Context
A TV ad-sales platform: three inventory vendors with different APIs, fragmented data flows and costly manual spot operations.
Task
Improve end-to-end performance and operating efficiency without a risky full rewrite.
Approach
Redesigned backend paths, put the three vendor APIs behind a distributed database-backed rate limiter, moved in-memory state out, unified transports; a concurrent spot dispatcher with an exchange saga and multi-view media plans.
Result
~20% faster processing, up to 30% lower operating expenses, and 10+ production releases shipped in six months.
