Eduardo Cancino Zarate

About Eduardo Cancino Zarate

I\'m a Staff-level full-stack engineer with 20+ years building products at high-growth tech companies like CarGurus, Chewy, and GameStop. I specialize in frontend architecture, design systems, and developer tooling—the unglamorous but essential work that scales engineering organizations.What I Build:Over the past decade working in the US tech industry, I\'ve gone from shipping individual features to building organization-wide platforms that empower other engineers. At CarGurus, I owned the component library that standardized UI across the entire engineering org—moving from design chaos to consistency. I\'ve shipped core infrastructure: feature flag platforms, GraphQL microservices, HTTP client libraries, and developer tooling that reduced friction and accelerated shipping.My sweet spot is the space where frontend meets backend: building APIs that developers love, designing component libraries that teams actually use, optimizing Core Web Vitals at scale, and architecting micro-frontend solutions for large, complex product surfaces. I\'m equally comfortable mentoring junior engineers, participating in architecture reviews, or diving deep into performance optimization.Tech Stack (Current):React, Next.js, Remix, TypeScript, Node.js, NestJS, GraphQL, AWS (Lambda, DynamoDB, S3), Nx monorepos, Radix UI, testing frameworks, and whatever tools solve the problem at hand.Why Remote, Why Now:I\'m relocating to Mexico and actively seeking remote-first opportunities with US-based companies. I\'ve built my career on async collaboration, clear documentation, and writing code that explains itself—the fundamentals of distributed teams. I\'m looking for roles where I can have a real technical impact, not just contribute features. Staff or Senior IC positions where I can help shape engineering culture and product decisions.What I\'m Looking For:Remote roles from Mexico with US or international companies. Technical depth: architecture, infrastructure, developer experience, or platform engineering. Compensation range:$200K+. Opportunity to mentor and influence engineering practices.Get in Touch:Email: e••••••••@gmail.com | GitHub: github.com/ecancino

Experience

1. Senior Software Development Engineer

   CarGurus

   Feb 2023 — Present · Boston, MA, US

   Senior Software Development Engineer on the Frontend Platform and Insights teams — owning A/B testing (MVT) infrastructure, HTTP client platform, Remix platform layer, analytics, and the Chassis design system.• Built and owned the end-to-end MVT (A/B testing) platform — Remix SSR admin app (91 PRs), Java/Spring backend, and TypeScript Node.js client library (22 PRs) — enabling experimentation across every product surface at CarGurus.• Core contributor to the HTTP client monorepo (56 PRs): multi-package TypeScript/Node.js library on wretch + undici. Shipped auth-fetch (OAuth2), not-modified (ETag/LRU caching), circuit breakers, Pino/Sentry middleware — adopted org-wide as the HTTP standard.• Contributed 39 PRs to the shared Remix platform library: MVT middleware, OAuth2 auth, SSR Proxy, OTEL spans, and analytics UUID management into the shared Remix request lifecycle.• Led Snowplow analytics tracker instrumentation (13 PRs): Honeycomb tracing, Core Web Vitals metrics, OneTrust consent schemas, schema validation preventing data pipeline corruption.• 25 PRs to Chassis (React design system); led Showroom UI component extraction (55 PRs); built shared ESLint/Prettier/TypeScript config package; EU infrastructure migration for Header/Footer; authored ADRs driving cross-team alignment.500+ merged PRs · 60+ repos · 358 tickets closed · 71 bugs resolved

Skills

• Html5
• Linux System Administration
• Sass
• Mongodb
• Google Apps
• Reflux
• Angularjs
• Amazon S3
• Less
• React
• Css
• Jquery
• Php
• Cascading Style Sheets (Css)
• Zend Framework
• Red Hat Linux
• Amazon Rds
• Information Architecture
• Linux
• Express
• Flux
• Amazon Cloudfront
• Amazon Simpledb (Sdb)
• Google Analytics
• Amazon Ec2
• Google Adwords
• Amazon Web Services (Aws)
• Javascript
• Symfony
• Python
• Perl
• Google Api
• Node.js
• Mysql
• Solaris 8/9/10
• Xml
• Ubuntu
• Backbone.js
• Gruntjs