Part-Time Hardware & Device Test Engineer

LifeStation•Union, NJ

9d•Onsite

About The Position

LifeStation is a mission-driven healthcare technology company providing personal safety and remote monitoring solutions for older adults. Founded in 2004 and headquartered in Union, New Jersey, LifeStation remains privately held and focused on transforming the lives of the rapidly growing senior population in the U.S. through personal emergency response systems (PERS) and other technology-enabled health services. Its in-home, mobile, and smartwatch-enabled solutions promote safety and independence for older adults while delivering actionable insights to caregivers and care teams to support continuity of care. 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

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.

Nice To Haves

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.

Responsibilities

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.