Principal Software Engineer

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: NoCLEARANCE TYPE: NoneTRAVEL: 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 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. Northrop Grumman’s Space Sector is seeking a Sr. Principal Software Engineer to support the design, development, enhancement, and sustainment of web applications for the Manufacturing and Operations organization. This role will lead development activities across the application lifecycle, partnering with functional stakeholders, technical teams, and program leadership to deliver secure, scalable, and maintainable software solutions that support manufacturing and operational objectives. NET Core, C#, SQL Server, and Agile delivery practices, along with the ability to guide technical direction, support modernization efforts, and mentor other developers in a mission-focused environment. Opportunity to lead development of applications that directly support Space Sector manufacturing and operations. Exposure to modernization and sustainment efforts across critical internal platforms. Collaborative environment with opportunities to influence technical direction and engineering practices. NET Framework applications, including assessing and modernizing codebases (e.g. migrating to .NET Core) as business needs evolve. Work with other software engineers on the architecture, design, development, testing, deployment, and sustainment of web-based business applications. Develop and maintain applications using ASP.NET Core and C#. Design, optimize, and support back-end data solutions using SQL Server. Support full software lifecycle activities, including requirements analysis, code reviews, troubleshooting, defect resolution, and performance improvement. Drive adherence to software engineering best practices, coding standards, and secure development approaches. Participate in and help lead Agile ceremonies, sprint planning, backlog refinement, and technical estimation. Mentor and support junior and mid-level developers. Contribute to system modernization, integration, and continuous improvement initiatives across manufacturing and operations applications. Work closely with cybersecurity, infrastructure, and program teams to ensure deployed solutions meet mission and security requirements. Bachelor's Degree in a STEM discipline plus with 8 years of engineering/technical experience; Experience developing and supporting web applications using C# and ASP.NET Core. Experience with SQL Server database development, queries, stored procedures, and performance tuning. Experience working in an Agile software development environment. Experience leading technical efforts, software tasks, or small development teams. Ability to translate business or operational needs into software solutions. Government Top Secret clearance. Experience supporting manufacturing, operations, or enterprise business applications. Experience with RESTful APIs, system integrations, and service-oriented application design. Experience with front-end web technologies and modern UI frameworks. Experience with Azure DevOps, CI/CD pipelines, automated testing, or application modernization. Experience with Windows Server and IIS administration. Experience working with Python frameworks including Django and FastAPI. 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. 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. 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.