Challenge: Monthly cloud costs of $900 with no clear justification and underutilized resources.

Solution:

• Identified and removed unnecessary DynamoDB tables and idle EC2 instances
• Migrated to MongoDB for cost-effective database solution
• Containerized services using AWS ECS
• Implemented role-based access instead of hardcoded credentials

Result: Monthly costs reduced from $900 to $530 - a 44% savings

Challenge: High monitoring costs with New Relic and underutilized EC2 instances without autoscaling.

Solution:

• Migrated from New Relic to open-source Grafana and Prometheus
• Implemented Karpenter with spot instances for dev/pre-prod environments
• Enabled cluster scale-down during off-peak hours
• Migrated services to Kubernetes (EKS) for better resource utilization

Result: Eliminated ₹50,000-₹60,000 monthly monitoring costs plus additional infrastructure savings

Challenge: High AWS CloudWatch logging costs and expensive DocumentDB usage on Intel-based instances.

Solution:

• Transitioned to ARM-based instances for significant cost savings
• Deployed development environment on spot instances using Karpenter
• Replaced CloudWatch with Elasticsearch for centralized logging
• Migrated from DocumentDB to self-hosted MongoDB on Kubernetes
• Implemented environment shutdowns during non-business hours

Result: Achieved substantial cost reduction through ARM migration and spot instance utilization