Senior .NET Developer – Azure & AI Solutions

ASSYST is seeking a Senior .NET Developer – Azure & AI Solutions to support our client in designing, developing, modernizing, and maintaining enterprise applications using Microsoft Azure and the latest .NET technologies. The ideal candidate will have extensive experience with .NET 8/.NET Core, C#, cloud-native application development, and Microsoft Azure, along with hands-on expertise in implementing AI-powered solutions using Azure OpenAI, Azure AI Foundry, AI Agents, and Retrieval-Augmented Generation (RAG).

This role requires a highly skilled professional who can modernize legacy .NET applications, design scalable cloud-native solutions, and collaborate with cross-functional teams to deliver secure, high-performing applications that leverage modern AI capabilities.

Roles & Responsibilities

• Design, develop, modernize, and support enterprise applications using C#, ASP.NET Core, and .NET 8/.NET Core.
• Modernize legacy .NET Framework and Web Forms applications into modern .NET 8 and cloud-native architectures.
• Design and implement scalable cloud-native solutions utilizing Microsoft Azure services.
• Develop and integrate Azure services, including Azure App Services, Azure Functions, API Management, Service Bus, Azure SQL, Azure OpenAI, and Azure AI Foundry.
• Build and implement AI-powered solutions using AI Agents, Retrieval-Augmented Generation (RAG), prompt engineering techniques, and GitHub Copilot for Developers.
• Develop secure microservices and RESTful APIs while implementing modern API security practices and Microsoft Entra ID/B2C authentication.
• Design and maintain CI/CD pipelines using GitHub or Azure DevOps.
• Utilize containerization technologies to support cloud-native application deployment.
• Work closely with client stakeholders and technical teams to evaluate business requirements and recommend scalable technical solutions.
• Conduct feasibility studies, solution assessments, and gap analyses to support application modernization initiatives.
• Analyze complex technical challenges and provide effective, innovative solutions.
• Communicate technical concepts clearly to project teams, stakeholders, and leadership while collaborating effectively across cross-functional teams.

Required Skills

Technical Skills

• Expert-level experience with C#, ASP.NET Core, .NET Core/.NET 8, and cloud-native application development.
• Strong experience developing applications on Microsoft Azure.
• Hands-on experience with:
  • Azure App Services
  • Azure Functions
  • Azure API Management
  • Azure Service Bus
  • Azure SQL
  • Azure OpenAI
  • Azure AI Foundry
• Experience implementing AI Agents, Retrieval-Augmented Generation (RAG), prompt engineering, and GitHub Copilot for Developers.
• Strong experience developing microservices, secure REST APIs, and implementing API security.
• Experience with Microsoft Entra ID/B2C authentication.
• Experience modernizing legacy .NET Framework/Web Forms applications to .NET 8 and cloud-native architectures.
• Proficiency with GitHub or Azure DevOps, CI/CD pipelines, and containerization technologies.
• Solid understanding of SQL, Cosmos DB, and modern UI frameworks such as Blazor, React, or Angular.

Analytical & Problem-Solving Skills

• Exceptional analytical and problem-solving abilities.
• Experience conducting feasibility studies and solution assessments.
• Expertise in performing gap analyses and recommending practical technical solutions.
• Ability to evaluate complex technical requirements and provide actionable recommendations.

ASSYST is an Equal Opportunity Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, disability, military status, national origin or any other characteristic protected under federal, state, or applicable local law.