Hardware & Device Test Engineer

We are looking for a technically curious, detail-oriented Part-Time Hardware & Device Test Engineer to support the testing and validation of connected medical alert and mobile personal emergency response system (mPERS) devices.This is a hands-on engineering role working with real production and pre-production connected devices, including cellular-enabled pendants, smartwatches, wearable devices, charging accessories, and related hardware.The individual will work closely with our Product & Technology team and support testing of both new hardware products and firmware/software updates to existing products.

Requirements

· Execute structured test plans against new firmware releases and hardware revisions.

· Perform functional and regression testing to verify that existing features continue to work after firmware changes.

· Test pre-production engineering samples during hardware development and validation.

· Reproduce reported device problems and document the conditions under which issues occur.

· Compare behavior across hardware versions, firmware versions, device configurations, and cellular networks.

· Retest defects after engineering or vendor fixes are delivered.

· Test devices using major U.S. cellular networks and multiple SIM configurations.

· Validate device activation, network registration, incoming and outgoing calls, SMS commands, and data communication.

· Assist with troubleshooting configuration, APN, SIM, and cellular-network-related issues.

· Capture test details and logs needed for escalation to hardware manufacturers, module suppliers, and engineering teams.

· Document defects with clear reproduction steps and supporting evidence.

· Capture photos, video, logs, screenshots, call information, and other supporting data when useful.

· Maintain test checklists and regression-test results.

· Functional testing of engineering samples.

· Battery and charging testing.

· Audio and speaker testing.

· Button and user-interface behavior.

Qualification:

· Hands-on experience troubleshooting electronic devices.

· Understanding of basic electronics and computer hardware.

· Familiarity with firmware, embedded systems, IoT devices, or microcontrollers.

· Familiarity with cellular technologies, SIM cards, LTE, Bluetooth, GPS/GNSS, or wireless communications.

· Ability to methodically isolate variables when troubleshooting a problem.

· Comfort working with spreadsheets and structured test documentation.

· Ability to read technical specifications and follow engineering test procedures.

Experience with tools such as serial consoles, AT commands, log files, command-line utilities, APIs, Python, Arduino, Raspberry Pi, oscilloscopes, multimeters, or similar engineering tools is a plus, not a requirement.