Senior Mobile Engineer (Objective-C / Cocos - Live Game Evolution)

UserWise Services builds and scales mobile games played by millions worldwide. The company focuses on moving fast, delivering impact, and using modern tools including AI-assisted workflows to accelerate development and iteration.

• Strong experience with Objective-C and iOS development
• Hands-on experience with Cocos (Cocos2d-x or similar)
• Experience working on live mobile games or shipped apps
• Ability to navigate and improve legacy codebases
• Strong understanding of performance optimization (CPU, memory, rendering)
• Pragmatic mindset: knowing when to refactor vs. ship
• Comfortable leveraging AI tools (e.g., Copilot, ChatGPT) as part of workflow

Nice to have:

• Experience with C++ (common in Cocos-based systems)
• Familiarity with game loops, rendering pipelines, and animation systems
• Experience migrating legacy systems to modern architectures
• Exposure to analytics-driven development (A/B testing, live ops)

• Maintain and extend a legacy Objective-C + Cocos codebase
• Optimize performance, memory usage, and runtime behavior for mobile
• Refactor and modernize systems without breaking live operations
• Ship features, events, and improvements in a live-service environment
• Use AI-assisted workflows (code generation, debugging, refactoring, test creation) to move faster
• Collaborate closely with product, design, and analytics to drive impact
• Identify quick wins vs. deep tech improvements and prioritize accordingly