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.

$ location: bengaluru | stack: ts, react, llms | status: building
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01About

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

Fitness

Discipline through training

Music

Curating & playing guitar

music.aviusx.dev

Cybersecurity

Co-founded FrigidSec at VIT

FrigidSec

Technologies I work with

TypeScriptReactNext.jsNode.jsPythonLLMsGenerative UIThree.jsTailwind CSS
PostgreSQLRedisDockerAWSGraphQLExpress.jsElectronWebSocketsREST APIs
02Experience

Where I've worked

2024 — Present

Thesys

Founding Engineer

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 UI
  • LLMs
  • React
  • TypeScript
  • Product Engineering

2023 — 2024

Upswing Financial Technologies

Software Engineer

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

  • Node.js
  • APIs
  • Fintech
  • Backend

2022 — 2023

Aasthy

Associate Software Engineer

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

  • Full Stack
  • React
  • Real Estate
  • Startups

2022

Hybrowlabs Technologies

Frontend Engineer

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

  • React
  • eCommerce
  • Frontend
  • Web Development

2021 — 2022

Atom EI

Full Stack Developer

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

  • Electron
  • React
  • Cross-Platform
  • BI
03Projects

Things I've built

01 / 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 UI
  • AI Agents
  • React
  • TypeScript
02 / 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 Design
  • React SDK
  • LLMs
  • Open Source
03 / Featured

PaperHub

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

  • Express.js
  • React
  • Node.js
  • Full Stack
04

Animovie

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

  • Node.js
  • Express
  • API Integration
04Contact

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.