Senior Backend Engineer job opportunity at Tubi.

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Tubi Senior Backend Engineer
Experience: 6-years
Pattern: full-time
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Engineering

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degreeBachelor's (B.Sc.)
loacation Toronto, Canada
loacation Toronto....Canada

We are seeking a Senior #Backend #Engineer to build #SGAI (Server‑Guided Ad Insertion) services that power personalized advertising experiences. SGAI enables personalized ad delivery in streaming services. You will design and operate scalable backend systems that coordinate ad delivery workflows, ensure high availability, and drive performance optimization across our streaming platform. __ Service Architecture & Reliability Design, build, and scale microservices to power the SGAI system. Own service availability, p99 latency, and throughput SLOs; drive autoscaling and capacity planning for high-traffic systems. Deploy and operate services on Kubernetes, with rolling/canary rollouts and HPA-based autoscaling. Design inter-service APIs using gRPC (protobuf); ensure backward-compatible schemas, deadlines, and retries. Implement resilience patterns including idempotency, retries, timeouts, fallbacks, rate limiting, and circuit breakers to ensure reliability. __ Performance & Scale Profile backend services, identify bottlenecks, and optimize memory/CPU utilization. ● Design and implement caching strategies, and leverage Redis/CDNs to reduce latency and improve efficiency. Architect scalable workflows using queues and streams to handle traffic bursts and asynchronous operations. Observability & Operations Build comprehensive observability into services through metrics, tracing, and structured logging. Define and maintain SLIs/SLOs, set actionable alerts, and ensure system reliability through robust monitoring. Participate in on-call rotations and incident response; lead postmortems and drive long-term fixes. __ #Security & #Compliance Implement secure authentication/authorization, secret management, and data privacy best practices. Enforce URL signing/encryption for playback session and ad endpoints to protect access. __ Qualifications 5+ years of experience building production backend services, preferably in #Elixir or #Golang. Strong knowledge of distributed systems, concurrency, and performance profiling. Hands-on experience with cloud platforms (AWS), #Kubernetes, and Infrastructure-as-Code (Terraform). Proficiency with datastores such as #PostgreSQL and Redis. Experience with CI/CD pipelines, automated testing, and operational excellence in #production environments __ Preferred Qualifications Domain expertise in ads or streaming technologies (e.g., SCTE-35, VAST/VMAP, CDN integration, HLS/DASH, SSAI, SGAI). Experience leading incident response, chaos/failure testing, and resilience engineering practices. Track record of cost optimization and performance tuning at scale.

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Senior Backend Engineer Applicants are expected to have a solid experience in handling Engineering related tasks