musa şahin
Independent product archive

Freelance projects

Products designed, engineered, and delivered independently.

01
Freelance · Lead developerTR / EN

Otomedik ↗

A bilingual marketplace for buying, selling, and renting vehicles, with a repair shop directory, community forum, mobile apps, admin panel, and status service.

  • Next.js 14
  • Express
  • TypeScript
  • MongoDB
  • Expo
  • Redis
ArchitectureWeb + API + Mobile
02
Freelance · Full-stackB2B SaaS

Restaurant QR SaaS ↗

An end-to-end restaurant platform with AI-assisted menu creation, multi-tenant public menus, and a real-time Kanban order workflow.

  • React
  • Vite
  • NestJS
  • MongoDB
  • OpenAI
  • Web Audio
Product modelMulti-tenant SaaS
About the work

Engineer by training.
Frontend developer by obsession.

I turn complex product requirements into maintainable interfaces, reusable systems, and dependable releases.

My recent work ranges from introducing TypeScript into legacy applications and building shared Cypress infrastructure to shipping mobile apps, banking portals, marketplace APIs, design systems, and multilingual products with RTL support.

4+
Years in production teams
6
Product domains
TR/EN
Multilingual delivery
Chronology

Career & leadership

  1. Senior Frontend Developer · ZZGTech

    Frontend ownership across analytics, advertising technology, and AI communication products.

    Signalsight

    Leading frontend development for an analytics and ads-conversion platform connecting websites, CRMs, pixels, lead forms, and advertising networks. Introduced TypeScript, refactored the legacy codebase, and created shared Cypress testing infrastructure.

    TypeScript · Cypress · CRM APIs · GTM · Ads APIs

    MessageGate AI

    Delivered the iOS and Android app with live chat, social channel connections, push notifications, in-app purchases, deep links, analytics, and crash reporting.

    Expo · React Native · Firebase · Socket.IO · Sentry · IAP
  2. Frontend Developer · Manigo

    Built Banking-as-a-Service products, back-office and business portals, payments and KYC/KYB flows, a private NPM package, and shared Cypress infrastructure.

  3. Frontend Developer · OTO

    Created a reusable design system for a shipping SaaS, integrated real-time maps and authentication, delivered Arabic/English RTL support, and built reporting tools.