Backend2021

Large-Scale Data Migration & Optimization

Led zero-downtime migration of legacy systems to modern cloud infrastructure, optimizing database queries and improving performance by 10x.

The Challenge

Migrate 500GB+ legacy database to cloud while maintaining 100% uptime and improving query performance for 10M+ daily queries.

The Solution

Used AWS DMS for replication with event streaming via Kafka for data consistency. Implemented query optimization, database indexing strategy, and comprehensive monitoring during migration.

Results & Impact

100% uptime during migration

Query performance improved by 10x

Reduced database costs by 45%

Automated post-migration optimization

Technologies Used

PostgreSQL
AWS DMS
Node.js
Kafka
Redis
DataDog

Project Info

Category

Backend

Year

2021

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