Staff Backend Developer, U-Ads

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Unity is seeking a Staff Backend Developer for the Unity Ads team to build and modernize backend services and APIs supporting ad delivery in a high-scale, low-latency environment. The role involves working on scalable, high-availability distributed systems handling real-time ad requests, impression tracking, and user data analytics. Responsibilities include improving performance, observability, cost-efficiency, and contributing to architectural decisions. Required skills include proficiency in Golang, relational databases like MySQL, cloud infrastructure tools such as Kubernetes and Ray, API design, distributed systems, and strong communication skills in a remote-first environment. Experience in ad tech, programmatic advertising, real-time bidding, infrastructure-as-code (Terraform), networking, caching, or real-time data pipelines is a plus. The position is full-time, remote, based in Ontario, Canada, with no relocation or visa sponsorship. Salary range is CAD 153,000 to 229,600.