Khalid Hassan S.
Full-Stack PHP (Laravel/CI) Developer | Secure & ERD-Based Systems
I help universities, financial institutions, and organizations build secure, scalable and maintainable PHP systems using clean architecture, ERD-driven database design and modern frameworks like Laravel and CodeIgniter Over the past 9+ years, I’ve delivered robust web applications that simplified operations, improved uptime and ensured compliance for clients in education and banking sectors. 🌟 Selected Results 🌟 🏦 Built a Central Bank collateral management system: delivered in 7 weeks with 0 post-deployment issues. 🎓 Developed University web portal achieving 99.9% uptime and integrated online payment workflows. 🧩 Designed modular ERP features with ERD-based architecture for easy scalability and auditing. 🧠 Converted complex SQL scripts into ERD diagrams, helping a client make immediate architecture decisions and speed up development planning. 💻 Core Expertise 🔥 PHP, Laravel, CodeIgniter, MySQL, MariaDB, PostgreSQL, MongoDB 🔥 REST API Design & Integration 🔥 ERD Diagram & System Architecture Modeling 🔥 Frontend: JavaScript, jQuery, Bootstrap, HTML5, CSS3 🔥 Secure Authentication (2FA, OAuth, Magic Link) 🔥 UML & ERD Database Diagrams 🚀 My Approach 🚀 1. Understand your workflow and map it in ERD/UML 2. Build scalable backend modules with clear logic 3. Deliver with documentation, testing and post-launch support 💬 Let’s discuss your system challenges. I’ll help you design a secure, maintainable solution that works long-term. ⏱️ Availability: Less than 30 hrs/week 🌍 Timezone: GMT+6 (Flexible communication hours) 💼 Projects from: $150+
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $406
Billed in all: $1,482$1.5k
$203 in the last 6 months
Across 11 contracts
Earnings, last 30 days
Skill rankings: Top 21% in UML Diagram
Ranked by MRR among everyone on Upwork with the skill.
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