Jun 2026 — Present
Current roleAI & enterprise delivery · Remote
Team Lead
Leading AI and enterprise delivery, architecture, code reviews and mentoring. Agentic AI, MedAI and chatbot systems; IIS, cloud and production deployments.
Rajan Gupta — Portfolio. Full Stack Developer.
Full Stack Developer
About me
Intro
Hey, I'm Rajan. A full stack developer with 6+ years of experience building websites and enterprise platforms with React, Next.js, Angular and ASP.NET. I'm a Team Lead working remotely on AI and enterprise delivery. My work spans brand websites, healthcare AI, hotel management, workshop operations, billing, mobile apps and CMS / HRMS platforms. Available remotely for freelance work.
The stack
- React
- Next.js
- TypeScript
- Angular
- Astro
- Tailwind CSS
- JavaScript
- HTML5
- CSS3
- GSAP
- Responsive UI
- ASP.NET Core
- .NET Web API
- NestJS
- SQL Server
- PostgreSQL
- Entity Framework
- JWT
- CQRS
- Firebase
- Cloudinary
- Vercel
- Railway
- Docker
- GitHub Actions
- Expo / React Native
- Azure
- IIS
- AI APIs
- OpenAI
- Agentic AI
- Agentic RAG
- Umbraco CMS
- Headless APIs
- CMS
- HRMS
- SEO
WHAT I CAN DO
01
Websites & web applications
- ■React, Next.js & TypeScript
- ■Astro & HTML / CSS / JavaScript
- ■GSAP & scroll interactions
- ■Responsive UI & technical SEO
- ■Vercel & GitHub Pages
Brand websites and web applications built with React, Next.js, Angular and Astro, with responsive interfaces and GSAP motion.
VIEW PROJECTS02
Enterprise platforms
- ■Hotel property management
- ■Workshop operations & QR tracking
- ■Production & inventory
- ■Billing, payments & reports
- ■JWT & role-based access
Hotel, production, billing and workshop systems with workflows, reporting and role-based access.
03
AI tools & integrations
- ■MedAI healthcare assistant
- ■Medical report analysis & summarization
- ■AI chatbot systems
- ■OpenAI API integrations
- ■Agentic AI workflows
Healthcare tools, chatbot systems and document AI, with .NET APIs and React or Angular interfaces.
04
CMS & business administration
- ■Umbraco CMS v8–13
- ■Headless .NET APIs
- ■Firebase content management
- ■CMS, accounts & HRMS
- ■SEO publishing workflows
Content management and business admin panels for pages, enquiries, accounts and people operations.
05
APIs & backend systems
- ■RESTful Web APIs
- ■PostgreSQL & SQL Server
- ■Entity Framework & TypeORM
- ■CQRS & clean architecture
- ■JWT & .NET Identity
ASP.NET Core and NestJS backends with structured data, authentication and business workflows.
06
Mobile & deployment
- ■Expo & React Native
- ■PWA & API integration
- ■IIS, Azure & cloud deployments
- ■Vercel & Railway
- ■Docker & GitHub Actions
Mobile applications, installable web apps and production deployment for connected business systems.
Selectedwork
Real websites, built for real businesses. Select an image to view the project here, or open the live site to explore it.
More builds
01
SNEAK cure
SNEAK cure
RESTORATION STUDIO
Premium sneaker and leather care website with service and product pages, before / after restoration, franchise and training content. Next.js 15, React 19, TypeScript, GSAP and Framer Motion.
02
DIGITAL ninja
DIGITAL ninja
LABS AGENCY
Agency website with portfolio, case studies, blog and chatbot. A connected admin brings together CMS, accounts and HRMS, alongside an Expo / React Native mobile app. Next.js 15, React 19, Firebase and Cloudinary.
03
SHUDH india
SHUDH india
CATERING
Lead-generation catering website with packages, gallery, videos, enquiries and a Firebase admin CMS. Built with HTML5, CSS3 and vanilla JavaScript, with a Node.js SEO publishing workflow and GitHub Pages hosting.
In focus
Scroll to explore
6+Years experience
50+Projects delivered
15+Websites & apps
100%Client focus
Experience
The work.
The growth.
From backend foundations to leading AI and enterprise delivery.
Available remotely ↗2024 — May 2026
Healthcare & simulation · Remote
Software Developer
Interact simulation platform, MedAI healthcare assistant and AI chatbot systems. IIS and cloud deployments.
2023 — 2024
CMS & API engineering
Software Developer
Umbraco CMS v8–13, headless .NET Web APIs and NuGet libraries with 1,000+ downloads.
2022 — 2023
Backend foundations
Trainee Developer
RESTful Web APIs, JWT and .NET Identity, CQRS space management and Microsoft Dynamics.
Always learning
Skills backed
by learning.
- Oracle OCI 2026 Agentic AI Foundations (1Z0-1157-26)
- OpenAI Agents and Workflows
- Simplilearn — Building Agentic RAG with LlamaIndex
- IBM Artificial Intelligence Fundamentals
- Microsoft PL-900
- Microsoft PL-100
- Microsoft Dynamics
Break it if you can. It still ships.
Hello World
Ready
Available for work
Get in touch
Available remotely for freelance work — websites, apps and enterprise systems built with React, Next.js and .NET. Message on WhatsApp or send an email.