DQA Engineer (Power) - Taipei

Location: Riga, Riga, Latvia

About Ubiquiti 

At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT.

Responsibilities

• System quality assurance for shipping good quality
• Set testing cases and standards for reliability and design qualifications.
• Set compatibility of UPS/PDU Products
• Set standards to ORT labs for temperature/thermal/reliability/ESD/Surge etc.
• Proficient in using oscilloscopes, electronic loads, LCR meters, power meters, and safety testing equipment (Hi-Pot, insulation resistance testers).
• Capable of writing test plans and conducting failure analysis (FA, Failure Analysis).
• Proficiency in MTBF (Mean Time Between Failures) and FMEA (Failure Mode and Effects Analysis).
• Experience in environmental testing for power systems (high/low temperature, humidity, vibration, EMC, surge protection).
• Understanding of UL, CE, FCC, IEC 62040, EN 55032, RoHS, REACH, and other power-related safety standards.
• Knowledge of ESD (Electrostatic Discharge), EMI/EMC (Electromagnetic Interference/Compatibility), and safety testing requirements.

Minimum Qualifications (MUST-haves) :

• Bachelor degree
• Hardware testing/validation experience in UPS/PDU-related products
• Knowledge of networking/radio/Linux operation
• Proficiency in using a multimeter, thermal chamber, data log, and EMC compliance relative
• 5+ years of working experience in the hardware test or design quality test field
• Love to try and play with new technology and learn the ropes to be the lead test engineer
• Familiar with multimeter, Oscilloscope, spectrum analyzer, thermal chamber, power supply, Ethernet traffic analyzer, and electronic load
• Good knowledge of setting wireless and Ethernet testing cases.
• Experience in hardware testing on POE or battery-powered devices is a plus
• Experience in PoE testing, ESD, thermal testing, power consumption testing, RMA failure analysis and tracking, reliability testing, 2nd Source verification, mechanical inspection, etc.
• Familiarity with firmware validation and embedded system testing (e.g., microcontrollers in inverters and BMS).
• Familiarity with VRLA (AGM, Gel), Lithium-ion (Li-ion, LFP, NMC), and Nickel-Metal Hydride (NiMH) batteries.
• Understanding of charge and discharge principles, SOC (State of Charge), SOH (State of Health), and DOD (Depth of Discharge).
• Knowledge of internal resistance (IR), cycle life, and self-discharge characteristics of batteries.
• Proficient in using battery testers (Battery Analyzer, BMS Analyzer) for cycle life testing.
• Understanding of UPS charge/discharge characteristics testing to ensure stable power supply under different load conditions.
• Familiarity with cell-balancing techniques to maintain consistency in multi-cell battery packs.
• Knowledge of thermal testing, short circuit protection testing, and surge current testing to ensure UPS battery safety.

Preferred Qualifications (Nice-to-haves / Plus) :

• Basic knowledge of MTBF calculation/test
• Understanding of solar cell technologies (monocrystalline, polycrystalline, thin-film, PERC, TOPCon, HJT, etc.).
• Familiarity with PV system architecture, including solar panels, MPPT (Maximum Power Point Tracking), inverters, and battery storage systems.
• Knowledge of power conversion (DC-DC, DC-AC), grid-tied vs. off-grid systems, and hybrid energy storage solutions.
• Experience in solar inverters, power optimizers, and battery management systems (BMS) testing.
• Understanding of thermal management, aging effects, and degradation mechanisms of solar panels.
• Knowledge of reliability testing methods such as HALT (Highly Accelerated Life Test), HASS (Highly Accelerated Stress Screening), and MTBF (Mean Time Between Failures).
• Familiarity with FMEA (Failure Mode and Effects Analysis) for solar power systems.
• Experience in PV module degradation analysis (LID - Light-Induced Degradation, PID - Potential-Induced Degradation).
• Ability to perform environmental stress testing (high temperature, humidity, UV exposure, salt mist corrosion, mechanical stress).
• Experience in Lead-Acid batteries and LPF(Li) batteries will be a plus.