Ender Puentes

Flywheel Studio · flywheel.so

Active product · mentorship, starters & team retros

I lead a large-scale workflow orchestration and notifications platform with multiple external integrators, which I worked on from the ground up (Next.js 16 RSC, Supabase RPC-only backend, modular async engine). I implemented the CI/CD pipeline, automating deploys and PR reviews, and published npm SDKs alongside a Firebase→relational migration. Today I mentor developers, define code starters, establish engineering standards, and run team retros.

TypeScript · Node.js · Python · Next.js 16 · Supabase · PostgreSQL · Firebase · Sanity · Stripe

Aerolab · aerolab.us

Scaled team delivery without losing stability

Worked with multidisciplinary teams on developing and integrating multiple products: enterprise Salesforce platform, D3.js newspaper-style chart MVP from a complex legacy refactor, i18n university CMS on Strapi, and mutual-fund calculator with GitHub Actions cron feeds and Sanity persistence. Led select builds with internal and external teams, plus formal CI/CD with ephemeral per-branch environments and contribution workflows.

Next.js · Node.js · TypeScript · Salesforce · Strapi · Sanity · D3.js · Docker · PostgreSQL · GitHub Actions

Libre Opción · libreopcion.com

~20× concurrent user growth

Nearly three years on a single e-commerce marketplace product: migrated a performance-struggling monolith into microservices (central API, import server, task runner, payment/shipping/notification bridges), rebuilt UI/UX from scratch, and scaled from ~50 to ~1,000 concurrent users across infrastructure I built from zero.

Nuxt.js · Node.js · PHP · Laravel · Python · MariaDB · Apache · Docker

Synapsis CI · synapsis.com.ar

Frontend to full stack in 18 months

Evolved from responsive frontend sites to full-stack ownership: maintained a custom CodeIgniter CMS, shipped a multi-domain page builder with centralized visual config and cross-domain content replication, and ran GSuite plus hosting-provider services.

PHP · MySQL · CodeIgniter · Bootstrap · jQuery · SCSS · Apache · cPanel

CoffeeCode

First end-to-end product ownership

Co-founded a small studio delivering responsive websites and email-marketing campaigns compatible with major email clients — my first step from freelance frontend work into building products end to end.

WordPress · HTML · Bootstrap · jQuery · JavaScript