Edge Image Optimisation API cover
All work

2023

Edge Image Optimisation API

An image transformation service running at the edge that resizes and re-encodes on demand.

Overview

Designed a stateless image API deployed to edge locations. Requests are transformed on the fly, cached aggressively, and served in modern formats with graceful fallbacks. Built the caching strategy and the signed-URL layer to prevent abuse.

Role & impact

My role

Backend engineer — service design and caching.

Impact

Reduced average image payload by 72% and improved LCP across client sites.

Stack

GoWebAssemblyCDNRedis