The responsibilities include developing system logic for Unity3D game projects and delivering high-quality code on time according to project plans. The ideal candidate should have experience in UI construction and optimization. The job involves creating and refining UI structures, contributing to the game's user interface, and ensuring an excellent player experience. The candidate should have experience working with Unity3D game projects and have the ability to deliver high-quality code on schedule. The candidate must be passionate about games and be able to handle work-related stress.