Senior Mobile Engine Architect—Lean, Fast, Low-Power

Level.me; Austin, Northern (TX, KY); Hybrid; USD 140,000 - 210,000; Full time

Job summary

Level is seeking a C++ engine engineer to optimize and strip down a forked Godot-based engine for mobile and constrained hardware. You will focus on what’s needed, remove unneeded features, and rewrite components to improve performance and footprint on lower-powered devices.

You will profile CPU/GPU, work on memory allocators, loading, and rendering, and coordinate with iOS/Android graphics APIs to ensure robust cross-platform behavior.

Qualifications

• Strong professional C++ experience.
• 7+ years of game engine or runtime experience, including below gameplay layer.
• iOS and/or Android shipping experience.
• Experience with constrained hardware and understanding mobile hardware limits.
• Experience profiling and optimizing CPU, GPU, memory, loading, asset footprint, binary size, frame rate.
• Experience modifying underlying engine or runtime tech, not just building features atop it.
• Experience debugging device-specific problems across different hardware generations.
• Strong architecture and systems design skills.
• For Unity/Unreal backgrounds: experience going below engine abstractions, not just C#/Blueprint shipping.

Responsibilities

• Get inside our engine and determine what functionality is actually needed for our product, and what can be removed, rewritten, or optimized.
• Profile and optimize engine and runtime performance across CPU, GPU, memory, binary size, loading time, and (where relevant) battery/power.
• Modify underlying engine/runtime technology to meet mobile and constrained-hardware requirements.
• Work on memory allocators and footprint, asset streaming, lazy/asynchronous loading, texture compression, and rendering optimization.
• Address draw calls, GPU pipelines, shaders, CPU/GPU synchronization, multithreading, and frame pacing.
• Work with platform graphics APIs (iOS/Metal, Android/Vulkan/OpenGL ES) and debug device-specific problems.
• Improve startup and load time, binary/package size, and performance across a range of device generations and capabilities.
• Make architecture and systems design decisions specific to lower-powered hardware constraints.
• Actively experiment with and adopt AI-assisted development tools to improve engineering workflows.

Skills

C++

Game engine

Performance profiling

Mobile shipping

Multithreading

Tools

Godot

iOS tooling

Android tooling

Job description

Level is seeking a C++ engine engineer to optimize and strip down a forked Godot-based engine for mobile and constrained hardware. You will focus on what’s needed, remove unneeded features, and rewrite components to improve performance and footprint on lower-powered devices.

You will profile CPU/GPU, work on memory allocators, loading, and rendering, and coordinate with iOS/Android graphics APIs to ensure robust cross-platform behavior.