Julián Toledano
Chain Tester at Injective Labs
Madrid, Community of Madrid, Spain
Summary
🤩
Rockstar🎓
Top SchoolJulián Toledano is a cloud-focused Chain Tester and Golang engineer with 11 years of experience building reliable, high-availability systems from cybersecurity platforms to blockchain infrastructure. Based in Madrid, he has moved from real-time fraud detection and ELK/Prometheus observability work at Minsait to contributing backend improvements and Rosetta API integrations in the prominent cosmos-sdk project and commercial roles at Zondax and Injective Labs. He combines hands-on microservices and DevOps expertise with a strong practical background in API design, error handling, and refactoring for maintainability. Julián’s profile blends production-grade testing and observability skills with open-source contributions to a major blockchain framework, reflecting an ability to operate at the intersection of distributed systems and developer tooling.
10 years of coding experience
2 years of employment as a software developer
Bachelor in Software Engineering. Engineering, Bachelor in Software Engineering. Engineering at U-tad
English
Github Skills (9)
cosmos-sdk10
go10
api10
apidoc10
blockchain10
tendermint9
openapi8
cryptocurrency7
golang7
Programming languages (5)
Github contributions (5)
cosmos/cosmos-sdk
Nov 2022 - Jan 2023
:chains: A Framework for Building High Value Public Blockchains :sparkles:
Role in this project:
Back-end Developer
Back-end DeveloperContributions:121 reviews, 7 commits, 95 PRs in 2 months
Contributions summary:Julián primarily contributed to the Cosmos SDK codebase, focusing on the implementation and improvement of the Rosetta API integration. They addressed issues related to block identifier population, error handling, and the separation of service components. Furthermore, the user worked on the Open API documentation for the Rosetta API and removed the rosetta configuration from the server start. These changes involved modifying core functionality and refactoring the codebase to improve maintainability and documentation.
golangcosmos-sdkblockchainchainscryptocurrency
cosmos/rosetta
Jul 2023 - Feb 2025
Rosetta implementation for cosmos zones
Contributions:6 releases, 15 reviews, 37 PRs in 1 year 7 months
coinbasecosmoscosmos-sdkrosetta
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