Software Engineer II, Backend (Online Storage)

📋 Description Build and scale Affirm's Cache Services on Redis and Valkey, owning cluster migrations end to end Productionize cache clusters: capacity and shard planning, failover and replication setup Replace manual cache requests (provisioning, config changes, access) with automated, audited Operate the fleet in production: define SLOs, build alerting for hot keys, memory pressure and Partner with client teams on caching strategy (key design, TTLs, consistency, client timeouts) and Break down larger projects into individual tasks, deliver them in multiple phases, and collaborate 🎯 Requirements 2+ years of experience as a software engineer. Experience designing, developing and launching backend systems and are proficient in one of Python Familiar with the building blocks of distributed systems, and the technologies like AWS, MySQL Have worked on Redis, Valkey or a comparable in-memory store in production and understand Can reason about a caching workload end to end: hit rates, tail latency, hot keys, stampedes, and Experience automating infrastructure operations with Terraform, Kubernetes and Python, and prefer 🎁 Benefits Base pay is part of a total compensation package that may include monthly stipends for health In addition, the employees may be eligible for equity rewards offered by Affirm Holdings, Inc.