Hassan Alkuheli

Backend Developer at Cloud International

Cloud International

Job Details:Contributed as a backend developer in a cross-functional team building a salon services marketplace from the ground up. Built secure APIs in vanilla PHP with MySQL integration, supporting core features like service listings, appointment scheduling, and vendor dashboards. Worked closely with frontend Flutter developers to deliver features 3 weeks ahead of schedule, enabling early user testing and stakeholder feedback. Hardened backend against common web attacks (SQLi, XSS, CSRF), reducing vulnerability exposure by 95%. Used Git and GitHub for version control and collaboration across backend/frontend teams.

AMG

Job Details:Built a high-frequency trading bot in Python, integrated with Binance and KuCoin APIs, capable of executing over 20000 trades per second with sub-millisecond latency. Developed a custom backtesting engine with 23x speed improvement using advanced NumPy techniques, including vectorized operations, caching, and precomputed window indexing. Engineered a transformer-based NLP parser for Telegram signals, processing 10 messages/sec with over 98% parsing accuracy. Implemented asynchronous queues and a sigmoid/tanh-based signal scoring system to normalize and prioritize execution timing in volatile markets.

Laracasts

Job Details:Developed a complete job board using Laravel MVC architecture, implementing role-based middleware for secure access control. Optimized backend routing and lazy loading strategies to handle 100 requests/sec on PostgreSQL in production. Migrated from SQLite (dev) to PostgreSQL (prod) and deployed on Railway with CI/CD workflow for seamless iteration. Structured database models to support job posting, filtering, application tracking, and scalable CRUD operations with 99.99% ACID compliance.

Taskflow

Job Details:Built a fullstack task management platform featuring drag-and-drop task ranking, category tagging, and nested subtasks with an intuitive and minimalist interface. Designed fully protected routes using short-lived access tokens and 7-day refresh tokens, enabling secure, stateless JWT-based authentication and auto-redirect on token expiry. Engineered a dynamic UX with zero modal overhead: actions like edit/add task are embedded directly into interactive cards, reducing cognitive load and improving task flow speed. Developed for real users (self + peers) with responsive design, Tailwind styling, and full backend in Node.js - MongoDB, showcasing complete project delivery from frontend to API security.