Senior Mobile Engine Engineer - C++ & Performance

Socket.dev; Austin (TX); On-site; USD 140,000 - 180,000; Full time

Job summary

Level is a learning technology company focused on building an optimized C++ engine for mobile and constrained hardware. The role centers on stripping down and rewriting engine components to meet platform limits while maintaining performance for a larger game and learning platform based on a fork of Godot.

You will work beneath the gameplay layer, modify engine/runtime technology, and optimize memory, render pipelines, and load times.

Qualifications

• Proven C++ expertise in game/engine contexts.
• Extensive work below gameplay layer on engines.
• Experience optimizing for mobile hardware constraints.
• Familiarity with iOS/Android hardware limits is a plus.
• Strong profiling skills for CPU, GPU, memory, boot time.
• Experience modifying core engine/runtime components.
• Ability to debug across hardware generations.
• Excellent system design and architectural thinking.
• Candidates from Unity/Unreal with native-level work are preferred.

Responsibilities

• Get inside the engine to determine needed functionality and what to remove or rewrite.
• Profile and optimize engine/runtime for CPU, GPU, memory, loading, power.
• Modify engine/runtime tech to meet mobile and constrained-hardware needs.
• Work on memory allocators, footprint, asset streaming, lazy loading, texture compression, rendering optimization.
• Address draw calls, GPU pipelines, shaders, CPU/GPU synchronization, multithreading, frame pacing.
• Collaborate with platform graphics APIs (iOS/Metal, Android/Vulkan/OpenGL ES) and debug device-specific issues.
• Improve startup, load time, binary/package size, across device generations.
• Make architecture/design decisions for low-powered hardware.
• Experiment with AI-assisted development tools to improve workflows.

Skills

Strong C++ experience

7+ years engine/runtime

iOS/Android shipping

Constrained hardware knowledge

Profile/optimize CPU/GPU/memory

Modify engine/runtime tech

Debug device-specific issues

Architecture & systems design

Below-engine experience (native work)

Job description

Level is a learning technology company focused on building an optimized C++ engine for mobile and constrained hardware. The role centers on stripping down and rewriting engine components to meet platform limits while maintaining performance for a larger game and learning platform based on a fork of Godot.

You will work beneath the gameplay layer, modify engine/runtime technology, and optimize memory, render pipelines, and load times.