.NET Developer (Middleware / Web API / .NET Core / Microservices / AWS)

Confidential

Chicago, Illinois, United States permanent

Posted: April 7, 2026

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Quick Summary

Design, develop, and maintain scalable, secure, and high-performance cloud-native applications with .NET Core and AWS integration.

Required Skills

.NET Development C# Microservices AWS Web API REST API SQL Server Databases Docker Kubernetes

Job Description

Job Summary

We are seeking an experienced .NET Developer to design, develop, and maintain middleware solutions using .NET Core, Web API, and Microservices architecture integrated with AWS cloud services. The role focuses on building scalable, secure, and high-performance cloud-native applications.

Key Responsibilities

• Develop and maintain middleware solutions using .NET Core Web API

• Design and implement Microservices architecture for scalable systems

• Integrate applications with AWS services (EC2, S3, Lambda, RDS, CloudFormation)

• Collaborate with cross-functional teams to deliver business solutions

• Build and optimize SQL Server databases, including performance tuning

• Implement secure APIs (authentication, authorization, RBAC)

• Participate in Agile ceremonies, code reviews, and mentoring

• Develop CI/CD pipelines using Git, Jenkins, or AWS CodePipeline

• Troubleshoot and optimize applications for performance and reliability

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