Parminder S.

**12+ Years of Software Engineering Experience | 100+ Upwork Projects | $90K+ Earned | 100% Job Success | Top Rated** I build and modernize **ASP.NET Core applications, SaaS platforms, APIs, and enterprise systems**, and integrate practical AI capabilities such as **OpenAI, Azure OpenAI, RAG, AI assistants, intelligent automation, and AI-powered search**. If you have an existing .NET application that needs AI, a legacy system that needs modernization, or a new SaaS product that needs to be built from the ground up, I can take ownership from **architecture and development through integration, deployment, and production support**. My strength is combining **senior .NET engineering with practical AI integration**, allowing businesses to add modern AI capabilities to existing applications without rebuilding their entire technology stack. ## What I Can Help You Build ✅ AI-Powered SaaS Applications ✅ AI/LLM Integration into Existing Applications ✅ RAG & Knowledge-Based AI Applications ✅ AI Automation & Intelligent Workflows ✅ AI Chatbots & Business Assistants ✅ AI APIs & Python AI Services ✅ Custom Web & Enterprise Applications ✅ SaaS Platforms & Multi-Tenant Systems ✅ REST & GraphQL APIs ✅ Microservices & Distributed Systems ✅ Legacy .NET Application Modernization ✅ Cloud-Ready Applications ✅ Data Processing & Reporting Platforms ✅ Music Distribution & Royalty Platforms ✅ DDEX / DSP Integrations ✅ Payment & Third-Party API Integrations ## AI & Generative AI I focus on **applied AI engineering** — integrating AI into real production applications rather than building isolated demos. **AI & LLM** * OpenAI API * Azure OpenAI * ChatGPT integrations * LLM-powered applications * AI assistants & chatbots * Prompt engineering * Structured AI outputs * Function/tool calling * AI workflow automation * AI agents * RAG applications * Semantic search * Embeddings * Vector databases **Python & AI** * Python * FastAPI * Flask * Pandas * NumPy * Scikit-learn * Data processing * Machine Learning integrations * NLP * AI automation * AI microservices **AI Application Architecture** * .NET + OpenAI integrations * ASP.NET Core AI APIs * Python AI services with .NET applications * RAG pipelines * Document intelligence * Knowledge bases * AI-powered search * AI-powered reporting * Intelligent data processing * AI-assisted business automation ## Backend & .NET Engineering **Microsoft .NET Ecosystem** * C# * .NET / .NET Core * ASP.NET Core * Web API * Entity Framework Core * Dapper * LINQ * SignalR * Background Services * Hangfire * Authentication & Authorization **Architecture** * Clean Architecture * SOLID Principles * Repository Pattern * CQRS * Dependency Injection * Domain-Driven Design * Microservices * Event-Driven Architecture * REST APIs * GraphQL * gRPC I focus on writing **clean, maintainable, testable and scalable code**, rather than simply making an application work. ## Frontend Development **Angular** * Angular * TypeScript * RxJS * NgRx * Angular Material * PrimeNG * Reactive Forms * REST API integration * Responsive applications * Dashboard development **React** * React.js * React Native * JavaScript / TypeScript * Redux * API integration * Responsive UI * Mobile applications *Kentico **Microsoft** * Blazor * Razor * ASP.NET MVC ## Databases & Data * SQL Server * PostgreSQL * MySQL * MongoDB * Entity Framework * Dapper * Redis * Database optimization * Stored Procedures * Complex SQL queries * Reporting systems * Data processing * ETL / data ingestion ## Music Technology & DDEX One of my specialized areas is **music technology and digital music distribution**. I have experience working with: * DDEX * ERN * Music metadata * Music distribution platforms * DSP integrations * Royalty systems * Reporting systems * Sales & usage reporting * Content delivery workflows * Metadata processing * Automated ingestion pipelines * Spotify integrations * YouTube integrations * Apple Music reporting * Music catalog management I can build and integrate **complete music distribution, royalty, reporting, and metadata processing platforms**. ## Cloud, DevOps & Infrastructure * Microsoft Azure * Azure App Services * Azure Functions * Azure Storage * Azure SQL * Azure DevOps * Google Cloud * Docker * Linux * IIS * Nginx * CI/CD * Performance optimization # Why Clients Hire Me ✔ **12+ years of software engineering experience** ✔ **100+ completed Upwork projects** ✔ **$90K+ earned on Upwork** ✔ **100% Job Success Score** ✔ **Top Rated Upwork freelancer** Let's Build Something That Works Whether you need to build a new SaaS product, modernize an ASP.NET application, add AI to an existing system, develop APIs, automate business workflows, or build a specialized music technology platform, I can help. Send me your requirements, existing architecture, or current application. I'll help you choose a practical technical approach and take it from idea → architecture → development → integration → production.