Sr Principal Software Engineer - DevOps

Northrop Grumman Corp. (AU); Melbourne (FL); On-site; USD 140,000 - 190,000; Full time

Job summary

Northrop Grumman Aeronautics Systems is seeking a Sr Principal Software Engineer - DevOps to join onsite in Melbourne, FL. You will lead a software team, refactor monolithic code to microservices, and implement core infrastructure while ensuring robust security practices.

The role requires strong C#/.NET Core skills, full-stack experience, and the ability to mentor others in Agile environments. A Secret clearance is required and relocation support may be available.

Qualifications

• Bachelor’s Degree in a STEM field from an accredited university with 8+ years of relevant experience (or STEM Master’s with 6+ years, or STEM PhD with 4+ years).
• Experience building full-stack apps using C#/.NET Core and UI frameworks like React/Angular/Blazor.
• Experience with RESTful or gRPC services and databases.
• Security clearance: active in-scope government Secret clearance.

Responsibilities

• Lead a diverse software engineering team to refactor monolithic code to micro-service architecture.
• Design, develop, and maintain full-stack C#/.NET apps including backend APIs and Blazor UI.
• Refactor monolithic systems into microservices using domain-driven design.
• Implement and manage core infra services and diagnose network-related connectivity issues.
• Mentor junior developers and promote DevOps and coding best practices.

Skills

C#/.NET Core

Full-stack development

React

Angular

Blazor

RESTful APIs

gRPC

Databases

Education

Bachelor's Degree in STEM

STEM Master’s degree

STEM PhD

Tools

Git

CMake

Visual Studio

Visual Studio Code

Job description

Overview

Northrop Grumman Aeronautics Systems has an opening for a Sr Principal Software Engineer - DevOps to join our team of qualified, diverse individuals. This position will be located onsite in Melbourne, Florida.

Responsibilities

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.

• 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

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 (e.g., Security+ with 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

Benefits

We offer flexible work arrangements, learning opportunities, exposure to a wide variety of projects and customers, and a collaborative team environment. Our Total Rewards Program includes a comprehensive benefits package such as health, dental and vision coverage, life and disability insurance, and flexible spending accounts.

Restrictions and Additional Information

Relocation assistance may be available. Clearance: Secret. Travel: Yes, up to 10% of the time.