Guilherme Carreiro
Staff Engineer
I love the journey—understanding the context, learning new things, writing the code, and leaving bridges for developers who come later. My open‑source work is on GitHub under @karreiro. Any comments about that? Reach out!
Currently, I’m working on the evolution of Liquid, pushing enhancements across the language, the standard library, and the runtime. Prior to that, I led the DMN tooling team at Red Hat, where I empowered users to build decision models with no‑code tools.
When I’m not coding, I love spending time with my family, listening to music, drawing cartoons, and sometimes doing it all at once!
Recent posts
Open Source
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Liquid 2025 - Present
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Liquid language server 2023 - Present
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Shopify CLI 2021 - 2024
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DMN (tooling) 2018 - 2021
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Drools (tooling) 2016 - 2018
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Discourse (onebox) 2014
Work
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Shopify
Staff Developer 2023-07 - PresentSenior Developer 2021-10 - 2023-07
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Red Hat
Senior Software Engineer 2019-09 - 2021-09Software Engineer 2016-06 - 2019-08
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HE:labs
Programmer 2015-10 - 2016-06
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Dextra
Programmer 2012-09 - 2015-10
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CoffeeBean Technology
Junior Programmer 2011-10 - 2012-08
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DataTransit
Junior Programmer 2011-02 - 2011-09