Tomas Araujo — Product Manager

Web3 Engineer focused on smart contracts and execution-layer system design, combining on-chain logic with event-driven off-chain infrastructure. I build and test Solidity contracts with emphasis on deterministic behavior, clear state transitions, and auditability. My work includes DeFi primitives such as staking and vault systems, alongside contract architecture, security patterns, and token standards. Beyond on-chain development, I design off-chain execution layers that consume contract events, reconstruct state, and maintain consistency across asynchronous blockchain environments. This includes indexers, data pipelines, and APIs built to handle real-world conditions such as transaction latency and chain reorganizations. My approach is systems-oriented: separating canonical on-chain state from derived off-chain data, and designing workflows that remain reliable under eventual consistency and delayed finality—especially in L2 environments like :contentReference[oaicite:0]{index=0} and :contentReference[oaicite:1]{index=1}. Experience includes: • Solidity smart contracts (ERC-20, staking, time-based rewards) • Event-driven indexers (TypeScript + PostgreSQL) • Backend services for blockchain data processing • Foundational Rust programs (Solana) for low-level execution understanding Development practices: • Testing (unit + fuzzing with Foundry) • Deterministic design and reproducibility • Clear separation between on-chain and off-chain responsibilities Currently focused on building end-to-end systems (contracts + execution layers) and expanding into Rust-based and non-EVM environments.

Stackforce AI infers this person is a Blockchain Engineer specializing in smart contracts and decentralized systems.

Location: Recife, Brazil

Experience: 0 mo