Senior Principal Software Engineer: ASP.NET Core Lead

Northrop Grumman; Corinne (UT); On-site; USD 123,000 - 213,000; Full time

Benefits offered by this job

Relocation assistance

Job summary

Northrop Grumman’s Space Sector is seeking a Sr. Principal Software Engineer to lead the design, development, and sustainment of web applications for Manufacturing and Operations.

Based in Redondo Beach, CA / Promontory, UT or Linthicum, MD, this role guides technical direction and mentors developers in a mission‑focused environment. You will work with ASP.NET Core, C#, SQL Server, and Agile practices, drive modernization, and ensure security requirements are met.

Qualifications

• Bachelor's Degree in a STEM discipline plus 8 years of engineering/technical experience; OR a Master's Degree in a STEM discipline plus 6 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.
• Ability to obtain and maintain a U.S. Government Top Secret clearance.

Responsibilities

• Sustain and enhance legacy .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.
• Collaborate with business partners, product owners, analysts, and other engineers to define technical solutions aligned to operational needs.
• 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.

Skills

C#

ASP.NET Core

SQL Server

Agile

Leadership

Mentoring

Secure development

Communication

Education

Bachelor's in STEM

Master's in STEM

Tools

Azure DevOps

CI/CD

Windows Server

IIS

Python Django/FastAPI

OpenShift

RESTful APIs

Job description

Northrop Grumman’s Space Sector is seeking a Sr. Principal Software Engineer to lead the design, development, and sustainment of web applications for Manufacturing and Operations.

Based in Redondo Beach, CA / Promontory, UT or Linthicum, MD, this role guides technical direction and mentors developers in a mission‑focused environment. You will work with ASP.NET Core, C#, SQL Server, and Agile practices, drive modernization, and ensure security requirements are met.