Electrical/Embedded Systems Engineer

Our client runs an advertising network on TV screens inside local businesses. What makes them different is measurement: proprietary foot-traffic sensors paired with each screen that detect real-world exposure - people passing by, walk-ins, and dwell time. The sensor is their competitive moat and key patent.

You’ll own the sensor device end to end - A to Z: hardware, firmware, wireless detection, testing, and mass production. There are existing prototypes they can ship to you as a starting point, but ideally you’ll rebuild the device from scratch to make it truly production-ready. You’ll work directly with founder - fast decisions, no bureaucracy.

WHAT WILL YOU WORK ON?

• Design (or rebuild from scratch) the sensor hardware - schematic, PCB layout, component selection, power design

• Develop and optimize firmware on the microcontroller (BLE/wireless stack, sensor data capture, power management)

• Make wireless detection reliable in messy real-world conditions - interference, range, multiple devices, varying store layouts

• Own testing end-to-end - bench testing and real-environment validation, working independently and reporting to manager

• Design for manufacturing: source components and handle mass production procurement (e.g. via Alibaba or similar platforms), prepare for a contract manufacturer, and manage certification (FCC and any wireless compliance)

• Build the data path from device to our backend (device → gateway/network → server)

WHAT SKILLS AND EXPERIENCE ARE WE LOOKING FOR?

• Electrical Engineer or Embedded Systems Engineer - a true hardware guru. This is a hands-on hardware role first and foremost

• 4+ years designing embedded devices that shipped - you’ve taken hardware from prototype (or from scratch) to production, not just designed on paper

• Strong with RF / wireless, especially BLE (Bluetooth Low Energy) - antenna considerations, signal strength, interference

• Embedded firmware in C/C++ on microcontrollers (ESP32, Nordic nRF, STM32, or similar)

• PCB design (Altium, KiCad, or equivalent) and comfortable with the whole board bring-up process

• Experience with FCC / wireless certification

• Experience sourcing components and managing production runs through manufacturing marketplaces (Alibaba or similar)

• Can work fully independently and close things out - we need a finisher, not someone who needs a team around them

ARE THERE ANY OTHER REQUIREMENTS?

• IoT connectivity (WiFi/cellular/MQTT)

• Low-power/battery optimization

• Sensor fusion or motion/presence detection

• Prior consumer-hardware-at-scale experience

18:00-22:00, 5/2, UTC+5