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Senior Mobile Game Developer (Unity/C#) - Fully Remote

Vietnam
Full Remote
This Job is No Longer Active This position is no longer accepting applications
AI Summary

Develop and optimize high-performance mobile games in Unity (C#) for iOS and Android, collaborating with cross-functional teams to implement gameplay systems, UI, and visual effects. Focus on performance, bug resolution, and shipping polished builds while maintaining best practices. Requires 2+ years of Unity experience with a strong foundation in C# and mobile optimization.

Key Highlights
Fully remote, global team with creative freedom and flexible work arrangements
Ownership-driven culture emphasizing craftsmanship and game design depth
Collaborative environment with cross-functional teams across time zones
Key Responsibilities
Develop and maintain mobile games using Unity (C#) for iOS and Android platforms
Implement gameplay systems, user interfaces, animations, and visual effects
Optimize performance, memory usage, and loading times for mobile devices
Build, test, and release iOS and Android builds while ensuring smooth functionality
Collaborate with artists, designers, and producers in a remote, multi-time-zone environment
Identify and resolve bugs, implement feedback, and refine features based on testing results

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Technical Skills Required
Unity C# Mobile Game Development
Benefits & Perks
Fully remote work with flexible schedule
Creative freedom and innovation in game development
Professional growth opportunities and skill advancement

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Nice to Have
Experience with Shader Graph, URP, or Addressables
Knowledge of ad networks and analytics SDKs (e.g., AppLovin, Unity Ads, Firebase, Adjust)
Experience with multiplayer integrations (e.g., Firebase, PlayFab, Photon)
Tool or editor scripting experience

Job Description

About Happy Lemon Games

At Happy Lemon Games, we're a global, fully remote studio dedicated to crafting immersive, original games played by millions around the world.

Our culture is built on creativity, ownership, and craftsmanship, every team member plays a key role in shaping experiences that stand out for their gameplay depth and visual polish.

About the Role

We're looking for a Mobile Game Developer who's passionate about turning creative concepts into engaging, high-performance mobile games.

You'll work in Unity (C#) alongside artists, designers and producers to bring gameplay features, UI and effects to life, and to ship smooth builds on iOS and Android.

What You'll Do

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Job Overview
Posted Sep 23, 2026
Employment Full-time
Experience Entry level
Location Vietnam
Category Mobile
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