Juan Cubillos
Full Stack Web Developer at Freelance Full-stack Developer
Madrid, Colombia
Summary
🤩
Rockstar🎓
Top SchoolJuan Cubillos is a full-stack web developer with seven years of engineering experience who blends a formal background in chemical and mechanical engineering with hands-on Rails and JavaScript development. He has shipped 25+ projects, contributed front-end and back-end features (including tests) to the well-known Discourse open-source forum, and has production experience integrating payments and accounting flows like an Affirm-to-Intacct pipeline. Comfortable pair-programming remotely 40+ hours weekly, Juan pairs strong mathematical instincts from extracurricular math study with practical skills in databases, testing, and secure Rails practices. He’s delivered measurable business impact—reducing document processing time by 17% and streamlining product/guest systems—while mentoring peers and giving internal security talks. Based in Madrid, he’s actively seeking remote opportunities that leverage both his systems thinking and full-stack execution.
7 years of coding experience
2 years of employment as a software developer
Bachelor of Engineering, Mechanical Engineer, Bachelor of Engineering, Mechanical Engineer at Universidad de los Andes - ColombiaFull-Stack Web Developer, Software Development, Full-Stack Web Developer, Software Development at MicroverseUniversidad de los Andes
Spanish, English
Github Skills (9)
ruby-rails10
rails10
discourse10
ruby10
ember9
javascript9
testing8
forum8
postgresql7
Programming languages (7)
Github contributions (5)
discourse/discourse
Apr 2023 - Apr 2025
A platform for community discussion. Free, open, simple.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:8 reviews, 48 PRs, 68 pushes in 1 year 11 months
Contributions summary:Juan primarily contributed to the Discourse platform, focusing on front-end and back-end features. Their commits showcase work on implementing new features like tag limitations in email subjects and addressing bugs related to subcategories. They also demonstrate proficiency in testing the implemented features. The user made significant changes to both the front-end (JavaScript, Ember) and back-end (Ruby on Rails) of the Discourse platform.
discourserailsforumjavascriptruby
jdmartinez1062/Building-with-Responsive-Design
Sep 2019 - Sep 2020
Contributions:26 commits, 2 PRs, 27 pushes in 1 year
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