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BAE Systems USA Logo

Sr. Principal Software Engineer

BAE Systems USA

$120,000 - $204,000
Dec 18, 2025
North Charleston, SC, US
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BAE Systems is seeking an experienced developer to contribute to the BAE Systems Fuels maintenance applications, supporting DLA's fuel automation equipment program

Requirements

  • Strong C-Sharp and .NET development skills (.NET Core/.NET 5+ experience)
  • Solid understanding of MVVM pattern and data binding
  • Experience with Entity Framework Core or similar ORM
  • Proficiency with relational database design and SQL
  • Experience with dependency injection containers (Autofac, Microsoft.Extensions.DI, etc.)
  • Understanding of async/await patterns and concurrency
  • Git workflow experience (branching, merging, pull requests)

Responsibilities

  • Design and implement workflow state machine for form approval lifecycle
  • Build deliverable automation system (PDF packaging, CI number assignment)
  • Implement complex repository methods with Entity Framework Core
  • Design and implement service layer components (business logic)
  • Create reusable WPF controls and MVVM components
  • Optimize database queries and resolve performance bottlenecks
  • Implement security features (role-based access control, audit logging)

Other

  • Ability to work independently without supervision
  • Strong problem-solving skills for complex technical challenges
  • Mentoring and knowledge-sharing with junior developers
  • Clear technical communication (architecture discussions, code reviews)
  • Active Secret clearance and ability to obtain and maintain a Top Secret security clearance