rafah kalo

Developed and maintained backend services using Laravel to support a conversational messaging platform.
Built and optimized RESTful APIs for handling chat flows, user interactions, and integrations with external services (such as WhatsApp and messaging providers).
Designed and managed database structures to ensure efficient handling of messages, users, and conversation states.
Worked on implementing webhook systems to process real-time events and ensure reliable message delivery.
Integrated third-party APIs and services to extend platform capabilities and improve automation features.
Collaborated with frontend developers and product teams to deliver scalable and stable features.
Focused on performance optimization, bug fixing, and improving system reliability under high traffic usage.

• Led backend development for WithU platform serving production-scale business
operations.
• Improved API response performance by 30% through Laravel Queue optimization and
database restructuring.
• Reduced server load by 20% via query optimization and JWT-based authentication
architecture improvements.
• Developed secure REST APIs and backend modules supporting scalable production
deployments.
• Collaborated in Agile development environments delivering production-ready features
under tight release cycles.

مسؤولة عن تحليل تصاميم الفيغما واستخراج الميزات وسيناريو المستخدمين تحليل الداتا بيز وتصميمها وتوزيع التاسكات على الفريق

• Developed backend services for Captain App and Store App processing 10, 000+ daily
transactions.
• Built scalable Symfony APIs and transactional workflows using Doctrine ORM.
• Implemented backend business logic for order processing, transaction handling, and
operational automation.
• Improved API maintainability through modular architecture and reusable service layers.