- Backend development using Node.Js to design and build scalable RESTful and serverless APIs - Develop microservices and event‑driven architectures with secure API patterns - Optimize application performance, caching, and database interactions - Frontend development using React.Js with reusable components and state management - Ensure high performance, accessibility, and modern UI standards - Design and deploy applications using AWS services (Lambda, API Gateway, DynamoDB/RDS, S3, CloudFront, Cognito, SQS/SNS) - Integrate third‑party AI/ML APIs and promote AI‑assisted coding workflows - Drive technical decisions, system architecture, and best practices in security and scalability - Collaborate with product, UI/UX, and DevOps teams to deliver robust end‑to‑end solutions