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I'm a Senior Unity3D AR/VR/MR Developer with 10+ years of experience in game and app development and 7+ years specializing in immersive XR solutions. Holding a Bachelor’s and Master’s in Computer Science, I’ve published research in 3D reconstruction and computer vision — the foundation of my passion for Augmented and Virtual Reality. I help businesses and startups bring ideas to life in immersive 3D, from VR training simulations and metaverse experiences to AR measurement tools and multiplayer VR apps. 🚀 What I Can Build for You 🔹 AR / VR / MR Development - Custom AR/VR Applications & Games - VR Training & Industrial Simulations - Virtual Product Configurators & Walkthroughs - AR Measurement Tools (LiDAR & marker-based) - Multiplayer VR Experiences & Metaverse Spaces - Location-Based AR Apps - XR Publishing & Optimization for major stores 🧩 AR/VR SDK Expertise - Unity3D XR Tools: XR Interaction Toolkit, OpenXR, UltimateXR, VRIF - AR SDKs: AR Foundation, ARKit, ARCore, Vuforia, Wikitude - VR Integrations: Oculus Integration SDK, SteamVR, Pico, HoloLens, HTC Vive 🖥️ Supported Platforms & Devices - Meta Quest / Quest Pro / Rift - HTC Vive / Valve Index - Microsoft HoloLens - Pico / Android / iOS 🎮 Full-Stack Unity Game Development - Game Design & Level Design - Art, Animation & UI Integration - Plugin & SDK Integration (Ads, IAP, Analytics, Social) - Version Control (Git) - QA Testing & App Store Submission 🧾 Why Clients Hire Me ✅ 10+ years Unity experience ✅ Deep XR & Computer Vision background ✅ Focus on performance and usability ✅ Clear communication and agile workflow ✅ 100% on-time delivery with long-term client relations

🌟 Senior Full-Stack Engineer & Solution Architect | .NET, React, Azure | AI-Assisted Development 💬 “Nitin is an exceptional developer with deep architectural insight—delivers efficient, scalable solutions and communicates complex ideas clearly.” — Dhwani K., BCG 👋 Hi there, thank you for checking out my profile! I’m Nitin, a Senior Full-Stack Engineer (11+ years) helping businesses modernize legacy systems, ship modern React frontends, and build secure .NET + Azure backends—always with a strong architectural foundation and future-ready design. I’ve delivered projects for Microsoft, BCG, Harman, Nagarro, Digital Juice, BusyBoxx, Lutron, McCarthy & Vaughn, and MROCorp across industries including healthcare, airlines, lighting/IoT, construction, and e-commerce. ✨ My differentiator: I combine proven engineering practices with AI-assisted development (Copilot, ChatGPT, Cursor) to accelerate productivity, improve documentation, and deliver enterprise-ready solutions faster. ✅ What I Do (Full-Stack End-to-End) ⚛️ Frontend Engineering → Responsive UIs with React, TypeScript, MUI5, Tailwind, TanStack (Query, Table, Virtual), and advanced charting. Migrated old ASP.NET/Angular apps to React/Angular latest with better performance and usability. 🖥️ Backend & APIs → Robust .NET 6/8 Web APIs, EF Core, Dapper, SQL Server—modular, secure, and scalable. Skilled with microservices and modular monolith architectures. 🗄️ Database & Search → Expertise in SQL Server, MongoDB, Elasticsearch, Redis for high-performance queries and intelligent search features. ☁️ Cloud & DevOps → Deployments on Azure App Services, AKS with Pods, IIS, Docker, CI/CD pipelines. Focused on secure, observable, and highly available systems. 🔐 Identity & Security → Migrated legacy ASP.NET/custom auth to OpenID Connect / OAuth 2.0 / JWT with ASP.NET Identity. Implemented RBAC and SSO-ready solutions. ⚡ AI-Driven Productivity → Leveraging Copilot, ChatGPT, Cursor AI to accelerate development, streamline testing/documentation, and deliver enterprise-ready solutions faster. 🚀 Recent Highlights 🏗️ McCarthy Vaughn Constructions → Delivered Safety Audit & Leadership Engagement modules with React + .NET 8 + SQL Server. Migrated from ASP.NET WebForms to modern stacks, deployed on Azure, and implemented reporting, user management, and authentication modernization. 💡 Lutron (Lighting & IoT) → Migrated legacy .NET Framework & Angular apps to React, Angular latest, and .NET 8 with a microservice architecture and secure token-based authentication. ✈️ Airlines (BCG) → Built shared libraries and data-heavy React UIs (ZBN, Pathfinder, Sentry) for real-time operations and disruption management. 🖊️ Microsoft (Virtuoso) → Designed a dynamic UI framework rendering configurable screens from JSON, added SQI/RAID/review workflows, and deployed to Azure cloud-native environments. 🛒 E-commerce (Digital Juice/BusyBoxx) → Delivered Elasticsearch + Redis search/admin tools, boosting content discovery and reducing infrastructure costs. 🏥 Healthcare (MROCorp, Nagarro) → Architected HIPAA-compliant APIs, audit logging, and modernization strategies for enterprise-grade healthcare applications. 🛠 Tech Stack (Keywords) Frontend: ⚛️ React, TypeScript, MUI5, Tailwind, TanStack, Charting, Angular Backend: 🖥️ .NET 6/8, .NET Framework, C#, EF Core, Dapper, Node.js/Fastify Cloud/DevOps: ☁️ Azure App Services, AKS with Pods, Service Bus, APIM, Functions, IIS, Docker, CI/CD Databases: 🗄️ SQL Server, MongoDB, Elasticsearch, Redis Architecture: 🏗️ Clean Architecture, Microservices, Modular Monolith, Caching, Telemetry, Secure Auth Domains: ✈️ Healthcare, Airlines, Construction, Lighting/IoT, E-commerce, Media 💼 Why Work With Me? ✔️ 11+ years delivering enterprise-grade solutions across industries ✔️ Proven expertise in legacy → modern migration (.NET Framework → .NET 8, Angular/ASP.NET → React/Angular latest) ✔️ Cloud-native delivery across Azure App Services, AKS, IIS, and Docker ✔️ Strong foundation in architecture, scalability, security, and compliance ✔️ Endorsed with LinkedIn recommendations highlighting technical excellence & leadership 📞 Let’s Connect If you’re looking for a full-stack partner who can modernize legacy systems, build new cloud-native applications, and deliver with AI-enhanced speed and precision, let’s talk. I’ll propose a clear, phased plan tailored to your project and business goals. Best Regards, Nitin R

Focused & result-driven Full Stack IT Software professional with nearly 17 years of experience in Design, Development, Deployment, Debugging, Testing and Troubleshooting of application in desktop , web and mobile .Net Core Skills : .Net, WPF, C#, MVVM, MAUI, Asp.Net Core, WebApi, Microservices, Azure etc AI Core Skills : Python, AI/ML, RAG Agents, LLM, Open AI, LangChain,Fast API, Vapi, n8n etc Tools : VS 2022, CoPilot, Claude Code, SQL, PostgreSql etc Excellence in gathering and understanding requirements of clients & other multiple stakeholders (at strategic and tactical levels), followed by translation into functional specifications as well as provisioning of suitable solutions Extensively worked in Agile, CI/CD, GIT, TFS etc Engaged in various phases of Product Development Life Cycle from analyzing requirements specifications, high level design, user story development, Implementation, unit testing, defect fixing, Code reviews and production support maintenance An effective Sr. Developer and leader with proven skills in development and leading teams during the project phase; holds expertise in managing & supporting the clients

Senior Full Stack Engineer with 6+ years of production experience building SaaS platforms, web apps, and APIs across the .NET / Angular / React / Azure stack. Top Rated on Upwork with a 100% Job Success Score across 28+ contracts. I've also been expanding into Python (FastAPI / Flask) and applied AI/ML — adding LLM features, RAG, and data pipelines to existing products. It's important to me to build long-term relationships with clients, so I'm primarily looking for long-term projects. My skills include: ✔️ Back-end: .NET 8 / C#, ASP.NET Core MVC/MVVM, Web API, SignalR, Razor, WPF, LINQ ✔️ Front-end: Angular, React, TypeScript, JavaScript, jQuery, HTML5, CSS, Bootstrap, Tailwind ✔️ Python: FastAPI, Flask, Pandas, NumPy, scikit-learn ✔️ AI / ML: OpenAI API, LangChain, LLM integration, RAG basics, prompt engineering ✔️ Cloud: Microsoft Azure — App Service, Azure Functions, Azure SQL, Cosmos DB, Azure DevOps ✔️ ORM: Entity Framework Core, Dapper ✔️ Database: SQL Server, MongoDB, PostgreSQL, MySQL, Redis ✔️ Architecture: REST API design, microservices, real-time (SignalR / WebSockets), auth (OAuth / JWT), payment integration (Stripe) ✔️ Tooling: Visual Studio, VS Code, Git, Azure DevOps, Docker ✔️ Process: Agile, Scrum, Kanban Expertise: ✔️ Web Development — REST Web API, ASP.NET Core, Angular, React ✔️ Cloud & Backend — Azure App Service, Web Servicer, Functions, SQL, AKS, Entra ID ✔️ Python + AI Add-ons — Flask / FastAPI services, OpenAI / LangChain integration, light data pipelines Send a message with your goal in two sentences, or book a consultation and we'll scope it together.

Senior .NET / Azure Architect | Bridging Enterprise Systems with Generative AI I transform complex business requirements into high-performance, AI-driven digital products. With 17+ years of experience and a Top Rated Plus history, I specialize in modernizing legacy architectures and integrating state-of-the-art Azure OpenAI solutions. My 2026 Specializations: - Generative AI Integration: Implementing RAG (Retrieval-Augmented Generation) architectures, Azure OpenAI Service, and AI Agents to automate enterprise workflows. - Modern .NET Ecosystem: Expert-level development in .NET 8, Microservices, and Blazor with a focus on Clean Architecture and SOLID principles. - Cloud-Native Azure: Architecting scalable environments using Azure Kubernetes Service (AKS), Functions, Service Bus, and Key Vault. - Legacy Modernization: Seamlessly migrating .NET Framework 4.x systems to modern, containerized .NET 8 environments to reduce technical debt and cloud costs. Why work with me? I don’t just write code; I design systems that scale. I use AI-accelerated development (Copilot/ChatGPT) to deliver results 40% faster while maintaining 100% code quality and security compliance.

With over 20 years of experience in the Microsoft and AI ecosystem and beyond, I bring deep expertise in SharePoint, Power Platform, Azure, Dynamics 365, AI/ML, and custom software development. I have successfully delivered 900+ projects worldwide, logged 22,000+ Upwork hours, and maintained Top Rated Plus status for 4+ years. I also lead a strong team of 40+ developers, enabling me to take on projects of any size and complexity. ✅ Core Expertise Artificial Intelligence & Chatbots – Azure OpenAI, Copilot Studio, NLP, N8N, Computer Vision, RAG, TTS, Speech Recognition, Conversational AI, Generative AI, Azure AI Foundry. SharePoint Development & Customization – Intranets, DMS, Portals, SPFx-based solutions, end-to-end SharePoint solutions Power Platform – Power Apps, Power BI, Power Automate (workflow automation, data-driven apps, custom dashboards) Azure Services – Administration, Migration, Azure DevOps, Cognitive Search, OpenAI integration Microsoft Dynamics 365 – CRM, Business Central (BC), NAV customization & integration Custom Software Development – .NET Core, React, Node.js, SQL, enterprise-grade applications 🏆 Achievements & Recognition 900+ Successful Projects delivered globally 22,000+ Hours on Upwork Top Rated Plus for 4+ years Valuable Contribution Award recipient Leading a team of 40+ developers delivering enterprise-grade solutions ✅ Advanced AI Expertise I have advanced expertise in Artificial Intelligence (AI), including: Machine Learning (ML), Deep Learning, NLP, Computer Vision, Reinforcement Learning, Neural Networks Augmented Reality (AR) & Virtual Reality (VR) solutions Working with leading AI models: GPT, Claude, Mistral, and other LLMs Conversational AI & Chatbot Development – integrated with Microsoft Teams, SharePoint, Azure, and Power Automate RAG (Retrieval-Augmented Generation), Sentiment Analysis, Voice Bots, TTS, Speech Recognition 🌟 Highlight AI Projects I’ve successfully delivered AI-driven solutions across a range of industries. Some of the highlights include: Chatbots • Integrated ChatGPT with Microsoft Teams to automate customer support, handling routine inquiries such as maintenance requests and rent payments. This reduced human intervention, improved efficiency, and delivered cost savings. • Implemented chatbots for public-facing sites in the insurance and legal domains. o For the legal domain, performed data scraping from government public sites to build a knowledge base, enabling the chatbot to respond to country specific legal queries. o Applied a similar approach for the insurance domain to support policy and claim inquiries. MS Teams & Zoom Recording Analysis • Developed processes to analyze meeting recordings from MS Teams and Zoom. • Automatically generated Minutes of Meeting (MoM), tasks, and summaries, storing them in project management tools such as Planner. • Extended this capability to the education domain, identifying communication gaps and mistakes from recorded sessions. Document Automation with Generative AI • Automated NDA and other legal/insurance document creation using Generative AI. • Streamlined document processing across business stages, helping clients manage cases and related files more efficiently. Vision Based Projects • Delivered multiple AI vision solutions across domains: o Sports: Identified the number of ball juggles performed by a football player. o Engineering: Detected rolling objects, tracked machine rotations, and generated analytics on utilization and movement. o Warehousing: Monitored loading/unloading processes, tracked personnel and vehicles involved, measured time taken, and counted objects handled