Senior .NET Apps: Release & Production Support Lead

Cardinal Integrated Technologies Inc; Lisle (IL); On-site; USD 83,000 - 131,000; Full time

Job summary

Cardinal Integrated Technologies Inc in Lisle, IL seeks a hands-on Senior .NET Application Developer to support and enhance enterprise console and web apps. Responsibilities span maintenance, enhancements, production support, release management, hosting, certificate and database support, and customer collaboration.

The ideal candidate has 5–8 years of experience with React, C#, VB.NET, ASP.NET MVC, .NET Core, Web APIs, and SQL Server, plus strong debugging and communication skills.

Qualifications

• Bachelor's degree in computer science or related field, or equivalent experience.
• 5–8 years of software development, maintenance, and production support.
• Hands-on with React, C#, VB.NET, ASP.NET MVC, .NET Core, Web APIs, SQL Server.
• Ability to configure and troubleshoot React, ASP.NET MVC, .NET Core, Web API apps.
• Experience debugging, root-cause analysis, and resolving complex issues.
• Experience with REST APIs, JSON/XML, and Azure DevOps workflows.

Responsibilities

• Maintain, troubleshoot, and enhance apps using React, C#, VB.NET, ASP.NET MVC, .NET Core, Web APIs, SQL Server.
• Deploy and troubleshoot across Dev, QA, Production environments.
• Support Angular app configuration as needed.
• Perform code-level debugging and root-cause analysis for issues.
• Implement fixes, improvements, and release-ready changes.
• Collaborate with customers and teams to gather requirements and updates.
• Review PRs in Azure DevOps and manage builds and deployments.
• Prepare and coordinate database deployments and backups.

Skills

React experience

C# .NET

VB.NET

SQL Server

Azure DevOps

IIS / Windows Server

REST APIs

Angular (pref)

Education

Bachelor's degree

Tools

C#

VB.NET

ASP.NET MVC

NET Core

Web API

SQL Server

Azure DevOps

IIS

Windows Server

Postman

Angular

Job description

Cardinal Integrated Technologies Inc in Lisle, IL seeks a hands-on Senior .NET Application Developer to support and enhance enterprise console and web apps. Responsibilities span maintenance, enhancements, production support, release management, hosting, certificate and database support, and customer collaboration.

The ideal candidate has 5–8 years of experience with React, C#, VB.NET, ASP.NET MVC, .NET Core, Web APIs, and SQL Server, plus strong debugging and communication skills.