Tiago Guimarães
Senior Rust Engineer at CoW DAO
Minas Gerais, Brazil
Summary
🤩
Rockstar🎓
Top SchoolTiago Guimarães is a Senior Rust Engineer with a decade of experience building backend systems, distributed databases, and Web3 protocols, currently focused on CoW DAO after leading cross-chain ZK bridge work at Eiger. He has deep hands-on experience in Rust, Solana, Solidity, PostgreSQL and TypeScript, and has contributed to prominent open-source projects like The Graph (graph-node and indexer), improving reliability and test stability for production blockchain indexing. Tiago blends systems programming and pragmatic engineering—optimizing timeouts, refactoring integration tests, and hardening queueing and fee-management logic—to keep critical infrastructure maintainable at scale. He also shares knowledge publicly, having taught Rust at Pluralsight and presented at community events. Based in Minas Gerais, Brazil, he pairs an analytical background in accounting and tax-data analytics with a curiosity for distributed systems and new languages, which informs both his design rigor and product-oriented mindset.
10 years of coding experience
8 years of employment as a software developer
Nanodegree Ethereum Blockchain Development, Nanodegree Ethereum Blockchain Development at UdacityBachelor's degree Accounting, Bachelor's degree Accounting at Universidade Federal de Minas Gerais
English, Portuguese
Stackoverflow
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Github Skills (30)
javascript10
back-end-development10
testing10
typescript10
wpgraphql10
subgraph10
ethereum10
wordpress-graphql10
typescript-types10
graphql10
typescripts10
rust10
backend10
migration9
apidoc9
Programming languages (9)
Github contributions (5)
graphprotocol/graph-node
Feb 2021 - Nov 2022
Graph Node indexes data from blockchains such as Ethereum and serves it over GraphQL
Role in this project:
Backend Developer & QA Engineer
Backend Developer & QA EngineerContributions:1 release, 224 reviews, 392 commits in 1 year 9 months
Contributions summary:Tiago made several commits related to improving the quality and stability of the project's codebase. They addressed non-deterministic tests by ignoring them, and implemented fixes to tests such as parameterizing timeouts. Other contributions include removing format calls from panic calls, removing redundant semicolons, and refactoring integration tests to make them concurrent.
node-graphipfsgraphql-apiindexesethereum
graphprotocol/graph-tooling
Feb 2021 - May 2022
Monorepo for various tools used by subgraph developers.
Role in this project:Back-end Developer
Back-end DeveloperContributions:10 reviews, 26 commits, 11 PRs in 1 year 2 months
Contributions summary:Tiago primarily focused on enhancing the functionality and maintainability of the `graph-tooling` repository. They implemented features such as parameterized timeouts and increasing default timeout values. The user also contributed to the migration and adaptation of the project by bumping API and specification versions, indicating a role in maintaining the project's evolution. Their contributions are critical to ensuring the tools used by subgraph developers remain current and effective.
monoreposubgraphgraphqlyarn-workspacestypescript
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