Sarthak

Founding Engineer / Head of Engineering @ Gold.fi

• Senior engineer and ex-founder. 4+ years shipping DeFi and AI products from 0→1. RWA perps, DEXes, and now tokenized gold on Ethereum. • Frontend-heavy with full-stack depth. Best where engineering and product decisions are the same conversation. • Besides code, I degen or play Poker.

Work Experience

Founding Engineer

Gold.fi (Bullion Digital)

Jan 2026 - Present

• Sole engineer building a mobile-first PWA for Indian retail to buy, sell, and hold tokenized gold (XAUT) via UPI or USDT. • Built end-to-end INR/USDT → XAUT flow: UPI on-ramp → Privy embedded wallets (gas-sponsored, no seed phrases) → Uniswap V3 with 1inch v6 quote routing. • Shipped CDP yield strategy (XAUT collateral on AAVE v3 → borrow USDC → Morpho Blue vaults) with custom Solidity PositionManager (Foundry tests) and Vercel cron keepers; managed Pashov audit pre-launch.

Co-founder and Head of Engineering

Eido Labs

Dec 2024 - Dec 2025

Led technical strategy as co-founder. Built two products from 0→1: • Eido App — Multi-agent AI system on Berachain for executing DeFi via natural language, with LangGraph orchestration across specialized agents for intent parsing, transaction building, and execution. Shipped beta in 2 months, acquired 3,000+ users, raised $500k, and sold out 1.5k NFT collection. • Pills.trade — Telegram bot for 24/7 RWA perpetual trading on Arbitrum & Solana. Hit 200+ users and ~$50k trade volume within 2 weeks of beta launch. Designed novel DEX architecture with synthetic pricing oracles and liquidation mechanisms for round-the-clock trading.

Senior Frontend Engineer, Founding Engineer #3

SquaredLabs

Jun 2024 - Dec 2024

• Laid down and built the modular frontend architecture of Genie DEX from scratch and built all core functionalities and interactions. Shipped the production to the Base Sepolia testnet. • Helped designing the internal SDK for core interactions with Indexer, The Graph, smart contracts, and Potentia Protocol infrastructure layer.

Sr. Frontend Engineer

DefiLens

Feb 2024 - May 2024

• Joined in the initial phase. Revamped code design patterns and implemented industry-standard UX for transaction flows and user onboarding. • Contributed to Product Strategy, Growth, and Community initiatives, increasing DAU to 500+.

Lead Frontend Engineer

YieldBay

Feb 2022 - Sept 2023

• Built maintainable frontend architecture for YieldBay, a DeFi Yield Aggregator on Polkadot. • Achieved 70% performance improvement through optimized React patterns, data fetching & caching strategies, and reduced bundle size.

Selected Projects

xaut.cool
xaut.cool

Real-time analytics dashboard tracking XAUT tokenized gold supply across 8 chains with Native Ethereum and LayerZero OFT bridges.

pills.trade
pills.trade

Trade Stocks, Forex & Commodity derivatives: all via Telegram native RWA Perp DEX

Eido App
Eido App

DeFi Copilot. Explore, earn, and execute in DeFi across Berachain; just by chatting.

Genie DEX
Genie DEX

Squared Perps on Base Network

Essays

Connect

Feel free to contact me at sarthakvdev@gmail.com