Andres Felipe Rojas Hernandez

Senior Frontend Engineer · Full-Stack

feliperojas.90.dev@gmail.com linkedin.com/in/felipe-rojas-49907630 github.com/felipe90 felipe90.github.io Location: Bogotá D.C., Colombia
WORK EXPERIENCE
Senior Frontend Engineer
Mercado Libre · Mercado Pago Credit Card
Jul 2021 — Feb 2026 4 yrs 7 mos
  • Directed development of mission-critical fintech backoffice applications for Mercado Pago Credit Card, handling settlement, reconciliation, and financial reporting modules processing $5M+ in daily transactions across LATAM with strict regulatory compliance (PCI-DSS, AML).
  • Pioneered the complete redesign of the primary payment dashboard serving 12M+ active users, improving conversion rates by 15% and significantly reducing drop-off in critical financial operations.
  • Implemented scalable fintech architectures with React 19, TypeScript, Node.js, and SSR, ensuring high availability, performance (Lighthouse 95+), and multi-region CI/CD pipelines meeting Mercado Libre enterprise standards.
  • Architected and maintained BFFs (Backend-for-Frontend) and REST APIs using Node.js/Express, optimizing data payload delivery for the frontend in scalable fintech architectures.
  • Integrated GitHub Copilot and LLMs into workflows to accelerate payment feature delivery, reduce technical debt, and iterate rapidly on evolving financial regulations in real-time.
  • Ensured Accessibility compliance across all money-movement interfaces, promoting financial inclusion for underserved LATAM users through accessible fintech design.
  • Collaborated with Compliance, Risk & Legal teams to integrate real-time security checks and data validation in backoffice interfaces (KYC, AML, fraud prevention).
  • React 19
  • TypeScript
  • Node.js
  • SSR/Next.js
  • Payment Systems
  • Fintech
  • CI/CD
  • PCI-DSS
  • GitHub Copilot
Frontend Developer (Web UI)
Globant
Sep 2016 — Jul 2021 4 yrs 10 mos
  • Engineered high-availability user interfaces for the Disney Cruise Line (Caribbean) with Angular and TypeScript, ensuring 99.9% uptime and top-tier UX for a platform serving millions of global guests.
  • Collaborated with the Wunderman Thompson (VML) team on frontend solutions for high-traffic global campaigns, focusing on load optimization and achieving a 30% improvement in Time-to-Interactive (TTI).
  • Orchestrated frontend development for fuel logistics clients, ensuring 100% architectural scalability and cross-browser coverage.
  • Applied Agile/Scrum methodologies in distributed international teams, continuously delivering over 50 successful sprints with high cadence and minimal critical bugs.
  • Angular
  • TypeScript
  • React
  • HTML5
  • CSS3 / SCSS
  • Agile
  • Performance Engineering
Frontend Developer
Domoti S.A.S
Jun 2016 — Sep 2016
  • Created interactive webapps using AngularJS, PHP, and Node.js for home automation and IoT solutions, enhancing real-time user control by 40%.
  • AngularJS
  • PHP
  • Node.js
Full-Stack Developer
Unusual Design
Aug 2015 — Jun 2016
  • Maintained and improved full-stack web platforms, integrating back-end and front-end for custom client solutions.
  • Built ByPeople, a curated network for developers and designers with over 10,000 resources (freebies, plugins, snippets) updated daily — bypeople.com.
  • PHP
  • JavaScript
  • Web Design
  • Full Stack
Web Developer
UNAB — Universidad Autónoma de Bucaramanga
2014
  • Constructed the institutional web platform for UNAB, supporting 20+ academic and administrative units using Drupal as the core CMS.
  • Drupal
  • PHP
  • CSS3
FEATURED PROJECTS
  • Poke-Global (2026) - Pokémon favorites Pokédex built with an AI-first approach: Vue 3, TypeScript, Pinia and Vite, with 243 unit tests and 10 e2e specs (Playwright) with CI. Deployed on Vercel. poke-global.vercel.app
  • Minder (2026) - Swipe-based rating SPA. Built with React 19, TypeScript, Vite, Zustand, and IMDb API. Deployed on Firebase. minder-vite2026.web.app
  • Vibe Watcher AI - Proactive monitoring script using Gemini CLI to document codebase changes in real-time. Open Source on GitHub.
Education
Systems Engineering Bogotá, Colombia · 2011 – 2016
Universidad Distrital Francisco José de Caldas