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Arian Hassani

@arianhassani

Mobile engineer building React Native and TypeScript apps, including a real-time messenger with encrypted messaging and matchmaking.

Turkey

Message

I’ve delivered 40+ projects as a freelance game and full-stack developer, from concept to shipping build. My work includes a React Native real-time messenger with matchmaking, group chats, and encrypted messaging over a raw WebSocket backend.

I built and supported products across mobile, games, and backend systems, including a Google Play task timer and multiplayer games shipped on iOS and Android. I care about performance on real devices, clean architecture, and documentation for other developers.

Experience

Work history, roles, and key accomplishments

Current

Gotta Run (Android)

Current

Solo Developer

Jun 2026 - Present (5 months)

Developed a task timer app for Android using Kotlin and Jetpack Compose, published on Google Play. Implemented foreground service timers and managed the full Play Console release process.

Kotlin Jetpack Compose Android Google Play Foreground Services

Current

Real-Time Messenger App

Current

Solo Developer

Jan 2025 - Present (1 year 10 months)

Developed a real-time mobile messenger with matchmaking, friends, group chats, encrypted messaging, and voice/video over a raw WebSocket backend. Designed the data model, REST and socket layers, and event flow for consistent state across concurrent sessions.

NodeJS TypeScript MongoDB WebSockets Express React Native Expo Stripe AES CBC MVVM

Current

Freelance Game & Full-Stack Developer

Current

Self Employed

Aug 2019 - Present (7 years 3 months)

Delivered 40+ projects from concept to shipping build for international clients, strongest in tools and gameplay programming. Built backends and web products end to end on Node.js, TypeScript, NestJS, React, React Native and native Android.

Unreal Engine Blue Print C++Unity NodeJS TypeScript NestJS React React Native Android REST WebSockets Project Management

Staff Management Suite

Solo Developer

Oct 2025 - Apr 2026 (6 months)

Developed an internal operations platform with two linked web apps for people management, tasks, payments, and cloud storage. Migrated backend to NestJS, containerized with Docker, and deployed to AWS ECS Fargate with CI/CD.

NodeJS TypeScript NestJS MongoDB React MUI AWS ECS Fargate Docker GitHub Actions REST

Community Events App UI

Solo Developer

Jan 2024 - Dec 2024 (11 months)

Implemented a pixel-accurate UI for a community event-management app from a Figma design, including onboarding, auth, profile, event feed, and settings screens. Delivered exactly as scoped with shared theme tokens and working navigation.

React Native Expo React Navigation Figma UI Development

Live Poker Madness

Solo Developer

Jan 2024 - Dec 2024 (11 months)

Built and operated a free-to-play mobile poker game end to end, including UE5 C++ client, Node.js matchmaking server, and Express/MongoDB backend. Managed production for a year as the sole on-call engineer.

Unreal Engine 5 C++NodeJS Express MongoDB WebSockets Linux JWT KYC Payments

Unreal Engine Developer

More Than Just A Game

Mar 2023 - Dec 2024 (1 year 9 months)

Two-year contract as the sole game developer in a small remote studio, shipping 10 game projects across casino and casual titles. Built complete multiplayer products end to end, including Unreal client, C++ gameplay, server-side replication and supporting backend.

Unreal Engine C++Unity C#Multiplayer Gaming Game Development Backend Development

Four Slots Casino

Solo Developer

Jan 2023 - Dec 2023 (11 months)

Created a mobile slots product in Unreal Engine 5 with a four-game lobby, including reels, paylines, bonus features, and a cross-game jackpot pool. Integrated mobile ad SDKs and streamed assets to manage memory.

Unreal Engine 5 Blue Print UMG Mobile Ads SDKs REST Asset Streaming

Shared-Expense Tracker

Solo Developer

Jan 2023 - Dec 2023 (11 months)

Built a full-stack group expense tracker with React Native, Expo, Node.js, Express, and MongoDB, featuring JWT-authenticated REST and cross-channel invitations. Implemented a data model for efficient credit balances and atomic updates.