Senior Software Engineer, Storage - Distributed Caching at DoorDash · LumiJobs

Responsibilities

The team owns provisioning of clusters and the smart clients that sit in front of them, baking in sensible defaults so that other engineering teams get a turnkey caching solution instead of having to run their own. You'll help drive Boulder's evolution to scale further, improve cost efficiency, enhance performance, and support real-time updates; re-platform the Distributed Lock Service onto a strongly consistent backend; and build the self-serve tooling and recommendation engine that let customers describe a workload (QPS, TTL, payload size, latency profile) and get the right backend without talking to a human.
You'll go deep on cache invalidation, replication, sharding, compaction, and failover, while shipping the guardrails, automation, and observability that keep this scale operable by a small team.
You must be located in San Francisco, Seattle, or the New York Metro Area for this hybrid position. You will report to the Engineering Manager on the Distributed Caching team within the Storage organization.
You’re excited about this opportunity because you will...
Own high-leverage caching and locking services with direct, measurable customer impact: cost, latency, and reliability at multi million QPS scale.
Build and scale Boulder, our KVRocks backed key-value store, including compaction, sharding, and domain isolation.
Re-platform the Distributed Lock Service onto a strongly consistent backend with sharding
Contribute to the standardized smart caching client that bakes in failover, retry, and observability defaults so customers don't have to think about them.
Diagnose and resolve production issues that span cache invalidation storms, replication lag, hot shards, and noisy-neighbor contention, then turn each one into a durable guardrail rather than a one-off fix.
Collaborate closely with the teams that build on top of caching, including Taulu, ML Platform, and product engineering across DoorDash, Wolt, and Deliveroo.
We’re excited about you because...
You have 6+ years of full-time experience designing, building, and operating distributed, stateful systems in production, at least 2 of which involved caching or key-value storage at meaningful scale.

Senior Software Engineer, Storage - Distributed Caching

Responsibilities

Qualification

Required

Preferred

Benefits

Company

DoorDash

More roles at DoorDash