Kforce has a client in Doral, FL that is seeking a highly experienced and motivated Senior .NET API Developer. This role is critical to the success of our portfolio delivery initiatives, focusing on building scalable, secure, and high-performing APIs that power our guest and crew experiences. You will work closely with cross-functional teams to deliver enterprise-grade solutions that align with our strategic goals. Key Responsibilities: * Design, develop, and maintain RESTful APIs using ASP.NET Core/.NET 6+ * Collaborate with product owners, architects, and other developers to translate business requirements into technical solutions * Ensure high performance, scalability, and reliability of backend services * Implement secure authentication and authorization mechanisms (OAuth2, JWT) * Conduct code reviews and enforce best practices in coding standards and architecture * Troubleshoot and resolve complex technical issues across environments * Participate in Agile ceremonies and contribute to sprint planning and delivery * Integrate APIs with internal systems and third-party services * Integrate with third-party APIs and services, ensuring robust error handling and data consistency * Manage API versioning strategies to support backward compatibility and smooth transitions * Implement structured logging using SEQ and other observability tools * Participate in Agile ceremonies and contribute to sprint planning and delivery