Sr. Principal Software Engineer
About The Position
Northrop Grumman’s Space Sector is seeking a Sr. Principal Software Engineer to support the design, development, enhancement, and sustainment of web applications for its Manufacturing and Operations organization. The role may be based in Redondo Beach, California; Promontory, Utah; or Linthicum, Maryland. The engineer will lead development activities across the application lifecycle, working with functional stakeholders, technical teams, and program leadership to deliver secure, scalable, maintainable software solutions supporting manufacturing and operational objectives. The position involves hands-on development with ASP.NET Core, C#, and SQL Server; technical direction; modernization and sustainment; and mentoring developers. The role offers the opportunity to lead development of applications that directly support Space Sector manufacturing and operations, contribute to modernization and sustainment of critical internal platforms, and influence technical direction and engineering practices in a collaborative environment.
Requirements
- Bachelor’s degree in a STEM discipline and 8 years of engineering or technical experience, or a master’s degree in a STEM discipline and 6 years of engineering or 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.
Nice To Haves
- 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 working in a regulated, secure, or mission-critical environment.
- Strong communication skills and ability to work across technical and non-technical teams.
- Experience with Windows Server and IIS administration.
- Experience working with Python frameworks, including Django and FastAPI.
- Experience working with containers, such as OpenShift.
Responsibilities
- Sustain and enhance legacy .NET Framework applications, including assessing and modernizing codebases, such as migrating to .NET Core, as business needs evolve.
- Collaborate with 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 engineers to define technical solutions aligned with operational needs.
- Support software lifecycle activities, including requirements analysis, code reviews, troubleshooting, defect resolution, and performance improvement.
- Promote 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 with cybersecurity, infrastructure, and program teams to ensure deployed solutions meet mission and security requirements.
Benefits
- Health insurance coverage
- Life insurance
- Disability insurance
- Savings plan
- Company-paid holidays
- Paid time off (PTO) for vacation and/or personal business
- Potential eligibility for overtime, shift differential, and a discretionary bonus, depending on position
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What This Job Offers
Job Type
Full-time
Career Level
Senior
