SwiftSend — Serverless Email Platform
With AWS Pinpoint reaching end-of-support, I directed the from-scratch replacement for an 11-site newspaper network sending millions of newsletters a year — designed and built, with the cutover in progress. I owned the requirements and drove the architecture; an AI coding agent implemented under my direction. I traced chronic stale-newsletter sends to a race condition living in the old architecture and designed around content assembled at fire time with immutable dated sends, which makes stale sends structurally impossible. Per-publication IAM isolation removes a whole class of cross-tenant leaks by construction.
I paired it with Swift Auth — subscriber identity, entitlement verification, and paywall access behind cryptographically signed Ed25519 magic links — and specified the analytics pipeline it was built to, with SES events flowing through Kinesis Firehose to S3 and Athena for history.
AWS · SES · Lambda · EventBridge Scheduler · SQS · DynamoDB · Firehose · Athena · TypeScript · AWS CDK


