Cristian Fonseca Comas

Led a 5-person team and reduced the development cycle by 50% using Agile methodologies and AWS optimization. Implemented an embedded gateway with fraud detection algorithms that drove a 670% payment retention increase and increased report sales by 300%.

Led B2C platform rebranding, implementing multi-authentication and real-time proctoring for 10K+ concurrent users. Improved security by reducing fraud attempts by 85% and increased performance by 40% through optimization and caching strategies.

Migrated a B2B platform from Vue 2 to Nuxt 3, completing an 18-month project 3 weeks ahead of schedule. Delivered rebranding results that increased enterprise client acquisition by 300% and reduced load time by 60%.

Contributed to React and Vue ecosystems and delivered 95% of features on time. Built an automated testing suite that reduced bug reports by 60%.

Collaborated with a 5-person team on a freelance project, contributing to frontend architecture decisions and performing PR reviews across React and Vue.js codebases. Optimized performance, reducing load times from 8 seconds to under 2 seconds.

Grade: Top 10% of class (90+ average)

Activities and societies: Programming competition participant.

Completed the Julio A. Mella pre-university program in Cuba (2016–2019), ranking in the top 10% of the class (90+ average) and participating in programming competitions.