Talha

Freelance Embedded Design Engineer

Fiverr • Freelance

Dec 2021 - Present • 4 yrs 10 mos

Working as a full-time freelance engineer on Fiverr, providing end-to-end embedded systems, PCB design, firmware, Linux, HMI, and IoT development for international clients. Key projects and achievements include: - Custom PCB and schematic design for STM32, ESP32, RP2040, Nordic nRF52/nRF54, Raspberry Pi/Compute Module and other embedded platforms. - Multi-layer and high-speed PCB development for Ethernet, DDR, USB, HDMI, CAN, SPI, I²C and UART interfaces. - Development of automotive controllers, CAN-based control systems and embedded electronics for specialized vehicles. - Reverse engineering and redesign of existing automotive and industrial electronic control boards. - Development of sensor and data-acquisition hardware, including PT100/PT1000, 4–20 mA, temperature, current, voltage and power monitoring. - Embedded Linux development for Raspberry Pi and Compute Module systems, including device configuration, networking and systemd services. - Firmware development for STM32, ESP32, RP2040 and Nordic nRF devices, including BLE, Wi-Fi, CAN, LoRa, RF, OTA updates, PWM and sensor interfaces. - Development of BLE-enabled products, wireless controllers, trackers and low-power connected devices using Nordic platforms. - Development of production testing equipment, electronic test jigs and industrial automation systems. - Delivery of complete client solutions from concept and schematic design through PCB, firmware, HMI, testing and manufacturing files.

Senior Embedded Design Engineer

AD Technologies • Full-time

Dec 2025 - Sep 2026 • 9 mos

• Embedded Linux Firmware & System Integration Developed and configured Linux-based embedded systems for Raspberry Pi and Compute Module platforms, including device interfaces, UART, I²C, networking, system services, startup configuration, and hardware communication. • Node-RED Data Acquisition & Control Built Node-RED flows for sensor monitoring, device control, MQTT communication, serial communication, TCP connectivity, data processing, and industrial automation dashboards. • Kiosk-Mode HMI Development Configured Linux-based touchscreen systems to automatically launch custom HMI applications in fullscreen kiosk mode at startup, providing a dedicated operator interface without exposing the desktop environment. • Embedded HMI & Industrial Control Integration Integrated touchscreen HMIs with sensors, controllers, MQTT, serial devices, and industrial control hardware to create complete standalone monitoring and control systems.

Embedde Design Engineer

MERAJ • Full-time

Oct 2025 - Nov 2025 • 1 mo

• Embedded Hardware Design for Automotive Vehicles Designed and developed embedded electronic hardware for automotive and special-purpose vehicle applications, with focus on reliability, safety, and harsh-environment operation. • Reverse Engineering of Automotive Control Cards Performed reverse engineering and technical analysis of Italian automotive electronic control cards to understand circuit functionality, interfaces, signal flow, and system integration requirements. • HMI & Firmware Development for Firefighting Vehicles Developed HMI interfaces and embedded firmware for firefighting vehicle control systems, incorporating safety-focused logic, system monitoring, alarms, and operator controls. • STM32-Based Automotive Controllers – Designed custom STM32-based control units using automotive-grade components and robust hardware design practices for demanding vehicle environments. • CAN Bus Control & Communication Implemented CAN based communication and control for vehicle subsystems, enabling reliable data exchange between controllers, sensors, HMIs, and other electronic modules