Products thatfeel right.
I'm Rohit Kartik, a software engineer who designs and builds web products: fast interfaces, solid backends and the AI and 3D features that make them stand out.
Hi, I'm Rohit
I turn ideas into software people actually enjoy using, from the first sketch to production.
Over the last two years I've shipped product interfaces, full-stack platforms, AI features, client portfolios and an open directory of design tools. Different problems, same standard.
I care about the parts users feel: speed, clarity, motion that means something, and code that is still easy to change a year later.
More about meSelected work
Recent work
Platforms, products and portfolios, each designed and built to do one job really well.
3D desktop platform
RoboViewer
AI product
RoboGPT
Developer tools
Kosha
Portfolio
Client portfolio
E-commerce
Bazaarly
Everything for a strong product.
Design, code, intelligence and interaction under one roof, so nothing gets lost between handoffs.
01Direction & interface
Design
Structure, interface and look come together before a single line of code is written.
Direction first, then pixels. I design in Figma so every choice is not just good-looking, but makes sense for the people using it.
02Frontend & backend
Development
The design gets built properly: responsive, fast, and with motion that supports the story.
React and Next.js on the front, Node.js or FastAPI behind it, PostgreSQL or MongoDB underneath. Typed end to end.
03Language & tools
AI features
Natural-language interfaces that turn a sentence into real actions inside your product.
Retrieval, tool calling, agents and MCP servers that connect LLMs to your data, APIs and workflows.
04Beyond the browser
3D & real-time
Interactive 3D scenes and live data that feel instant, from product viewers to full desktop tools.
Three.js, WebSockets and real-time services, including software that talks to physical hardware.
Who I've built for
From a YC-backed startup to independent founders, every project gets the same care.
What I'm good at
- Product & UI design
- React & Next.js development
- Full-stack web apps
- E-commerce & payments
- APIs & real-time services
- AI integrations & agents
- 3D & Three.js
- SEO, performance & deployment
Have something in mind?
Let's build it together.
Tell me what you're working on. You'll get an honest take on scope, stack and timeline, usually the same day.
Blog
Notes on building things.
Write-ups on engineering, product, AI features and 3D on the web: what worked, what didn't, and why.
FAQ
Good questions
Don't see yours? Send a message and you'll hear back within a working day.
Ask a questionProduct interfaces, full-stack web apps, portfolio and marketing sites, AI features, and interactive 3D. From a fast landing page to a complete platform.