sajjad

Feature development on both stacks: Implemented GraphQL integration with Apollo Client and Apollo Server, built various rich text editor functionalities with SlateJS, added log/monitoring system with Apollo Server lifecycle events and LogDNA, Postgres DB operations with Sequelize, Document and PDF export functionalities with Docx and PdfMake, built various charts with Recharts for analytics, and added authentication with AWS Cognito.

Front-End architecture and development: Built NextJS-like SSR architecture with Razzle and Express for the React web app, integrated Elasticsearch for fast search and filtering, LQIP image optimization with Cloudinary, added map navigation with OpenStreetMap + LeafletJS, enabled multiple language support, performance optimization, and followed SEO best practices such as schema.org.

Front-End development: Developed complex UI flows for ecommerce activities, design system with Yarn Workspace and Storybook, added PWA features like push notification, offline support, etc.