Senior Front-End Developer

4 dni temu

Warsaw Poland IGaming Hunt Pełny etat 50 000 zł - 100 000 zł rocznie

We are looking for a Senior Front-End Developer to take ownership of real-time rendering, networking and performance within a multiplayer browser-based game environment.

Role is based in Warsaw, Poland (relocation support provided).

Responsibilities:

  • Maintain and optimize the core game loop to ensure consistent 60 FPS rendering under varying system loads.
  • Design and implement two-way socket communication, incorporating interpolation, reconciliation, and fault-tolerant architecture.
  • Build a modular UI and animation framework that supports dynamic layouts, multilingual bidirectional text, and multiple visual styles.
  • Create custom profiling and asset-loading tools to monitor memory usage, manage resource lifecycles, and evaluate frame performance.
  • Independently integrate and extend engine modules, researching and adopting new APIs or third-party libraries when necessary.
  • Optimize for mobile performance and cross-device consistency, while actively preventing memory leaks.

Requirements:

  • Strong experience with JavaScript/TypeScript, game development fundamentals, and real-time multiplayer architecture.
  • Hands-on experience with WebGL or Canvas-based engines such as Cocos, PixiJS, or Phaser; familiarity with the Spine SDK.
  • Proven contribution to the full development cycle of released 2D browser-based multiplayer games.
  • Deep understanding of GPU-accelerated rendering pipelines (WebGL/Canvas) and shader usage.
  • Expertise in designing real-time network systems, including latency handling, message sequencing, and retry mechanisms.
  • Strong grasp of state management and event-driven design in interactive client-side applications.
  • Advanced knowledge of memory management, garbage collection, and performance profiling.
  • Ability to work autonomously, including researching, prototyping, and implementing new technologies or engine extensions.
  • Languages proficiency: at least Intermediate level of English, Upper-intermediate level of Ukrainian and/or Russian. 

What's in it for you:

  • Competitive compensation package.
  • Relocation support.
  • Paid vacation and sick leave.
  • Opportunities for professional growth and learning.
  • Supportive environment with autonomy and ownership.
  • Involvement in technically challenging, fast-paced game development projects.

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