Posted:
3/26/2026, 12:47:07 PM
Location(s):
San Diego, California, United States ⋅ California, United States
Experience Level(s):
Expert or higher ⋅ Senior
Field(s):
Software Engineering
Workplace Type:
Hybrid
Northrop Grumman Aeronautics Systems has an opening for a Senior Principal Systems Modeling & Simulation Engineer to join our team of qualified, diverse individuals within our Systems Engineering organization. This role is located in Rancho Bernardo, CA.
In this role you will support Operations Analysis and should consider yourself a self-starter with a familiarity working in an Integrated Product Team (IPT) construct. Some qualities and experience you will be expected to have include:
A Strong grasp of agile software development methodologies
A Proficiency with Object Oriented languages (C#, C++, Java, etc.) and Windows based development
Demonstrated expertise in the .NET runtime, CLR internals, garbage collection, and JIT compilation
A Proven ability to write highly optimized, performant code and conduct profiling/tuning
An expert use of Visual Studio (debugging, refactoring, performance analysis)
Previous experience building WPF applications using the MVVM pattern; familiarity with MVVM implementation in Blazor
The ability to design re usable UI libraries that span WPF and Blazor
A familiarity with CRUD, DTO, and gRPC service patterns
Significant experience with version control tools (Bitbucket, GitHub, GitLab, Git, TFS) and CI/CD pipelines.
A good knowledge of secure coding standards and relevant defense compliance (NIST, DoD).
Strong problem solving skills; capacity to work independently while adhering to strict timelines.
Roles and Responsibilities include to:
Utilize full life cycle design, implementation, and unit testing of software using C# / .NET (including CLR, garbage collection, JIT compilation).
Leverage core computer science fundamentals—algorithms, data structures, and complexity analysis—to solve logical and mathematical problems.
Develop, profile, and tune high performance, optimized code; conduct runtime analysis and memory usage profiling.
Build and maintain desktop applications with WPF and the MVVM pattern; extend MVVM concepts to modern UI frameworks such as Blazor while preserving a consistent architecture across platforms.
Design and publish re usable UI component libraries that work in both WPF and Blazor environments.
Implement common application patterns (CRUD, DTO design, gRPC services) to enable efficient data exchange.
Use Visual Studio at an expert level (debugging, refactoring, performance profiling, navigating large solutions).
Follow secure coding practices and defense related compliance standards (e.g., NIST, DoD).
Create and maintain technical documentation; translate design decisions for both technical and non technical stakeholders.
Reverse engineer existing code bases to understand architecture and locate critical logic.
Operate within CI/CD pipelines (Git/TFS, Azure DevOps, etc.) and collaborate in version controlled, team based environments.
You will be required to work full-time, on-site at our facility. There is no remote / hybrid / telework available for this position. Travel up to 25% may be required.
Basic Qualifications:
Preferred Qualifications
Current applicable Special Access Program (SAP) clearance.
Experience in at least one of the following domains:
o Mission planning applications
o Systems performance monitoring and analysis
o Modeling or simulation of radars, missiles, aircraft, or satellites
Proven ability to develop and integrate prototype and pre production software for rapid hands on testing.
Experience creating physics based models and simulations using OOP.
Hands on work with Service Oriented Architectures and systems integration projects.
Demonstrated success in a rapid prototyping team environment.
Experience with system of systems modeling tools (AFSIM, Suppressor, Brawler).
Advanced proficiency with CommunityToolkit.Mvvm / MVVMToolkit
Strong communication, interpersonal, and leadership skills, including project/analysis lead experience.
Website: https://northropgrumman.com/
Headquarter Location: Falls Church, Virginia, United States
Employee Count: 10001+
Year Founded: 1994
IPO Status: Public
Last Funding Type: Grant
Industries: Data Integration ⋅ Manufacturing ⋅ Remote Sensing ⋅ Security ⋅ Software