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Test Engineer with Security Clearance

Mission Services LLC (MSI) Winchester, VA
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Position Overview
Support mission-critical operations by designing, developing, and executing automated testing solutions for secure continuous operations systems. You will play a pivotal role in validating and verifying functionality, performance, and security of both IT and operational technology (OT) components under strict compliance standards.
Key Responsibilities
Develop comprehensive test plans, automated test scripts, and test cases to validate system requirements across SCOR platforms.
Conduct functional, integration, regression, performance, and security testing-including vulnerability and compliance checks.
Integrate automated tests within CI/CD pipelines; support DevOps workflows. Hire for Belonging+1Jobed.ai+1
Log, track, and manage defects; collaborate with stakeholders to drive timely resolution. Maintain and enhance automation frameworks in tools like Selenium, TestNG, JMeter, Appium, Postman, or Robot Framework.
Prepare reports, dashboards, and documentation aligned with FBI governance and compliance standards.
Participate in User Acceptance Testing (UAT) and feedback coordination. Required Qualifications
Bachelor's degree in Computer Science, Engineering, or related technical field-or equivalent experience. Minimum 5-8 years of experience in automation testing within complex IT/OT environments.
Expertise in scripting languages such as Java, Python, JavaScript or C#.
Strong knowledge of databases (SQL, Oracle) and query-based validation.
Hands-on with CI/CD tools (Jenkins, GitLab CI), DevOps processes, and code versioning (Git, SVN). Jobed.ai
Thorough understanding of Agile methodologies (Scrum, SAFe).
Active U.S. Top Secret clearance with SCI eligibility (or ability to obtain).
Preferred Skills
Prior experience testing within government or law enforcement environments.
Familiarity with cloud testing platforms (AWS GovCloud, Azure Government).
Experience in cybersecurity testing, vulnerability assessment, or penetration testing.
Certifications such as ISTQB, CSTE, or technical certifications related to tools or CI/CD practices.


















Date Posted September 18, 2025
Located In Winchester, VA
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Mission Services LLC (MSI)