Lean Mobile Engine Architect for Constrained Devices

Level; Austin (CO); On-site; USD 120,000 - 160,000; Full time

Job summary

Level is seeking a C++ engine engineer to optimize and trim the engine for mobile and constrained hardware. You will work on a forked Godot, determining essential functionality, removing or rewriting components, and improving overall performance.

You will profile across CPU/GPU/memory, adjust memory allocators, and tackle rendering pipelines, multithreading, and platform APIs. This role requires deep engine experience and a track record of below-engine work.

Qualifications

• Strong professional C++ experience.
• 7+ years of game engine or runtime experience, including comfort working below the gameplay/application layer.
• iOS and/or Android shipping experience.
• Experience with constrained hardware and a strong understanding of mobile hardware limitations.
• Experience profiling and optimizing for CPU, GPU, memory, loading, asset footprint, binary size, and frame rate.
• Experience modifying underlying engine or runtime technology (not just building features on top of one).
• Experience debugging device-specific problems across different hardware generations.
• Strong architecture and systems design skills.
• For candidates from Unity or Unreal backgrounds: demonstrated experience going below the engine's abstractions, not solely C#/Blueprint-level mobile shipping experience

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

Strong C++ experience

7+ years game engine/runtime

iOS/Android shipping

Profiling & optimization

Engine/runtime modification

Device-specific debugging

Architecture & systems design

Low-level engine development

Tools

Godot

Native C/C++

IL2CPP / native plugins

Job description

Level is seeking a C++ engine engineer to optimize and trim the engine for mobile and constrained hardware. You will work on a forked Godot, determining essential functionality, removing or rewriting components, and improving overall performance.

You will profile across CPU/GPU/memory, adjust memory allocators, and tackle rendering pipelines, multithreading, and platform APIs. This role requires deep engine experience and a track record of below-engine work.