Senior Backend Developer (Java) - Mobile Game Platform

About the Role

We are hiring a Senior Backend Developer to maintain and extend the backend for a live mobile game (Cocos C++ client + Java services). You will work on gameplay APIs, player data integrity, ranking systems, payments, and platform services in a high-traffic production environment.

What Success Looks Like

• You can safely ship new game operations without breaking existing client contracts.
• You improve reliability of account data and ranking flows under real player load.
• You reduce incident risk in transfer/payment paths through stronger validation and observability.

What You’ll Work On

• Build and maintain Java backend services that power core gameplay and account flows.
• Implement and evolve request handlers behind the game protocol endpoint (/bnb/operation) using requestKey dispatching.
• Own data consistency across MySQL + Redis, including transactional and partial-f...