Juan Hidalgo
Sr Software Engineer at Decentraland
Barcelona, Catalonia, Spain
Summary
🤩
Rockstar🎓
Top SchoolJuan Hidalgo is a senior full-stack software engineer based in Barcelona with 11 years of professional experience and 9+ years focused on the JavaScript ecosystem, particularly Node.js, React, and Redux. He has designed and shipped scalable architectures and backend microservices in Java and Go, often contributing from project inception through production. At Decentraland he works on dApps and smart contracts and has contributed front-end features to the high-profile Decentraland NFT marketplace, including ENS support and improved bid workflows. Comfortable across web3, machine learning and IoT interests, he blends UI craftsmanship with systems-level thinking to optimize performance and scalability. His international experience includes an Erasmus term in Prague and roles across Latin America and Europe, reflecting a pragmatic, cross-cultural approach to building complex products.
11 years of coding experience
7 years of employment as a software developer
Ingeniería en Informática, Ingeniería en Informática at Universidad de Buenos AiresErasmus exchange semester, 7 degree courses approved, Erasmus exchange semester, 7 degree courses approved at České vysoké učení technické v Praze
Spanish, English
Stackoverflow
1reputation
0reached
0answers
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Github Skills (11)
uid10
javascript10
web-development10
front-end-development10
ui-design10
react10
html9
css9
typescripts8
typescript8
typescript-types8
Programming languages (7)
Github contributions (5)
decentraland/marketplace
Jan 2022 - Jan 2023
🏛️ Decentraland's NFT Marketplace
Role in this project:
Front-end Developer
Front-end DeveloperContributions:95 releases, 397 reviews, 140 commits in 1 year
Contributions summary:Juan primarily contributed to the development of the front-end components for the Decentraland marketplace. Their work involved implementing new features such as ENS support for the accounts page and adding confirm modals for bid-related actions. They also made UI improvements by adding new "manage" buttons to the name detail page, adjusting the MVMF banner, and implementing the new emote categories.
marketplacereactdappethereumblockchain
decentraland/marketplace-server
Jul 2023 - Mar 2025
A consumer of the dapps substreams output
Contributions:78 releases, 38 reviews, 239 PRs in 1 year 8 months
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