ā¾ Frontend: React 19, TypeScript, MUI component library, GraphQL mutations & subscriptions (AWS AppSync), mobile-first layouts
ā¾ Backend: Python 3 Lambdas, OpenAI API for content planning, image composition pipeline, Instagram/Facebook/X third-party API integrations, DynamoDB
ā¾ Infra: AWS Amplify Gen 2 (TypeScript IaC), Step Functions, S3 + CloudFront with Lambda@Edge image optimization, Cognito multi-tenant auth, X-Ray tracing
I owned the entire stack: the React 19 frontend including the real-time workflow status UI, the Step Functions state machine that orchestrates scraping ā AI content planning ā image generation ā social publishing in sequence and parallel, and the CloudFront + Lambda@Edge layer that serves optimized assets at the right dimensions per platform.