Graphics Engineer, Kernel API Team

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

The opportunity

We're looking for a graphics engineer to join the Graphics Kernel API team. The team works on a standalone, low-level graphics abstraction layer that gives Unity a single, consistent interface across every platform and graphics driver we support. The team owns the cross-driver abstraction that keeps behavior consistent across every backend, the validation layer and conformance test suite that catch misuse, and the specifications and design records that document how it all fits together. It's the layer every driver team implements against, and the one the rest of the engine is built on. You'll work alongside other graphics developers and the individual driver teams on clean, efficient APIs - keeping them consistent across a wide range of hardware, and making sure they're testable, debuggable and well documented. It's a good place to build real depth in cross-platform rendering.

What you'll be doing

• Develop and maintain the common API layer and the cross-driver abstraction layer beneath it, helping keep behavior consistent across D3D12, Vulkan, Metal, WebGPU and console backends.
• Contribute to the validation layer and conformance test suite, so that misuse is caught early and every driver can be held to the same contract.
• Work with the lower-level driver teams to make sure new API additions are practical to implement and perform well on real hardware.
• Improve the performance, testability and stability of the systems you work on, from the API surface down to how commands reach the driver.
• Contribute to the specifications and documentation that keep the API coherent as it evolves.
• Take part in technical design reviews and code reviews.
• Work with stakeholders and higher-level engine teams to understand requirements, plan work, communicate progress and solve problems as they come up.

What we're looking for

• Software engineering fundamentals, and experience writing multi-threaded C++.
• An understanding of real-time 3D graphics programming, including modern GPU architecture and resource management.
• Experience with a modern graphics API such as Direct3D 12, Vulkan or Metal.
• The ability to diagnose bugs and performance issues using industry-standard tools.
• A proactive, solution-oriented approach, good communication skills, and a real interest in rendering and cross-platform development.
• A willingness to jump into unfamiliar technical areas.
• Graphics fundamentals matter more to us here than experience with any one API.
• If you've worked in D3D12 or Metal and haven't touched Vulkan - or the other way round - we'd still like to hear from you.
• You might also have Experience writing conformance tests, validation layers, or other tooling that holds multiple implementations to a shared specification.
• Familiarity with CPU and GPU debugging and profiling tools such as RenderDoc, PIX, or platform-specific captures.
• Hands-on experience with Unity or another real-time 3D engine.

Base Salary Range

Base Salary Range: We determine the base salary range for this role based on your primary work location: Canada Montreal CAD$89,100 - CAD$133,700 CAD gross. Cette fourchette correspond au salaire de base prévu pour ce poste. En plus du salaire de base, ce poste peut donner droit à des attributions d’actions et à une participation à nos programmes d’incitation de l’entreprise, comme des primes annuelles discrétionnaires ou des commissions de vente. Le montant final de l’offre dépendra de plusieurs facteurs, notamment l’emplacement géographique ainsi que l’expérience pertinente, le parcours professionnel, et les compétences du/de la candidat(e). This range reflects the anticipated base salary for this position. Beyond base salary, this role may be eligible for equity awards and participation in our company incentive plans (such as annual discretionary bonuses or sales commissions). The final offer amount will depend on several factors, including geographic location and the candidate’s relevant experience, professional background, and skill set.

Benefits

• assurance santé, vie et invalidité complète
• Subvention pour les déplacements
• Participation des employés à l’actionnariat
• Régimes de retraite/pension compétitifs
• Vacances et congés personnels généreux
• Soutien aux nouveaux parents grâce à des congés et des programmes de soutien aux familles
• Collations offertes au bureau
• Programmes et soutien en matière de santé mentale et de bien-être
• Groupes-ressources pour employés
• Programme mondial d’aide aux employés
• Programmes de formation et de perfectionnement
• Programme de bénévolat et de jumelage de dons

Life at Unity

Unity [NYSE : U] is the world’s leading game engine, powering play for more than 3 billion consumers each month. The top mobile games in the world, the most played PC indie titles, the most innovative console games, and virtually all of the top XR and Web Games are developed, deployed, and grown by Unity. Unity also enables teams across industries like automotive, manufacturing, and healthcare to design, simulate, and collaborate in 3D - closing the gap between ideas and reality.

At Unity, we're committed to creating a workplace that fosters collaboration and teamwork that allows you to harness your unique skills. Join us in creating industry tools to help creators of all levels bring their projects to reality. Learn more about our culture and values, and get a head start by reading about how our hiring process works.

Unity is a proud equal opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law.

This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.

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