Senior Engine Programmer (Rendering, Clash Royale)

Location: Onsite in Shanghai, China. Relocation support is available for candidates moving to Shanghai, including family support.

Company

hirify.global is a Helsinki-founded games company developing globally played mobile titles including Clash Royale, Clash of Clans, Hay Day, and Brawl Stars.

What you will do

• Own and evolve rendering systems and 3D graphics features in hirify.global’s proprietary C++ engine.
• Design and implement materials, shaders, lighting, shadows, post-processing, visibility, batching, animation integration, and asset workflows.
• Profile and optimize CPU, GPU, memory, loading, and frame-time performance across iOS and Android devices.
• Diagnose visual, performance, and platform-specific issues in a large live codebase.
• Improve engine architecture, tools, and workflows in collaboration with artists, designers, and programmers.
• Balance long-term technical direction with the practical needs of ongoing live-game feature development.

Requirements

• Strong professional experience with modern C++ in game or engine development.
• Deep practical knowledge of real-time 3D rendering, GPU pipelines, shaders, graphics debugging, and performance analysis.
• Understanding of game-engine architecture and the interaction between rendering, assets, memory, threading, gameplay, and platform layers.
• Experience shipping and optimizing game features in a large, established codebase.
• Knowledge of mobile hardware constraints, including CPU/GPU budgets, memory, bandwidth, battery, and device fragmentation.
• Ability to independently take solutions from design through implementation, validation, and production, with effective cross-discipline communication.

Nice to have

• Experience with proprietary or custom game engines.
• Experience with Metal, Vulkan, OpenGL ES, Direct3D, or console graphics APIs.
• Specialist knowledge of physically based rendering, GPU-driven rendering, visibility and culling, animation rendering, particles, VFX, or rendering tools.
• Experience building artist-facing tools, asset pipelines, or workflows.
• At least one shipped game and experience supporting a live mobile game at global scale.

Culture & Benefits

• Independent cells, trust, freedom, and ownership are central to the working environment.
• Resources and compensation are structured to support sustainable, effective game development.
• Dedicated mobility partners provide comprehensive relocation assistance for employees and accompanying family members.
• Recruitment accommodations are available when needed.

Hiring process

• Submit an application through the recruitment form.
• The recruitment team can discuss accommodations and provide support throughout the process.