Backend Engineer · 2022
Multithreaded Job Scheduler
An internal job scheduling system for coordinating thousands of concurrent background tasks with retry and backpressure handling.
3x
Throughput improvement over legacy scheduler
-60%
Failed job retries after redesign
The problem
The legacy scheduler struggled under load, with jobs silently dropping and no clear backpressure strategy when downstream systems slowed down.
The approach
Rebuilt the scheduler with a multithreaded worker pool, priority queues, and adaptive backpressure so slow downstream systems throttle intake instead of failing silently.
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