Senior .NET Integration Engineer - POS Data & APIs

Kitestring Technical Services; Des Moines (IA); On-site; USD 80,000 - 100,000; Full time

Job summary

A technology consulting firm in Des Moines is seeking a .NET Integration Engineer to support backend integration development for modernization of a POS ecosystem. The role involves designing and maintaining backend services using .NET Core and C#, developing middleware layers for data extraction, and collaborating with teams on retail data management. Candidates should have strong experience in .NET Core, C# backend development, and a solid understanding of SQL and data flows. This position emphasizes clean coding practices and on-site collaboration.

Qualifications

• Strong experience with .NET Core and C# backend development.
• Prior experience building integrations, middleware, or API services.
• Ability to design RESTful services, microservices, or data translation pipelines.
• Experience working with POS systems or retail data flows is highly preferred.
• Solid understanding of SQL, data modeling, and JSON/XML transformations.
• Strong communication skills and ability to work onsite with existing engineering teams.

Responsibilities

• Design, build, and maintain backend services using .NET Core and C#.
• Develop middleware translation layers for extracting data from a new POS system.
• Build scalable integrations, APIs, and data pipelines supporting retail operations.
• Work with architects to design integration patterns and data flows.
• Collaborate with internal teams to troubleshoot and refine POS data extraction and transformation processes.
• Deliver clean, maintainable, and well-documented code.
• Participate in agile ceremonies and cross-functional collaboration.

Skills

.NET Core

C#

APIs

SQL

Data modeling

JSON/XML transformations

Middleware

Communication skills

Tools

Azure

AWS

GCP

Kafka

RabbitMQ

Job description

A technology consulting firm in Des Moines is seeking a .NET Integration Engineer to support backend integration development for modernization of a POS ecosystem. The role involves designing and maintaining backend services using .NET Core and C#, developing middleware layers for data extraction, and collaborating with teams on retail data management. Candidates should have strong experience in .NET Core, C# backend development, and a solid understanding of SQL and data flows. This position emphasizes clean coding practices and on-site collaboration.