Alejandro Santander
Software Engineer
Argentina, Chile
Summary
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RockstarAlejandro Santander is a seasoned software engineer with 16 years of experience, based between Argentina and Chile, who blends full-stack and backend expertise with a creative coder's mindset. He has contributed to high-profile open-source security tooling like OpenZeppelin, improving upgradeable smart contract tooling and hardening contract test suites—work that demonstrates both deep Solidity familiarity and practical attention to safer upgrades. Alejandro’s contributions span fixes for reserved keyword handling, test development, and version management, showing he’s comfortable working across CI, libraries, and deployed test environments. Known for thoughtful integrations and documentation-aware merges, he brings a pragmatic approach to complex blockchain problems while also valuing maintainability and developer ergonomics.
16 years of coding experience
Github Skills (8)
truffle10
smart-contracts10
solidity10
ethereum10
testing10
security9
evm9
javascript8
Programming languages (15)
Github contributions (5)
OpenZeppelin/openzeppelin-sdk
Apr 2018 - Mar 2019
OpenZeppelin SDK repository for CLI and upgrades.js
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:115 commits, 76 PRs, 291 pushes in 10 months
Contributions summary:Alejandro contributed to the OpenZeppelin SDK repository, focusing on the `openzeppelin-sdk` tool for managing upgradeable smart contracts. Their work involved fixing code related to the handling of reserved keywords within code and setting up a deployed standard library for a test environment. The user also worked on example code related to upgradeable contracts, and developed tests for the example.
openzeppelinupgradessdkcli
OpenZeppelin/openzeppelin-contracts
Nov 2017 - Jan 2018
OpenZeppelin Contracts is a library for secure smart contract development.
Role in this project:Backend Developer
Backend DeveloperContributions:25 commits, 22 PRs, 7 pushes in 2 months
Contributions summary:Alejandro contributed to the OpenZeppelin Contracts library, a repository for secure smart contract development. Their work includes modifying the `expectThrow` helper function to include 'revert' as a valid assertion, enhancing error handling within tests. They also merged a branch, indicating involvement in the project's overall code integration and documentation fixes, further showcasing their role in maintaining and improving the codebase, particularly in the TokenVesting and SplitPayment contracts. Finally, the user updated solidity versions, demonstrating the ability to manage dependencies and adapt to the latest language features.
securesmart-contractethereumsecuritycontract
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