Job Summary:

The Senior .NET / SQL Server Developer will support the development, modernization, and enhancement of enterprise applications within a payroll-focused environment. This hands-on role focuses on C#, modern .NET, Microsoft SQL Server, backend application development, database development, and modernization of business-critical applications. The developer will collaborate with technical and business teams throughout the software development lifecycle to deliver scalable, maintainable, and high-performing solutions.

Key Responsibilities
• Design, develop, test, enhance, and maintain enterprise applications using C# and modern .NET.
• Design and develop scalable backend application components, services, and business logic.
• Develop, optimize, and maintain Microsoft SQL Server databases, complex queries, stored procedures, and database objects.
• Perform SQL query optimization, database performance tuning, and troubleshooting.
• Support modernization and migration of legacy applications to modern .NET-based architectures.
• Analyze existing application functionality and business logic to support modernization initiatives.
• Participate in all phases of the software development lifecycle, including requirements gathering, design, development, testing, deployment, and production support.
• Troubleshoot complex application and database issues and implement effective long-term solutions.
• Collaborate with business analysts, developers, database teams, and other technical stakeholders to develop scalable and maintainable solutions.
• Support data integration between enterprise applications and systems.
• Write clean, efficient, maintainable, and reusable code while following established development standards and best practices.
• Participate in code reviews and contribute to continuous improvements in application architecture and development practices.
• Support applications deployed within containerized environments, including Kubernetes, where applicable.
• Contribute to frontend development using React as needed.

Required Qualifications
• 10+ years of hands-on software development experience in enterprise application environments.
• Strong hands-on development experience with C# and modern .NET, including .NET Core and .NET 8/10.
• Extensive experience with Microsoft SQL Server and T-SQL.
• Strong SQL development skills, including complex query development, stored procedure development, query optimization, database design, performance tuning, and database troubleshooting.
• Strong experience designing and developing backend applications, services, and business logic.
• Experience supporting and maintaining large-scale, business-critical enterprise applications.
• Experience troubleshooting application and database issues in development and production environments.
• Strong understanding of software development principles, design patterns, and coding best practices.
• Experience working throughout the full software development lifecycle (SDLC).
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent communication and collaboration skills.

Preferred Qualifications
• Experience supporting payroll, human capital management (HCM), financial services, or other complex enterprise business applications.
• Experience with legacy application modernization or system migration initiatives, including migration from mainframe or COBOL-based applications to modern .NET architectures.
• Experience with React or other modern JavaScript frontend frameworks.
• Experience working with Kubernetes and containerized application environments.
• Experience with data integration and enterprise system interfaces.
• Experience developing or consuming REST APIs and web services.
• Experience working within Agile/Scrum development environments.
• Ability to collaborate effectively across technical and business teams.