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Twine

Game Developer – Remote

Remote

United kingdom

Freelance

19-11-2025

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Skills

Unity Attention to detail Android

Job Specifications

This role is for a UK-based Unity developer to deliver a mobile application for iOS and Android featuring a 2D animated character and seamless AI integration. The project centers on building a user-friendly app that incorporates pre-rigged Spine 2D animations, a simple and intuitive interface, and a chat system powered by an external AI API. The developer will be responsible for integrating provided character artwork and animations, constructing mobile-optimized UI screens (including home, settings, and a small shop), and implementing audio input/output functionality. Additional responsibilities include managing local app state (such as XP, energy, and purchased items), integrating rewarded ads and in-app subscriptions, and ensuring robust connectivity with a backend chat endpoint via REST API. The initial build is focused and does not require mini-games, but there is potential for ongoing monthly work to add features and improvements. All necessary assets and UI mockups will be supplied, and the ideal candidate will be able to deliver a polished, maintainable app and provide post-launch support.

Responsibilities

Integrate Spine 2D character rigs and animations into Unity for mobile platforms
Develop and implement mobile-friendly UI screens (home, settings, shop) based on provided mockups
Set up and manage audio input and output within the app
Handle local app state management, including XP, energy, and inventory tracking
Integrate rewarded ads and in-app subscription functionality
Connect the app to an external AI-powered chat endpoint via REST API
Ensure smooth performance and compatibility across iOS and Android devices
Provide regular updates during development and support post-launch maintenance
Collaborate on future feature additions and improvements as needed

Skills And Requirements

Proven experience developing and shipping Unity mobile apps for iOS and Android
Strong proficiency with Spine 2D animation integration in Unity
Solid understanding of mobile UI/UX best practices and implementation
Experience with audio input/output in Unity applications
Familiarity with local state management and in-app purchase systems
Demonstrated ability to integrate rewarded ads and subscription models
Skilled in REST API integration and handling external endpoints
Ability to work independently and communicate progress effectively
Based in the UK and available for ongoing collaboration
Attention to detail, reliability, and a commitment to delivering high-quality, maintainable code

About Twine

Twine is a leading freelance marketplace connecting top freelancers, consultants, and contractors with companies needing creative and tech expertise. Trusted by Fortune 500 companies and innovative startups alike, Twine enables companies to scale their teams globally.

Our Mission

Twine's mission is to empower creators and businesses to thrive in an AI-driven, freelance-first world.

About the Company

Twine is home to a network of over 750k+ freelance experts and 50k+ clients across 195 countries. We connect talented people with flexible work and help businesses find the perfect expert for any project - big or small. For Businesses & Clients: Tired of endlessly searching for the right talent? We've got you covered. Twine makes it easy to find and hire freelance experts in tech, creative, AI and more. From software developers and graphic designers to animators and content creators. Our global network means you can hire the... Know more