Cutting Costs with Self-Hosted MongoDB to S3 Data Transfer: A Real-World Savings

When managing cloud infrastructure for one of our growing clients, cost optimization became critical as our MongoDB database grew from 500GB to over 1.5TB in just 8 months. Like many Indian companies operating in the AWS ap-south-1 (Mumbai) region, we were facing escalating storage costs that were eating into our runway. Here's how we transformed our backup strategy and achieved a massive 92% cost reduction.