Fırat Karaca

Projects

Products I have built for companies, clients and myself.

Featured projects

Mobile app and backend, iOS and Android

Cross-platform language-learning app

Lessons, real-time chat, voice and video calls, push notifications and subscriptions in one React Native app, backed by a Node.js API on PostgreSQL, Redis and AWS that I designed and built end to end.

React Native, TypeScript, Reanimated 4, Zustand, Node.js

In progress

Native Android app

Delta X, an Android POS with NFC payments

A point-of-sale app for Android written in Kotlin with Jetpack Compose and MVVM, taking contactless payments over NFC right at the counter.

Kotlin, Jetpack Compose, MVVM, NFC, REST APIs

Web application

Offline-first retail order management

An order system that keeps working when the network does not. Orders are saved locally in IndexedDB and sync on their own once the connection returns.

React.js, IndexedDB, PHP, MySQL

Backend, automation and APIs

Warehouse inventory automation and order APIs

REST APIs for e-commerce order processing and warehouse operations, an automated inventory tracking system and reporting scripts, with measured improvements in speed, accuracy and workload.

REST APIs, PHP, MySQL, Automation scripts

Web and desktop app

StoreShot Studio, an app store screenshot editor

A browser-based editor for arranging and exporting store-ready app screenshots without design tools, also shipped as an Electron desktop app from the same codebase.

React, TypeScript, Electron

Web and desktop app

Encrypted password manager

A password manager that only ever stores credentials in encrypted form, available on the web and as an Electron desktop app, built for fast search and one-click copy.

React, TypeScript, Electron

More client work

  • Defense industry dashboard

    Freelance

    Secure data visualization with real-time anomaly detection that surfaces irregular data patterns to operators as they happen.

    React.js, Express.js

  • Construction site appointment platform

    Freelance

    Web scheduling and reservations that replaced manual site booking with a self-service flow.

    React.js, Node.js, Express.js, MongoDB

  • Retail order tracking portal

    Freelance

    Online order tracking and management that gives retail clients a single view of order status.

    React.js, Node.js, MongoDB

  • Wellness and mindfulness platform

    Freelance

    Content and session tracking for mental well-being.

    JavaScript, PHP, MySQL

  • Real-time KPI dashboards

    Quorion GmbH

    Live business metrics for stakeholders, replacing manually compiled periodic reports.

    React.js, Context API

  • Template upload and brochure designer

    Quorion GmbH

    Upload and manage templates, then drag products onto them to produce brochures without Photoshop or similar tools.

    React.js, PHP