Remote .NET Backend Engineer — Modernization & APIs

Eliassen Group; Providence (RI); Remote; USD 90,000 - 103,000; Full time

Job summary

Eliassen Group is seeking a .NET Developer for a remote contract-to-hire engagement. The role focuses on backend services, REST APIs, and modernizing legacy mainframe systems into scalable .NET offerings.

You will work across enterprise integrations, event-driven architectures, and cross-team collaborations to deliver production-grade solutions. The position supports W2 benefits and requires eligibility to work in the United States.

Qualifications

• Strong hands-on experience with .NET/C# development.

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.

Skills

NET/C# development

REST APIs

Event-driven architecture

Enterprise integration

Production-grade apps

Kafka

Apicurio

Salesforce integration

Tools

Kafka

Apicurio

Salesforce

Concur

OneStream

Job description

Eliassen Group is seeking a .NET Developer for a remote contract-to-hire engagement. The role focuses on backend services, REST APIs, and modernizing legacy mainframe systems into scalable .NET offerings.

You will work across enterprise integrations, event-driven architectures, and cross-team collaborations to deliver production-grade solutions. The position supports W2 benefits and requires eligibility to work in the United States.