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# Sr. Manual Test Engineer TS/SCI Polygraph

- **Company:** Leidos, Inc.
- **Location:** Annapolis Junction, MD, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Software Applications, Systems Engineering, Software Quality, Scrum Methodology, Regression Testing, Software Configuration Management, Software Engineering, System Testing, Test Data, Test Execution Engine, System-level Testing
- **Published:** August 6, 2026
- **Apply:** https://us.experteer.com/career/view-jobs/sr-manual-test-engineer-ts-sci-polygraph-annapolis-junction-md-usa-58813496

## About the Role

Collaborate system, and end-to-end testing of software applications * Develop, write, and execute system- and integration-level test procedures and reports * Evaluate software changes and verify corrective actions from development and testing activities * Utilize basic system administration skills and work with lab hardware * Create test data, define acceptance criteria, and design test methodologies for subsystems and modules * Plan and oversee regression testing using comprehensive operational test scenarios * Engage with customer points of contact for formal test milestones and witnessing * Understand software components and interfaces to ensure comprehensive coverage * Contribute to test plans and procedure documentation within the broader test organization * Support software configuration management related to test artifacts and environments * Collaborate with Software Development, Systems Engineering, Integration, Deployment, and Sustainment teams Tasks * BS degree with 18-20 years
of relevant experience, or MS with 15-20 years, or PhD with 13-16 years * Experience participating in formal test events (Acceptance, User Acceptance, Final Release, Maintenance Release, etc.) and developing/executing formal system tests aligned with customer requirements * Experience working with physical equipment in a test lab and collecting/analyzing/presenting test results; ability to execute manual test procedures with elevated privileges * Experience documenting test results for corrective actions, reporting, and audits; strong leadership and communication skills for collaboration with management and technical staff * Clearance: TS/SCI with Polygraph Key requirements * Paid Time Off * 11 paid Holidays * 401K with 6% company match * Flexible Schedules * Discounted Stock Purchase Plans * Technical Upskilling, Education and Training Support

## Description

Experteer Overview In this role you will perform manual, component-to-system testing for a fast-paced, mission-critical program. You will write and execute system-level tests and evaluate software changes, contributing to defect verification across development and operations. You'll join a dedicated manual test team within a broader test organization that maintains a complex testing framework and lab hardware. You will coordinate with engineers, stakeholders, and cross-functional teams to plan tests and ensure thorough coverage. This is a hands-on role with impact on software quality and delivery for national security missions. Compensation / Benefits * Coordinate testing priorities with engineers and customer stakeholders and set test event schedules * Collaborate with System-Level Test Teams and Scrum Masters to plan test environment prep, test procedures, and test execution * Identify cross-team dependencies and manage program release testing events * Perform manual component, integration, system, and end-to-end testing of software applications * Develop, write, and execute system- and integration-level test procedures and reports * Evaluate software changes and verify corrective actions from development and testing activities * Utilize basic system administration skills and work with lab hardware * Create test data, define acceptance criteria, and design test methodologies for subsystems and modules * Plan and oversee regression testing using comprehensive operational test scenarios * Engage with customer points of contact for formal test milestones and witnessing * Understand software components and interfaces to ensure comprehensive coverage * Contribute to test plans and procedure documentation within the broader test organization * Support software configuration management related to test artifacts and environments * Collaborate with Software Development, Systems Engineering, Integration, Deployment, and Sustainment teams Tasks * BS degree with 18-20 years of relevant experience, or MS with 15-20 years, or PhD with 13-16 years * Experience participating in formal test events (Acceptance, User Acceptance, Final Release, Maintenance Release, etc.) and developing/executing formal system tests aligned with customer requirements * Experience working with physical equipment in a test lab and collecting/analyzing/presenting test results; ability to execute manual test procedures with elevated privileges * Experience documenting test results for corrective actions, reporting, and audits; strong leadership and communication skills for collaboration with management and technical staff * Clearance: TS/SCI with Polygraph Key requirements * Paid Time Off * 11 paid Holidays * 401K with 6% company match * Flexible Schedules * Discounted Stock Purchase Plans * Technical Upskilling, Education and Training Support


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