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Sr Principal System Engineer - Integration & Test (AHT)

Northrop Grumman
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Redondo Beach, CA, USA
Sep 21, 2026
RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SCITRAVEL: Yes, 10% of the Time

Description

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.
Job Description

Northrop Grumman’s Space Systems Sector is seeking Sr PrincipalSystems Engineer - Level 4 to join our team in Redondo Beach, CA.

In this role, the Sr Principal Systems Engineer will support factory (DT&E1) testing and site testing (DT&E2) by performing dry-runs and run-for-records (RFRs) along with test procedure development, conducting & presenting at Test Readiness Reviews (TRRs) and Test Review Boards (TRBs).

The position will involve factory and site SOW work mentioned above along with development/inputs for Request For Change (RFCs) and/or any CDRL documents (i.e. Network Interface Planning Documents, System Test Plans, Facilities Requirements Documents, Site Integration Requirements, etc) within the Ground Element scope.

Job responsibilities include, but are not limited to, the following:

  • Develop, update, and execute system-level integration and test procedures for the Ground Element in both factory (DT&E1) and site (DT&E2) environments.

  • Plan and conduct dry‑runs and run‑for‑record (RFR) test executions, including coordination of test resources, configurations, and data collection.

  • Prepare and present material for Test Readiness Reviews (TRRs) and Test Review Boards (TRBs), including test objectives, configurations, results, and discrepancies.

  • Analyze test data to verify requirements compliance, identify anomalies, perform root‑cause analysis, and drive resolution of discrepancies with multi‑disciplinary teams.

  • Develop and/or provide inputs to Requests for Change (RFCs) and Configuration/Change Control artifacts based on test findings and evolving system needs.

  • Author and maintain Ground Element technical documentation such as Network Interface Planning Documents, System Test Plans, Site Integration Requirements, and Facilities Requirements Documents.

  • Support integration of hardware, software, and networks within the ground system, including configuration, checkout, and troubleshooting of complex system interfaces.

  • Collaborate closely with software, network, and systems engineering teams to ensure testability, integration readiness, and verification of system requirements.

  • Participate in site installation, integration, and verification activities, including extended travel to operational locations as required.

  • Adhere to established test processes, configuration management, and quality standards while identifying and implementing continuous improvements to test efficiency and effectiveness.

Basic Qualifications for Systems Engineer - Level 4:

  • Bachelor's degree in STEM (Science, Technology, Engineering, Math) discipline with 8+ years of engineering experience OR, Master's degree in STEM (Science, Technology, Engineering, Math) discipline with 6+ years of experience OR, PhD degree in a STEM discipline with 4+ year of experience

  • Candidate must have an activeSCI at time of application. Continued employment thereafter will be subject to maintenance at the level of clearance and program access required for the position in the future.

  • Willingness to travel up to 25% of the time, often for extended periods (up to two months’ duration)

  • Minimum of three years of experience in test procedure development, test planning, and/or integration and test

  • Demonstrated written and oral communications skills through written requirements, test, and evaluation criteria

Preferred Qualifications for Systems Engineer - Level 4

  • Working knowledge of Linux operating systems

  • Experience working in a command line environment

  • Working knowledge of scripting languages such as Python

  • Experience in SW integration activities

  • Experience in basic networking

  • Certified in CompTia Security + or higher

  • Working knowledge of test instruments including oscilloscopes, spectrum analyzers, etc.

  • Experience in troubleshooting of complex systems

  • Experience with ground segment testing and ground integration activities

  • Experience of working as part of a diverse team in a fast-paced environment

  • Experience with Automated Test and Integration frameworks including Playwright

Curious about all the exciting developments with the Northrop Grumman Space Sector? Click the link below:

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Working at Northrop Grumman is more than just a paycheck. We offer a comprehensive Total Rewards and benefits package designed to help you thrive at work and in life. For more information on our Total Rewards package, please visit our Total Rewards site: Northrop Grumman Total Rewards

As a full-time employee of Northrop Grumman, you are eligible for:

  • Medical, Dental & Vision coverage

  • 401k

  • Educational Assistance

  • Life Insurance

  • Employee Assistance Programs & Work/Life Solutions

  • Paid Time Off

  • Health & Wellness Resources

  • Employee Discounts

  • Flexible Schedules: for example, the ability to work a 9/80 work schedule, which allows an employee to work a nine-hour day Monday through Thursday and take every other Friday off of work.

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Primary Level Salary Range: $142,200.00 - $213,400.00The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

Job ID

R10244580
About Northrop Grumman

Northrop Grumman solves the toughest problems in space, aeronautics, defense and cyberspace to meet the ever-evolving needs of our customers worldwide. Our 90,000 employees are Defining Possible every day to create and deliver advanced systems, products and services. Northrop Grumman careers and internships are as varied as your interests, with a lifetime of potential that will allow you to work together with people from many backgrounds, personal passions and disciplines.

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