Adel A

Led the web application where users build financial models, plan scenarios, and review dashboards, and managed a six-person team across North America, Europe, and Asia. Rebuilt the model builder in Next.js with a virtualized statement grid, cutting key scenario render time on large 5-year models (60,000+ cells) from ~300ms to under 50ms, measured via DataDog RUM. Built a visual React-driven driver editor that updates server-calculated results and grid patches only for changed cells. Designed a GraphQL Node.js layer combining calculation, ingestion, and billing services, with saved views/comments stored in MongoDB via Mongoose and indexed around app query patterns; improved dashboard load time using batched data loading (2.4s to 1.1s). Improved real-time collaboration by using model-versioned caching and websocket events to prevent stale screens. Strengthened release reliability by adding cross-browser Playwright runs and Sentry/GitHub Actions release tracking.

Built React patient portal experiences where patients can book appointments, complete intake forms with React Hook Form, and message clinics. Implemented Node.js/Express layers over client FHIR APIs to translate FHIR resources into portal-ready screen shapes. Delivered WCAG 2.1 AA compliance with keyboard navigation, screen-reader labels, and CI automation using axe-core. For an online marketplace client, built buyer-facing Next.js listing and search pages that are server-rendered for indexing and served via S3/CloudFront. Added real-time order status updates over websockets using Redis pub/sub across AWS ECS Dockerized services, with careful handling of reconnects and out-of-order messages.

Developed React and Redux screens for a web fintech consumer app handling fund transfers, bill payments, and transaction history. Built multi-step transfer and bill-pay flows with inline validation, OTP confirmation, and clear failure states to ensure users never remain uncertain about payment outcomes. Created bilingual English/Arabic UI with right-to-left layouts and localized number/date formatting using a shared component library. Built a Node.js/Express layer to serve the web app pages and proxy calls to core payment REST APIs with session handling and CSRF protection. Improved performance by reducing the JavaScript bundle size (route-based code splitting in webpack) and wrote Jest/React Testing Library tests for payment/transfer flows to catch regressions before release. Took ownership of release processes and mentored interns on React/Redux.