Guillermo Salazar
Security Reviewer & Senior Smart Contract Engineer at Yield Aggregator Protocol
Costa Rica
Summary
👤
Senior🎓
Top SchoolGuillermo Salazar is a Senior Smart Contract Engineer and Security Reviewer with over 20 years in technology and 11 years focused on blockchain, delivering secure Solidity systems for DeFi platforms that have handled billions in TVL. He designs, tests and maintains large contract fleets—leading risk frameworks for 250+ contracts and 50+ third‑party integrations—while championing robust testing (unit, invariant, fuzzing) and deployment practices with Foundry. As a serial founder and team leader, he has built end-to-end architectures, supervised audits with firms like Quantstamp, and mentored engineers to raise code quality across Web2 and Web3 projects. His background in Java reactive systems, project management and TDD informs a pragmatic, security-first engineering approach that balances gas efficiency, maintainability and operational risk. Based in Costa Rica, he blends entrepreneurial experience with hands-on protocol design, having adapted core DeFi primitives for novel NFT and yield use cases.
11 years of coding experience
12 years of employment as a software developer
Certified Scrum Developer System Developer, Certified Scrum Developer System Developer at Scrum AlliancePMP Preparación para la certificación Project Management Professional en PMI, PMP Preparación para la certificación Project Management Professional en PMI at PMValue S.A.Intermediate I Inglés, Intermediate I Inglés at ICANA - Instituto Cultura Argentino NorteamericanoEvaluation of Strategic Decisions Business, Evaluation of Strategic Decisions Business at NovoEd - Venture-LabsIntegrating Docker into Your Infrastructure and Services Docker, Integrating Docker into Your Infrastructure and Services Docker at Udemy AcademyPosgrado en Gestión de Proyectos Gestión de Proyectos, Posgrado en Gestión de Proyectos Gestión de Proyectos at Universidad Tecnológica NacionalIntroduction to risk management Risk Management, Introduction to risk management Risk Management at Camara Argentina de ComercioLeadership in Time of Changes (5th Edition) Business Leadership, Leadership in Time of Changes (5th Edition) Business Leadership at Miriadax.netDesarrollo Avanzado de Componentes de Negocio con tecnología EJB Desarrollo de Sistemas con EJB, Desarrollo Avanzado de Componentes de Negocio con tecnología EJB Desarrollo de Sistemas con EJB at IT Training CenterIntroducción al Coaching Profesional y a la Gestión de Liderazgo Liderazgo Coaching Profesional, Introducción al Coaching Profesional y a la Gestión de Liderazgo Liderazgo Coaching Profesional at Capacitarte UBA
Spanish, English
Github Skills (24)
solidity10
ethereum10
blockchain10
smart-contracts10
borrowing10
ethereum-contract10
vyper9
vault9
golang8
san4
mappings4
monorepo4
saas3
nextjs2
react2
Programming languages (6)
Github contributions (5)
yearn/yearn-watch-legacy
May 2021 - Aug 2021
Yearn Watch is a tool that provides vault and strategies data for management
Contributions:13 reviews, 50 commits, 34 PRs in 3 months
golangyearnvault
yearn/yearn-vaults-v2-subgraph
Jan 2021 - Oct 2021
Contributions:43 reviews, 33 commits, 50 PRs in 8 months
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