Senior .NET Backend Engineer — Scale Digital Transactions

Brooksource; Grand Rapids (MI); On-site; USD 120,000 - 180,000; Full time

Job summary

Brooksource in Grand Rapids, MI, seeks a Senior Backend Engineer to design and build scalable backend services that power digital receipt experiences integrated with POS platforms. You will work with a small, expert team to deliver reliable APIs and evolving architectures.

The role emphasizes performance in high-transaction environments, full software lifecycle, and close collaboration with product teams. Ideal candidates have deep .NET/C# backend experience, REST API design skills, and a

Qualifications

• 5–10 years of professional software development experience.
• Strong .NET/C# backend development experience.
• Experience designing REST APIs and distributed services.

Responsibilities

• Design and build scalable backend services using .NET/C#.
• Develop and maintain RESTful APIs powering digital receipts.
• Integrate services with POS and transaction systems.
• Contribute to architecture decisions and system design.
• Participate in full software lifecycle: design, test, and deploy.
• Ensure performance and reliability in high-transaction environments.

Skills

Distributed systems

System design

Problem solving

Debugging

Collaboration

Tools

.NET / C#

REST APIs

POS integration

Distributed services design

Job description

Brooksource in Grand Rapids, MI, seeks a Senior Backend Engineer to design and build scalable backend services that power digital receipt experiences integrated with POS platforms. You will work with a small, expert team to deliver reliable APIs and evolving architectures.

The role emphasizes performance in high-transaction environments, full software lifecycle, and close collaboration with product teams. Ideal candidates have deep .NET/C# backend experience, REST API design skills, and a