Senior Systems Test Engineer (TS/SCI) – Agile & API Automation

Northrop Grumman; Aurora (CO); On-site; USD 104,000 - 194,000; Full time

Benefits offered by this job

Relocation assistance

Overtime eligibility

Discretionary bonus

Health insurance

Life and disability insurance

Savings plan

Holidays & PTO

Job summary

Northrop Grumman’s Space Sector in Aurora, CO is seeking mid- to senior-level Systems Test Engineers to join an Agile team delivering mission-critical software. You will define test objectives, design and execute manual and automated tests, and collaborate with developers, product owners, and systems engineers to ensure high-quality deliveries.

Level 4 engineers will provide technical leadership, mentorship, and drive test strategy improvements across the program, with opportunities to influence

Qualifications

• 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.
• 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.

Responsibilities

• 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.

Skills

Agile/Scrum experience

Test automation

API testing

Shell scripting

Troubleshooting

Collaboration & communication

Education

Bachelor’s degree + 8 years experience OR Master’s +6 years OR PhD +4 years

Tools

Postman

Swagger/OpenAPI

curl

Jenkins

Docker

Kubernetes

JUnit

Selenium

Playwright

MongoDB

Elasticsearch

SQL

Job description

Northrop Grumman’s Space Sector in Aurora, CO is seeking mid- to senior-level Systems Test Engineers to join an Agile team delivering mission-critical software. You will define test objectives, design and execute manual and automated tests, and collaborate with developers, product owners, and systems engineers to ensure high-quality deliveries.

Level 4 engineers will provide technical leadership, mentorship, and drive test strategy improvements across the program, with opportunities to influence