Graphics Kernel API Engineer - Cross-Platform Rendering

LE130 Unity Technologies SF; Montreal (administrative region); On-site; CAD 89,000 - 134,000; Full time

Benefits offered by this job

Stock options

Annual bonus

Sales commissions

Job summary

Unity Technologies in Montreal is seeking a Graphics Kernel API engineer to develop and maintain the common API layer and the cross-driver abstraction beneath it. You will work with driver teams across D3D12, Vulkan, Metal, and WebGPU to ensure consistent behavior on real hardware and across platforms.

You will contribute to validation layers, conformance tests, and the documentation that keeps the API coherent as it evolves, while collaborating with engine teams to understand requirements and

Qualifications

• Strong C++ multi-threaded programming skills.
• Solid understanding of real-time 3D graphics and GPU resource management.
• Experience with Direct3D 12, Vulkan, or Metal.
• Ability to diagnose bugs and performance issues with industry tools.
• Proactive, collaborative and eager to work across platforms.
• Willingness to explore unfamiliar technical areas.
• Familiarity with conformance tests or validation tooling is a plus.

Responsibilities

• Develop and maintain the common API layer and cross-driver abstraction.
• Contribute to validation layers and conformance test suites.
• Collaborate with driver teams to implement efficient API additions.
• Improve performance, testability and stability from API to driver.
• Contribute to specifications and documentation.
• Participate in design and code reviews.
• Work with stakeholders to plan work and communicate progress.

Skills

C++ multi-threaded

Real-time 3D graphics

GPU architecture

Direct3D 12/Vulkan/Metal

Tools

RenderDoc

PIX

Profiling tools

Job description

Unity Technologies in Montreal is seeking a Graphics Kernel API engineer to develop and maintain the common API layer and the cross-driver abstraction beneath it. You will work with driver teams across D3D12, Vulkan, Metal, and WebGPU to ensure consistent behavior on real hardware and across platforms.

You will contribute to validation layers, conformance tests, and the documentation that keeps the API coherent as it evolves, while collaborating with engine teams to understand requirements and