Principal/ Sr Principal Software I&T Engineer

Company: Northrop Grumman
Location: Woodland Hills
Posted on: April 1, 2026

Job Description:

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: No CLEARANCE TYPE: Secret TRAVEL: 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. Northrop Grumman Mission Systems is a trusted provider of mission-enabling solutions for global security. Our Engineering and Sciences (E&S) organization pushes the boundaries of innovation, redefines engineering capabilities, and drives advances in various sciences. Our team is chartered with providing the skills, innovative technologies to develop, design, produce and sustain optimized product lines across the sector while providing a decisive advantage to the warfighter. Come be a part of our mission! The Engineering & Sciences organization supporting the Advanced Navigators business area at Northrop Grumman Mission Systems (NGMS) is looking for you to join our team as a Software Integration & Test (I&T) Engineer based out of Woodland Hills, CA. The Software I&T Engineer plays a key role in technical planning, system integration, and the verification and validation of embedded software systems. Their primary responsibility is the integration and verification of software for the state-of-the-art M-code capable Embedded GPS/Inertial Navigation System (EGI-M). This role ensures that the software under testing meets all system-level requirements. The Software I&T Engineer collaborates closely with the Chief Engineer, Integration & Test leads, and software development teams to maintain high standards and deliver reliable solutions. What You’ll get to Do: Conduct comprehensive verification of software requirements to ensure alignment with system specifications Design and develop detailed and robust test cases, test scripts, and test procedures to validate software functionality and performance Create and deliver clear, concise, and effective test procedures to ensure that software test activities are executed accurately, with resulting data conforming to specified requirements Work with various Agile teams to ensure all requirements are verified through inspection, analysis, demonstration, or test often by providing test and data reduction scripts Develop, maintain, and optimize data reduction scripts to enhance efficiency and streamline validation processes Minimum 10% travel to be expected (to customer, supplier, and other Northrop Grumman locations) This position is contingent on the successful transfer of a US security clearance This position can be filled as a Principal Software I&T Engineer or a Senior Principal Software I&T Engineer Basic Qualifications for Principal Software I&T Engineer: Bachelor’s degree in Systems Engineering or another STEM (Science Technology, Engineering, Math) discipline? with 5 years of experience in Software Integration & Test Engineering experience, or related technical fields, or a Master's degree in Systems Engineering or another STEM (Science Technology, Engineering, Math) discipline with 3 years of experience in Software Integration & Test or related technical fields, PHD Systems Engineering or another STEM (Science Technology, Engineering, Math) discipline?. Proficiency with MathWorks development tools, including MATLAB and Simulink Hands-on experience with one or more communication protocols such as MIL-STD-1553, ARINC-429 or RS-422 Experience integrating hardware and software in a lab environment Skilled in writing both automated and manual test procedures to validate system functionality Extensive background in software integration, and testing processes Experience supporting test investigations and debugging efforts Demonstrated excellent written and oral communication skills US Citizenship Ability to obtain/maintain a DoD Secret Clearance Ability to work onsite full-time in Woodland Hills, CA Basic Qualifications for Senior Principal Software I&T Engineer: Bachelor’s degree in Systems Engineering or another STEM (Science Technology, Engineering, Math) discipline? with 8 years of experience in Software Integration & Test Engineering experience, or related technical fields, or a Master's degree in Systems Engineering or another STEM (Science Technology, Engineering, Math) discipline with 5 years of experience in Software Integration & Test or related technical fields, PHD Systems Engineering or another STEM (Science Technology, Engineering, Math) discipline? with 3 years of experience in Software Integration & Test Engineering experience, or related technical fields Proficiency with MathWorks development tools, including MATLAB and Simulink Hands-on experience with one or more communication protocols such as MIL-STD-1553, ARINC-429 or RS-422 Experience integrating hardware and software in a lab environment Skilled in writing both automated and manual test procedures to validate system functionality Extensive background in software integration, and testing processes Experience supporting test investigations and debugging efforts Demonstrated excellent written and oral communication skills US Citizenship Ability to obtain/maintain a DoD Secret Clearance Ability to work onsite full-time in Woodland Hills, CA Preferred Qualifications: Strong hands-on experience with Ethernet protocols Experience with GPS and Inertial navigation systems Proficient in applying DO-178C safety-critical software verification processes, ensuring compliance with rigorous aerospace and defense industry standards. Well-versed in Agile development methodologies and tools, with practical experience using JIRA for issue tracking and team collaboration Skilled in utilizing IBM Rational DOORS for requirements management and traceability throughout the development lifecycle Active DoD Secret Clearance MPR Primary Level Salary Range: $114,000.00 - $171,000.00 Secondary Level Salary Range: $142,200.00 - $213,400.00 The 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.

Keywords: Northrop Grumman, Perris , Principal/ Sr Principal Software I&T Engineer, Engineering , Woodland Hills, California