Don't just use technology. Understand how it works.

I build and investigate software across different layers of the stack --- from microcontrollers, firmware and legacy hardware to Windows drivers, networking, security and modern enterprise applications.

I enjoy projects where software meets the underlying system: understanding the layers beneath an abstraction, rebuilding old technology, and connecting hardware with software.

• Windows internals

• Windows driver architecture

• WDDM

• GPU architecture

• Kernel-mode concepts

• Linux

• ConPTY and terminal technologies

• DOS / retro computing

• Software reconstruction

• PIC / AVR

• Assembly

• Firmware development

• UART and serial protocols

• USB and V-USB

• Infrared interfaces

• Microcontrollers

• Hardware/software integration

• MikroTik RouterOS

• Firewall and IPS

• Network security

• VPN and tunneling

• QUIC / HTTP/3

• Asterisk / Issabel

• VoIP and SIP

• Linux infrastructure

A selection of projects that represent my interests across systems engineering, networking, embedded development and application architecture.

Windows · C/C++ · Security · TPM 2.0

Research and engineering focused on a software-based TPM 2.0 implementation. The project explores TPM command handling and the software architecture required to provide TPM-like functionality.

Networking · Go · Tunneling

A networking project exploring tunneling and modern transport technologies. See the repository for its current implementation, supported modes and technical documentation.

C++20 · Compression · Systems Programming

A native archive and compression project focused on software design, compression integration and performance-oriented implementation.

Windows · WDDM · Legacy AMD Radeon · GPU Architecture

Research and experimental work exploring the feasibility and architecture of a WDDM 2.0 display driver for legacy AMD Radeon hardware.

Research / experimental project --- not a production-ready display driver.

Embedded Systems · ATtiny85 · USB · Serial · Infrared

A dual-mode infrared receiver project designed around legacy PC serial communication and USB connectivity.

Django · Django REST Framework · React · TypeScript · PostgreSQL

A full-stack platform for technical inspection workflows, combining a web API, frontend application and supporting infrastructure.

A project-control and financial-management system covering areas such as work breakdown structures, cost control, man-day management, estimates at completion, profitability, payment certificates, role-based access control and reporting.

A payment-related integration project for WordPress environments.

A software project focused on UK company filing workflows and structured business reporting.

I have a particular interest in understanding, preserving and rebuilding older technologies --- especially where software interacts directly with hardware or operating-system interfaces.

• Creative QuickCD --- legacy Creative software research and reconstruction.
• Windows 95 Style Exit for DOS --- a retro-computing experiment recreating a Windows 95-style exit interface in a DOS environment.
• Issabel CCBS --- Call Completion on Busy Subscriber for Issabel / Asterisk environments.
• MQTT Magic Mirror --- MQTT-based smart mirror and home-automation integration.
• Flipper Zero Toolbox --- tools and experiments for the Flipper Zero platform.
• Matrix Terminal --- a Windows terminal project with a Matrix-inspired interface and a ConPTY backend.

I like understanding what happens underneath the abstraction.

Application
    │
    ▼
Framework
    │
    ▼
Operating System
    │
    ▼
Driver / Protocol
    │
    ▼
Hardware

And on the networking side:

Application
    │
    ▼
Protocol
    │
    ▼
Firewall
    │
    ▼
Network Stack
    │
    ▼
Infrastructure

The interesting problems are usually somewhere between these layers.

• Native compiler and language engineering
• Windows driver development and WDDM architecture
• Legacy AMD GPU hardware
• Embedded firmware and microcontrollers
• USB and serial communication
• Network security and modern tunneling protocols
• Local AI systems
• Operating-system and terminal technologies
• Legacy software preservation

• GitHub: github.com/iliyahaddad
• Portfolio: XMB Developer Portfolio