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n3t0cfg/README.md

Ernesto Gonzalez

Software Engineer @ Zumba | DDD | Clean Architecture | Maintainable systems at scale

LinkedIn  |  Houston, TX

PHP Python TypeScript Vue.js React Native MySQL Redis Docker


I build consumer-facing web and mobile products across the stack, with a bias toward systems that are understandable after they ship.

For the last several years I have worked at Zumba, helping scale platforms used by millions of people in 186 countries. My work spans subscription and checkout flows, OAuth infrastructure, partner integrations, mobile APIs, fitness data pipelines, React Native app architecture, and internal tooling for engineering teams.

I care about Domain-Driven Design, Clean Architecture, and team practices that let people move quickly without making the codebase harder to live in. I also treat AI-assisted development as a core engineering skill, using tools like Cursor, GitHub Copilot, and Claude Code to improve delivery, code review, onboarding, and architecture work.

Technical Range

Architecture and backend: System Architecture, DDD, Clean Architecture, API Development, OAuth, Back-End Web Development, Unit Testing, PHPUnit, Continuous Delivery, Code Review.

Languages and frameworks: PHP, CakePHP, Python, TypeScript, JavaScript, Vue.js, React Native, WordPress.

Data, infrastructure, and product tools: MySQL, Redis, Docker, Linux, Git, Stripe, Mixpanel, Algolia, Firebase, Cloudflare, Tailscale, Jira.

Product areas: Subscriptions, payments, retention, partner integrations, webhooks, mobile APIs, headless CMS, analytics, localization, and live streaming.

Selected Highlights

  • Helped migrate Zumba's consumer mobile app from native code to React Native as part of a 7-person cross-functional team, shipped to production in early 2026.
  • Designed app architecture with LLM context in mind and built custom Cursor workflows for ticket-driven development and PR handling.
  • Owned checkout and subscription experiences end to end, including personalized flows, pricing tests, cancellation retention, and Stripe automation.
  • Migrated OAuth token storage from MongoDB to Redis with a zero-downtime transition strategy.
  • Built and maintained consumer app APIs for on-demand video, profiles, scheduling, stats, reminders, and fitness data ingestion.
  • Integrated Zoom and live-streaming workflows during COVID-19 to support online instructor classes, student management, and Stripe-based payouts.
  • Built an automated translation system that saved roughly 40 engineering hours per week.

How I Think

  • Model the domain clearly. Good names and boundaries make every future change cheaper.
  • Optimize for maintainers. The person debugging production later deserves empathy today.
  • Ship in small, reversible steps. Big migrations are safer when the system can run old and new paths together.
  • Use AI as leverage, not autopilot. The best workflows keep humans in charge of design, review, and judgment.
  • Leave useful trails. Tests, docs, and pull request context are part of the product.

Currently Interested In

  • Senior engineering roles with meaningful product, architecture, and team impact.
  • Developer experience, internal tools, and AI-native engineering workflows.
  • Maintainable systems for subscriptions, integrations, and consumer mobile products.

GitHub Pulse

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Languages

  • Spanish: native or bilingual
  • English: full professional proficiency

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