Solution Architect - AWS Integration & API Gateway

We are seeking a Solution Architect to design and lead a central email gateway. It will sit between the client's commerce platform, its middleware (enterprise service bus) and a new email service provider, and will carry all business\-critical transactional email, such as order, shipping, refund and account notifications. The gateway offers two integration models:

• a pass\-through API for systems that are ready to use the new provider directly
• a backward\-compatible API that mimics the legacy provider, so existing systems only need to change an endpoint

The Architect will own the AWS target architecture, the versioned API contracts, a configuration\-driven mapping model, and the resilience design needed to make sure no email is lost or sent twice. The role leads a small cross\-functional team on a short build window, drives technical decisions with the client's architects, and owns cutover readiness and early\-life support.