Senior Core Engine Architect — High-Performance Systems

LE130 Unity Technologies SF; San Francisco (CA); On-site; USD 150,000 - 225,000; Full time

Benefits offered by this job

Health, life & disability insurance

Commute subsidy

Employee stock ownership

Generous vacation & personal days

Job summary

Unity Technologies in San Francisco is seeking engineers to advance core engine infrastructure for real‑time 3D runtimes. You’ll own critical subsystems, optimize execution, and push performance across editor, build, and runtime code.

You’ll design scalable, cross‑process APIs, tackle loading and synchronization challenges, and work across physics, animation, and graphics domains to keep Unity ahead in a connected ecosystem.

Qualifications

• Experience building or fundamentally extending game engine cores.
• Ability to design modular, testable systems end-to-end.
• Strong knowledge of CPU caches, memory layout, and profiling.

Responsibilities

• Own and evolve subsystems across the engine stack from C++ to C# APIs.
• Design and implement high-performance APIs for embedded and networked configurations.
• Manage execution timing and resource contention across processes and networks.
• Orchestrate loading, tracking, serialization, and synchronization of assets.

Skills

Core Engine Expertise

Architectural Vision

High-Performance Coding

Engine-Wide Breadth

Tools

C++

C#

APIs

Serialization

Job description

Unity Technologies in San Francisco is seeking engineers to advance core engine infrastructure for real‑time 3D runtimes. You’ll own critical subsystems, optimize execution, and push performance across editor, build, and runtime code.

You’ll design scalable, cross‑process APIs, tackle loading and synchronization challenges, and work across physics, animation, and graphics domains to keep Unity ahead in a connected ecosystem.