Rajinder K.

# .NET Full Stack Developer | Software Architect | ASP.NET Core | React | Angular | Next.js | Azure | AWS I'm a **.NET Full Stack Developer and Software Architect** with **8+ years of experience** building secure, scalable web applications using **ASP.NET Core, C#, React, Angular, TypeScript, SQL Server, PostgreSQL, Prisma ORM, Prisma Postgres, Azure, AWS, Docker, and modern JavaScript frameworks**. Over the course of **35+ successful projects**, I've delivered production-ready solutions across **defence, renewable energy, fintech, healthcare, e-commerce, logistics, and enterprise SaaS**. My focus is on building software that solves real business problems while remaining maintainable, scalable, and high performing. ## What I Can Help You Build * ASP.NET Core & .NET 8 applications * REST APIs & Microservices * React, Angular, MERN, Next.js & TypeScript front-end development * SQL Server, PostgreSQL, MongoDB, Supabase, Prisma ORM & Prisma Postgres * Entity Framework Core & Prisma ORM * Stripe and third-party API integrations * Azure & AWS cloud solutions * Docker, Kubernetes & CI/CD pipelines * Performance optimization and legacy application modernization * Multi-tenant SaaS platforms * Authentication & Security (JWT, OAuth) * Real-time applications using SignalR ## Recent Results * Built a renewable energy monitoring platform managing thousands of wind and solar installations, reducing critical downtime by **40%** through real-time analytics. * Developed a Loan Origination System that reduced loan processing time by **60%** through workflow automation. * Modernized a defence asset management platform supporting **36** high-availability naval fleet assets, reducing manual reporting by **70%**. * Built a Shopify fulfillment platform that reduced packing errors to virtually zero while improving order processing speed by **35%**. * Delivered a fleet management system managing **1,250+ assets** and **845 active rentals**, saving operations teams **10+ hours every week**. * Improved page load times for a large US e-commerce platform from **8 seconds to 2 seconds**, contributing to a **2× increase in sales**. * Optimized enterprise SQL queries, reducing execution times by **60–80%**. ## Technical Expertise ### Backend * ASP.NET Core * ASP.NET MVC * C# * Entity Framework Core * Prisma ORM * Web APIs * Microservices ### Frontend * React * Angular * MERN * Next.js * TypeScript * JavaScript ### Databases * SQL Server * PostgreSQL * Prisma Postgres * MongoDB * Supabase ### Cloud & DevOps * Azure * AWS * Docker * Kubernetes * CI/CD ### Integrations * Stripe * Payment gateways * CRM integrations * ERP integrations * Third-party APIs * SignalR I also leverage modern AI development tools such as **Cursor, ChatGPT, and Antigravity** to accelerate development, improve code quality, automate repetitive tasks, and deliver projects more efficiently without compromising maintainability. ## Why Clients Work With Me I believe successful software starts with understanding the business—not just writing code. Before implementation, I focus on requirements, architecture, scalability, and long-term maintainability to ensure solutions continue to perform as products grow. I've delivered solutions for clients across the **USA, UK, Germany, Australia, Norway, Denmark, and the Netherlands**, helping organizations modernize legacy systems, build enterprise SaaS platforms, and launch new digital products. If you're looking for a developer who can take ownership of your project—from architecture and planning to deployment and long-term support—I'd be happy to discuss how I can help.