Principal Software Engineer

Principal Software Engineer – Northrop Grumman Aeronautics Systems

Location:

Melbourne, FL or Oklahoma City, OK (onsite).

Relocation assistance may be available.

Clearance required:

Secret, with ability to obtain and maintain Top‑Secret clearance.

Responsibilities:

• Design, develop, document, test, and debug applications software and systems that contain logical and mathematical solutions while ensuring software standards are met.
• Maintain and improve the software CI/CD pipelines to enable fast, bug‑free delivery of critical business software to production.
• Set up and deploy development, test, and build environments.
• Create and update Windows installers; install, test, and verify software products.
• Provide support for the software build and installation processes.
• Work within a cross‑functional scrum team to develop high‑priority mission planning features.
• Understand third‑party software and hardware peripherals to support implementation of software interfaces and integration.
• Develop software test products such as Verification Cross Reference Matrices to tie software requirements to software tests, software test plans, procedures, and test reports.
• Define and develop test approaches for new software and system capabilities.
• Compile data and define changes required in testing procedures or new testing requirements.
• Interface on a technical level with the customer.
• Support the Agile framework as a Scrum Master when required.

Basic Qualifications:

• Bachelor’s degree in a STEM discipline from an accredited university and at least 5 years of relevant experience; or a STEM master’s degree with 3 years of relevant experience; or a STEM PhD with 1 year of relevant experience.
• Experience with Agile methodology and continuous integration/continuous deployment tools (Bamboo, Jenkins).
• Proficiency in C# and/or Java and object‑oriented software design paradigms.
• Experience with one or more of the following scripting languages: YAML, Python, Power Shell, Batch, Type Script.
• Active US Government Secret clearance (background investigation within the last 6 years or currently in continuous evaluation) and ability to obtain Top‑Secret clearance.
• Ability to obtain and maintain Special Access Program (SAP) clearance within a reasonable time.

Preferred Qualifications:

• 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.
• Proficiency in .NET Framework.
• Experience with Windows Presentation Foundation (WPF) and Microsoft Windows‑based applications.
• Experience with microservice development and service communication protocols such as gRPC and/or REST.
• Experience with relational databases and SQL.

Salary Range: $93,300.00 – $. The actual offer may vary based on scope, qualifications, and market conditions. Eligible employees may receive overtime, shift differential, discretionary bonuses, and long‑term incentive plans.

Benefits include health insurance, life and disability insurance, savings plan, company‑paid holidays, and paid time off (vacation and/or personal business). Northrop Grumman is an Equal Opportunity Employer. For our complete EEO and pay transparency statement, please visit  citizenship is required for all positions with a government clearance.