Senior .NET Engineer

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

Kitestring is a 20+-million-dollar company with 100+ associates and growing. We are a 25 year old start up in Northwest Arkansas. We provide technical expertise to various clients delivering innovations that improve how customers shop and the enterprise operates. At Kitestring Technical Services, our mission is to share our collective knowledge to positively impact our employees, clients, and communities. Our vision is to be the most trusted partner in technology consulting. We believe people enable technology and vice-versa which is why we are in the business of both. We persistently challenge the barriers to diversity, inclusion, and empathetic cooperation.

Our Core Values are Transparency, People Driven, Empowered, Quality focused and socially responsible. Our values direct our company in how we do business and enhance the lives of our employees. Do our values speak to you?

About the Role

Our client is modernizing their POS ecosystem and is seeking .NET Integration Engineers to support backend integration development. These engineers will help build middleware translation layers to extract, transform, and transmit POS data from a new retail POS system into enterprise applications.

Key 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.

Required 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.

Nice to Have

• Experience with event-driven architectures (Kafka, RabbitMQ, etc.).
• Experience with cloud services (Azure, AWS, or GCP).
• Familiarity with new POS system integrations in the retail environment.