Diego Gonzalez Zapiain

Product Engineer • LOJIK Labs • UW-Madison '26

Building full-stack mobile and web apps with Expo, Supabase, and AI-driven architectures.

GitHub LinkedIn Email

1200+

Commits

85+

Migrations

Products

Edge Functions

Featured Projects

Mövee

Nightlife Coordination Platform

Real-time social app for planning multi-venue bar crawls with live chat and venue activity intelligence.

React Native Expo SDK 54 Supabase PostGIS

552 commits • 44 migrations • 31 Edge Functions

Case Study

Nudge

Cross-Platform Follow-Up Tracker

Personal CRM for tracking follow-ups with freemium billing across iOS, Android, and Web.

Expo Tamagui Supabase RevenueCat

97 commits • 41 migrations • 3 platforms

Case Study

QuokkaQ

AI Academic Q&A Platform

Full-stack AI-powered Q&A platform with discussion threads, citations, and instructor tools.

Next.js 15 Vercel AI SDK Radix UI

314 commits • Live demo

Live Demo

Ralphy

AI Coding Orchestrator

Autonomous CLI that runs AI assistants through task lists with parallel git worktree execution.

Bash Git GitHub API

2,057 lines • 4 AI engines

GitHub

Tech Stack

Mobile

React Native Expo SDK 54 NativeWind Reanimated

Frontend

React 19 Next.js 15 TanStack Query Tailwind CSS

Backend

Supabase Edge Functions PostGIS RLS Policies

AI/ML

OpenAI API Anthropic Vercel AI SDK

Tools

Git/GitHub Sentry Vercel TypeScript

About

I'm a Product Engineer and CS student at UW-Madison ('26), building full-stack mobile and web applications.

Currently founding LOJIK Labs, a product studio focused on shipping high-utility SaaS products with production-grade engineering practices.

When I'm not coding, I'm producing music in Logic Pro X, playing golf, or thinking about systems.

Let's Connect

Open to founding engineer roles and interesting projects. Currently based in Madison, WI.

Email LinkedIn GitHub

[email protected]