Jason Tang

Architected and supervised the engineering work that delivered the hardware wallet's secure elements, firmware signing logic and USB/Bluetooth/mobile integration layers relied upon to custody and operate SFP tokens. Concrete deliverables included secure key storage designs, transaction signing protocols, firmware update processes and cryptographic audit coordination. These technical artifacts defined the security model and user flows for holding and transacting SFP with SafePal devices. Implemented developer-facing APIs and SDKs used by mobile and backend teams to surface token balances, staking options and in-app claiming of distribution events. By delivering these integration points, engineering choices concretely shaped how SFP token mechanics—such as staking, airdrop claims and cross-chain swaps—were executed from SafePal interfaces and how third-party dApps could interoperate with the wallet. Led third-party security reviews and coordination with independent auditors to validate cryptographic primitives and firmware release control, directly influencing user trust and third-party integrations for SFP custody. Engineering governance decisions affected which token standards and chains were supported at launch, thereby constraining initial utility and the set of DeFi protocols to which SFP could be connected. Maintained operational oversight of bug‑fix releases and hardware revisions that changed device compatibility and security posture over time, which in turn impacted the persistence of on-device holdings and the user experience for SFP holders. The accumulated engineering decisions therefore had sustained practical effects on token custody risk, integration breadth and user adoption.