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Python Test Software Developer Jobs in Stafford, VA, US

100+ python test software developer jobs from 64 companies hiring in Stafford, VA, US.

All jobs in Stafford, VA, USPython Test Software Developer Jobs in United States
Nearby:Aquia Harbour·Fredericksburg·Cherry Hill·Montclair·Dale City·Washington·Triangle·Lake Ridge·Manassas·Linton Hall·Alexandria·Burke·Arlington·Centreville·Waldorf·Saint Charles·Springfield·St. Charles·Falmouth
106 jobs- Stafford • 50 miles
1w
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Principal Integration & Test Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Trident Systems
Trident Systems: Develops high-performance electronics for space and defense.
9+ YOEBachelor's in EE/CE/CS or related field; 9+ years in embedded systems integration and test; strong hardware/software debugging; experience with avionics or aerospace hardware.
C/C++, Python, FPGA, Lab instrumentation
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2mo
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Perception Engineer
Clarksburg, Maryland, United States
$130k-$180k/yr OnsiteFull Time
Forterra
Forterra: Develops autonomous driving systems for defense and industrial applications.
2+ YOEDevelop and maintain C++/Python perception software; collaborate across autonomy teams; travel to test sites.
C++, Python, Linux, Docker, Git, CI/CD, Bash, Automation
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3w
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Senior Software Development Engineer L4
Bowie or Bowie Government Office
$85k-$170k/yr OnsiteFull Time
Inovalon
Inovalon: Cloud platform for data-driven healthcare analytics and insights.
5+ YOE5+ years software development; strong C# and MS SQL; testing/architecture experience; AWS interest; independent contributor; strong collaboration.
C#, MS SQL Server, Python, Lua, AWS
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1mo
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Software Tester / QA Engineer (Web & API Testing)
Chantilly, Virginia, United States
$160k-$190k/yr OnsiteFull Time
Falls Technology
Falls Technology: Provides secure software development and systems engineering services.
3+ YOE3+ years in software testing; strong web and REST API testing; API tools; test automation; JavaScript/Python/Java; Agile/Scrum.
Postman, Swagger, Cypress, Git, JavaScript, Python, Java, JSON
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2mo
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Software Tester
Chantilly, Virginia, United States
OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and mission-critical services globally.
8+ YOEActive TS/SCI with a polygraph; associate or bachelor in CS/cyber security/engineering/mathematics; 8 years of experience; automated test scripting in Python/Bash/Java/JavaScript; functional and regression testing; UNIX/Windows; JIRA; customer and stakeholder interaction.
Python, Bash, Java, JavaScript, Selenium, JIRA, Unix, Windows
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2w
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Cleared Embedded Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Yellow Duck Technologies
Yellow Duck Technologies: Engineering mission-critical software and systems for the intelligence community.
Embedded software design, development, testing; TS/SCI with Full Scope Polygraph required.
C/C++, Python, RTOS, VxWorks, uC/OS, Windows, Linux
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1mo
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Lead AI Full Stack Software Engineer – Investments Technology
Washington, District of Columbia, United States
$145k-$309k/yr HybridFull Time
T. Rowe Price
T. Rowe PriceNASDAQ: TROW: Provides global investment management and retirement planning services.
8+ YOE8+ years in OO languages; cloud-native AWS/Azure; leadership; strong problem-solving; stakeholder communication; automated testing and CD.
AWS, Azure, Docker, Kubernetes, Java, Python, JavaScript, LLM, agent frameworks, Retrieval augmented generation, OpenAI Codex, Bedrock, Kiro, MCP servers
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1mo
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Software QA Lead
Arlington, Virginia, United States
$145k-$185k/yr OnsiteFull Time
Sabre Systems
Sabre Systems: Provides engineering and IT solutions for defense customers.
4+ YOE2+ MgmtBachelor’s degree; 4+ years software engineering; 2+ years leadership in QA; diverse testing methodologies; SDLC knowledge; test automation; CI/CD; strong communication.
Python, pytest, C++, GoogleTest, Selenium, CI/CD, DevOps tools
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1mo
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Modernization Engineer (Senior)
Manassas, Virginia, United States
OnsiteFull Time
Spear AI
Spear AI: Develops AI software and sensors for maritime defense operations.
Senior software engineer with Rust, C/C++, Docker/Kubernetes, Kafka/Redpanda, Terraform/Pulumi, Python; strong testing, linting, and CI/CD experience.
Rust, C/C++, Docker, Kubernetes, Kafka/Redpanda, Terraform, Pulumi, Python, GitHub Actions, Protobuf
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2w
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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
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4w
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Principal Engineer - Agentic AI Applications
Washington, District of Columbia, United States
$168k-$230k/yr HybridFull Time
Serko
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
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1mo
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UI/UX Front-End Development Engineer
Bethesda, Maryland, United States
$125k-$220k/yr HybridFull Time
Absolute Business Solutions Corp
Absolute Business Solutions Corp: Provides technology and intelligence services to the US government.
4+ YOEDevelop web apps using ReactJS and Python; implement UIs, perform testing; work in Agile; TS/SCI clearance required.
ReactJS, Python, HTML, CSS, JavaScript, Docker, Podman, HTTP, JSON, Elasticsearch, NoSQL
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2mo
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Sr. Web Application Developer #1703183
Chantilly, Virginia, United States
$121k-$135k/yr OnsiteFull Time
Network Designs, Inc.
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
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2w
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Senior Appian QA Automation Engineer
McLean, Virginia, United States
$137k-$165k/yr RemoteFull Time
Groundswell
Groundswell: Providing technology integration and digital modernization for federal agencies.
5+ YOE5+ years QA automation; Appian or low-code testing experience; Python automation; CI/CD with GitLab/Jenkins/Azure DevOps; API and performance testing; multi-project QA leadership; able to obtain Secret clearance; remote with East Coast hours.
Python, GitLab, Jenkins, Azure DevOps, Locust, JMeter, Selenium, Playwright, Appian
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1mo
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Jr. Data Science Engineer
Rockville, Maryland, United States
$80k-$90k/yr RemoteFull Time
Axle Informatics
Axle Informatics: Provides bioscience and IT solutions for biomedical research.
0+ YOEBachelor’s degree (or currently pursuing) in CS, data science, bioinformatics, statistics, engineering, or related field; experience or coursework in JavaScript/TypeScript and/or Python; familiarity with full-stack concepts; Node.js and Angular; RESTful APIs; Git; Agile/SCRUM; basic testing/debugging.
Node.js, Angular, JavaScript, TypeScript, Python, REST, Git, Agile, Testing frameworks
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4w
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Senior Application Developer (Java/Angular)
Ashburn, Virginia, United States
HybridFull Time
Dev Technology Group
Dev Technology Group: Provides information technology services to federal government agencies.
7+ YOEBachelor’s degree and 7+ years in Java applications with Spring, Agile, Jira; Oracle/PostgreSQL; unit tests; strong communication; hybrid Ashburn onsite.
Java, Angular, Spring, Spring Boot, AWS, Jira, Git, Bamboo, Jenkins, SonarQube, Docker, Kubernetes, Hibernate, MyBatis, JMS, Python, Kafka, Linux
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2mo
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Staff Engineer, DevOps (R4666)
San Diego or Dallas or Boston or Washington or San Francisco or United States
$150k-$220k/yr OnsiteFull Time
Shield AI
Shield AI: Develops autonomous AI-powered aircraft and pilot software for defense.
7+ YOELead DevOps across CI/CD, automation; 7+ years experience; strong CI/CD tools; containerization; scripting; test integration; reliability at scale.
Azure DevOps, Jenkins, GitHub Actions, Docker, Kubernetes, Python, Bash, PowerShell, Terraform, Ansible, Grafana, Prometheus
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3mo
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Frontend Lead Engineer
Richmond or Arlington
OnsiteFull Time
Koalafi
Koalafi: Provides lease-to-own and loan financing for non-prime consumers.
6+ YOE6+ years of front-end experience with modern web technologies (React, Vue, Angular); four-year CS/engineering degree; experience with REST APIs, AWS, and testing; in-person location requirement to Richmond, VA or Arlington, VA.
React, Vue, Angular, Golang, Java, Node, Python, Cypress, Playwright, AWS, Kubernetes, Postgres
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3mo
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Eng Sr Prin II - Test
Annapolis Junction, Maryland, United States
$150k-$254k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides global defense, aerospace, and information security solutions.
8+ YOEMust have Java experience; strong JS/web services; cryptography basics; Windows/Linux proficiency; able to work independently and in Agile teams.
Java, Python, C/C++, SQL, SOAP, WSDL, PERL, PowerShell, VBS, Eclipse, Postgres, Oracle, Jenkins, Web Services, JSON, HTML, XML, XSLT, cryptography, Windows, Linux, JEE, Tomcat, WebLogic, JBoss, Selenium, BDD, SAFe
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1mo
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AI Full-Stack Engineer
Tysons, Virginia, United States
$160k/yr OnsiteFull Time
LMI
LMI: Provides technology and management consulting services to federal agencies.
Experience delivering modern full-stack apps; backend/API design; frontend with React/Next.js; AI/LLM integration; cloud deployments; CI/CD and testing.
React, Next.js, Node.js, Python, Java, APIs, AWS, Azure, GCP, Docker, Kubernetes, LangChain, LlamaIndex, Semantic Kernel, OpenAI Codex, Anthropic Claude Code
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1mo
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SIMULATION & DIAGNOSTICS DEVELOPER
Greenbelt, Maryland, United States
$170k-$190k/yr HybridFull Time
MCSG Technologies
MCSG Technologies: Provides information technology, engineering, and healthcare support services.
12+ YOEUS citizenship; extensive software development lifecycle experience; embedded software; TCP/UDP networking; DTN protocols; Linux/VxWorks RTOS; C/C++/Java; testing and documentation; familiarity with Git/JIRA/GitHub.
C, C++, Java, XML, JSON, Linux, RTOS (VxWorks), Git, JIRA, GitHub, Python, TCP, UDP, DTN, NASA standards
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1mo
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Quality Assurance Engineer (Sweep)
Arlington, Virginia, United States
HybridFull Time
IntraFi
IntraFi: Provides deposit placement and liquidity services to financial institutions.
5+ YOE5+ years in software QA within Agile teams; strong automation experience; Java, JavaScript, Python; Playwright/Selenium; API testing; SQL/PLSQL; AWS; CI/CD; QA leadership and offshore collaboration.
Playwright, Selenium, Geb, Groovy, Cucumber, JavaScript, WebDriverIO, Postman, REST-assured, Java, Python, Angular, PL/SQL, Oracle, Jenkins, Splunk, JIRA, Bitbucket, Confluence, AWS
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2w
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Automated Tester
Fairfax, Virginia, United States
OnsiteFull Time
Prometheus Federal Services
Prometheus Federal Services: Providing strategic consulting and program management for federal health agencies.
5+ YOE5+ years software testing, 2+ years automated testing; Selenium/Cypress/Playwright; QA/SDLC/Agile; CI/CD; Git; languages: JavaScript/Python/Java/C#
Selenium, Cypress, Playwright, Azure DevOps, Git, GitHub Actions, Jenkins, CI/CD, JavaScript, Python, Java, C#
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2mo
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Baseband Reverse Engineer (In office 5x/week)
Sterling, Virginia, United States
OnsiteFull Time
SIXGEN
SIXGEN: Provides cybersecurity assessments and mission-ready software for defense agencies.
Citizen with current Top Secret clearance; reverse engineering of RF/SDR; experience with SDR software and embedded systems; knowledge of RF protocols and testing; in-office work in Sterling, VA.
C, Python, C++, Git, Embedded Operating Systems, Ghidra, IDA Pro, GNU Radio, RFID, WiFi, Cellular, Bluetooth
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1mo
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Audio Visual Programmer (Associate, Mid-Level or Senior)
Herndon or United States
$93k-$192k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
2+ YOEActive TS/SCI w/ Counterintelligence Polygraph; Crestron programming; C/C++, Java, JavaScript, Python, Perl, Visual Basic; AV system integration and testing; network programming.
Crestron, C++, Java, JavaScript, Perl, Python, Visual Basic, C#, HTML
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2d
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Testing Lead/Architect
Ashburn, Virginia, United States
HybridFull Time
Niyam IT
Niyam IT: IT services and data analytics for government agencies.
10+ YOE4+ MgmtUS citizen; bachelor’s in CS/Engineering; 10+ years IT experience; expert in automation frameworks; Kubernetes, Helm, Podman; AWS; CI/CD; Python/Node.js/Go; strong communication; onsite 4 days/week in Ashburn, VA.
Kubernetes, Helm, Podman, AWS, Python, Node.js, Go, Playwright, Selenium
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Senior Data Analyst
Quantico, Virginia, United States
OnsiteFull Time
Data Intelligence
Data Intelligence: Provides engineering and cybersecurity solutions for federal government clients.
10+ YOEMaster’s degree in data science, computer science, engineering, mathematics, or related field; 10+ years in data science or advanced analytics; experience with software integration/testing; strong Python and R; data science, data mining, statistics, and graph algorithms; SQL/NoSQL; API development; ETL pipelines; data manipulation and visualization...
Python, R, SQL, NoSQL, APIs, ETL, Jupyter Notebook, Pandas, NumPy, Requests, Data Visualization Tools, Spreadsheet software
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HiringCafe market data

Python Test Software Developer Jobs market signals in Stafford, 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
100+
Hiring companies
64
Fresh sample
34% new in 30d
Salary visibility
59% show pay

Companies appearing in this market

Falls TechnologySpear AIAbsolute Business Solutions CorpAmerican SystemsAxle InformaticsBAE SystemsBoeingData Intelligence

Work location mix in visible results

Onsite: 20Hybrid: 7Remote: 2

Related browse hubs

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