Senior .NET Backend Developer – GC/USC

Role: Senior .NET Backend Developer – GC/USC

Location: Dallas, TX (Onsite)

Long Term Contract

Job description:

We are looking for a skilled Senior .NET Backend Developer with strong SQL expertise and experience working on application modernization initiatives. The role requires a solid understanding of existing business logic implemented in complex SQL queries and the ability to rebuild, optimize, and implement that logic within a modern .NET backend architecture.

Key Responsibilities:

·        Analyze and understand existing business logic embedded in SQL queries, stored procedures, and database objects.

·        Design and develop backend components using .NET / .NET Core, translating database-driven logic into scalable application-layer services.

·        Participate in application modernization projects, including migration from legacy systems to modern, service-oriented or API-driven architectures.

·        Optimize SQL queries for performance, scalability, and maintainability.

·        Collaborate with business stakeholders, architects, and frontend teams to ensure accurate interpretation of business rules.

·        Develop and maintain RESTful APIs and backend services to support application functionality.

·        Ensure high-quality code through unit testing, code reviews, and adherence to best practices.

·        Support production issues, root cause analysis, and performance tuning as needed.

Required Skills:

·        10+ years of experience in .NET / C# (.NET Core preferred) for backend development.

·        Excellent SQL knowledge, including complex queries, joins, CTEs, stored procedures, and performance tuning.

·        Hands-on experience in application or database modernization projects.

·        Ability to reverse-engineer business logic from legacy SQL-based implementations.

·        Experience working with relational databases such as SQL Server (preferred).

·        Understanding of layered architecture, service-oriented design, and API development.

·        Familiarity with source control systems (Git, Azure DevOps, etc.).