Jay Singh

Fullstack Engineer InternRemote – New Jersey, USA

• –Built role-based authentication using Auth0 with 10+ roles and custom per-role onboarding emails via SendGrid, as part of a Mortgage Intelligence Platform serving multiple tenants.
• –Configured wildcard SAN SSL on EC2 for dynamic tenant domains, Dockerized the project (Next.js, NestJS, Django + Ollama), with an internal note-taking tool which supports semantic search for LLM-based document retrieval.
• –Implemented 8-language UI support alongside a WebSocket chat module with real-time translation synced across email.

React Native InternOn-Site – Mumbai, India

• –Built an Android fintech app in Expo from Figma designs, setting up OAuth2 Gmail access and SMS history via Android API to aggregate user financial data into a vendor CRM interface.
• –Implemented client-side PDF generation for the CRM and Inventory Management module reducing server load, configured nightly builds for QA.

Maintainer NativeFlow, Top Contributor at TheOdinProject

• –Followed the standard open-source practice to ensure atomicity in commits/pull-requests corresponding to issues, building a complete ecosystem of dev-tools which support the core library.
• –Participated in Node:Revamp Project, with most of the work being discussion-heavy around language design rather than writing code and fixing backend issues on the TheOdinProject Website.

• –An utility-first styling library for React Native, enabling Tailwind-like styling but using objects.
• –Wrote Docusaurus documentation with live Expo examples and made a VS Code Intellisense extension for dev-exp.
• –Benchmarked as the second-fastest styling library, only 8% slower than the native StyleSheet API.

• –A decentralized crypto investment app with copy trading, TipLink for wallet-less onboarding.
• –Used CoinGecko and Jup.ag for live pricing with Gemini-based market analysis and a creator loyalty reward system.
• –Awarded a monetary grant of 5k USD from CoinDCX/India via Superteam for onboarding 1000+ users on Web3.

• –Connection-free file transfer for android and desktop using QR codes as a medium.
• –Chunked files into 800-byte MD5-verified QR payloads flashed at 10 QR/sec with auto-retry on bad scans.
• –Built a matching Web UI which only supports Send functionality with cross-device support.

• –An open sourced lab evaluation calculator that auto-generates annual cycle entries for submissions.
• –Achieved 500+ daily visits during semester peaks via SEO optimization.