Senior Full Stack .NET Developer Generative AI

At RPL International , we're looking for a Senior Full Stack .NET Developer to join an exciting technology project with our client in Doral, Florida .

We're seeking an experienced developer with strong expertise in C#/.NET, Angular or React, Microsoft Azure, and Generative AI , capable of building scalable enterprise applications and integrating AI-powered solutions.

Position Details

• Location: Doral, Florida, USA.
• Work Model: 100% On-site (5 days per week).
• Compensation: $50–$55 USD/hour (DOE).
• Contract Type: 6-month Contract-to-Hire.
• Schedule: Monday–Friday, on-site (specific hours to be confirmed).
• Seniority: Senior Level.

Key Responsibilities

• Design, develop, and maintain scalable full-stack applications using C#, .NET, and Angular or React .
• Build and integrate RESTful APIs and enterprise backend services using ASP.NET Core.
• Develop and deploy cloud-based solutions on Microsoft Azure.
• Integrate Large Language Models (LLMs) into enterprise applications using APIs such as Azure OpenAI or Claude.
• Implement AI-powered features, prompt engineering techniques, and Retrieval-Augmented Generation (RAG) solutions.
• Collaborate with cross-functional teams to deliver secure, maintainable, and high-performance applications.

Required Qualifications

• 5+ years of hands-on experience with C# and .NET (6/7/8) .
• 3+ years of experience with Angular or React and TypeScript .
• Strong experience developing ASP.NET Core APIs, RESTful services, and backend integrations .
• Hands-on experience deploying applications to Microsoft Azure , including App Services, Azure Kubernetes Service (AKS), or Azure Functions.
• Proven experience integrating Generative AI/LLMs into enterprise applications through APIs (Azure OpenAI, Claude, or similar).
• Experience with Azure AI Foundry, Prompt Engineering, and RAG architectures .
• Familiarity with Entity Framework Core, Dapper, SOLID principles, and design patterns.
• Experience with Azure DevOps, CI/CD pipelines, Git, and Agile methodologies.

Nice to Have

• Semantic Kernel, LangChain, or AI agent orchestration.
• Azure AI Search, vector databases, or Cosmos DB.
• GitHub Copilot, Claude Code, Cursor, or other AI-assisted development tools.
• Infrastructure as Code (Terraform/Bicep).
• Microsoft Copilot Studio, MCP, or Azure AI certifications.

Interested in This Opportunity?

If you're a passionate Senior .NET Developer who enjoys building modern cloud applications and leveraging Generative AI, we'd love to connect!