Remote Lead .NET Developer — Enterprise API & Kafka

Eliassen Group; Trenton (NJ); Remote; USD 96,000 - 107,000; Full time

Benefits offered by this job

Medical benefits

401(k) with match

Referral bonus $1,000

Job summary

Eliassen Group is seeking a Lead .NET Developer to drive a large-scale modernization initiative, replacing legacy mainframe applications with modern .NET services and APIs. This hands-on leadership role requires guiding backend development, solution design, and enterprise transitions to event-driven architectures.

The role emphasizes technical leadership, architecture guidance, and mentoring while collaborating with engineering teams to deliver scalable, production-grade solutions.

Qualifications

• Hands-on .NET/C# development experience.
• Advanced REST API and backend services experience.
• Strong experience with Kafka and event-driven architecture.
• Experience with schema design tools such as Apicurio.
• Enterprise application development background.
• Proven ability to design integrations across multiple systems.
• Experience providing technical leadership, architecture guidance, or mentoring.

Responsibilities

• Lead backend design and development of services and REST APIs using .NET/C#.
• Drive modernization of legacy mainframe applications into modern .NET services.
• Translate legacy business logic into scalable, maintainable solutions.
• Design and build event-driven services, consumers, and publishers.
• Lead integrations across internal and third-party enterprise 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 architecture

Legacy modernization

System integration

Technical leadership

Code quality

Tools

Apicurio

Job description

Eliassen Group is seeking a Lead .NET Developer to drive a large-scale modernization initiative, replacing legacy mainframe applications with modern .NET services and APIs. This hands-on leadership role requires guiding backend development, solution design, and enterprise transitions to event-driven architectures.

The role emphasizes technical leadership, architecture guidance, and mentoring while collaborating with engineering teams to deliver scalable, production-grade solutions.