Sr Principal Software Engineer - DevOps

0090 CORP-Corporate Office; United States; On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Flexible work arrangements

Total Rewards Program

Learning and growth opportunities

Overtime / bonuses depending on role

Job summary

Northrop Grumman in Melbourne, FL seeks a Sr Principal Software Engineer – DevOps to lead refactoring of a monolithic system into microservices and design robust .NET backends with Blazor UI.

The role requires a Secret clearance, strong networking knowledge, and experience in Agile environments. On-site work with relocation assistance and travel up to 10% may be available.

Qualifications

• Bachelor's Degree in a STEM discipline with 8+ years of relevant experience.
• Hands-on experience building full-stack apps with C#/.NET.
• Experience with UI frameworks React/Angular/Blazor and REST/gRPC.
• Proficiency with databases and REST APIs.
• Solid understanding of networking concepts (TCP/IP, VLANs, firewalls).
• Active Secret clearance with recent background investigation.
• Demonstrated success refactoring monoliths into microservices.
• DoD 8570/8140 IAT Level II+ (Security+).
• Experience leading Agile/Scrum activities.
• Familiarity with Git, CMake, Visual Studio, VS Code.
• Experience with performance profiling, automated testing, and security scanning.
• Hardware-software integration or rapid prototyping.

Responsibilities

• Lead a software team refactoring monolith to microservices using domain-driven design.
• Design, develop, and maintain full-stack C#/.NET apps including APIs and Blazor UI.
• Implement and manage core infrastructure services such as DNS, DHCP, NAS, and Active Directory.
• Diagnose networking issues (VLANs, firewalls, routing) affecting service connectivity.
• Participate in Agile ceremonies, mentor junior developers, and promote best practices.

Skills

C#/.NET

Full-stack development

React/Angular/Blazor

REST/gRPC APIs

Networking fundamentals

Security clearance

Agile/Scrum

DevOps tooling

Git/CI/CD

DoD IAT Level II+

Education

Bachelor's Degree in STEM

Master's Degree in STEM

PhD in STEM

Tools

Visual Studio

VS Code

Git

CMake

Job description

Sr Principal Software Engineer – DevOps

Location: Melbourne, Florida (on‑site). Relocation assistance may be available. Clearance required: Secret. Travel: 10% of the time.

Responsibilities

• Lead a software engineering team in refactoring a monolithic codebase into micro‑service compliant architecture using domain‑driven design.
• Design, develop, and maintain full‑stack C#/.NET applications, including backend APIs and Blazor UI.
• Implement and manage core infrastructure services such as DNS, DHCP, NAS, and Active Directory.
• Diagnose and troubleshoot networking fundamentals (VLANs, firewalls, routing, load‑balancing) that affect service connectivity.
• 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 STEM discipline with at least 8 years of relevant experience, or STEM Master’s with 6 years, or STEM PhD with 4 years.
  • Proven experience developing software with C#/.NET; additional language experience (C/C++, Python, Java) is a plus.
  • Hands‑on experience building full‑stack applications using UI frameworks such as React, Angular, or Blazor and RESTful or gRPC services.
  • Proficiency with databases and REST APIs.
  • Solid understanding of networking concepts (TCP/IP, VLANs, firewalls, cloud networking).
  • Active 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+ w/CE).
  • Experience leading Agile/Scrum activities such as sprint planning and retrospectives.
  • Familiarity with development tooling (Git, CMake, Visual Studio, VS Code).
  • Experience with performance profiling, automated testing frameworks, and security scanning tools.
  • Background in hardware‑software integration or rapid prototyping projects.
  • Strong written and verbal communication skills.

Benefits

• Flexible work arrangements and a supportive team environment.
• Comprehensive Total Rewards Program: retirement and savings plan, group medical, dental, vision coverage, life and disability insurance, and flexible spending accounts.
• Opportunities for learning and professional growth across diverse projects.
• Potential eligibility for overtime, shift differential, and discretionary bonuses depending on role and performance.

EEO Statement

Northrop Grumman is an Equal Opportunity Employer and provides equal employment opportunities 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. U.S. citizenship is required for all positions with a government clearance.