Aubin Djou

Mobile Product Engineer

eyengadjou@gmail.com · Portfolio: acelestdev.me · github.com/acelest · linkedin.com/in/ledeveloppeuraubindjou
Asia (India) · Open to onsite or remote work · French (native), English (professional)

Profile

Mobile Product Engineer building social-accountability systems for iOS.
Shipped Boost Habit to the App Store with a 40% install-to-activation conversion.
Stack: React Native (Expo) · Supabase · TypeScript · RevenueCat · CI/CD with EAS Pro.

Projects

Boost Habit - iOS Social Accountability App

- Present

React Native (Expo) · Supabase · TypeScript · Zustand · RevenueCat · EAS Pro · PostHog · GCP

  • Architected a Pacts system - multi-user accountability contracts with shared activity feeds, granular RLS policies controlling per-member visibility, and Supabase Storage buckets for image, video and voice proof per pact.
  • Implemented Apple & Google OAuth via Supabase Auth; enforced row-level security across all tables for strict multi-tenant data isolation.
  • Shipped to App Store with EAS Pro - automated TestFlight pipeline on Git push, OTA updates via Expo Updates, zero manual store resubmissions for patch releases.
  • Integrated PostHog funnel analytics tracking 40% install-to-activation (vs ~25% typical productivity baseline).
  • 2,000+ App Store impressions · 120+ active users (early stage) · Live on App Store - Launched Jan 14, 2026

Experience

Patcelest - Lead Developer

- · Cameroon (Hybrid)

Laravel · Vue.js · Next.js · MySQL · Linux

  • Led end-to-end delivery of Liebe Hotel - a property management SaaS with multi-domain architecture, tenant isolation, booking and billing modules for local hospitality clients.
  • Owned architecture, development, Linux VPS deployment, and client delivery.

IT Novation - Backend Intern

- · Cameroon

Laravel · MySQL

  • Built a pharmacy management system from scratch: inventory tracking, user roles, admin interface, optimized SQL queries, secured routes.

Freelance - Web & Mobile Developer

- Present

  • Delivered web and mobile projects for clients (Next.js, Vue.js, Django, Laravel) and open-source work.

Skills

Mobile React Native · Expo (New Architecture) · EAS Pro · Expo Router · iOS deployment

Backend Supabase (Auth · RLS · Edge Functions · Storage) · PostgreSQL · Node.js · Laravel

Frontend Next.js · TypeScript · Zustand · TanStack Query · React

Cloud & Ops GCP · Linux · Git · CI/CD pipelines · TestFlight automation · Docker (basics)

Analytics PostHog · Funnel tracking · A/B testing setup

Education

Master of Computer Applications (MCA) - Cloud Computing

KL University · India · -

KL University

Focus: Cloud Architectures · Serverless · Security

Major Project: Boost Habit (production app)