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Mohamed SaidLaravel Backend Engineer
SaaS KSA Lead Generation

Cardi Digital Business Card Platform

Cardi is a digital business card platform that helps professionals, teams, and organizations create, share, and manage branded cards through dynamic QR codes and Apple Wallet. It offers instant updates, view analytics, team dashboards, custom domains, and full Arabic and English support as a smarter alternative to printed cards.

Shipped Full-stack engineer & product architect

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Cardi Digital Business Card Platform

Case study

  1. The challenge

    Printed business cards go out of date quickly, cannot be tracked, and are hard to manage consistently across a company. Cardi needed to serve both individual professionals and enterprises with employee invitations, permissions, custom branding, and custom domains. It also had to work equally well in Arabic and English, with proper RTL and LTR interfaces.

  2. The approach

    I designed a multi-tenant SaaS architecture where each card is a single source of truth, so profile edits propagate instantly across every shared link and dynamic QR code. I built Apple Wallet pass support, contact management, and view analytics for individuals, then layered on organization workflows: a central team dashboard, employee invitations, role-based permissions, custom branding, white-label options, and custom domain mapping. Bilingual Arabic and English support with mirrored RTL and LTR layouts was built in across the product.

  3. The outcome

    I delivered Cardi as a live production platform at cardi.sa, giving professionals and organizations a flexible, always-current alternative to printed business cards. Companies can manage their entire team's branded cards and analytics from one place.

Developed Cardi, a digital business card platform designed to help individuals, teams, and organizations create, share, and manage professional digital business cards with a modern and flexible online experience. The platform allows users to create digital cards, share them through dynamic QR codes, save cards to Apple Wallet, manage contact information, track card views, and update personal details instantly across all shared links. Cardi also supports business and enterprise workflows, allowing organizations to invite employees, manage team cards from one dashboard, use custom branding, connect custom domains, configure permissions, and access advanced analytics. The system supports Arabic and English with RTL and LTR interfaces, making it suitable for professionals, companies, sales teams, agencies, and organizations that need a smarter alternative to printed business cards. Key features include digital business cards, QR code sharing, Apple Wallet support, contact details management, view analytics, instant updates, team dashboard, employee invitations, custom branding, custom domains, white-label options, multilingual support, and enterprise card management.
  • Apple Wallet
  • PassKit
  • Dynamic QR Codes
  • RTL/LTR Localization
  • Multi-tenant SaaS
  • Custom Domain Mapping
  • Analytics Dashboard

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Quick look

Mohamed Said — Personal Portfolio & Engineering Website

Role
Product Owner, Designer & Full-Stack Developer
Challenge
The main challenge was organizing more than a decade of engineering experience, hundreds of technical articles, numerous production projects, certificates, and open-source contributions without overwhelming visitors. The previous portfolio format also needed to evolve from a simple personal profile into a professional platform capable of serving different audiences, including potential clients, recruiters, companies, and developers. The redesign needed to remain visually minimal while still providing enough technical depth to demonstrate architecture, backend expertise, real production experience, and the decisions behind each project.
Approach
I redesigned the website around a content-first architecture with clear separation between professional positioning, projects, technical writing, certificates, and contact paths. The homepage focuses on quickly communicating my role, experience, engineering focus, and selected work without requiring visitors to explore multiple pages before understanding what I do. Projects were rebuilt as structured case studies with categories, technologies, project status, technical challenges, implementation approach, outcomes, and dedicated project imagery. The article section was designed as an engineering library rather than a traditional blog. Articles are organized through topics, searchable content, featured articles, and technology-focused hubs so hundreds of posts remain easy to discover. The interface uses a restrained visual system with strong typography, generous spacing, reusable components, and minimal decoration to keep attention on the engineering work. SEO, semantic markup, accessibility, responsive behavior, structured metadata, performance, and lead-generation paths were considered throughout the redesign.
Outcome
Delivered a cleaner and more focused professional platform that presents my engineering work through projects, architecture decisions, technical writing, and open-source contributions instead of relying on a traditional résumé-style portfolio. The new structure gives clients, recruiters, engineering teams, and developers clear paths to explore relevant work, understand my technical experience, discover articles, and contact me.
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An elegant bilingual author website and direct book storefront designed to establish Liliana Antonik Shawky's digital presence, showcase her publications, share editorial content, and sell books directly to readers.

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Quick look

Liliana Antonik Shawky — Author Website & Book Storefront

Role
Full-Stack Developer, Solution Architect & UI Implementation
Challenge
The main challenge was combining an emotional, editorial author experience with a practical e-commerce flow without making the website feel like a traditional online store. The platform also needed to work for more than the author's first book, support multiple languages, present long-form editorial content, maintain a strong personal brand, and provide a clear path from discovering the author to purchasing a book.
Approach
I designed the website around two connected experiences: storytelling and commerce. The public experience uses an editorial structure with strong typography, author imagery, book storytelling, journal content, and carefully placed calls to action. Books are structured as reusable content entities rather than hardcoded sections, allowing future publications to be added without redesigning the website. Each book can have its own presentation, editions, pricing, media, description, and purchasing experience. The ordering flow was kept intentionally simple, allowing readers to select an edition and quantity before proceeding through a secure checkout process. The content architecture also supports bilingual pages, journal articles, newsletters, legal pages, FAQs, and future author events. SEO, semantic page structure, accessibility, responsive behavior, and content discoverability were considered throughout the implementation so the website can serve both readers and search engines effectively.
Outcome
Delivered a complete digital presence that combines author branding, editorial storytelling, book discovery, and direct sales in one cohesive platform. The website gives the author full ownership of her relationship with readers while providing a scalable foundation for future books, journal content, newsletters, events, and new releases.
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Suprivale Ao Vivo — Live Camera Streaming & Discovery Platform

Suprivale Ao Vivo is a live camera streaming and discovery platform that connects viewers with public camera feeds from cities across Brazil. It combines login-free viewing, interactive map discovery, subscription-based partner publishing, advertisements, Asaas payments, and multi-role administration in one system.

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Quick look

Suprivale Ao Vivo — Live Camera Streaming & Discovery Platform

Role
Lead Backend Engineer & Solution Architect
Challenge
Designing a platform that serves both public viewers and paying camera partners while maintaining strict data isolation and permissions between visitors, users, partners, and administrators. The system also needed to combine public live streaming, geographic camera discovery, package-based feature limits, advertisement management, subscription approval, payment processing, and partner dashboards without making the underlying business logic difficult to extend.
Approach
I designed the platform around clearly separated user roles and domain boundaries. Public camera streams remain accessible without authentication, while registered users gain personal features such as saved cameras. Partners operate inside an isolated dashboard where all camera, advertisement, subscription, and statistics queries are scoped to their own account. Subscription capabilities are controlled through packages instead of partner-specific hardcoded limits, allowing camera limits, advertisement limits, and additional features to evolve independently. The subscription workflow was implemented as an explicit state-driven process: request submission, admin review, approval, payment, and activation. Asaas was integrated for subscription payments using webhook-driven confirmation and idempotent processing so subscriptions are activated only after verified payment events. OpenStreetMap and Leaflet power geographical camera discovery, while Laravel authorization policies and permissions enforce access rules on the backend rather than relying on UI visibility alone. The administration layer centralizes management of cameras, categories, partners, subscriptions, payments, advertisements, users, content, permissions, and platform activity.
Outcome
Delivered a centralized platform where visitors can freely discover and watch live cameras, registered users can save favorites, partners can manage cameras, advertisements and subscriptions, and administrators can control the complete platform from a single dashboard.
Stack
Laravel PHP FilamentPHP Livewire Tailwind CSS MySQL OpenStreetMap Leaflet Asaas REST API Webhooks RBAC
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