Co-founder & Smart Contract Engineer
Kokio - GMMS Labs · Mar 2024 – Present
- Built Kokio, a React Native app for eSIM/data purchases in 200+ countries, working across the app, smart contracts, SDK, and infrastructure.
- Developed ERC-4337 smart contract wallets with biometric-based keyless signing.
- Wrote and tested the smart contract suite, organized external audits, and fixed bugs across the system.
- Expanded the test suite from 100 to 620+ tests and increased code coverage to 98%.
- Used invariant testing and explored formal verification with the Certora Prover.
- Led company direction, developer management, and protocol architecture.
- Designed the zk-CX prototype for decentralized telecom certificate exchange using ZKPs.
- Secured Ethereum Foundation grants and worked with the PSE team on privacy and scaling research.
- Use LLMs and AI coding tools for development, debugging, testing, research, and codebase analysis.



