0xfung

Identity & Credential Infrastructure. Architect the core identity layer for Moca Network, a multi-project Web3 ecosystem; led the integration of Privado ID to deliver privacy-preserving, zero-knowledge verifiable credentials that bridge legacy Web2 data into on-chain identity. Designed and shipped the AirKit SDK end-to-end — a unified Web3 toolkit consolidating ERC-4337 account abstraction, session keys, gasless transactions, and verifiable credentials — driving partner integrations across multiple ecosystem projects. Orchestrated the technical launch and core infrastructure of Moca Chain, a purpose-built identity L2; owned validator bring-up, bridge design, and the reference implementation for cross-project interoperability. Engineered high-security claim and distribution protocols for hundreds of thousands of concurrent users; optimized gas cost by 40%+ through Merkle-batching and storage-slot packing while hardening against replay and front-running attack vectors. Led Moca Network’s inaugural Hacker House at ethCC 2025; authored developer toolkits, reference apps, and documentation that measurably accelerated builder adoption of the identity stack.

Led end-to-end technical design for a DeFi risk-sharing protocol; architected the whole smart-contract to enable risk sharing with different assets and earning yield with underlying 3rd party yield aggregator protocols. Established the engineering standards the team now ships against — review cadence, coverage thresholds, CI-gated Slither, and audit-readiness checklists — and mentored contributors, measurably lifting velocity without trading off contract safety.

Built a decentralized professional-identity protocol from a blank repo to pilot; shipped the credential issuance, verification, and revocation flows that validated the product hypothesis with real users. Scaled a lean team under startup constraints; cut deployment friction ~60% by introducing automated CI/CD, reproducible local chains, and rigorous Slither/Mythril-gated contract testing suites. Partnered directly with founders and design to convert product vision into shippable sprint work, and represented the team in investor and partner technical diligence.

Architected an IoT-integrated smart-data platform in PySpark and Python, ingesting telemetry from thousands of sensors across property assets and surfacing operational KPIs to facilities leadership.

Founded and ran a boutique engineering consultancy; led digital transformation for the Tourism Authority of Thailand (TAT), shipping modern React / Node.js engagement platforms serving regional tourism campaigns.

Directed iOS (Swift) development of “MyMM,” a luxury marketplace app; managed distributed offshore teams across multiple time zones and delivered on a rigid retail launch window.

Engineered high-traffic mobile solutions including the MTR Mobile app (millions of daily users); awarded HKICTA Gold for technical excellence in a commercial mobile solution.