Frontend
Interfaces & experiences
- React.js
- Next.js
- TypeScript
- JavaScript (ES6+)
- Redux Toolkit
- React Query (TanStack Query)
- Tailwind CSS
- Responsive UI development
I build digital
products that
last.
I'm Dev Raj Bhattarai, a MERN Stack Developer with 5+ years of experience building performant, production-grade web applications and agentic AI-powered features.
- 5+ Years Experience
- Full Stack Development
- Agentic AI
About Me
Building with code, curiosity & AI.
5+
YEARS EXPERIENCE
I'm Dev Raj Bhattarai, React and MERN Stack Developer with 5+ years of experience building performant, production-grade web applications across ERP, fintech-adjacent, e-commerce, and social platforms. Skilled in React, Next.js, Node.js, and MongoDB, with recent focus on designing AI-powered features using LLM integration, prompt engineering, and semantic recommendation systems. Comfortable owning features end-to-end, from API design through deployment, and collaborating directly with clients and cross-functional teams.
My journey started with React and modern JavaScript, translating UI/UX wireframes into responsive, production-ready interfaces across ERP, e-commerce, and social platforms. Over time I moved deeper into backend development, owning REST APIs, authentication, real-time systems, and deployment end to end.
Today my focus sits at the intersection of the MERN stack and Agentic AI. I work with the OpenAI API, prompt engineering, semantic intent matching, and hybrid recommendation pipelines to build products that pair solid engineering with intelligent, autonomous behaviour.
Full Stack
React, Next.js, Node.js & MongoDB
Agentic AI
LLM integration, prompt engineering & AI agents
Problem Solving
Turning complex ideas into practical products
EDUCATION
BSc, Computer Science & IT
Tribhuvan University
Kathmandu, Nepal
Skills & Technologies
Tools that turn ideas into working products.
A practical stack spanning modern frontend and backend development, data systems, cloud infrastructure, and Agentic AI.
Backend
APIs & server systems
- Node.js
- Express.js
- REST APIs
- JWT authentication and refresh tokens
- Role-based access control (RBAC)
- Webhook handling (RevenueCat)
Databases
Data & persistence
- MongoDB
- Mongoose
- Indexing and aggregation pipelines
Cloud & deploy
Infrastructure & deployment
- AWS EC2
- PM2
- Nginx
- Server deployment
Real-time
Live data & messaging
- Socket.IO
- Firebase (authentication and real-time data sync)
AI integrations
Intelligent systems
- OpenAI API (GPT)
- Prompt engineering
- Structured JSON outputs
- Semantic intent matching
- AI-based image moderation
Intelligent systems
Always learning. Always building
Experience
Where I've turned skills into experience.
From frontend development to full-stack delivery, each role has shaped how I design, build, and solve real-world problems.
Freelance
MERN Stack Developer
CRAVE – Social & Dining
Mar 2026 – Present
Backend for a social networking platform: matching, connections and real-time messaging; an OpenAI-based intent-matching engine; JWT, refresh-token and RBAC authentication; RevenueCat subscriptions with webhook handling; MongoDB indexing and aggregation tuning; admin APIs for user management, moderation, reporting and analytics; AI-based image moderation.
Technologies06 STACK
- Node.js
- Express.js
- MongoDB
- Socket.IO
- OpenAI API
- RevenueCat
Dubai, UAE
Mar 2026 – Present
Freelance
Freelance
MERN Stack Developer
Coupon
Sep 2025 – Mar 2026
Coupon Management System covering creation, validation, redemption and expiration. REST APIs integrated with checkout, order management and payments; atomic, concurrency-safe transactions; requirements gathered directly with clients and stakeholders.
Technologies05 STACK
- Next.js
- React
- Node.js
- Express.js
- MongoDB
Kathmandu, Nepal
Sep 2025 – Mar 2026
Freelance
Freelance
MERN Stack Developer
Vhandar
Jul 2024 – Dec 2024
E-commerce features across the stack. Mobile-first UI in TypeScript and Tailwind CSS; REST APIs for authentication, product management and order processing. Live project: vhandar.com.
Technologies06 STACK
- React
- Next.js
- Node.js
- Express.js
- TypeScript
- Tailwind CSS
Kathmandu, Nepal
Jul 2024 – Dec 2024
Freelance
Full-time
React Developer
Riddhasoft Pvt. Ltd.
Mar 2023 – Jul 2025
Next.js application development and ERP integration with a focus on accounting modules. Authentication, authorization and RBAC, including fingerprint-based user identification; locker management covering availability, allocation and permissions; front-end integration with server-side APIs alongside the back-end team.
Technologies04 STACK
- Next.js
- React
- REST APIs
- RBAC
Kathmandu, Nepal
Mar 2023 – Jul 2025
Full-time
Full-time
React Developer
Dynamic Technosoft Pvt. Ltd.
Mar 2022 – Aug 2022
Responsive user interfaces in React, CSS and Bootstrap, built with back-end developers and designers.
Technologies03 STACK
- React
- CSS
- Bootstrap
Kathmandu, Nepal
Mar 2022 – Aug 2022
Full-time
Full-time
React Developer
Wepost Pvt. Ltd.
May 2021 – Dec 2021
Turned UI/UX wireframes into reusable React components, managed application state with the Context API, and helped test and debug releases.
Technologies02 STACK
- React
- Context API
Kathmandu, Nepal
May 2021 – Dec 2021
Full-time
Freelance
React Developer
Smerafaces
Oct 2020 – Mar 2021
Web application UI in React and Redux, with authentication and real-time data sync on Firebase.
Technologies03 STACK
- React
- Redux
- Firebase
Kathmandu, Nepal
Oct 2020 – Mar 2021
Freelance
Internship
Internship Trainee
Brainants Technology
Jul 2019 – Dec 2019
Learned HTML, CSS, React and Firebase alongside senior developers.
Technologies04 STACK
- HTML
- CSS
- React
- Firebase
Kathmandu, Nepal
Jul 2019 – Dec 2019
Internship
Building experience through real projects
Projects
Things I've built & shipped.
A selection of full-stack, client, personal, and Agentic AI projects built to solve practical problems and explore modern technologies.
PreviewFeaturedCRAVE
Social & dining platform · Freelance
Backend for a social networking platform covering user matching, connections and real-time messaging. Users are matched on dining, activity and social intent by a hybrid pipeline of rule-based extraction, taxonomy clustering and LLM evaluation, designed to improve match accuracy while limiting inference cost.
Client / Private Project
PreviewClientCoupon
Coupon management system · Freelance
Covers the full coupon lifecycle — creation, validation, redemption and expiration — through REST APIs that plug into checkout, order management and payments. Redemption runs as atomic, concurrency-safe transactions so a coupon cannot be misused and the data stays consistent.
Client / Private Project
PreviewClientVhandar
E-commerce · Freelance
Full-stack e-commerce features: a responsive, mobile-first interface built from design wireframes into reusable, type-safe components, and REST APIs for authentication, product management and order processing.
More projects, experiments & ideas
Writing
Notes from the build.
Short write-ups on the specific problems behind the projects above — the debugging, the trade-offs, and what I'd do differently.
AI Job Match
See how well I fit your next opening.
Paste a job description and Dev AI will compare it against real skills, experience, and shipped projects — a deterministic score, not a guess.
AI Mock Interview
Practice a technical interview with Dev AI.
Pick a topic and difficulty, answer a handful of questions, and get scored feedback — a quick way to warm up before the real thing.
Topic
Difficulty
Contact
Let's build something meaningful.
Have a project, opportunity, or simply want to discuss an idea? Feel free to get in touch.
Get in touch
Looking for a developer, have an opportunity, or want to collaborate? I'd be happy to hear from you.
Open to full-stack development opportunities, freelance projects, and technical collaborations.