Job description: - About the role: O3 is hiring a senior AWS Platform Engineer for a roughly six-month contract, supporting the infrastructure, routing, and production cutover for an enterprise digital platform migration for a membership-association client. This is a combined architecture and hands-on build role. You’ll lead the cloud infrastructure and edge-layer architecture end to end, from design through production cutover, while working alongside O3 and the client’s separate front-end vend…