Abbigail Magdaleno
Milpitas
Summary
Results-driven Quality and Failure Analysis professional with extensive experience in root-cause investigations, hardware verification, and cross-functional quality assurance for Class II medical devices. Proven track record of leveraging data analysis and diagnostic tools to reduce field failures by up to 90%. Adept at bridging the gap between QA, R&D, and firmware teams to implement corrective and preventive actions (CAPA) under ISO 13485 regulations.
Overview
5
5
years of professional experience
1
1
Certification
Work History
Senior Failure Analysis Technician
LXE Hearing
San Jose
02.2023 - Current
- Diagnosed a critical firmware handshake timing issue causing charger communication failures; drove a firmware optimization update that reduced Return Merchandise Authorizations (RMAs) by 90%.
- Spearheaded the investigation of galvanic corrosion on contact pins exposed to harsh environments; collaborated with firmware teams to implement an idle-voltage fix, resulting in an 89.6% reduction in field failures.
- Led complex, data-driven failure analysis projects targeting critical hardware and firmware issues, including charging failure modes, Bluetooth connectivity, audio degradation, and power management.
- Executed technical triage and teardowns, conducting physical, functional, and destructive testing on PCBs, flex circuits, soldering integrity, and batteries to identify failure modes.
- Captured anomaly data using precision diagnostic hardware (oscilloscopes, multimeters, calipers, power supplies) and presented actionable findings to R&D and QA engineering stakeholders, facilitating informed decision-making.
Senior Hardware Test Technician
Eargo
San Jose
07.2024 - 07.2025
- Managed validation testing for Qi wireless charging functionality ahead of product launch, identifying and resolving critical environmental defects to achieve a 90% reduction in corrosion-related failures.
- Executed hardware and firmware verification activities for new user configurations, managing bug tracking and lifecycle logging to ensure timely resolution workflows within Jira.
- Collaborated with Firmware, Software, Systems, and QA teams to isolate and resolve complex edge-case testing failures, improving overall test coverage and reliability.
- Authored comprehensive Work Instructions (WIs) for Design Validation Testing (DVT) prototype bring-up, standardizing quality protocols across cross-functional engineering teams.
Physical Therapy Aide
Bodies in Motion
Mountain View
08.2021 - 01.2023
- Assisted patients in completing therapeutic activities to enhance recovery and mobility.
- Operated medical equipment (EMS, Ultrasound, TENS) to support patient treatment plans.
Education
Bachelor of Science - Neuroscience, Physiology and Behavior
University of California, Davis
Davis09-2021
Skills
- Root cause analysis
- Test plan development
- Quality compliance
- Firmware optimization
- Hardware diagnostics
- Data analysis
- Tools & Equipment: Multimeters, Oscilloscopes, Calipers, Power Supplies, Qi Charging Validation
- Project management tools
- Cross-functional collaboration
- Bug tracking management
- Data interpretation
Certification
ASQ Certified Quality Process Analyst, 04/01/24
Timeline
Senior Hardware Test Technician
Eargo
07.2024 - 07.2025
Senior Failure Analysis Technician
LXE Hearing
02.2023 - Current
Physical Therapy Aide
Bodies in Motion
08.2021 - 01.2023
Bachelor of Science - Neuroscience, Physiology and Behavior
University of California, Davis