About this role
Senior Unity Engineer
Locations: Tokyo
About us:
Deep expertise. Personal and Industry evolution. Impeccable craft. These are Limit Break’s founding principles.
Limit Break is founded by global industry leaders in mobile gaming. We are unlocking its potential beyond games to transform digital markets into real-world economies and digital worlds into vibrant communities who will take gaming economies for both players and traders to new limits. We combine the power of technology, and creative vision to create experiences that connect people from all corners of the globe.
Limit Break is backed by leading investors that include Buckley Ventures & Paradigm Ventures. The adoption rate and a number of public and private partnerships is proving it to be the next wave of technology of the future and Gaming is leading the way.
About the Role:
Unleash your potential at Limit Break as we seek an exceptional Unity 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: What you’ll do
Design, implement, and maintain robust gameplay systems in Unity (C#)
Collaborate with designers and artists to bring features to life
Design and implement modular, data-driven systems in Unity that can respond to live configuration and content changes.
Interface with our backend team to ensure smooth client-server communication
Contribute to architecture decisions and help mentor junior developers
Diagnose and resolve issues related to performance, crashes, and build size using Unity’s profiling and debugging tools
Take full ownership of features—seeing them through from concept to polish—and make them the best they can be
Qualifications: Who you are and what you’ve done
8+ years of professional experience in game development, 5+ years working in Unity.
Strong Unity and C# skills, with a deep understanding of the engine lifecycle.
Has shipped one or more live service games targeting mobile with Unity.
Confidently work within a large, established Unity codebase, refactoring and extending existing systems with minimal disruption.
A proactive mindset and pride in taking ownership of features from start to finish.
Strong understanding of Unity’s architecture, including best practices for MonoBehaviours, ScriptableObjects, Prefabs and Addressables.
Can work autonomously, but communicate clearly, and collaborate with other engineers, designers and artists.
Nice to have. What an ideal candidate looks like
Bilingual preferred in English and Japanese.
Knowledge of backend tech including GoLang, Redis, SQL, and Docker.
Experience with Free-to-play titles.
Familiarity with CI/CD pipelines.
Frequently Asked Questions
Is the salary disclosed for the Senior Unity Engineer position at limitbreak?
The salary for this Senior Unity Engineer role at limitbreak is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Unity Engineer position at limitbreak located?
This Senior Unity Engineer role at limitbreak is based in Tokyo. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior Unity Engineer role at limitbreak full-time or part-time?
This is listed as a Full time position. It is posted as a Senior Unity Engineer role in the Game Engineering department at limitbreak.
Which team or department does the Senior Unity Engineer at limitbreak belong to?
This Senior Unity Engineer position is part of the Game Engineering department at limitbreak. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Unity Engineer position at limitbreak?
Click the "Apply Now" button on this page. You will be redirected to limitbreak's official application portal hosted on lever where you can submit your application directly.
When was the Senior Unity Engineer job at limitbreak posted?
This Senior Unity Engineer position at limitbreak was posted on Nov 18, 2025. Apply as soon as possible — early applications are often reviewed first.