Javi Javier

Email: hi@j4vi.comWebsite: j4vi.comPhone: (718)-913-4596Location: Brooklyn, NY

Versatile full-stack engineer who loves diving into new technologies and collaboration. 10+ years of experience working across the entire stack. Proven track record of joining small teams and making an immediate impact through adaptability and ownership.

Experience

Elton Cyber

June 2024 - January 2025

Full-stack Developer

Cybersecurity

  • Quickly ramped up on complex codebase with minimal documentation through self-directed learning and codebase exploration
  • Built full-stack features using Node.js, React, TypeScript, and PostgreSQL with rapid feedback cycles
  • Reduced technical debt by establishing automated testing and TypeScript validation while maintaining development velocity

Tofugu

June 2019 - June 2022

Lead Front-end Developer

WaniKani - Japanese Learning Platform (500k+ users)

  • Mastered complex legacy codebase built on Rails and deployed on Heroku with minimal documentation through peer discussions and systematic exploration
  • Worked closely with CTO to plan and execute migration from legacy stack to modern React/TypeScript architecture
  • Progressively expanded role from front-end to full-stack Rails and React development, developing:
    • cross-browser compatible Japanese audio player in React
    • advanced quiz answer checking and extensible hint system in JavaScript
    • updated Stripe subscription flows with React forms
  • Diagnosed and fixed production issues through database debugging and Rails, Redis and PostgreSQL

Tofugu.com - Learning Blog

  • Supported and maintained Middleman blog deployed on Netlify
  • Built Airtable to Markdown publishing tool that reduced content team's workflow
  • Built new Japanese Grammar section which achieved #1 Google ranking for Japanese grammar
  • Mentored a junior developer to implement new features and take over maintaining the codebase

Condé Nast

November 2014 - April 2019

Software Engineer

Engineering Lead (Sept - Nov 2017)

  • Led successful 3-month redesign of bonappetit.com, coordinating across engineering, design, and editorial teams
  • Improved key metrics while maintaining feature parity (PageSpeed 32 → 93, SpeedIndex 16,000 → 2,792)

Senior Software Engineer

  • Progressed from WordPress developer to React/Node.js engineer through self-directed learning on the job
  • Mastered complex Webpack configurations to optimize build performance
  • Rapidly launched two new Bon Appétit subbrands, Healthyish and Basically through customizing internal React component library and Node.js API
  • Built and maintained shared React components for a company-wide design system used across major publications (Vogue, GQ, Pitchfork)

Education

Ateneo de Manila University

BS Management Information Systems