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. Join Northrop Grumman on our continued mission to push the boundaries of possible across land, sea, air, space, and cyberspace. Enjoy a culture where your voice is valued and start contributing to our team of passionate professionals providing real-life solutions to our world’s biggest challenges. We take pride in creating purposeful work and allowing our employees to grow and achieve their goals every day by Defining Possible. With our competitive pay and comprehensive benefits, we have the right opportunities to fit your life and launch your career today. Northrop Grumman Defense Systems is seeking a passionate Lead Senior Principal Software Engineer to join our team. This role will be based in Roy, Ut. And supports the Sentinel Program. We're looking for a Senior Principal Software Engineer and full stack developer to lead and deliver next-generation software solutions for multi-domain defense applications. This role requires a hands-on leader with deep technical expertise, proven experience across the full software lifecycle, and the ability to mentor, collaborate, and drive scalable, containerized architectures in secure environments. Your responsibilities will also include: Develop vertically traceable requirements; Design and implement software to meet documented requirements; Develop and lead code unit testing and peer reviews of other developers’ changes; Lead the full life cycle of software development; Lead efforts in Agile development including iteration planning and reporting; Troubleshoot and debug software in both desktop and target environments; Build, integrate, and maintain microservices and REST APIs; Develop scalable data pipelines and workflows to support data analysis; Design and implement software interfaces; Ensure technical feasibility of UI/UX designs in collaboration with front-end teams; Work assigned defect reports to support incremental product builds and releases; Lead integration of software in lab environments; Lead use case development, requirements solicitation, derivation, and decomposition; Utilize advanced software engineering practices, including development in C++ and Python; Develop and maintain software across full stack environments (including containerized apps and UX layers); Apply best practices for system-to-system integrations using REST services, APIs, ESBs, and microservices; Support software development in Windows and Linux environments, including use of virtual machines; Utilize tools such as Git, Jira, Jenkins, Sonarqube, Bitbucket, Coverity, and Fortify; Lead develop of CMAKE scripting and version control; Lead cross-functional teams to align software solutions with business objectives. Basic Qualifications: 8 Years experience with Bachelors in relevant field of study; 6 Years with Masters, 4 Years with PhD or 04 additional years in lieu of a degree. Must be a U.S. Citizen with an active U.S. Government DoD Secret security clearance at time of application with an investigation completed within the last 6 years. Must have the ability to obtain and maintain a Top Secret Security clearance. Must have an ability to obtain and maintain Special Access Program (SAP) approval within a reasonable period of time, as determined by the company to meet its business need. Professional experience leading a software development team through agile activities. 7+ years of experience with object-oriented design and development using C++ and Python. 7+ years of experience working in an Agile environment. 7+ years of experience with full stack software development. Professional experience with Windows & Linux operating systems and virtualized environments. Professional experience leading cross-functional collaboration and requirement alignment. Lead database development, preferably PostgreSQL. Preferred Qualifications: Bachelor’s Degree in a STEM (Science, Technology, Engineering, Mathematics) discipline. Active U.S. Government DoD Top Secret security clearance. Active Special Access Program (SAP) read-in. Professional experience with DevSecOps and automated testing frameworks. Professional experience in software development lifecycle and Agile methodology. Professional experience with IBM Rational (DOORS) and Atlassian tools (JIRA, Git, Confluence). Professional experience with real-Time Component Framework (RTCF). Professional experience developing in a Linux environment using Git. Proficiency in scripting/programming languages including C++, Python, and C#. Excellent interpersonal and communication skills for cross-functional collaboration. Prior experience in System Test, SW Development, and/or Systems Engineering. Familiarity with software interfacing and containerized deployments. Strong decision-making and analytical problem-solving skills.

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