"Nöbet Cepte" (Duty in Your Pocket) is a cloud-sync-enabled digital clinical assistant engineered to streamline workflows and support real-time decision-making for healthcare professionals (doctors, nurses, paramedics) in high-stakes environments like ICUs and emergency rooms. The platform unifies critical medical scoring systems, complex drug/fluid dose calculators, and dynamic shift tracking into a unified, mobile-first ecosystem. Leveraging PWA (Progressive Web App) capabilities, the system provides full offline functionality, ensuring uninterrupted performance in medical blind spots without internet connectivity.

Technical & Clinical Highlights:

• Comprehensive Medical Scoring & Math Engine: Implemented a zero-latency JavaScript (ES6) calculation architecture power-packed with 30+ critical clinical tools, including a CPR Assistant (with an auditory metronome engine), NEWS2 (National Early Warning Score 2), SOFA/qSOFA (Sepsis), Wells Criteria for DVT, GCS, APGAR, and automated Arterial Blood Gas (ABG) analysis.

  
  

• Advanced Fluid & Drug Titration: Developed high-accuracy modules for pediatric maintenance fluids (Holliday-Segar 4-2-1 rule), Parkland Burn Formula, GFR-based renal antibiotic dose adjustment, paracetamol toxicity overdoze assessment, and dynamic drug dilution matrices.

  
  

• Firebase Backend Integration: Integrated Firebase Authentication and Firestore to secure cloud-to-local synchronization for users' personal shift schedules, custom drug profiles, and task management lists.

  
  

• Full-Scale Administration Dashboard: Built an isolated Admin Panel featuring real-time data analytics, central drug database manipulation, multi-tiered system logging (Error/Warning/Info), multi-admin access provisioning, and automated secure data backup engines via JSON/CSV exports.

  
  

• Advanced UX & Accessibility: Engineered a Web Audio API-powered background timer chime, a global dynamic fuzzy-search overlay, a tokenized Light/Dark mode context manager, and dynamic font resizing features for maximum readability under clinical pressure.

I developed a modular, high-performance portfolio management system (CMS) designed for digital creators, developers, and designers to launch their personal websites without coding knowledge. Built on a PHP 8 and MySQL (PDO) architecture, the system features a dynamic automated wizard (install.php) that eliminates the need for manual SQL database imports. The project is 100% open-source and released under the MIT License.

Technical Highlights:

• Flexible Theme Engine: Engineered a modular architecture leveraging CSS Custom Properties (Tokens), enabling users to switch instantly between 6 unique themes (Default, Dark, Nova, Minimalist, Colorful, and Editorial).

  
  

• Advanced Security Layer: Fortified the application according to secure coding principles by implementing CSRF token protection, brute-force defense, IP-based rate limiting, XSS filtering, and a secure file upload handler (guvenliDosyaYukle()). Dynamic ordering endpoints are secured with strict backend whitelist validation.

  
  

• Enhanced UX & Performance: Integrated an AJAX-driven drag-and-drop sorting engine within the admin dashboard, a bot-filtered blog view counter, and a fully moderated comment management system.

  
  

• Modern Web Standards: Provided native PWA (Progressive Web App) support via Service Worker and Web Manifest integration, allowing the platform to be installed seamlessly on iOS and Android. Additionally, all layouts are optimized for search engines using custom metadata, Open Graph tags, and JSON-LD structured data.