Northrop Grumman Space Systems, Multi-Domain Operations, and Missile Defense Integration Business Unit (BU) has an exciting career opportunity for a Sr. Principal Systems Integration and Test Engineer – Level 4. This is an exciting opportunity for you to join our team of qualified and diverse individuals contributing to the latest advancements being made in the OPIR field. The position is located on-site in Boulder, CO.
Position Overview:
As a Systems Integration & Test Engineer, you will be responsible for the integration, testing, deployment, and troubleshooting/debugging of software applications to multiple locations across Colorado. Primary software deployments are in Boulder with occasional travel to Aurora and Colorado Springs.
Essential Functions:
The selected candidate will lead integration & testing on multiple software product baselines. This includes the following essential functions.
- I&T support for multi‑language environments – Python, C++, and Java (in Linux environments).
- Software deployment, integration, and testing – Perform these activities in the Boulder factory environment and site facilities.
- Regression and post‑patch testing – Execute regression tests and validate software after patches.
- Live debugging and analysis – Conduct live software debugging, performance analysis, and defect reporting using Atlassian Jira.
- Test script development & documentation – Create automated test scripts, document test procedures, produce test reports, and conduct formal requirement verification and validation.
- Special test events – Support and coordinate special test events as needed.
- Collaboration & communication – Effectively collaborate with development, sustainment, program management, and customers; provide regular status updates to engineering and management; representing I&T in Defect Resolution Board meetings.
Basic Qualifications:
- Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline from an accredited university and 8 years of related experience; a Master’s Degree in a STEM discipline and 6 years of related experience; or a PhD with 4 years of related experience.
- Ability and willingness to travel up to 10% of the time.
- Applicants must have a current active in-scope U.S. Government issued Secret security clearance at the time of application which is required to start.
- Experience with formal requirement verification and composition
- Experience with test procedure development for verification of requirements
- Experience creating test plans and procedures
- Agile development experience a plus
- Experience with the Agile software development lifecycle
- Experience using Red Hat Linux and Windows operating systems
Preferred Qualifications:
- DoD Top Secret and SCI/Poly eligible highly desired
- A DoD 8570 certification at IAT Level II or higher (Security+) highly desired
- Experience or related experience in Overhead Persistent Infrared (OPIR) systems
- Working knowledge of DOORS, CAMEO, Atlassian tools (Jira, Confluence, Bitbucket)
Skills Required
- Bachelor's degree in STEM with 8 years experience, or Master's with 6 years, or PhD with 4 years
- Current active in-scope U.S. Government issued Secret security clearance at time of application
- Ability and willingness to travel up to 10% of the time
- Experience with multi-language environments: Python, C++, and Java (in Linux environments)
- Experience with formal requirement verification and composition
- Experience developing test procedures for verification of requirements
- Experience creating test plans and procedures
- Experience using Red Hat Linux and Windows operating systems
- Experience with live debugging, performance analysis, regression and post-patch testing, and defect reporting using Atlassian Jira
- Agile development experience / familiarity with Agile SDLC
- DoD Top Secret and SCI/Poly eligibility
- DoD 8570 certification at IAT Level II or higher (e.g., Security+)
- Experience or related experience in Overhead Persistent Infrared (OPIR) systems
- Working knowledge of DOORS, CAMEO, Confluence, and Bitbucket
Northrop Grumman Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Northrop Grumman and has not been reviewed or approved by Northrop Grumman.
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Retirement Support — 401(k) matching is considered strong, with additional defined-benefit coverage for certain cohorts and options like catch-up contributions. Retirement programs are repeatedly highlighted as a core strength of the total rewards.
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Leave & Time Off Breadth — PTO, company-paid holidays, and compressed work schedules (such as 9/80) provide meaningful time away and flexibility. These scheduling options are cited as a major quality-of-life benefit across many locations.
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Parental & Family Support — Paid parental leave alongside caregiver leave, adoption assistance, and back-up care supports a range of family needs. These programs have been expanded recently, signaling continued investment in family support.
Northrop Grumman Insights
What We Do
We are a close-knit community of big thinkers collaborating to keep the world safe. Our passion, creativity and expertise bring next-level technology solutions to life in autonomous systems, cyber, C4ISR, strike, space, and logistics and modernization for our customers around the globe. On the Northrop Grumman team, you’ll join our pursuit of excellence immersed in a dynamic culture of innovation and respect. Your unique perspective will help achieve our shared vision for the future of global security. Every step of the way, you'll be supported by world-class training, employee resource groups and a comprehensive benefits package that enables greater health and happiness for you and your family. Worldwide and across disciplines, we’re challenging what’s possible for technology to protect people and places from undersea to outer space and into cyberspace. And we see the impact of our performance every day. We are Northrop Grumman, and we work on what matters—now, you too can make a difference. Explore opportunities in engineering, IT, manufacturing, business management, cybersecurity and more with us. Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer.






