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Senior Backend Engineer, Core Services (Game)
Tokyo
Engineering – Core Services /
Full-time /
On-site
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Senior Backend Engineer, Core Services (Game)
Location: Tokyo, Japan
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:
Limit Break is looking for experienced backend systems software engineers to join our Core Services team. As a senior member of the team, you will be in a position to influence our best practices and processes, and to create a truly customer-driven culture from the ground up.
This is a unique opportunity for an intellectually curious and hardworking team player to help the organization truly shape engineering in blockchain technologies.
Responsibilities:
- Design, implement, and maintain backend services for a live mobile game using Go, gRPC, REST, protobuf, MySQL, Redis, and service-to-service APIs.
- Own gameplay-adjacent backend systems such as inventory, IAP, live events, leaderboards, messaging, notifications, guild/social systems, scheduling, player state, and live configuration.
- Build systems that are safe under liveops pressure: remote config, event launches, timed campaigns, content updates, rollbacks, partial failures, and client/server version mismatches.
- Design APIs and data flows that are backwards compatible with live mobile clients and resilient to retries, duplicate requests, bad network conditions, and stale client state.
- Diagnose and resolve production issues involving logs, metrics, traces, database state, Redis state, service health, client reports, and live player impact.
- Collaborate closely with Unity client engineers, design, QA, production, data, and product leadership to turn ambiguous feature goals into reliable live-service behavior.
- Improve backend architecture, operational visibility, test coverage, deployment safety, and engineering quality through thoughtful design and code review.
- Participate in incident response and post-launch support for live features, especially during high-volume events, releases, and time-sensitive campaigns.
Requirements. Who you are and what you've done.
- B.S. in Computer Science, or a related field
- 5+ years of software engineering experience, ideally in backend/server-side development with production services at high scale
- Experience architecting complex software solutions
- Experience across the full software development lifecycle from requirements definition through testing and deployment
- Proficient with at least two programming languages, including one of the following: Go, Node.js, C#
- Understanding of relational databases and basic unix networking (files, sockets)
- Experience with Docker and containerization
- Strong sense of initiative and ownership
- A "roll up your sleeves" mindset to get the job done
- Proficiency in English
What an ideal candidate looks like:
- Experience with building online and fast moving mobile games
- Experience with AWS, Amazon EKS, and building cloud native applications
- Experience with Unity Game Development
- Experience working with Unity client teams
- Experience with full stack development
Apply now:
If you are confident, driven and are looking for an exciting role, this job could be a great opportunity for you.
Apply to [email protected] to explore this new opportunity.
This is an international blockchain gaming company that operates regionally, and is opening offices in multiple locations around the globe.
We value diversity at our company. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or any other applicable legally protected characteristics in the location in which the candidate is applying.
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