---
title: Flutter Developer at Happy Color
description: We are currently looking for a Flutter Developer for our flagship project, Happy Color.
---

# Flutter Developer

**Company:** Happy Color  
**Location:** Poland  
**Posted:** 2026-08-25  
**Apply by:** 2026-10-09

**Tags:** backend, android, ios, designer

[Apply / View original posting](https://t.me/Pol_relocation/56803)

## Job description

We are currently looking for a Flutter Developer for our flagship project, Happy Color.

Key Responsibilities:

Develop and maintain high-quality Flutter applications with a focus on performance, stability, and clean architecture.
Implement adaptive, responsive UI and complex animations with pixel-perfect precision.
Design modular and testable architectures.
Identify and fix performance bottlenecks (scrolling, rendering, rebuilds).
Collaborate closely with designers and backend engineers to deliver smooth UX across iOS and Android.
Continuously improve code quality through reviews, refactoring, and automated testing..

Requirements:

4+ years of Flutter/Dart experience with solid understanding of widget lifecycle, state management, and animation system.
Strong knowledge of Flutter SDK (animations, adaptive UI, rendering, performance tuning).
Proficiency in Dart (async programming, isolates, generics, mixins).
Experience building custom UI components, pixel-perfect layouts, and smooth 60/120 FPS animations.
Deep understanding of Bloc / Cubit / Provider and clean architectural principles (SOLID, Clean Architecture).
Hands-on experience with Flutter DevTools for performance profiling and optimization (scroll, rebuilds, memory).
Ability to integrate Firebase, analytics, in-app purchases, and push notifications.
Understanding of Android/iOS ecosystems and platform channels for native integrations.
Experience writing and maintaining unit and integration tests.

Apply now @iliasik

#hiring #flutter #Jobs #gamedev

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