.NET Developer

Salary: $135,200 - 156,000 per year Requirements: Strong hands-on experience with .NET and C# development. Experience building REST APIs and backend services. Strong understanding of enterprise application development. Experience integrating multiple applications or systems. Experience developing and supporting production-grade applications. Ability to interpret existing application logic and translate legacy functionality into modern services. Mid-level to senior development experience. Candidates must be located in Arizona, Connecticut, Massachusetts, Missouri, New Jersey, New York, Florida, Vermont, Virginia, Texas, or Wisconsin. Applicants must be willing and able to work on a W-2 basis and convert to full-time employment after the contract period. Preferred: Kafka, event-driven architecture, event sourcing, messaging architectures, event consumers and publishers, consumer-driven services, third-party integrations, finance or payroll applications, integrations with Salesforce, Concur, or OneStream, legacy or mainframe modernization, or Apicurio. Interest in AI/LLM is a plus. Responsibilities: Design and develop backend services and REST APIs using modern .NET. Create replacement services for a legacy mainframe modernization initiative. Review existing mainframe code to understand business logic and guide development of 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 in shared enterprise repositories and follow established development standards. Collaborate with engineering teams to modernize critical enterprise applications. Technologies: AI Backend C# Support Kafka LLM REST Salesforce ASP.NET More: We are recruiting experienced .NET Developers for a remote, contract-to-hire opportunity supporting a large-scale modernization initiative. The role focuses on backend development, enterprise integrations, and event-driven applications that connect internal and third-party systems. The W-2 rate is $65–$75 per hour. Eligible W-2 consultants regularly scheduled for at least 30 hours per week may receive medical, dental, and vision coverage, pre-tax accounts, voluntary benefits including life and disability insurance, a 401(k) with company match, and sick time where required by law. We are Eliassen Group, a strategic consulting firm delivering technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined specialized expertise and talent to help clients achieve meaningful outcomes, and we are committed to a diverse and inclusive workplace. last updated 42 week of 2026