Marcelo Siqueira
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolMarcelo Siqueira is a Principal Engineer and independent music producer with 15 years building LLM-native products and end-to-end full-stack systems from backend architecture to UX. He has led frontend architecture and design systems at Amazon, Salesforce, and CloudKitchens, and single-handedly architected and shipped a production ATS as Rapha's CTO/Co‑founder. Marcelo blends creative and technical rigor—he produced the Shoggoth Symphony symphonic metal opera on streaming platforms while engineering the generative AI pipeline that powered composition, vocal production, and release workflows. His open-source contributions include front-end testing, dependency modernization, and structural refactors for component-based UI libraries, reflecting a focus on maintainability and robust testing. Based in Seattle, he pairs product-minded engineering with hands-on AI tooling and a knack for turning literary source material into polished, agent-driven creative systems.
15 years of coding experience
16 years of employment as a software developer
Bachelor, Information Systems, Bachelor, Information Systems at Faculdade Integrada do RecifeAssociate, Software Development, Associate, Software Development at Unibratec
English, Portuguese, Spanish
Stackoverflow
351reputation
25kreached
3answers
1question
Github Skills (18)
javascript10
clientside10
testing10
web-components9
custom-element9
web-framework8
app-framework8
application-framework8
unit-testing8
react6
ruby-on-rails6
bdd6
rspec6
hierarchy6
capybara6
Programming languages (8)
Github contributions (5)
riot/riot
Nov 2013 - Jun 2014
Simple and elegant component-based UI library
Role in this project:
Front-end Developer
Front-end DeveloperContributions:27 commits in 7 months
Contributions summary:Marcelo primarily contributed to the front-end aspects of the "Riot/Riot" repository, a component-based UI library. Their work focused on implementing unit tests for core functionalities like rendering and element wrapping, ensuring the library's robustness. They also reorganized project files and updated dependencies, improving the project's structure and maintainability. Furthermore, the user made changes to the test suite, which helped in creating a more effective testing process for the UI library.
customtagsreactcomponent-basedclient-sidejavascript
3den/J-MediaGalleries
Apr 2011 - Apr 2011
Contributions:6 commits in 13 days
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