Tomaz Pereira

Implemented the on‑chain artifacts that defined token behavior: ERC‑20/compatible token contracts, escrow and conditional settlement contracts used in merchant flows, and administrative modules enabling controlled upgrades and vesting enforcement. Delivered concrete solidity code and deployment scripts that determined transfer mechanics, burn/mint allowances (if applicable), and refund pathways embedded in the protocol. Coordinated deployment windows with product and legal to ensure on‑chain changes respected vesting and regulatory constraints. Led and coordinated third‑party security audits, produced remediation plans and executed contract upgrades where necessary; managed the bug bounty programs that surfaced and resolved vulnerabilities. Built integration tests and monitoring for contract events used by backend services to trigger off‑chain settlement and reconciliation. These engineering actions ensured operational reliability and materially influenced how quickly and safely UTK transactions were reflected in merchant accounting and secondary markets. Collaborated with cross‑functional teams to prototype and implement additional settlement features such as stablecoin routing and partial on‑chain/off‑chain settlement flows. The resulting deployed modules directly shaped token-level characteristics: settlement finality, refund mechanics, and the friction merchants experienced when converting UTK to fiat — all factors that changed token utility and circulation patterns in practice.