.NET Developer

Description Remote Candidates must be located in these states: Arizona, Connecticut, Massachusetts, Missouri, New Jersey, New York, Florida, Vermont, Virginia, Texas and Wisconsin Our client seeks experienced .NET Developers to support a large-scale modernization initiative replacing legacy mainframe applications with modern .NET-based services and APIs. You will focus on backend development, enterprise integrations, and event-driven applications. You will build scalable services that integrate with internal and third-party systems and collaborate with engineering teams to modernize critical enterprise applications. This is a contract to hire opportunity. Applicants must be willing and able to work on a w2 basis and convert to FTE following contract duration. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance. Rate: $65.00 to $75.00/hr. w2 JN -102026-109023 Responsibilities Design and develop backend services and REST APIs using modern .NET. Build replacement services as part of a legacy mainframe modernization effort. Review existing mainframe code to understand business logic and use it as reference when developing new solutions. Develop event-driven services, consumers, and publishers. Build and support integrations with enterprise and third-party applications. Contribute to finance-related services, APIs, payroll workflows, and data integrations. Work within shared enterprise repositories and established development standards. Collaborate with engineering teams on the modernization of critical enterprise applications. Experience Requirements Strong hands-on experience with .NET/C# development. Experience developing REST APIs and backend services. Strong understanding of enterprise application development. Experience working with integrations between multiple applications or systems. Experience developing and supporting production-grade applications. Ability to understand existing application logic and translate legacy functionality into modern services. Mid-level to senior development experience. Preferred: Kafka, event-driven architecture, event sourcing, messaging architectures, event consumers and publishers, consumer-driven services, third-party integrations, finance or payroll-related applications, integrations with platforms such as Salesforce, Concur, or OneStream, legacy or mainframe modernization initiatives, Apicurio. Interest in AI/LLM is a plus. Education Requirements