CareerPlanSign in

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

Serbia💼 Full-time🗓 2026-04-24 → 2026-09-25

Core

Maintaining and evolving a live mobile game with real users by optimizing performance and modernizing legacy systems.

Role type

Senior IC mobile game engineer (Objective-C/Cocos)

Builds

Live-service mobile games with millions of players

Domain

Mobile gaming, legacy codebase modernization

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

Objective-C, iOS development, Cocos2d-x, performance optimization (CPU/memory/rendering), legacy code navigation, live-service environment experience, AI-assisted development workflows

Preferred skills

C++, game loop architecture, rendering pipelines, animation systems, system migration, analytics-driven development (A/B testing)

Technologies

Objective-C, Cocos2d-x, iOS, AI tools (Copilot, ChatGPT)

Responsibilities

Maintain and extend legacy Objective-C + Cocos codebase, optimize performance and memory usage, refactor systems without breaking live operations, ship features in a live-service environment, use AI tools for code generation and debugging, collaborate with product and design teams

Seniority

Senior, hands-on IC

Sourced via workable · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.