AWS Serverless

Build production serverless apps on AWS. Covers Lambda functions, API Gateway, DynamoDB, SQS/SNS event-driven patterns, SAM and CDK deployment, and cold-start optimization for cost-efficient scale-to-zero backends.

This skill helps you ship event-driven backends on AWS. It designs Lambda handlers with proper IAM scoping, wires API Gateway routes, models single-table DynamoDB access patterns, builds SQS/SNS and EventBridge fan-out flows, packages deployments with SAM or CDK, and tackles cold starts with provisioned concurrency and lean bundles.

When to use

Use when building serverless applications on AWS — Lambda, API Gateway, DynamoDB, SQS/SNS event-driven architectures, SAM/CDK deployment, or cold-start and cost optimization.

Examples

Lambda + API Gateway

Stand up an HTTP endpoint

Create a Lambda function behind API Gateway that writes to DynamoDB, with a SAM template and least-privilege IAM role

Event-driven fan-out

Decouple producers and consumers

Design an SNS-to-SQS fan-out pattern so an order event triggers separate Lambda consumers for email, inventory, and analytics