Senior Platform Backend Engineer

Unity Technologies•Montreal, QC

2d•£75,400 - £129,400

About The Position

The opportunity Unity Studio is our industry focused, cutting-edge, browser-based real-time 3D authoring tool. Studio's next chapter takes it into gaming, with an ambitious vision for how real-time 3D experiences are created, shared, and played on the web. As a Senior Backend Engineer on the Unity Studio team, you will own the cloud services behind the product: real-time multi-user collaboration, build and publishing pipelines, and the platform APIs the editor is built on. You will join a fast-moving, cross-functional team where your work ships quickly and directly shapes the product. You will collaborate closely with engineers, designers, and product managers from day one. As a senior member of the team, you will help set the technical direction, raise the engineering bar, and mentor others as the team grows.

Requirements

Substantial professional experience designing, building, and operating backend services in production
Strong proficiency in one or more modern backend languages, and the flexibility to work across several
Solid grounding in distributed systems - API design, data persistence, state management, and the trade-offs between them
Hands-on experience with cloud platforms and containerized, orchestrated deployments
A track record of owning services in production, including monitoring, debugging, and incident response
Pragmatism and comfort with ambiguity - you ship iteratively and make sensible trade-offs under real deadlines
Clear communication and easy collaboration with both technical and non-technical colleagues

Nice To Haves

Experience with real-time or multiplayer systems - WebSockets, collaborative editing, or state synchronization
Experience with the Unity Engine or other interactive 3D technology
Experience building backend services for games or interactive media

Responsibilities

Design, build, and operate the backend services behind real-time collaborative editing, game publishing, and content delivery
Own systems end-to-end - from design and implementation through deployment, monitoring, and running them in production
Evolve how the platform scales - stateful real-time workloads, session routing, and service fleets in a cloud-native environment
Define the APIs and service contracts that the editor and partner teams build against
Strengthen our infrastructure and delivery practices - infrastructure as code, CI/CD, and automated deployment
Work closely with product and design to turn ambiguous problems into shipped, reliable features
Champion reliability and observability, and help the team respond to and learn from production issues
Mentor other engineers and raise quality across the team through code review and design feedback