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# Electrical Engineer (Embedded Hardware / Wearable Sensors)

- **Company:** PlayFast LLC
- **Location:** Columbus, OH, United States
- **Salary:** $145,600.0 - $270,400.0
- **Contract:** Permanent contract
- **Skills:** Computer-Aided Design, Bluetooth, Computer Engineering, Software Debugging, Embedded Software, Firmware, Flash Memory, Data Logging, Bare Metal
- **Published:** July 2, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=bb8156f97d5b272d

## About the Role

* BS in Electrical Engineering, Computer Engineering, or equivalent hands-on experience
 * Proven experience designing and bringing up custom PCBs, ideally with a wireless MCU (Nordic nRF5x a strong plus)
 * Solid grasp of power electronics: regulators, battery charging, low-power design, and reading a datasheet to spec the right part
 * Comfortable at the bench with a scope, multimeter, logic analyzer, and a SWD programmer (J-Link experience a plus)
 * Experience with BLE hardware: antenna layout, RF matching, and debugging radio-vs-power issues
 * Familiarity with sensor integration over SPI/I2C (IMUs, flash memory)
 * A debugging mindset: you isolate the variable, prove the root cause, and do not guess

Nice to have

 * Embedded firmware exposure (Zephyr / nRF Connect SDK, or bare-metal C)
 * Experience taking a product from prototype to small-batch manufacturing
 * DFM, test fixture, or production-bring-up experience
 * Interest in sports, wearables, or consumer hardware

## Description

You will be the hardware lead on our custom sensor board. That means taking a design from schematic through to a board that powers up cleanly, talks reliably over Bluetooth, and survives being swung on the end of a lacrosse stick. You will work directly with the founder and our firmware effort. This is a hands-on role: you will be at the bench with a board, a programmer, and a multimeter, not just in a CAD tool.

What you will do

 * Design, lay out, and revise custom PCBs around the Nordic nRF52840 (BLE SoC)
 * Own the power section: battery management, LDO/regulator selection, and a clean power path from USB and battery to the radio and sensors
 * Bring up new board revisions: flash via SWD/J-Link, validate rails, debug why a radio works on one power path but not another, and isolate failures down to a specific component (regulator, cap, trace)
 * Integrate and validate peripherals: a high-g IMU (accelerometer/gyro), SPI NAND flash for onboard data logging, and the BLE antenna path
 * Work alongside firmware to make sure the hardware and the embedded code agree on pin maps, interfaces, and timing
 * Design for manufacturing and for a real product: antenna tuning, mechanical fit, durability, and battery life
 * Document schematics, pin maps, and bring-up procedures so the work is repeatable


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