Tirtha Sarker
Technical Lead | Payments Infrastructure, Smart Contracts, and Applied AI Systems
📍 India (Remote)
Technical Lead with 10 years in software engineering and 7 years across Web3, system architecture, smart contract systems, and multichain payments infrastructure. Built and led production systems with ownership across protocol design, backend services, security response, mobile product delivery, and cross-functional execution. Strong in architecture, reliability, and translating complex technical constraints into practical products.
Work Preferences
Salary
USD 120,000 – 300,000
Skills
Work Experience
Founder & Principal Engineer
Yugen Labs
Jan 2025 — Present
Building a small applied AI engineering practice focused on workflow automation, internal knowledge systems, and LLM-backed product tooling for startups and growing teams.
Technical Lead
Reveel
Oct 2023 — Present
Owned end-to-end engineering for REVA, an agent driven multichain stablecoin payments platform across Ethereum, Base, Polygon, and BNB Chain using ERC-4337 smart accounts, embedded wallets, and bundler infrastructure. Led launch of the REVA mobile app. Built early native x402-based invoicing product and OpenClaw-integrated agent skills. Directed incident response for unauthorized outbound wallet transactions, performing on-chain forensic analysis. Reduced third-party API costs by ~85% through a Redis caching strategy.
Security Research Fellow
yAcademy DAO
Nov 2022 — Dec 2022
Completed structured adversarial smart contract auditing work covering vulnerability identification, attack-surface analysis, and formal security reporting.
Lead Protocol Engineer
Reveel
May 2022 — Oct 2023
Architected and delivered RevShare, a multi-contract revenue distribution system supporting programmable on-chain fund routing across multiple stakeholders. Designed and deployed core payment protocol contracts across multiple EVM chains with emphasis on upgrade safety, re-entrancy prevention, and production-grade correctness. Helped establish internal engineering standards for audit readiness and on-chain risk management.
Senior Solidity Developer
DoinGud
Apr 2022 — Jun 2022
Delivered protocol-layer smart contract infrastructure for a creator-economy platform, focused on architecture, gas optimization, and production-grade code quality on a compressed timeline.
Senior Smart Contract Engineer (Freelance)
UNXD
Jan 2021 — Dec 2022
Wrote core smart contracts for UNXD's Dolce & Gabbana on-chain NFT collection, supporting about $23M in auction settlement volume with zero critical contract failures.
Technical Consultant
Independent / Freelance
Jan 2019 — Present
Advised Web3 and fintech teams on smart contract architecture, security trade-offs, protocol design, and production delivery across DeFi, payments, and NFT use cases.
Education
Techno India College of Technology
B.Tech · Computer Science and Engineering