Principal/Sr Principal Software Engineer

0090 CORP-Corporate Office; United States; On-site; USD 98,400 - 147,600; Full time

Benefits offered by this job

Relocation assistance

Comprehensive benefits package

Retirement and Savings Plan

Job summary

0090 CORP-Corporate Office is seeking a Principal or Sr Principal Software Engineer for onsite work in Melbourne, Florida. This role involves designing and developing full-stack applications using C#/.NET and managing CI/CD pipelines. Candidates must possess a Bachelor's in a STEM field with significant software development experience and hold or be eligible for a DoD Secret clearance.

We offer competitive salary ranges from $98,400.00 to $184,200.00, relocation assistance, and a comprehensive benefits package, including medical, dental, and retirement plans. Join us to innovate for the future!

Qualifications

• 5+ years of relevant experience with a Bachelor's degree in a STEM discipline.
• Experience developing software with C#/.NET Core and at least one additional language.
• Proficiency with CI/CD pipelines and Docker/Kubernetes.

Responsibilities

• Design, develop, and maintain full-stack applications using C#/.NET.
• Refactor existing monolithic codebases into micro-service architectures.
• Create, configure, and manage CI/CD pipelines for automated deployments.

Skills

C#/.NET

Docker

Kubernetes

CI/CD pipelines

YAML

Agile methodologies

PostgreSQL

MSSQL Server

PowerShell

Bash

Education

Bachelor’s Degree in a STEM discipline

STEM Master’s degree

STEM PhD

Tools

Visual Studio

Git

CMake

Job description

Principal or Sr Principal Software Engineer

Location: Onsite in Melbourne, Florida. Position contingent on contract award.

Relocation assistance may be available. Clearance required for start: Yes. Clearance type: Secret. Travel: Yes, 10% of the time.

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people’s lives around the world today and for generations to come. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible.

Essential Functions

• Design, develop, and maintain full-stack C#/.NET applications, including backend SQL, APIs, and UI using Blazor.
• Refactor existing monolithic codebases into micro-service architectures using domain-driven design principles.
• Derive technical scope from customer-driven requirements.
• Create, configure, and manage CI/CD pipelines that automate build, test, containerization, and deployment.
• Containerize services with Docker and deploy them to Kubernetes clusters, maintaining Helm charts and handling scaling, upgrades, and troubleshooting.
• Write reusable automation scripts and templates in YAML, PowerShell, Bash, and JSON to support continuous integration and release management.
• Build full-stack applications, including UI frameworks (React, Angular, Blazor) and RESTful or gRPC services.
• Script in PowerShell, Bash, and JSON/YAML; require basic familiarity with IaC tools such as Terraform or Ansible.
• Solid understanding of networking concepts (TCP/IP, VLANs, firewalls, cloud networking) to diagnose connectivity issues.
• Experience in PostgreSQL or MSSQL Server, including query optimization, CTEs, and performance tuning for high-volume transactional systems.

Basic Qualifications

Principal Software Engineer

• Bachelor’s Degree in a STEM discipline from an accredited university and at least 5 years’ relevant experience; or STEM Master’s degree with 3 years’ relevant experience; or a STEM PhD with 1 year of relevant experience.
• Experience developing software with C#/.NET Core; experience in at least one additional language (C/C++, Python, Java) is a plus.
• Proficiency with Docker and Kubernetes, including writing Helm charts.
• Background in hardware-software integration or rapid prototyping projects.
• Must have an active DoD Secret or higher clearance with a background investigation completed within the last 6 years or currently enrolled into Continuous Evaluation.
• Must have the ability to obtain and maintain Special Access Program (SAP) clearance within a reasonable amount of time as determined by business needs.

Sr Principal Software Engineer

• Bachelor’s Degree in a 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.
• Experience developing software with C#/.NET Core; experience in at least one additional language (C/C++, Python, Java) is a plus.
• Proficiency with Docker and Kubernetes, including writing Helm charts.
• Experience creating and maintaining CI/CD pipelines using YAML-based definitions and automation tools (GitLab CI, Azure Pipelines, GitHub Actions).
• Participated in Agile ceremonies, mentored junior developers, and promoted best-practice coding and DevOps standards.
• Background in hardware-software integration or rapid prototyping projects.
• Must have an active DoD Secret or higher clearance with a background investigation completed within the last 6 years or currently enrolled into Continuous Evaluation.
• Must have the ability to obtain and maintain Special Access Program (SAP) clearance within a reasonable amount of time as determined by business needs.

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 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.

Thrive with Us

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.

Salary Range

Primary Level: $98,400.00 - $147,600.00. Secondary Level: $122,800.00 - $184,200.00. Salary ranges represent a general guideline; Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions and allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives.

EEO Statement

Northrop Grumman is an Equal Opportunity Employer, making decisions 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. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO.

Citizenship Requirement

U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.

Note: Existing applicants who need to update their contact information or email address can log in and use the Candidate Home page to update legal name, address, phone number, or email address.