Senior Unity UI Engineer

Limit Break Chiyoda-ku, Tokyo April 22 2026
  • 💴 No salary range given
  • 🏢
    No remote
  • 🌏
    Apply from abroad
    Relocate to Japan
  • 💬
    No Japanese required
    Business English
  • 🧪
    Senior level
    5+ years experience required
DO YOU NEED MORE INFO?
ASK A QUESTION

About Limit Break

Limit Break Chiyoda-ku, Tokyo

Limit Break is a pioneer in mobile and Web3 gaming, combining blockchain technology, creative design, and community to reshape digital markets. Backed by investors like Buckley Ventures and Paradigm Ventures, it builds unforgettable experiences and invites talented people to help shape the future of gaming.

About the position

Unleash your potential at Limit Break as we seek an exceptional Unity UI Engineer to spearhead an exciting new venture! We are embarking on a groundbreaking journey to develop a cutting-edge, mid-core, 3D mobile game from concept to reality.

At the outset, you’ll collaborate closely with a small yet dynamic team to craft and refine the game’s prototype, ensuring alignment with executive stakeholders. As the project gains momentum, you’ll take charge of scaling the team from pre-production to full production, collaborating with leads and directors across various disciplines.

This role offers an inquisitive and driven individual a rare chance to shape the workflow and assemble a top-notch team for an ambitious gaming project. Join a passionate and experienced organization where bright minds thrive, and your dedication to gaming excellence will be celebrated.

You will have the opportunity to play an active role as a core member from the beginning of the team. Leave your mark on the gaming world and be part of an engaging, forward-looking team!

Responsibilities

  • Design, implement, and maintain clean, modular UI code and prefabs in Unity (UGUI)
  • Work closely with UX/UI designers and product teams to bring mockups to life with smooth interactions and animations as defined by a clear GDD and spec
  • Connect UI with gameplay, systems, and backend logic
  • Proactively optimize UI layout, responsiveness, and performance to ensure a seamless player experience

Requirements

  • 5-8 years of experience in game development, with a strong focus on Unity UI
  • Deep understanding of Unity’s UI systems: UGUI, Canvas system, layout groups, anchors, and resolution scaling
  • Strong understanding of Unity’s architecture, including best practices for MonoBehaviours, ScriptableObjects, Prefabs, Prefab Variants and Addressables
  • Comfortable working in a live service environment with frequent updates and UI iteration
  • A proactive mindset and pride in taking ownership of features from start to finish
  • Can work autonomously, but communicate clearly, and collaborate with other engineers, designers and artists

Nice to haves

While not specifically required, tell us if you have any of the following.

  • Bilingual preferred in English and Japanese
  • Has shipped one or more live service games targeting mobile with Unity
  • Can build scalable, data-driven UI (bonus if you’ve done live-ops features like events, shops, daily rewards)
  • SPINE / Unity 2D animation experience
  • Experience using Photoshop, and optimizing UI assets
  • Familiar with asynchronous server calls and handling dynamic response data in the UI
DO YOU NEED MORE INFO?
ASK A QUESTION

More jobs like this

We'll send you a digest of new English-friendly software developer jobs in Japan. Your email stays private, we don't share or sell it.