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Hi there 👋

About Me

Hello, I'm an embedded systems engineer who loves to build robust, highly readable, and maintainable firmware for embedded devices. I've been working on embedded systems for 7+ years now. Also, I've been working remotely for the last 3 years now, and I LOVE IT 🌟

My Work Experience Timeline Summary

  • 2022-now. Working on a Low-Earth Orbit Satellite system to provide 24/7 IoT connectivity anywhere in the world.
  • 2020-2022. Built tracker device to track heavy machinery such as excavators, and super big trucks. Developed firmware to run the devices 24/7 for years.
  • 2019-2020. Built tracker device for humans. Using Bluetooth technology to track human movement (indoor) and presence.
  • 2018-2019. Built a self-checkout machine for the biggest e-commerce startup in Indonesia.
  • 2016-2018. Built the tiniest smartcard reader that can be attached to Android smartphones.

My Skill Set

  • Firmware Architecture Design. A very important step that many engineers missed. Without proper architecture design, your firmware will be destined to be super-hard to maintain and add features.
  • Firmware Documentation. Without proper documentation, people will waste time to understand and follow your firmware.
  • Firmware Testing. I love and use Test-Driven Development in my day-to-day work.
  • Testing Automation. Usually I use CI/CD to deliver fast and good firmware without breaking existing code.
  • Programming Language. I'm fluent in speaking embedded C and C++ (especially the modern version like C++11, C++17, and C++20). Also able to speak Python and C#.

Technical Skills

  • Wired Protocols
    • SPI
    • I2C
    • UART/USART
    • CXPI (fancy cutting-edge wired protocol for automotive, used by Toyota)
    • CAN bus
    • USB
    • Ethernet
    • I2S (Audio)
  • Wireless Protocols
    • WiFi
    • Bluetooth Classic
    • Bluetooth Low Power (BLE)
    • LoRaWAN
    • NB-IoT
    • GSM/LTE
    • Visible-Light Communication (or VLC, I implemented it for my thesis back in the university)
    • NFC/RFID
  • Network Protocols
    • TCP/IP
    • UDP/IP
  • Security & Integrity
    • CRC32
    • MD5
    • AES
  • Development Board bring-up
  • Embedded Linux (still learning, mainly use Yocto)
  • Embedded library development
  • RTOS
    • FreeRTOS
    • Zephyr
  • Microcontroller
    • ESP32 (dual core MCU + WiFi and Bluetooth)
    • ESP8266 (single core MCU + WiFi from Espressif)
    • STM32 L0, L1, L4, F1 series
    • AVR MCU
    • Texas Instrument CCxxxx series
  • Hardware Development
    • Schematic Design
    • PCB design (still learning! I use KiCad)
    • Board assembly
    • Board testing
    • Power Profiling (to achieve low power, thus extending battery life)
  • Electronic Equipment I Own
    • 4-channel Oscilloscope
    • Nice multimeter
    • Logic Analyzer

How to Contact Me