ZZ

Hi — I'm an Embedded Systems Engineer

I build reliable hardware, clean firmware, and end-to-end embedded solutions.

I design PCBs, write real-time firmware (ESP32, STM32, RTOS), integrate sensors & comms (WiFi, BLE, LoRa), and deliver production-ready embedded products. I work with startups and product teams to ship prototypes and scale them to manufacturing.

Hire / Contact View Work
  • Skills
    Firmware, Hardware
  • Tools
    ESP32, STM32, PlatformIO
  • PCB
    Altium, EasyEDA, Eagle, Proteus
  • Languages
    (C/C++), Python, Bash

About Me

I am an electrical engineer and embedded systems developer with experience building products from prototype to production. I specialize in firmware (bare-metal and RTOS), PCB design, sensor integration, and low-level debugging. My goal is to deliver robust systems that are easy to manufacture and maintain.

What I do

  • Firmware development (C/C++, PlatformIO, FreeRTOS)
  • PCB design & DFM reviews (Altium, EasyEDA, Eagle, Proteus)
  • Embedded Linux / Raspberry Pi integration
  • Prototyping, test fixtures, and automation

Availability

Open to remote contracts, freelance projects, and full-time roles. I prefer engagements that involve product development and problem solving across hardware and software.

Services

I deliver end-to-end embedded solutions or complement your team in specific areas.

Firmware & RTOS

Real-time firmware, peripheral drivers, low-power design, OTA updates and test-driven development.

Hardware & PCB

Schematic capture, multi-layer PCB layout, design-for-manufacturing (DFM), BOM optimization and prototyping.

Product Integration

System architecture, sensor integration, connectivity (WiFi/BLE/LoRa/cellular), and deployment support.

Portfolio

Filter by category to explore projects

Smart Sensor Gateway

Smart Sensor Gateway

ESP32-based gateway with MQTT bridge, secure OTA, and power management. Designed for remote environmental sensors.

Hardware • Firmware
RTOS Motor Control

RTOS Motor Control

STM32 + FreeRTOS motor controller with closed-loop PID, CAN diagnostics, and bootloader.

Firmware • Embedded
PCB Power Inverter

10 kW Off-grid Inverter (Design)

Schematic and PCB for power stage, gate drivers, and control board — incl. BOM and thermal analysis.

Hardware • Power

Contact Me

Ready to discuss your embedded project? Use the form or reach me directly.

Direct

Prefer direct contact? Email: zakriyazahid@gmail.com — I typically respond within 48 hours.

Resume

Download a one-page resume: Resume (PDF)