Senior Embedded Systems Engineer
I turn big ideas into prototypes that actually work. 9 years helping startups go from napkin sketches to products on shelves - firmware, PCB design, and everything in between. With manufacturing connections in China and the USA, I take projects from concept to mass production.
Deep, hands-on experience across the full embedded stack - from silicon to cloud.
Production firmware in C/C++ for safety-critical and real-time applications. Zephyr RTOS, FreeRTOS, embedded Linux, and bare-metal systems. Python for test automation and tooling.
End-to-end wireless and wired - BLE, Wi-Fi, Ethernet (W5500), LoRa mesh with AES-256, GSM/MQTT telemetry, and ESP-NOW for low-latency control.
Circuit design and multi-layer PCB layout with signal integrity analysis, EMI/EMC compliance, and cost optimization. 3D enclosure modeling in SolidWorks.
ARM Cortex-M: Nordic nRF52/nRF70, full ESP32 family, STM32, ATmega, Raspberry Pi - plus low-level protocol mastery across SPI, I2C, UART, CAN, and USB.
IEC 61672-1 compliant acoustic measurement, 16K-point FFT, A/C weighting, 1/3 octave bands, real-time voice synthesis, Dolby-tuned DSP, and on-device machine learning for AI edge processing.
End-to-end from prototype to mass production. BOM optimization, manufacturer sourcing in China, and regulatory compliance.
A few of the projects I've worked on - from concept through manufacturing to products on shelves.
Control your mains, generator, and inverter from anywhere in the world. Intelligent power management that auto-switches sources, monitors usage over time, and lets you toggle home devices remotely via GSM/MQTT. Built with ESP8266 + ATmega 2560, ESP-NOW, OLED display, and energy monitoring with fault detection.
Pocket-sized 6-key soundboard that plugs between your mic and Xbox/PS5/PC. 32-bit STM32 with AI edge processing - up to 30 simultaneous samples, voice modulation, auto-tune, and a Dolby-tuned DSP unit. LED-lit keys, TRRS I/O, USB-C for charging and sound loading. 100mm x 45mm form factor.
A prank device that slips between a phone case or inside a book and vibrates randomly. Designed from concept through PCB layout, enclosure design, and manufactured in China with full BOM management and production oversight.
30W AKG-tuned Bluetooth speaker with 80+ hours playback and a built-in 100W USB-C PD power bank for emergency device charging. Features TWS party mode to sync multiple units for surround sound at gatherings.
Solar-powered autonomous gate for a robotic mower in Denmark. Uses RSSI triangulation and active RFID to detect the mower's direction and intent, opening only when it needs to pass. Self-diagnostic reporting and internal solar-charged battery for off-grid placement.
IEC 61672-1 compliant acoustic measurement for oil and gas. ESP32-S3 with Class 1 B&K microphones, 16K-point FFT, A/C weighting, 1/3 octave bands, continuous lossless recording, and LoRa mesh networking with AES-256 encryption.
Custom macro keyboard with ESP32-S3, LVGL touchscreen, Cherry MX switches, RGB LEDs, Python macro management. Full hardware - PCB, 3D-printed enclosure, and firmware.
Complete ESP-IDF driver for USB Power Delivery sink controller. Published on the Espressif Component Registry. Dynamic 5V–20V selection, hot-plug handling, callbacks, and thread-safe multi-task operation.
WiFi/Ethernet network switcher for ESP-IDF with automatic failover, preference-based switching, DNS handling, and pre/post switch callbacks for seamless dual-interface IoT devices.
WS2812/SK6812/WS2811 LED status indicator for ESP-IDF. 22-function API with 8 animated patterns, custom callbacks, flash overlay, brightness scaling, and HSV utilities - all non-blocking via FreeRTOS.
Pure C W5500 Ethernet driver for ESP-IDF. 19-function API with DHCP/static IP, status callbacks, SPI bus sharing, MAC auto-detection, and 5-state machine. No Arduino dependencies.
SD card driver for ESP-IDF with SDIO 4-bit and SPI support. 21-function Arduino-style file API, FAT auto-mount, hot-plug detection, storage monitoring, and error tracking with 3-strike degradation.
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Arduino-style EEPROM API backed by ESP-IDF NVS. Dual C/C++ interface with type-safe macros, C++ templates, RAM-buffered writes for minimal flash wear, and NVS auto-recovery. No Arduino dependency.
Building production embedded systems across IoT, industrial, robotics, and consumer electronics.
Whether you need a senior embedded engineer or want to take your startup's next big thing from napkin to shelf - I'd love to connect.