Raj H.

I help businesses build AI-powered applications, integrate LLMs and AI Agents, and modernize production systems using Microsoft Foundry, Azure AI, OpenAI, C#, ASP.NET Core, Angular, SQL, AWS, and Azure. With 10+ years of software development experience and 6,500+ hours on Upwork, I combine deep production experience in .NET and cloud applications with modern Generative AI, LLM, and AI Agent technologies. My strength is not just integrating an AI model into an application. I understand how to take AI from an idea to a working production solution — connecting agents and LLMs with APIs, databases, documents, business workflows, authentication, cloud services, and existing enterprise applications. I'm particularly valuable when you need a developer who can understand the entire technology stack — from AI and business logic to backend APIs, databases, frontend, cloud infrastructure, and production deployment. AI & Microsoft Foundry I can help you design and integrate AI capabilities into new or existing applications using: Microsoft Foundry Microsoft Foundry Agent Service AI Agents and multi-agent architectures Large Language Models (LLMs) Azure AI services Azure OpenAI / OpenAI APIs Retrieval-Augmented Generation (RAG) AI-powered search and knowledge assistants Document processing and information extraction AI chat assistants Function/tool calling Agent-to-API and agent-to-business-system integration AI workflow automation Intelligent business process automation Connecting AI agents with databases, APIs, and enterprise systems Integrating AI into existing .NET applications .NET & Backend Development C# / .NET / ASP.NET Core RESTful Web APIs Entity Framework Core Authentication & Authorization Third-party API integrations Background services SignalR and real-time applications Application architecture and modernization Enterprise application development Full-Stack Development Angular + ASP.NET Core TypeScript Business applications and SaaS platforms Admin dashboards Data-driven applications Complex forms and workflows Frontend/backend integration Responsive web applications Database & Performance SQL Server PostgreSQL Database design and optimization EF Core query optimization API performance tuning Production troubleshooting Application bottleneck identification and optimization Cloud & Deployment Microsoft Azure AWS .NET application deployment Linux / Nginx Cloud migration Production troubleshooting Application monitoring and optimization Cloud-based AI application deployment What I Can Build ✓ AI-powered business applications ✓ AI Agents using Microsoft Foundry ✓ LLM-powered chat and knowledge assistants ✓ RAG-based applications connected to business data and documents ✓ AI-powered search and information retrieval ✓ AI document processing and data extraction solutions ✓ AI agents integrated with REST APIs and business systems ✓ Automated AI-driven business workflows ✓ New ASP.NET Core applications from the ground up ✓ Angular + ASP.NET Core applications ✓ Modernization of legacy .NET applications ✓ REST API development and troubleshooting ✓ Performance optimization for APIs, EF Core, and databases ✓ AWS/Azure deployment and production troubleshooting ✓ Integration of AI capabilities into existing enterprise applications ✓ Long-term development and maintenance of existing systems Why Work With Me? 10+ years of professional software development experience 6,500+ hours on Upwork 100% Job Success Score Top Rated Plus freelancer Strong production experience with .NET and ASP.NET Core Hands-on experience with Microsoft Foundry, AI Agents, LLMs, and Azure AI Strong AWS and Microsoft Azure experience Full-stack understanding from database to backend, frontend, AI, and deployment Comfortable working with existing and legacy applications Experience integrating AI into real-world business applications Practical understanding of AI Agent architecture and LLM integration Focus on clean, maintainable, scalable, production-ready solutions My Approach I don't believe in adding AI simply because it is the latest technology. I first understand the business problem, existing architecture, data, workflows, and technical constraints. Then I determine where AI, LLMs, or Agents can provide genuine value. For existing applications, I prefer to enhance what already works rather than rewrite everything unnecessarily. Whether you need to build an AI-powered application from scratch, introduce AI Agents into an existing .NET system, integrate Microsoft Foundry, or modernize a legacy application, I can work across the complete solution. If you're looking for a developer who combines strong .NET engineering experience with modern AI, LLM, and Microsoft Foundry capabilities