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Principal Software Integration and Test Engineer - Advanced Navigators

Northrop Grumman

$110,300 - $165,500
Sep 23, 2025
Los Angeles, CA, US
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Northrop Grumman Mission Systems is looking for a Software Integration & Test (I&T) Engineer to play a key role in technical planning, system integration, and the verification and validation of embedded software systems 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 and collaborates with various teams to maintain high standards and deliver reliable solutions.

Requirements

  • 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
  • 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

Responsibilities

  • 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

Other

  • Bachelor’s degree with 5 years of experience in Software Integration & Test Engineering, or related technical fields, a Master's degree with 3 years of experience
  • 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
  • Minimum 10% travel to be expected (to customer, supplier, and other Northrop Grumman locations)