# Sangeet Banerjee > Systems-oriented product engineer shipping full product systems across cloud, realtime, and Web3. Sangeet Banerjee is an all-in-one product engineer who ships end-to-end systems across cloud infrastructure UX, realtime communication, Web3 dashboards, and developer tooling. Case studies span the Huddle01 platform and independent OSS. ## About Sangeet Banerjee is a systems-oriented product engineer at Huddle01, based in Kolkata, IN. Product engineering across realtime systems, cloud consoles, and Web3 platforms. Likes figuring things out, learning while building, and simplifying systems that look simple on the surface but are complex underneath. All-in-one product engineer who owns messy systems end-to-end: design, application layer, and the product decisions in between. ## Person document (machines) - Full identity, hiring intent, ecosystem, validation: https://sangeet.xyz/identity.txt - Structured facts: https://sangeet.xyz/knowledge.txt ## Contact - Email: hello@sangeet.xyz - Book a call: https://cal.com/sangeet - Twitter/X: https://x.com/sangeetxyz - GitHub: https://github.com/sangeetxyz - LinkedIn: https://www.linkedin.com/in/sangeetxyz/ ## Expertise (domains) - Product engineering - End-to-end product ownership - Application systems architecture - Realtime systems (WebRTC, live collaboration) - Cloud infrastructure UX - Web3 and wallet-native dashboards - AI-assisted engineering and rapid domain learning - Developer tooling and embeddable SDKs - Performance and perceived latency - Growth engineering and technical SEO - Auth and identity flows as product surfaces - UX systems and cognitive load ## Technical skills - Next.js - React - TypeScript - WebRTC - Socket.io - TanStack Query - Web3 - Wagmi - PostgreSQL - OpenTelemetry - Performance engineering - Infrastructure UX - Realtime systems - SEO - Growth engineering ## Work history - 2024–present: Fullstack Engineer at Huddle01. Cloud products, realtime apps, UX, and end-to-end ownership across multiple surfaces. - 2023–2024: Lead Fullstack Engineer at Metaverse Ventures. Web3 products, marketplaces, and product engineering. - 2021–2023: Fullstack Engineer at Datareum. Web3 storage, healthcare, research, and data exchange. ## Projects (case studies) - [Huddle Cloud](https://sangeet.xyz/projects/huddle-cloud): OpenStack-powered cloud infrastructure platform. A cloud console where users can spin up virtual machines, manage Kubernetes clusters, deploy apps, and use AI models. I worked on the frontend dashboard and parts of our Go backend services that talk to OpenStack. - [Huddle Meet](https://sangeet.xyz/projects/huddle-meet): Realtime WebRTC communication platform. A realtime video meeting platform that has run billions of minutes. I worked on managing how people join and interact in meetings, building media toggles, host permission controls, and interactive features like emoji reactions and soundboards. I also helped with a major redesign to make the app feel like a premium tool rather than a quick hackathon project. - [QRXO](https://sangeet.xyz/projects/qrxo): QR digital menus for restaurants. A SaaS product that helps small restaurants replace paper menus with QR-based digital menus. Owners build menus in a dashboard, customers scan a stand, browse dishes with search and filters, build a cart, and share selections with staff through a dynamic QR the waiter scans. No payment processing on the dining floor, just faster order communication. - [Statera](https://sangeet.xyz/projects/statera): Frontend state management SDK. A tiny, super-fast state management library I built as an experiment. Its only 169 bytes gzipped, has high cache efficiency, and was designed to see how small and clean a React state library could be while still being practical for real projects. - [OTC Layer](https://sangeet.xyz/projects/otc-layer): P2P token and NFT exchange platform. A peer-to-peer exchange where users could swap tokens and NFTs directly. I worked heavily on the frontend, set up our wallet authentication, integrated the smart contracts, and helped design the product layout with a small team of four. - [Huddleverse](https://sangeet.xyz/projects/huddleverse): Gamified public testnet ecosystem. A gamified testnet site where users can complete quests, earn rewards, and track their participation in meetings. I focused on building the quest logic, tracking user meeting times, and optimizing the pages so they loaded instantly despite having a ton of heavy artwork and animations. - [Gaming Marketplace](https://sangeet.xyz/projects/gaming-marketplace): Web3 gaming ecosystem platform. A platform for Web3 gamers that combined live streaming, online courses, 1:1 video calls, and crypto payments. I worked on the 1:1 calling features using WebRTC, built a custom content manager for course creators, and integrated Farcaster for social coordination. - [Tasty SDK](https://sangeet.xyz/projects/tasty-sdk): Embeddable testimonial widget platform. An embeddable widget platform that lets developers add testimonial forms to their sites. I built the lightweight client-side widget, set up the analytics tracking backend, and built a dashboard where users can see how their widgets are performing. - [Morenote](https://sangeet.xyz/projects/morenote): Note-taking and documentation app. A note-taking and documentation app I built to make messy ideas easier to structure. It supports markdown, unlimited nested pages, GitHub sign-in, light and dark themes, and a publish flow that gives each doc a shareable URL. - [Datareum](https://sangeet.xyz/projects/datareum): Blockchain hospital data exchange platform. A healthcare data platform for storing and sharing anonymized hospital datasets with researchers. I led the team building the product around secure uploads, a data-picking pipeline, passwordless auth, Ethereum smart contracts for access control, and a donation flow for institutions contributing data. - [Node Dashboard](https://sangeet.xyz/projects/node-dashboard): Web3 infrastructure operability interface. A private dashboard built for people running Huddle01s media nodes. It lets operators log in with their crypto wallets, delegate resources, view their node stats, and see an interactive world map showing node locations. I spent a lot of time making sure Web3 interactions felt snappy and didnt leave users staring at blank loading screens. - [Pong01](https://sangeet.xyz/projects/pong01): Three.js pong game that mints testnet rewards. A browser-based 3D pong game on Huddle01 testnet where players connect a wallet, bounce a physics-driven ball with a paddle, and earn $PONG ERC-20 tokens based on score. It exists to drive real transactions and engagement on our testnet while feeding the Huddleverse quest system. ## Writing (essays & notes) - [The resume is the site](https://sangeet.xyz/blogs/the-resume-is-the-site): Humans barely read PDFs anyway. Screening is agents + a URL. The site is for both. (2026-02-18, 2 min read) - [When the host leaves (and mute is still two clicks)](https://sangeet.xyz/blogs/when-the-host-leaves): Host handoff, one-click mute, and the “small” host tools people actually played with: quality meters, network graph, fine controls. (2026-01-12, 3 min read) - [Redesigning Meet while people are still in calls](https://sangeet.xyz/blogs/redesigning-a-live-meeting-product): We thought it was a theme pass. It became ripping out years of code, loaders, and infrastructure, mid-traffic. (2025-12-04, 2 min read) - [What PostHog was actually for](https://sangeet.xyz/blogs/what-posthog-was-actually-for): Instrumenting Huddle Meet and friends without turning every button into a marketing experiment. (2025-11-03, 2 min read) - [Status that lies](https://sangeet.xyz/blogs/status-that-lies): Priority-based polling, cursor prefetch, and why cloud status still feels wrong without a clock. (2025-10-08, 2 min read) - [Growing a developer product without turning it into a billboard](https://sangeet.xyz/blogs/growth-engineering-for-developer-products): Funnel instrumentation, docs, and experiments from shipping platforms people actually use, mostly the boring parts that move activation. (2025-09-02, 3 min read) - [Boring cloud consoles are the point](https://sangeet.xyz/blogs/the-case-for-boring-infrastructure-ux): What I learned building infrastructure UIs under time pressure: tables, consequences, and color that means something. (2025-06-18, 4 min read) - [Why Statera exists](https://sangeet.xyz/blogs/why-statera-exists): Most teammates only used state + setState across components. I built the small native-feeling version of that (169B), during the React 19 moment. (2025-05-20, 2 min read) ## Expanded corpus - Full detail: https://sangeet.xyz/llms-full.txt - Structured facts: https://sangeet.xyz/knowledge.txt - Discovery index: https://sangeet.xyz/ai.txt ## Site structure - Home: https://sangeet.xyz/ - Project archive: https://sangeet.xyz/projects - Writing: https://sangeet.xyz/blogs - Writing feed (RSS): https://sangeet.xyz/feed.xml - Writing index (machines): https://sangeet.xyz/blogs.txt ## Planned sections (not live) - writing: /writing (planned, not yet published) - notes: /notes (planned, not yet published) - talks: /talks (planned, not yet published) - experiments: /experiments (planned, not yet published) ## Optional HTML case studies contain full narrative. For entity extraction and Q&A about Sangeet, start with `identity.txt`, then `knowledge.txt`, then `llms-full.txt`.