Founding Engineer at Thesys
HRIJUL
BHATNAGAR

Building the future of generative UI — turning LLM outputs into live, interactive interfaces. Engineer, cybersecurity enthusiast, and maker of things.

View my work
Get in touch
$location: bengaluru | stack: ts, react, llms | status: building_
Scroll
About

A bit about me

I'm a software engineer who thrives at the intersection of AI and frontend craft. As a Founding Engineer at Thesys, I build generative UI infrastructure that makes AI agents actually useful — turning raw LLM outputs into real, interactive interfaces people can use.

Beyond engineering, I'm deeply curious. I co-founded a cybersecurity community, shoot photos when the light is right, play guitar to decompress, and believe in building with intention.

Photography

Capturing moments through the lens

@aviusgx

Music

Curating & playing guitar

music.aviusx.dev

Fitness

Discipline through training

Cybersecurity

Co-founded FrigidSec at VIT

FrigidSec

Technologies I work with

TypeScript
React
Next.js
Node.js
Python
LLMs
Generative UI
Three.js
Tailwind CSS
TypeScript
React
Next.js
Node.js
Python
LLMs
Generative UI
Three.js
Tailwind CSS
TypeScript
React
Next.js
Node.js
Python
LLMs
Generative UI
Three.js
Tailwind CSS
TypeScript
React
Next.js
Node.js
Python
LLMs
Generative UI
Three.js
Tailwind CSS
PostgreSQL
Redis
Docker
AWS
GraphQL
Express.js
Electron
WebSockets
REST APIs
PostgreSQL
Redis
Docker
AWS
GraphQL
Express.js
Electron
WebSockets
REST APIs
PostgreSQL
Redis
Docker
AWS
GraphQL
Express.js
Electron
WebSockets
REST APIs
PostgreSQL
Redis
Docker
AWS
GraphQL
Express.js
Electron
WebSockets
REST APIs
Experience

Where I've worked

2024 — Present

Founding Engineer

Thesys

Own the Agent Builder end-to-end — product lifecycle, engineering, marketing funnel optimizations, user research via PostHog session analysis, and feature prioritization. Contributed to building the C1 Generative UI API, Crayon SDK, and their documentation. Work deeply with LLMs daily, building generative UI infrastructure that turns model outputs into live, interactive interfaces.

Generative UILLMsReactTypeScriptProduct Engineering
2023 — 2024

Software Engineer

Upswing Financial Technologies

Built and maintained the API platform enabling consumer companies to offer financial products. Worked on scalable backend services powering fintech integrations.

Node.jsAPIsFintechBackend
2022 — 2023

Associate Software Engineer

Aasthy

Developed features for a fractional real estate investments platform. Worked across the stack on the product from early-stage through growth.

Full StackReactReal EstateStartups
2022

Frontend Engineer

Hybrowlabs Technologies

Built web applications and eCommerce solutions for a global development agency. Focused on responsive, performant frontends.

ReacteCommerceFrontendWeb Development
2021 — 2022

Full Stack Developer

Atom EI

Developed the frontend of a widget-based cross-platform Electron application within a business intelligence software environment.

ElectronReactCross-PlatformBI
Projects

Things I've built

Featured

Thesys Agent Builder

End-to-end ownership of a product that lets users design, visualize, and prototype AI agents. Built with generative UI, handling the full product lifecycle from engineering to user research.

Generative UIAI AgentsReactTypeScript
Featured

C1 API & Crayon SDK

Contributed to building the first Generative UI API that turns LLM responses into live, adaptive user interfaces in real-time, and its companion React SDK.

API DesignReact SDKLLMsOpen Source
Featured

PaperHub

A wallpaper catalog and sharing platform. Browse, discover, and share high-quality wallpapers with a clean, modern interface.

Express.jsReactNode.jsFull Stack

Animovie

A minimal IMDb-like website to look up movies. Clean UI for browsing and discovering movie information.

Node.jsExpressAPI Integration
Contact

Let's work together

Have an idea, a project, or just want to chat? I'd love to hear from you. Drop me a message and I'll get back to you as soon as I can.