AI DevelopmentDocuMind: AI knowledge assistant
A RAG assistant over 40,000 internal documents for a consulting firm, with per-team access control.
- Next.js
- OpenAI
- Pinecone
Start your project free for 7 days. Pay only if you're happy.
Build your digital product with an experienced developer
Full-stack web development, AI applications, automation and custom software solutions, delivered with clear scope, honest timelines and code you own.
- Projects delivered
- 140+
- Average rating
- 4.9/5
- Years of experience
- 9
Arjun Mehta
Full-stack & AI Engineer ยท Next.js, Node.js, OpenAI
4.9(8 reviews)
- Completed projects
- 140+
- Avg. response
- 1 hour
Available for workBengaluru, IndiaReplies fast
Services
What I can build for you
Fixed-price packages for common projects, hourly help for ongoing work, and custom quotes for everything else.
7-day free trial
AI DevelopmentAI Web Application Development
AI Development5.0(2)
AI Web Application Development
Custom AI-powered web apps with GPT, RAG and agent workflows, built on Next.js.
Starting at
$1,200
Web DevelopmentNext.js Development
Web Development5.0(2)
Next.js Development
Fast, SEO-friendly websites and web apps with the Next.js App Router.
Starting at
$500
AutomationAI Automation
Automation5.0(2)
AI Automation
Automate repetitive work with AI agents, n8n and custom integrations.
Starting at
$400
Web DevelopmentFull Stack Web Development
Web Development4.0(1)
Full Stack Web Development
End-to-end web platforms: frontend, API, database, deployment.
Starting at
$850
Web DevelopmentReact Development
Web Development5.0(1)
React Development
React components, dashboards and SPA development with clean, typed code.
$40 / hour
SaaS DevelopmentCustom SaaS Development
SaaS DevelopmentNew
Custom SaaS Development
Multi-tenant SaaS products with billing, teams and admin, built to scale.
Custom quote
Support plan
See support plans Already have an app I built? Keep it healthy.
Priority fixes, security updates and a guaranteed response time, from $100 a month, or save $200 a year with yearly billing.
Why work with me
A senior developer, without the agency overhead
Production-grade code
Typed, tested and documented code in your own repository, so any developer can pick it up after handover.
Direct communication
You work with me, not an account manager. Expect quick replies and a demo at every milestone.
Secure by default
Authentication, validation and access control are built in from day one, not bolted on before launch.
Fast, measurable delivery
Clear scope, fixed timelines and a delivery date on every order. No surprises on the invoice.
Technologies
Modern, proven tools
I choose boring, well-supported technology for the core and cutting-edge AI where it adds real value.
- Next.js
- React
- TypeScript
- Node.js
- Python
- MongoDB
- PostgreSQL
- Redis
- OpenAI
- LangChain
- Tailwind CSS
- Docker
- AWS
- Vercel
- Stripe
- Razorpay
How it works
From idea to launch in four steps
- 01
Pick a service
Choose a package, book hours, or describe your project for a custom quote.
- 02
Share requirements
Tell me about goals, designs and integrations. I'll ask questions if anything is unclear.
- 03
Watch it come together
Follow progress on your order page and give feedback on each milestone.
- 04
Approve the delivery
Review the final delivery, request revisions if needed, then approve to complete.
Selected work
Recent projects
A few products I've designed and built for clients.
Web DevelopmentShiplytics logistics dashboard
Real-time shipment tracking and analytics for a logistics company handling 8,000 parcels a day.
- React
- Node.js
- PostgreSQL
AutomationInvoiceFlow automation
Email-to-ERP invoice extraction with AI validation and a human approval step.
- Python
- n8n
- OpenAI
SaaS DevelopmentClassroom SaaS
A multi-tenant platform for coaching institutes with subscriptions, timetables and payments.
- Next.js
- MongoDB
- Razorpay
FAQ
Common questions
Can't find what you're looking for? Send me a message and I'll reply quickly.
How does the process work?
You choose a package or request a quote, share your requirements, and I start work once the order is confirmed. You get progress updates and a demo at each milestone, then the final delivery for approval.
Can you take on custom projects?
Yes. Most of my work is custom. Use Request a Quote or message me with a short brief and I'll send a proposal with scope, milestones and price.
Can I hire you by the hour?
Yes. Hourly work suits bug fixes, small features and ongoing support. Choose the hours you need and you only pay for time actually worked.
Which technologies do you use?
Mainly Next.js, React, TypeScript, Node.js, Python, MongoDB and PostgreSQL, with OpenAI and LangChain for AI features, deployed on AWS, Vercel or your own servers with Docker.
How many revisions are included?
Each package lists its revisions. A revision covers changes within the agreed scope; new features are quoted separately.
How long does a project take?
Small tasks take a few days and MVPs typically three to six weeks. Every package shows its delivery time and custom quotes include a milestone timeline.
Have a project in mind?
Let's build it together. Tell me what you need and get a detailed proposal within a day.