FE Cocos - Hà Nội

Working Location: Ha Noi
Level: Mid-level
I. DESCRIPTION
Specialization: Cross-platform Web, Mobile, and PWA Game Systems
Market Focus: High-Traffic Entertainment (APAC Region)
As a Frontend Game Developer you will be responsible for the end-to-end lifecycle-from architectural conception to final delivery-focusing on high-performance gameplay, seamless user interfaces, and sophisticated animations for a massive global user base.
Core Responsibilities
Engine & Architecture: Architect and develop cross-platform games (Web, Mobile, PWA) using Cocos Creator, ensuring a robust component-based architecture.
Gameplay Engineering: Implement, debug, and refine core gameplay features based on rigorous design specifications.
Performance Engineering: Lead optimization efforts to ensure 60 FPS performance across fragmented mobile devices, focusing on Draw Call reduction, Atlas management, and Memory Leak prevention.
Collaborative Innovation: Partner with Game Designers and Backend Engineers to integrate complex game logic and real-time networking.
Tooling & Automation: Develop and maintain custom Editor Extensions and build pipelines to streamline the production workflow for Art and Design teams.
Research & Development: Stay at the forefront of WebGL advancements and apply cutting-edge APIs to enhance visual fidelity and system stability.
II. Require And Experience:
Core Competencies
Language Proficiency: Mastery of TypeScript/JavaScript (ES6 ) with a deep understanding of asynchronous programming and design patterns.
Game Design Patterns: Comprehensive understanding of the Game Loop, Node/Component life-cycles, and Collision Detection mechanisms.
Mathematics & Physics: Strong foundation in Linear Algebra (Vectors, Matrices, Quaternions) and the geometric formulas required for distance, angles, and physics-based interactions.
Web Fundamentals: Proficient in DOM/CSS and how modern browsers handle resources, including Caching strategies and Service Workers for high-performance PWAs.
2. Advanced Requirements
Performance Engineering: Proven experience in Draw Call Batching, Texture Packing, and Atlas optimization. Expert-level proficiency in using Chrome DevTools and Cocos Profiler to identify and resolve performance bottlenecks.
Memory Management: Sophisticated strategies for Garbage Collection (GC) tuning and proactive Resource Unloading to prevent application crashes on mobile browsers (Safari/Chrome).
Security & Integrity: Deep knowledge of data encryption (AES/RSA), Code Obfuscation, and mechanisms to prevent memory/packet manipulation (Anti-cheat/Anti-tamper).
3. Specialized Skill
Low-Level Graphics: Ability to write Custom Shaders (Cocos Effect) and optimize the rendering pipeline for high-vfx environments without compromising performance.
Native Integration: Experience with Cocos-JSB (JavaScript Bridge), including writing C , Objective-C, or Java to bridge native mobile functionalities.
Engine Customization: Proven experience in reading or modifying the Cocos Creator Engine source code to implement bespoke features.
Network Optimization: Expertise in State Synchronization, Dead Reckoning, or Client-Side Prediction for high-concurrency multiplayer environments.
DevOps for Game Dev: Experience with CI/CD pipelines, automated testing for games, and asset bundling strategies for rapid PWA loading.
Personal Attributes
Resilience: Ability to thrive in a high-pressure, fast-paced environment with massive traffic spikes.
Problem Solver: A proactive approach to debugging complex race conditions and memory bottlenecks.
Communicator: Capable of articulating technical constraints to non-technical stakeholders effectively.
III. Benefit
Fully equipped workstation (Macbook)
Attractive salary and bonus package, performance reviews twice a year, compensation aligned with capability and contribution
Various bonus schemes: project bonus, performance bonus, 13th month salary, etc.
Working schedule: Monday to Friday, with flexible working hours
Full insurance coverage plus additional private health insurance, annual health check-up
Company activities: team-building, birthday celebrations, Tet and Mid-Autumn gifts, football club, archery club, snacks always available, etc.
Professional training, opportunity to work with modern technologies
Comfortable, friendly working environment, fast-growing company with strong financial backing
Many other benefits and employee welfare policies
IV. Interview Process
Scanning Round
Technical Interview
HR Interview