RohanS

Experience

Software Engineer Jul 2025 – Present

Clearsight Technologies · React Native · Onsite, Bangalore

Built a reactive dependency-graph engine powering live data bindings across 1000s of React Native UI widgets — topological sorting, AST-based dependency extraction, cycle detection, and custom binary serialization — cutting live-preview re-evaluation by 35% and eliminating full JSON re-bursts
Engineered the cross-platform widget rendering pipeline (widget tree builder + flex layout manager) with memoized selectors and list virtualization for responsive, smooth-scrolling layouts across iOS and Android
Shipped platform-specific native integrations — keyboard avoidance respecting iOS (keyboardWillShow) vs Android (adjustResize) lifecycles, plus a native haptics layer (iOS UIImpactFeedback / Android VibrationEffect)
Implemented offline-first persistence via namespaced AsyncStorage and an RNFetchBlob file layer (app saves, fonts), plus OTA bundle updates — keeping state durable across sessions and shipping fixes without store releases
Built a live-selling React Native widget with real-time media overlays via AWS Elemental MediaLive relayed over RTMP (ZegoCloud) to Facebook, TikTok, and Instagram — driving an increase in customer retention and a 15% uplift in live-session revenue

Backend Engineering Intern May 2025 – Jun 2025

GoQuant · Remote

Achieved <500ms latency for near real-time alerting using async event-driven architecture and optimized data pipelines
Constructed Grafana dashboards tracking KPIs like block times and transaction fees for data-driven performance improvements

Projects

SubSearch

Live GitHub

Node.js / TypeScript, FastAPI, ChromaDB, sentence-transformers, Docker

Built a full semantic search pipeline over Reddit — scrape → embed → store → query — with zero keyword matching; each post is embedded via a self-hosted all-MiniLM-L6-v2 sidecar and stored in ChromaDB
Wrote the embedding service from scratch as a FastAPI microservice in its own Docker container; Express backend calls it over HTTP, keeping the ML runtime fully isolated from the API layer
Queries are embedded at request time and ranked by cosine similarity inside ChromaDB

Auction Engine

GitHub

TypeScript, Node.js, Redis

Real-time bidding and order matching platform using Redis for atomic concurrency — handles simultaneous bids without race conditions
Planned migration to Go to explore channels, goroutines, and locking primitives at the systems level

ChunkedWisdom

Live

Next.js, Supabase, Vercel

RLM-style recursive inference pipeline over 590 Bhagavad Gita verses — treats the text corpus as an external environment and recursively prompts the LLM over verse-level snippets
Answers long-context queries beyond single-pass limits with chapter- and theme-aware multilingual retrieval

GetyouPlaced

Live GitHub

Next.js, Supabase, Vercel

Platform for mass cold-email outreach to newly funded startups' CEOs and CTOs
Cut query time on a 70k-entry founder table by adding targeted indexes on join and filter columns

Expensify

GitHub

Expo, React Native, TypeScript, Node.js, PostgreSQL, Prisma, AWS S3, Docker

Full-stack cross-platform expense management app with Expo SDK 54 and a Dockerized Node.js/Express backend, featuring JWT auth, group-based expense tracking with role-based access
Real-time sync via Ably WebSockets across all connected clients

CodeDarshan

Demo

Browser Extension, React, TypeScript · 30 active users

Browser extension providing hints and visualizations for tracing program execution and debugging with 80% accuracy
Won Most Voted Award at Makeathon5 with 15K+ impressions on Twitter

Open Source

Valhalla (OpenStreetMap Routing Engine) — Implemented real-time API warning notifications using Sonner toasts across route, isochrone, and optimized route endpoints — solving a long-standing UX gap that a prior GSoC attempt had failed to address

Valhalla (OpenStreetMap Routing Engine) — Added multilingual map label support with language persistence via localStorage, enabling English/German/local script switching across multiple tile providers

Autumn (YC F24) — Added dashboard CTA with APIs, boosting engagement by 50%

Mail.Zero (YC 25) — Eliminated 100% of redundant API calls, reducing backend load

Bifrost (Maxim AI) — Added UI configuration for vector and log storage backends

Klavis AI — Built a Google Analytics MCP server integration

Education

Thapar University, Patiala 2022 – 2026

B.Tech in Electronics and Computer Science