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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Test Engineer - **Company:** Markon Solutions - **Location:** Chantilly, VA, United States - **Experience:** Expert - **Salary:** $160,000.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Java (Programming Language), Agile Methodology, Application Testing, Confluence, JIRA, Automation of Tests, Bug Tracking Systems, Software Bug Management, Code Coverage, Code Review, Software Debugging, Java Platform Enterprise Edition (J2EE), Github, Home Automation, Systems Development Life Cycle, Regression Testing, Selenium, Software Engineering, Software Systems, System Testing, Test Case, Web Applications, Web Testing, Enterprise Software Applications, Integration Tests, Selenium Webdriver - **Published:** August 19, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-tester-chantilly-va--b44b8cb2-b8b6-4825-a45f-3c6df10a8c67 ## About the Role * Active TS/SCI clearance with Full Scope Polygraph required. * Bachelor's degree and 6+ years of relevant software testing, quality assurance, or software development experience. * Experience developing and executing software test plans and test cases. * Experience with GitHub, Jira, and Confluence. * Experience testing applications developed using Java/J2EE. * Experience developing automated tests using Selenium WebDriver or comparable automation tools. * Experience testing web-based enterprise applications. * Experience performing manual and automated software testing. * Strong understanding of software development lifecycle and quality assurance practices. * Strong analytical, troubleshooting, documentation, and communication skills. Desired: * Experience building and maintaining automated testing frameworks. * Experience working within SAFe or Agile development teams. * ISTQB Certified Tester or comparable software testing certification., Agile Programming Methodologies, Analysis Skills, Atlassian JIRA, Automation, Bug Tracking/Defect Management, Code Reviews, Communication Skills, Community Support, Consulting, Debugging Skills, Documentation, Enterprise Applications, Establish Priorities, Federal Government, Full Scope Polygraph, Functional Testing, GitHub, Hardware Evaluation, Home Automation, ISTQB Foundation, Identify Issues, Integration Testing, Intelligence Community, Internet Application, Java, Java Platform Enterprise Edition (Java EE/J2EE), Legal, Network Debugging, Product Lifecycle, Project/Program Management, Quality Assurance Methodology, Quality Assurance Software, Quality Control Methodology, Quality Management, Quality Metrics, Regression Testing, Root Cause Analysis, Selenium, Sensitive Compartmented Information (SCI), Software Development, Software Development Lifecycle (SDLC), Software Engineering, Software Evaluation, Software Testing, System Validation, Test Automation, Test Case, Test Harness, Test Plan/Schedule, Testing, Top Secret Clearance, Web Testing ## Description Markon is seeking a Senior Software Test Engineer to support an Intelligence Community customer by developing and executing quality assurance methodologies for enterprise software applications. This role performs manual and automated testing to identify defects, validate system functionality, and ensure software solutions meet established requirements and quality standards. The Senior Software Test Engineer will collaborate with developers and Agile teams throughout the software development lifecycle to improve application quality, reliability, and performance., * Develop and execute software test plans, test cases, and quality control methodologies for enterprise applications. * Perform functional, regression, integration, and automated testing to identify defects and determine root causes. * Test web-based applications and validate functionality against system and user requirements. * Develop and maintain automated test solutions and reusable testing frameworks. * Evaluate software, hardware, and associated documentation for quality and compliance. * Document, track, and communicate defects and test results using GitHub, Jira, and Confluence. * Participate in formal and informal software reviews throughout the development lifecycle. * Collaborate with developers and Agile teams to troubleshoot issues, improve test coverage, and deliver production-ready software. ## Related Videos - [Proactive monitoring and smoke testing in your production environment](https://www.wearedevelopers.com/videos/139-proactive-monitoring-and-smoke-testing-in-your-production-environment) - [Testing .NET applications a Tool box for every developer](https://www.wearedevelopers.com/videos/704-testing-net-applications-a-tool-box-for-every-developer) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Old tools, new tricks](https://www.wearedevelopers.com/videos/1916-old-tools-new-tricks) - [Bringing AI Model Testing and Prompt Management to Your Codebase with GitHub Models](https://www.wearedevelopers.com/videos/1536-bringing-ai-model-testing-and-prompt-management-to-your-codebase-with-github-models) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [What is a Test Plan: Guide to Test Planning](https://www.wearedevelopers.com/magazine/191-what-is-a-test-plan-guide-to-test-planning) - [How to create a test plan for software testing](https://www.wearedevelopers.com/magazine/56-how-to-create-a-test-plan-for-software-testing) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)