Hi, I'mMazharul Islam Nahid

Worked on a large-scale government project aimed at digitizing land records and improving administrative workflows. Developed features for khatian entry from the citizen panel and streamlined the processing workflow for DLRMS office administration. Created a khatian correction system, enabling citizens to correct their land records in an organized and efficient manner. Designed and maintained a scalable backend API using Nest.js, TypeORM, and Oracle to handle millions of user land records.

Core contributor to RadiusTheme's top-selling SaaS platform for dynamic directory and website creation, serving as a leading marketplace solution. Architected and developed a fully custom drag-and-drop Page Builder system inspired by Elementor, featuring container-based layout logic, nested container support, flexbox controls, and real-time styling with live preview capabilities. Built modular widget architecture with 30+ reusable UI components (headings, images, galleries, maps, forms, listings) enabling scalable, extensible page construction without code dependencies. Designed and implemented Template Builder system supporting header/footer templates with conditional rendering logic, enabling site-wide template reuse and consistent branding across pages. Developed interactive Menu Builder with drag-and-drop functionality, hierarchical menu structures, multi-level navigation support, and dynamic menu item configuration (pages, custom links, templates). Engineered comprehensive monetization system supporting pay-per-listing, membership subscriptions, promotional packages, and renewal workflows with multi-gateway payment integration (Stripe, PayPal, SSLCommerz, offline). Implemented order processing workflows with transaction management, billing address validation, automated listing activation, and membership quota tracking with priority-based plan distribution. Architected Redis caching layer with hash-based cache keys, tag-based invalidation strategies (global, widget-specific, parameter-level), and Next.js unstable_cache wrapper with performance metrics, reducing database queries by 60% and improving API response times. Built high-performance frontend rendering pipelines with parallel data prefetching, server-side rendering optimization, and real-time state synchronization using Next.js 15 App Router, Zustand, and React Server Components. Integrated advanced UX features including container nesting, layout switching, responsive flexbox controls, dynamic background configuration, and drag-and-drop interactions using @dnd-kit library.

Built a dynamic theme customization system powering 54,000+ Bangladeshi government websites under the National Portal Framework. Designed a flexible theme engine using Express + EJS with React-based composition to render dynamic pages from XML configurations. Created a dependency-free drag-and-drop system using Shadow DOM, supporting custom raw widgets and dynamic content rendering. Built reusable tools like Minioloader, Fileloader, and Mongoloader to manage resource loading across admin and theme layers. Developed a feature-rich data table component in EJS, enabling high-performance, theme-aware content management. Integrated backend with MongoDB and MinIO, enabling reliable data handling and asset delivery.

Developed interactive e-learning platform: Built engaging course modules with content provider tools and integrated BigBlueButton for live class and live class routine, collaborative learning experiences. Enhanced skill development: Implemented SCORM compliance for uploading interactive project modules, enabling deeper dives into practical applications. Streamlined job search process: Designed and developed a seamless job application platform with integrated assessments, interview scheduling, and shortlisting processes. Optimized user journeys: Created a step-by-step onboarding system for young users, facilitating registration, profile completion, and access to courses and job applications.