building and operating production systems; strong scripting in Python/TypeScript; CI/CD, containers, cloud platforms; AI tooling; security/compliance awareness; eligible for U.S. Secret clearance.
Python, TypeScript, GitHub Actions, Docker, Kubernetes, Azure, AWS, GCP, JFrog, CI/CD, AI tooling
1mo
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Senior Full Stack Developer (React)
New Hyde Park or Moline or Hartford or Framingham or West Palm Beach or Norcross or Chicago or Milwaukee or Baltimore or Piscataway or United States
$125k-$150k/yr RemoteFull Time
Parts Authority
Parts Authority: Distributes automotive and truck replacement parts to the aftermarket industry.
5+ YOE5+ years full-stack production experience; Python (FastAPI/Flask) and React (TypeScript); AI/ML integration; Kafka; PostgreSQL; Redis; strong communication.
Python, FastAPI, SQLAlchemy, Pydantic, React, TypeScript, Tailwind, Redis, PostgreSQL, Kafka, Databricks, MLflow, Docker, Kubernetes, GitHub Actions, Terraform, ODBC, Data Queues, WebSockets, FastAPI, RH other
1mo
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Missionforce - Associate Forward Deployed Engineer (FDE), Public Sector
Washington or Herndon
$96k-$177k/yr HybridFull Time
Salesforce
SalesforceNYSE: CRM: Provides cloud-based customer relationship management and business software.
3+ YOE3-7 years software engineering or systems integration; CS background; proficiency in JavaScript/Java/Python/Apex; hands-on delivery of production solutions; AI/LLM experience; data integration/APIs; secure environment experience; travel 25-50%; US citizenship with security clearance.
JavaScript, Java, Python, Apex, Salesforce Platform, Data Cloud, LLMs, AI/ML
1mo
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UX Engineer / Front-End Engineer – TAK (ATAK/WinTAK)
Chantilly, Virginia, United States
OnsiteFull Time
Eiden Systems Consulting
Eiden Systems Consulting: Delivers IT and engineering solutions for government agencies.
3+ YOE3-5 years UX/UI development; experience with ATAK/WinTAK/TAK Server; strong Java and front-end skills; API/data stream integration; TS clearance (TS/SCI preferred).
Java, React, Angular, Vue, Kotlin, Python, GitLab, ATAK, WinTAK, TAK Server
6d
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Summer Intern Software Engineering, CloudOps
Washington, District of Columbia, United States
OnsiteFull Time
The Washington Post
The Washington Post: Provides daily newspaper publishing and digital news reporting services.
0+ YOEPursuing CS/SE with knowledge of data structures, algorithms; experience with Java, Python, JavaScript/TypeScript, Go, Ruby, or SQL; familiar with Git; cloud concepts (AWS, Azure, or GCP); containerization/CI/CD; databases; strong problem solving; collaboration.
Docker, AWS CDK, CloudFormation, Datadog, GitHub, Jenkins, CodePipelines, ECS, Load Balancers
1w
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AI Platform and Applications Engineer
Washington, District of Columbia, United States
$103k-$185k/yr HybridFull Time
National Endowment for Democracy
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
3d
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Forward-Deployed Engineer
Washington, District of Columbia, United States
$185k-$260k/yr RemoteFull Time
Legion Intelligence: Secure generative AI platform for defense and enterprise workflows.
4+ YOE4+ years in forward deployed/solution engineering; full-stack; Python/JS/TS; enterprise integrations; UI with Node/Next/React; autonomous; strong communicator; US citizens/Green Card holders; TS/SCI clearance.
Python, JavaScript, TypeScript, Node.js, Next.js, React, Palantir Foundry, Databricks, ServiceNow, Microsoft O365, Atlassian, n8n
1mo
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DevOps Engineer
McLean or Chantilly
OnsiteFull Time
eDesign House
eDesign House: Provides secure software and cloud solutions for government agencies.
3+ YOEActive TS/SCI clearance with CI Poly; U.S. Citizenship; 3+ years in DevOps/SRE/Cloud; Python/Bash; Kubernetes; cloud infra; secure environments.
Terraform, Ansible, Docker, Kubernetes, Jenkins, GitLab CI, CircleCI, CloudFormation, Prometheus, Grafana, ELK Stack, AWS, Azure, GCP

HiringCafe market data

Python Software Developer Jobs market signals in Herndon, 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
46% new in 30d
Salary visibility
48% show pay

Companies appearing in this market

Dark Wolf SolutionsEABGroundswellLeading Path ConsultingM9 SolutionsNetCentricsParts AuthoritySalesforce

Work location mix in visible results

Onsite: 30Hybrid: 12Remote: 8