networking

3

Replacing MPLS With AWS Transit Gateway: What It Actually Costs and Where It Breaks

SD-WAN hybrid cloud with Transit Gateway, VPN, Direct Connect, and multi-cloud routing. The architecture, the cost model, and the failure modes your vendor won't tell you about.

5 min read

5,200 Location Updates Per Second: Building Multi-Region Consistency on AWS Without Losing Your Mind

156,000 active drivers. 5,200 location updates per second. 45 cities. Here's the multi-region architecture that keeps data consistent when networks lie to you.

6 min read

The AWS VPC Foundation That Runs Dev, Staging, and Prod Without Your NAT Gateway Bill Spiralling

A production-ready multi-environment VPC in CDK TypeScript. CIDR allocation, private endpoints for S3/DynamoDB, multi-AZ design, and the decision behind every choice.

5 min read

Every week: one AWS failure broken down + the fix that worked