Alfonso Casallas
Quality Control Associate
Bogota, RAP (Especial) Central, Colombia
Summary
👤
Senior🎓
Top SchoolAlfonso Casallas is a versatile systems engineer and front-end developer with 10 years of experience building and quality-assuring web products across e-commerce and digital media. Currently a Quality Control Associate at Platzi and a freelance systems engineer, he blends hands-on UI development (React/Next.js, TypeScript, Stencil) with meticulous content and release QA—reviewing slides, videos, subtitles, exams and landing pages end-to-end. At Globant he contributed to a high-performing digital store (>$5M sales window) and improved test coverage from 85% to 93%, demonstrating both product impact and engineering discipline. He pairs technical skills in CMS, Node.js, SSR and automated testing with practical workflow improvements and metrics-driven quality processes. Outside paid roles he volunteers teaching math and creates educational content on YouTube, reflecting a commitment to knowledge sharing and pedagogy. Based in Bogotá, he combines deep implementation experience with a user-centered approach to shipping reliable learning and commerce experiences.
10 years of coding experience
4 years of employment as a software developer
Ingeniería de sistemas, Desarrrollo Web y de software, Ingeniería de sistemas, Desarrrollo Web y de software at Pontificia Universidad JaverianaMaster en marketing digital y analítica Web, Business/Office Automation/Technology/Data Entry, Master en marketing digital y analítica Web, Business/Office Automation/Technology/Data Entry at Neetwork Business School
Spanish, English, Portuguese, Italian, Japanese
Github Skills (17)
git6
git-commit5
superhero-api5
del4
package4
npm3
javascript3
webservice2
mvc2
django2
ruby1
api-rest1
ruby-on-rails1
angular1
rest1
Programming languages (8)
Github contributions (5)
pochito427/pugstagram
Jun 2020 - May 2025
Contributions:8 pushes, 1 branch in 4 years 11 months
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