Senior Automated Test Engineer

Help ensure Intelligence Community analysts and mission operators have reliable, secure software they can count on when critical decisions need to be made. Leidos is seeking a Senior Test Automation Engineer to help deliver mission-essential software capabilities that enable intelligence professionals to access critical information, analyze data, and support time-sensitive national security operations. When applications fail, data is inaccurate, or critical services are unavailable, mission execution can be disrupted.

Your work will help prevent those failures by identifying defects early, validating critical system functionality, and ensuring new capabilities are ready when our customer needs them most. As a key member of a high-performing Agile team on the Chinook program, you'll use Playwright to build robust automated tests that validate mission-critical user workflows and Bruno and/or Postman to verify the accuracy, reliability, and security of APIs that connect essential systems and data.

You'll work directly with software engineers and mission stakeholders to strengthen software quality, accelerate secure delivery, and reduce the risk of failures in operational environments. This is more than a test automation role. It's an opportunity to help ensure the technology behind critical intelligence missions works accurately, reliably, and when it matters most.

Position may be performed in the following locations below. Please note Gaithersburg, MD is the program’s primary work location. Gaithersburg, MD Alexandria, VA Chantilly, VA Englewood, CO St. Louis, MO Tucson, AZ

Clearance Level

Required:

Active Top Secret/SCI with the ability to successfully pass a Polygraph examination.

• Design, develop, execute, and maintain robust automated test scripts using Playwright to validate web application functionality, user workflows, and regression requirements.
• Develop and maintain automated API tests using Bruno and/or Postman to validate RESTful services, request/response payloads, authentication, error handling, and data integrity.
• Build and enhance scalable test automation frameworks that support functional, integration, end-to-end, smoke, and regression testing.
• Integrate automated test suites into CI/CD pipelines to enable continuous testing, rapid feedback, and early defect detection.
• Collaborate with Agile development teams to define acceptance criteria, identify test scenarios, and implement automated testing strategies within each sprint.
• Participate actively in Agile ceremonies, including sprint planning, daily standups, backlog refinement, sprint reviews, and retrospectives.
• Develop and execute comprehensive test plans, test cases, and test scripts based on user stories, functional requirements, and system specifications.
• Perform API validation, including HTTP methods, status codes, JSON payloads, authorization, authentication, and negative testing scenarios.
• Analyze automated test results, troubleshoot failures, identify root causes, and document defects using Agile tracking tools such as Jira.
• Partner with software developers to improve application testability, identify opportunities for earlier testing, and reduce manual regression testing.
• Establish and promote test automation standards, reusable components, and engineering best practices across the development team.
• Support test data management, environment configuration, and test execution across development, integration, and staging environments.
• Provide technical guidance and mentorship to junior test engineers and contribute to continuous improvement of the team's quality engineering practices.
• Ensure testing activities align with customer security requirements, organizational quality standards, and program…