Remote Lead .NET Developer — Modernization & APIs

Eliassen Group; Boise (ID); Remote; USD 96,000 - 107,000; Full time

Job summary

Eliassen Group is seeking a Lead .NET Developer for a fully remote contract-to-hire role. You will drive backend service design and modernize legacy mainframe systems into scalable .NET solutions.

You will mentor engineers, guide architecture decisions, and collaborate with cross-functional teams to deliver production-grade applications in an event-driven environment. This position is remote with W2 hourly compensation.

Qualifications

• Hands-on .NET/C# development experience.
• REST APIs and backend services design and implementation.
• Kafka and event-driven architecture experience.
• Experience with schema tooling such as Apicurio.
• Strong background in enterprise application development.
• Proven ability to design integrations across multiple systems.
• Experience building and supporting production-grade applications.
• Ability to analyze legacy applications and translate logic to modern services.
• Demonstrated technical leadership, architecture guidance, or mentoring.

Responsibilities

• Lead design and development of backend services and REST APIs using .NET/C#.
• Modernize legacy mainframe applications into modern .NET services.
• Translate mainframe logic into scalable, maintainable solutions.
• Design and build event-driven services, consumers, and publishers.
• Lead integrations across internal and third‑party platforms.
• Provide technical guidance and establish development best practices.
• Partner with engineering teams on architecture and implementation.
• Support finance, payroll, data, and other critical integrations.
• Mentor developers and provide technical direction during modernization.

Skills

.NET/C# development

REST APIs

Kafka event-driven

Apicurio tooling

Enterprise apps

System integrations

Production-grade apps

Legacy modernization

Technical leadership

Job description

Eliassen Group is seeking a Lead .NET Developer for a fully remote contract-to-hire role. You will drive backend service design and modernize legacy mainframe systems into scalable .NET solutions.

You will mentor engineers, guide architecture decisions, and collaborate with cross-functional teams to deliver production-grade applications in an event-driven environment. This position is remote with W2 hourly compensation.