Guadalajara · open to remote

Full-Stack & Product Systems Engineer

Pablo Armenta

4.5 years at Envato. React, TypeScript, Ruby on Rails. Core Web Vitals, A/B experimentation, BFF architecture for 500K+ subscribers.

Experience

Where I've worked

Envato Elements

Software Engineer

Apr 2024 to Mar 2026

  • Owned end-to-end delivery of the flagship For You personalized pages, composing shared design-system components and architecting a custom BFF aggregation layer that boosted click-through rate by 30% for 500K+ subscribers
  • Led Core Web Vitals optimization (LCP, INP) on legacy, dependency-locked pages, lifting desktop Lighthouse from the 60s to 90+ and mobile from the 20s to the 50s
  • Shipped high-urgency marketing and legal landing pages under ≤2-day deadlines with pixel-perfect responsive layouts and strict A11y compliance
  • Engineered an Elasticsearch lookup engine to index essential item metadata, resolving query bottlenecks and cutting server costs and latency
  • Operated across the multi-year codebase migration from Flow/JS to React and TypeScript, authoring typed interfaces and refactoring legacy Rails controllers
  • Managed AWS S3 image assets for 100+ hand-crafted segment collections supporting active personalization campaigns
ReactTypeScriptFlowJSRuby on RailsPostgreSQLAWS S3ElasticsearchGitCI/CD (GitHub Actions)

Placeit by Envato

Software Engineer

Nov 2021 to Apr 2024

  • Redesigned the main site and 5 core subscriber pages using Envato's proprietary Neon SPA framework and Ruby on Rails APIs, serving 123K+ monthly active users
  • Developed and optimized a custom Redis cache layer for the main recommendation feed, bypassing heavy database lookups to keep page loads fast
  • Designed and ran 50+ concurrent server-side and client-side A/B experiments on a custom in-house testing platform, reducing subscriber churn by 15%
  • Built a real-time ambient color detection system using raw canvas scripting that adapted the surrounding UI to match a video's dominant tones
  • Built GDPR-compliant user tracking and telemetry pipelines (Segment, Cookiebot) enabling high-fidelity churn-risk and billing-tier segmentation
  • Grew from frontend into full-stack, taking ownership of Rails backend work across the product
Ruby on RailsRedisAWS S3Neon SPA FrameworkHTML5 CanvasJavaScriptGit

UAG

Web Developer

Feb to Aug 2019

  • Built an internal ASP.NET Core web tool to automate promotional image generation.
ASP.NET CoreC#SQL ServerGit

Education & Certifications

B.S. Software Engineering

Universidad Autónoma de Guadalajara, 2017–2021

Cambridge C2 Proficiency

English, highest level certification

Gray Hat Offensive Security

Ethical hacking and penetration testing

IBM Hackapalooza

4th place, competitive hackathon

Projects

Things I've built

This Portfolio

A glassmorphism portfolio with procedural WebGL shader orbs, tiered rendering (WebGL → CSS → static based on device capability), scroll-driven GSAP animations with RAF lifecycle management, and an adaptive OKLCH color system across light and dark modes. Lighthouse 98-100, fully static build.

Next.js 16TypeScriptTailwind v4WebGLGSAPOKLCHVercel
View source

MELOMANO

Song aggregator with a Django REST microservice for Camelot-compatible harmonic recommendations and ±5% BPM ranges. Next.js frontend over a PostgreSQL cache, with Django TestCase and Vitest covering the API surface.

Next.js 16TypeScriptPython (Django/DRF)Drizzle ORMNeon PostgresVitest
melomano.dev

About Me

I like building things that feel good to use.

I spent 4.5 years at Envato delivering page-level features across Placeit and Envato Elements, two products with 600K+ combined subscribers. I owned the For You personalized pages at both products, architected a BFF aggregation layer for 500K+ users, and navigated a multi-year Flow/JS to React and TypeScript codebase migration.

My stack is React, TypeScript, Next.js, Ruby on Rails, and Node.js. I focus on Core Web Vitals, design systems, and the small details that make an interface feel right.

Spanish(Native)
English(C2 Cambridge)
Japanese(Basic)

Based in Guadalajara, MX. Open to remote opportunities worldwide.

Get in touch

I'm looking for my next full-time remote role. If you think I could be a good fit, I'd love to talk.

Or email me directly:pablocesararmenta@gmail.com
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