📣 HiringCafe is hiring a Founding Growth Hacker! Learn More · Apply here
Limited-index browse page
Python Test Software Developer Jobs in Mantua, VA, US
160+ python test software developer jobs from 94 companies hiring in Mantua, VA, US.
4w
Save
Mark Applied
Hide
Principal Engineer - Agentic AI Applications
Washington, District of Columbia, United States
$168k-$230k/yr HybridFull Time
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
UI/UX Front-End Development Engineer
Bethesda, Maryland, United States
$125k-$220k/yr HybridFull Time
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
2mo
Save
Mark Applied
Hide
Sr. Web Application Developer #1703183
Chantilly, Virginia, United States
$121k-$135k/yr OnsiteFull Time
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
1w
Save
Mark Applied
Hide
Data Engineer II
Annapolis, Maryland, United States
$110k/yr OnsiteFull Time
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
2w
Save
Mark Applied
Hide
Senior Appian QA Automation Engineer
McLean, Virginia, United States
$137k-$165k/yr RemoteFull Time
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
1mo
Save
Mark Applied
Hide
Jr. Data Science Engineer
Rockville, Maryland, United States
$80k-$90k/yr RemoteFull Time
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
4w
Save
Mark Applied
Hide
Senior Application Developer (Java/Angular)
Ashburn, Virginia, United States
HybridFull Time
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
2mo
Save
Mark Applied
Hide
Staff Engineer, DevOps (R4666)
San Diego or Dallas or Boston or Washington or San Francisco or United States
$150k-$220k/yr OnsiteFull Time
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
3mo
Save
Mark Applied
Hide
Frontend Lead Engineer
Richmond or Arlington
OnsiteFull Time
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
1mo
Save
Mark Applied
Hide
AI Full-Stack Engineer
Tysons, Virginia, United States
$160k/yr OnsiteFull Time
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
1mo
Save
Mark Applied
Hide
SIMULATION & DIAGNOSTICS DEVELOPER
Greenbelt, Maryland, United States
$170k-$190k/yr HybridFull Time
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
1w
Save
Mark Applied
Hide
Computer Scientists
Annapolis Junction or Fort Meade
OnsiteFull Time
3+ YOEMid to senior level software/firmware design, development, test; TS/SCI with poly required.
Python, C, C++
1mo
Save
Mark Applied
Hide
Quality Assurance Engineer (Sweep)
Arlington, Virginia, United States
HybridFull Time
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
2w
Save
Mark Applied
Hide
Automated Tester
Fairfax, Virginia, United States
OnsiteFull Time
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#
3mo
Save
Mark Applied
Hide
Lead Systems Engineer - Underwriting (Remote)
Baltimore, Maryland, United States
$113k-$225k/yr RemoteFull Time
8+ YOE8 years of software systems experience; Bachelor's in IT/CS or 4 additional years of relevant work experience; ITIL Foundations v3; experience with underwriting rating systems; strong data analysis, testing, and SDLC/Agile knowledge.
JavaScript, XML, .NET Framework, Python, Power BI, SQL, Oracle, MongoDB, MySQL, VBA, MS Access
2mo
Save
Mark Applied
Hide
Baseband Reverse Engineer (In office 5x/week)
Sterling, Virginia, United States
OnsiteFull Time
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
1mo
Save
Mark Applied
Hide
Audio Visual Programmer (Associate, Mid-Level or Senior)
Herndon or United States
$93k-$192k/yr OnsiteFull Time
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
1mo
Save
Mark Applied
Hide
Automation Tester
Columbia, Maryland, United States
$92k-$110k/yr HybridMultiple Commitments Available
7+ YOE7+ years in automation testing with Selenium/TestNG/JUnit/Cypress; API, performance, and security testing; Agile; CI/CD; SDLC knowledge.
Selenium, TestNG, JUnit, Cypress, Postman, RestAssured, SoapUI, Jenkins, GitLab CI/CD, Azure DevOps, Python, Java, JavaScript, C#, JUnit, LoadRunner, JMeter
2d
Save
Mark Applied
Hide
Testing Lead/Architect
Ashburn, Virginia, United States
HybridFull Time
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
1w
Save
Mark Applied
Hide
Senior Data Analyst
Quantico, Virginia, United States
OnsiteFull Time
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
HiringCafe market data
Python Test Software Developer Jobs market signals in Mantua, 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
160+
Hiring companies
94
Fresh sample
38% new in 30d
Salary visibility
62% show pay
Companies appearing in this market
iCallidusAbsolute Business Solutions CorpArtera TechnologiesAxle InformaticsBoeingCareFirst BlueCross BlueShieldCrisis24Data Intelligence
Work location mix in visible results
Onsite: 10Hybrid: 8Remote: 3