Blog | Usman Ali

Writing

From the trenches.

Deep dives on infrastructure, reliability, and the lessons you only learn when things break.

API GatewayAWSAppSyncDistributed ArchitectureDynamoDBEC2ECSLambdaRoute 53SQSScalabilityServerless

Distributed Architecture,Scalability,ECS,Lambda,SQSMar 31, 20261 min read

Scalable Distributed Architecture for Multi Platform Image Migration

Designing fail-safe resumable pipelines that recover from failures without restarting the entire job Migrating millions of images from PicTime, Pixieset, ShootProof, and Zenfolio while preserving structure and metadata

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AWS,Lambda,API Gateway,Route 53Mar 31, 20261 min read

Multi-Region Failover with Amazon API Gateway

How organizations can evolve from a single-Region architecture API Gateway to a multi-Region one, using a reliable failover mechanism without dependencies on AWS control plane operations.

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Serverless,AWS,AppSync,Lambda,DynamoDB,API GatewayMar 31, 20261 min read

Designed a Serverless Architecture with Serverlesspresso

Serverlesspresso is a pop-up coffee shop that provides premium espresso drinks at conferences and events. The organizers have brought an elite team of the world's best baristas to brew 1,000 drinks a day for customers.

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Serverless,Lambda,AWS,EC2Mar 31, 20262 min read

AWS Lambda Managed Instances: Serverless Simplicity with EC2 Power

What if you could retain Lambda’s simplicity while running it on EC2 without managing servers? AWS re: Invent 2025 answered this with Lambda Managed Instances.

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