Sr Principal Software Engineer - DevOps

Accomplish This is a vital position in support of critical software design and development. Candidate will be responsible for leading a diverse skillset software engineering team to refactor existing monolithic codebase into micro-service compliant architecture. Essential Functions: Design, develop, and maintain full-stack C#/.NET applications, including backend APIs and user-facing UI Blazor Refactor existing monolithic codebases into micro-service architectures using domain-driven design principles. Implement and manage core infrastructure services (e.g., DNS, DHCP, NAS, and Active Directory) Understand and troubleshoot networking fundamentals (VLANs, firewalls, routing, load-balancing) that affect service connectivity and collaborate with network engineers as needed. Participate in Agile ceremonies, mentor junior developers, and promote best-practice coding, DevOps and Software Engineering standards. Succeed The individual we seek will be self-motivated, proactive, goal-oriented to help us grow our services, become even better at what we do and will possess the following qualifications. Basic Qualifications: Bachelor's Degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university and at least 8 years' relevant experience, or STEM Master's degree with 6 years' relevant experience, or a STEM PHD with 4 years' relevant experience. Proven experience developing software with C#/.NET?Core; experience in at least one additional language (C/C++, Python, Java) is a plus. Hands-on experience building full-stack applications, including UI frameworks (React, Angular, Blazor) and RESTful or gRPC services. Proficiency with databases and APIs. Solid understanding of networking concepts (TCP/IP, VLANs, firewalls, cloud networking) to diagnose connectivity issues. Must have an active in scope government Secret security clearance (with a background investigation completed within the last 6 years). Preferred Qualifications: Demonstrated success refactoring monolithic applications into micro-service architectures. DoD 8570/8140 IAT Level II or higher (ex. Security+ w/CE) Experience working in Agile/Scrum environments and leading sprint planning or retrospectives. Familiarity with development tooling such as Git, CMake, Visual Studio, and Visual Studio Code. Experience with performance profiling, automated testing frameworks, and security scanning tools. Background in hardware-software integration or rapid prototyping projects. Proven ability to work both independently and as a mentor/leader within a team. Excellent written and verbal communication skills. Thrive with Us At Northrop Grumman we are invested in the growth and well-being off all our employees. We offer flexible work arrangements, phenomenal learning opportunities, exposure to a wide variety of projects and customers, and a very friendly team environment. Our Total Rewards Program offers a comprehensive employee benefits package, including a Retirement and Savings Plan, group medical, dental and vision coverage, life and disability insurance, and flexible spending accounts. If you are ready to join us in defining possible, apply now.