I'm a Computer & Control Systems Engineering student at Benha University, driven by a passion for building robust systems from the ground up. My expertise spans across architecting scalable backend APIs that handle real-world complexity, to diving deep into bare-metal C programming and embedded IoT solutions.

Philosophy: "Write code and design systems that don't just work — make them unbreakable."

Whether I am eliminating race conditions in financial backends, writing direct memory register manipulations for microcontrollers, or analyzing optical hardware circuits, I believe true engineering is about understanding how things work under the hood. When I'm not coding, I'm deepening my understanding of system architecture, digital logic, and the art of building maintainable tech.

• Low-Level Programming: Bare-Metal C, Direct Register Manipulation (GPIO), Bitwise Operations
• Microcontrollers & IoT: ESP32, Arduino, Wi-Fi provisioning, Shift Registers interfacing
• Hardware Design: Digital logic design, circuit analysis, Proteus simulation
• Sensors & Actuators: Optical data transmission (Li-Fi), Dark-activated LDRs, and ADC design

• Frameworks: FastAPI, Flask, SQLAlchemy, Pydantic
• PostgreSQL: ACID transactions, row-level locking, schema optimization
• System Architecture: RESTful APIs, Microservices, Weighted RBAC, JWT Auth
• Performance: Redis caching, Celery background tasks, Async I/O

• CI/CD & Testing: GitHub Actions, Pytest (TDD), Fixtures, Mocking

A lightweight Web SCADA system built for the ESP32 to monitor and control hardware endpoints in real-time, effectively bridging hardware and web interfaces.

• 🔌 Hardware Control: Managed shift registers and hardware pins using C and bitwise operations.
• 🌐 Web Server Integration: Engineered an embedded server for dynamic real-time interaction.
• ⚙️ Concurrency: Handled Wi-Fi, endpoint monitoring, and worker tasks concurrently.

A deep-dive into microcontroller architecture, bypassing standard heavy libraries to write directly to the hardware.

• 🛠️ Bare-Metal C: Implemented direct GPIO register manipulation without high-level wrappers.
• 🧠 Bitwise Mastery: Achieved efficient state toggling and precision timing control using pure bitwise logic.

A production-grade e-wallet backend engineered for strict financial integrity and scalability.

• ⚡ Concurrency Control: Eliminated race conditions using DB Row-Level Locking (SELECT FOR UPDATE).
• 🔥 Performance Optimized: Redis caching + Celery background workers.
• 🔐 Security First: Weighted RBAC, JWT auth with token versioning.

A hardware-based engineering project demonstrating the integration of optical physics and digital control.

• 🔦 Optical Sensing: Utilized lasers and dark-activated LDRs for precise material detection.
• 📡 Data Transmission: Implemented Frequency-to-Digital conversion via Li-Fi concepts.
• 💻 Circuit Design: Custom circuit configurations mapped and simulated in Proteus.

Bachelor's in Computers & Control Systems Engineering Benha Faculty of Engineering, Egypt
📆 October 2024 — Present | 📈 GPA: 3.4

Gained a deep understanding of low-level computing and system architecture through a rigorous curriculum bridging Computer Science and Control Systems.

• 🛠️ Bridging hardware and software through bare-metal embedded systems and IoT Web SCADA.
• 📖 Deepening expertise in microcontroller architecture, circuit analysis, and digital logic.
• 🚀 Exploring advanced concurrency patterns across both Python backends and C-based embedded systems.
• ⚗️ Mastering system design from the hardware layer up to the API layer.

I'm open to:

• 💼 Backend and Embedded engineering opportunities
• 🤝 Collaboration on low-level hardware or high-performance API projects
• 💬 Discussing system architecture, bare-metal C, and best practices

Reach me at:

• ✉️ Email: saeedhasan.dev@gmail.com
• 💻 GitHub: @AlsaeedHasan
• 📞 Phone: +20 120 165 3211