Senior .Net Developer

Senior .NET Developer – Application Support, Maintenance & DevelopmentContract Start:
January 2027Contract End:
March 31, 2028Extension:
Potential for up to four additional one-year extensionsWork Schedule:
Monday to Friday, 8:00 AM – 5:00 PM CSTPosition Overview
Our client is seeking an experienced Senior .NET Developer to join its team. The successful candidate will be responsible for supporting, maintaining, enhancing and developing enterprise business applications and integrations.Working closely with IT Operations, Enterprise Security, Solutions and Architecture, and Project Delivery teams, the resource will contribute to application development, production support, system maintenance, technical documentation and ongoing enhancements.The ideal candidate will bring strong hands‑on experience in C#/.NET development, modern Web API development, Angular, SQL Server and enterprise application integrations, along with the ability to support business‑critical applications in a collaborative environment.Key Responsibilities
Develop, maintain and enhance enterprise applications using C#/.NET and Angular.Design, develop and integrate modern Web APIs using REST, XML and JSON.Develop and maintain web applications using Angular, Node.Js, HTML, CSS and TypeScript.Perform database scripting, query development and stored procedure maintenance using Microsoft SQL Server.Troubleshoot and resolve production application issues, implement changes and deliver enhancements.Coordinate ongoing application and database maintenance activities, including upgrades.Configure, deploy and support applications within Internet Information Services (IIS).Participate in code reviews, testing, debugging and performance optimization.Develop and maintain technical documentation, application diagrams and support procedures.Collaborate with project teams and support the operational acceptance and transition of completed projects into ongoing operations.Work with Azure, Azure DevOps and CI/CD pipelines to support application development and deployment.Support integrations with enterprise systems and platforms.Mandatory Qualifications and Experience
Candidates must demonstrate a minimum of
five (5) years of experience
in each of the following areas:Application development using
C# and .NET .Integrating with Web APIs, including
REST, XML and JSON .Developing modern Web APIs.Developing web applications using
Angular, Node.Js, HTML, CSS and TypeScript .Database scripting using
Microsoft SQL Server .Preferred Technical Skills and Qualifications
Development & Technical Tools
Microsoft Azure administration, Azure DevOps and CI/CD pipelines.Microsoft Graph.Postman.Visual Studio or Visual Studio Code, including testing tools.PowerShell scripting.SQL Server Reporting Services (SSRS).Oracle SQL Developer and Oracle database scripting, including queries, stored procedures and data modelling.Windows Server.Internet Information Services (IIS) application configuration and deployment.Active Directory integrations.Jira administration and integrations.Workday integrations.Load testing and performance tuning.Enterprise Application Integrations
Minimum of three (3) years of experience with IFS integrations.AI Development Experience
Minimum of two (2) years of experience in each of the following:Using AI-assisted software development tools such as GitHub Copilot or equivalent, including agentic capabilities for implementing, testing, debugging, refactoring and reviewing code.Designing, developing and supporting applications that integrate AI services through APIs and SDKs, including authentication, model response handling, testing and error handling.Using Azure AI Foundry or a comparable AI development platform.Education
A recognized bachelor's degree or technical diploma in Computer Science, Information Systems, Engineering or a related discipline is preferred.
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