2026 - Present
V12 Labs
Founder & AI Systems Engineer
Building production AI systems, AI agents, RAG/document QA workflows, enterprise automation, and modernization work.
Sharath Challa
I build and ship software end-to-end
I build the systems that sit between complexity and the people using it: execution-heavy platforms, developer portals, and infrastructure where reliability and clarity matter more than flash.
Hyderabad, Telangana, India
Experience
Full history →Jul 2022 - Mar 2026
Sidewalk
Lead Software Engineer
Led full-stack product engineering for an AI-powered CRM platform for residential real estate agents.
Feb 2020 - Aug 2022
UnitedHealth Group
Senior Software Engineer
Built TechHub, an internal infrastructure platform for provisioning and managing enterprise IT products.
Projects
VocalDesk
AI phone agents
A product experiment for building and testing AI phone agents for lead qualification, customer inquiries, and appointment booking.
Storyflow
Interactive web stories
An embeddable interactive story widget platform built as a TypeScript/Turborepo monorepo with app, dashboard, studio, and widget packages.
Vertical Video
Saliency-aware video cropping
A browser-based media experiment for saliency-aware vertical video cropping, with client and server pieces runnable through Docker.
RAG / Customer Support AI
Custom-knowledge chatbot
A generative AI chatbot experiment with custom knowledge training, document uploads, and website scraping for dynamic responses.
vercel/next.js
Open source · Merged PR
Added an ESLint rule that disallows styled-jsx in _document.js, catching a common Next.js mistake at lint time.
Writing
All posts →- Jun 30, 2026Advanced RAG Architecture: A Practical Guide to Building Reliable AI Retrieval Systems
- Oct 4, 2023Code-Induced Insomnia: The night I debugged in my sleep
- Aug 17, 2023Understanding the Differences: DOM vs SVG vs Canvas vs WebGL
- Aug 16, 2023HTML vs AMPHTML: Striking the Balance Between Flexibility and Performance
- Oct 28, 2022Why you should move to pnpm