Systems Test Engineer - Level 3 or 4 (9048)

Northrop Grumman’s Space Sector is seeking a Systems Test Engineer to join our team in Aurora, CO.  

• →Participate as a core member of an Agile/Scrum team, supporting sprint planning, daily stand-ups, reviews, and retrospectives.
• →Analyze test requirements, user stories, acceptance criteria, and technical documentation to define clear, measurable test objectives.
• →Design detailed test cases, test procedures, and verification steps based on technical specifications and interface definitions.
• →Execute functional, regression, and end-to-end tests for developer-delivered software changes across web, service, and data layers.
• →Isolate, reproduce, troubleshoot, and document defects with clear, actionable defect reports.
• →Develop, maintain, and execute automated tests and scripts using tools and languages such as Python, Bash, or similar.
• →Test REST APIs, service interfaces, and data-driven workflows using tools such as Postman, Swagger/OpenAPI, Curl, or equivalent.
• →Review and interpret application, service, container, and system logs to support troubleshooting and root-cause analysis.
• →Collaborate closely with developers, product owners, scrum masters, and systems engineers to clarify requirements, improve testability, and drive quality throughout the lifecycle.
• →Contribute to continuous improvement of test strategies, tooling, and processes; Level 4 engineers lead and champion these improvements across the program.

This requisition may be filled at a higher job grade based on the qualifications listed below.

This requisition may be filled as either a Level 3 or Level 4.

• Must have an active Top Secret/SCI clearance at time of application
• Bachelor’s degree with 8 years of relevant experience – OR – Master’s degree with 6 years of relevant experience – OR – PhD with 4 years of relevant experience. An additional 4 years of relevant experience may be considered in lieu of a degree.
• Experience defining clear, measurable test objectives from test requirements, user stories, acceptance criteria, and technical documentation.
• Ability to design detailed test cases, test procedures, and verification steps from technical specifications.
• Proven experience executing functional, regression, and end-to-end testing for developer-delivered software changes.
• Demonstrated skill in isolating, reproducing, troubleshooting, and documenting defects with precision and actionable defect reports.
• Experience with automated testing tools and shell scripting languages such as Python, Bash, or similar.
• Experience testing REST APIs, service interfaces, and data-driven workflows using tools such as Postman, Swagger/OpenAPI, curl, or equivalent.
• Ability to read and interpret application, service, container, and system logs.
• Strong written and verbal communication skills and ability to collaborate effectively.

• Must have an active Top Secret/SCI clearance at time of application
• Bachelor’s degree with 8 years of relevant experience – OR – Master’s degree with 6 years of relevant experience – OR – PhD with 4 years of relevant experience. An additional 4 years of relevant experience may be considered in lieu of a degree.
• Experience defining clear, measurable test objectives from test requirements, user stories, acceptance criteria, and technical documentation.
• Ability to design detailed test cases, test procedures, and verification steps from technical specifications.
• Proven experience executing functional, regression, and end-to-end testing for developer-delivered software changes.
• Demonstrated skill in isolating, reproducing, troubleshooting, and documenting defects with precision and actionable defect reports.
• Experience with automated testing tools and shell scripting languages such as Python, Bash, or similar.
• Experience testing REST APIs, service interfaces, and data-driven workflows using tools such as Postman, Swagger/OpenAPI, curl, or equivalent.
• Ability to read and interpret application, service, container, and system logs.
• Strong written and verbal communication skills and ability to collaborate effectively.

• Experience working within an Agile/Scrum development environment.
• Experience working with requirements development, including refining, clarifying, and decomposing requirements.
• Demonstrated ability to implement process improvements, streamline verification activities, and develop efficiencies across the test lifecycle.
• Experience with automated test frameworks such as JUnit, Jest, Vitest, Selenium, Cypress, Playwright, or comparable tools.
• Experience supporting CI/CD-based test execution and pipeline troubleshooting using tools such as Jenkins or similar build and deployment systems.
• Experience validating backend services and modern web applications built with technologies such as Spring Boot and React.
• Experience performing data validation and query-based verification using MongoDB, Elasticsearch, SQL, or related data platforms.
• Experience testing authentication, authorization, and role-based access controls, including OAuth2, OIDC, Keycloak, or similar identity solutions.
• Experience working in Docker, Kubernetes, Helm, or other containerized deployment environments.
• Ability to challenge requirements and solutions constructively to improve testability, supportability, and overall quality.

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