Syed Ahmed Mohiuddin Hasan

Full Stack Web Developer at Freelance / Independent

Developing a comprehensive CRM application, handling full frontend logic and data integration using React, TypeScript, and Supabase. Implemented secure user authentication and session management via Supabase Auth to ensure protected data access for business users. Launched multiple production sites for the KS A market (e.g., DareLite Real Estate), optimizing for RTL (Arabic) support and mobile responsiveness. Boosted page load speeds by 25% by refining asset delivery, image optimization, and clean component architecture. Migrated legacy database logic to a unified Supabase / PostgreSQL backend to streamline data flow and improve application performance.

Front End Developer at AY Software Development

Owned the frontend execution for scalable web apps, converting complex designs into functional, type-safe React components. Optimized UX by implementing code-splitting and lazy loading, leading to faster interactions and improved Core Web Vitals. Collaborated with backend teams to integrate RESTful APIs, ensuring smooth data synchronization and efficient state management. Ensured high code quality by establishing frontend standards and conducting peer reviews for junior developers.

Frontend Developer at Ay Software Development

Engineered an Odoo-backed HR portal automating leave, attendance, and approvals, cutting admin time by 35%; integrated an Anthropic API-based dev assistant, cutting scaffolding time by ~40% across a 4-person team; developed a React/TypeScript CRM with Supabase, reducing manual sales reporting time by ~30%; implemented Supabase row-level security with JWT-scoped policies across 15+ tenants; optimized initial bundles to cut time to first byte from 3.8s to 2.9s via route-based code-splitting and deferred asset loading; launched 3 mobile-first production sites with full native RTL Arabic support across all client pages; consolidated 4 legacy data sources into a unified PostgreSQL schema, saving ~5 hours of weekly reconciliation.