focus on reliability, accessibility, performance and maintainability. Maintain and evolve the backend API, developed using Node.js, NestJS and TypeORM, alongside the Aurora MySQL Serverless v2 schema and migrations; ensure data integrity, robust API design and query performance at scale. Enhance the Next.js website for SEO, Core Web Vitals … deliver incremental value safely and predictably. Technical environment Languages & frameworks: TypeScript, Node.js, NestJS, React, Next.js; monorepo via Lerna & Yarn workspaces. Data & messaging: Aurora MySQL Serverless v2 (RDS), TypeORM migrations, ElastiCache/Redis, Bull queues. Search & real-time: OpenSearch; Socket.IO and AWS AppSync for live updates and bidding. Storage & delivery ...