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About 40% off the cloud bill, with no new infrastructure

An EV network and IoT data platform whose costs grew faster than its usage.

~40%Lower infrastructure cost
IndustryClean energy
ProductEV network management and IoT pipelines

Anonymised: client names and identifying details are left out. Outcomes are the measured results.

  1. Problem

    • Hot queries scanned far more data than they returned.
    • Repeated reads hit the database every time.
    • Compute was sized for a peak that rarely came.

  2. What I did

    • MongoDB compound indexes on the hot query paths.
    • Redis caching for repeated reads.
    • Right-sized EC2 and Cloud Run instances.

  3. Outcome

    • Roughly 40% infrastructure cost savings.
    • Achieved with no new infrastructure.
MongoDBRedisAWSGCP

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