Power Supply Debug & Test Technician

XP Power; San Jose (CA); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

ESD safety discipline

Job summary

XP Power is seeking a hands-on Debug Test Technician to troubleshoot and repair power supply assemblies on the production floor and debug lab. You will work across volume production, NPI builds, and customer returns, bridging test to engineering and driving yield improvements.

Responsibilities include diagnosing failures in power circuits, performing rework to IPC standards, and ensuring units pass retest before returning to production. On-site work with cross-functional teams is required.

Qualifications

• 2–5 years of hands-on TLA & PCBA debug experience in electronics manufacturing, ideally on switch-mode power supplies.
• Solid understanding of analog and power electronics: rectification, PFC, flyback/forward/resonant topologies, feedback loops, and protection circuits.
• Ability to read and work from schematics, BOMs, and assembly drawings; strong troubleshooting skills to component level.
• Proficiency with oscilloscopes (including differential and current probes) and digital multimeters.
• Experience with programmable AC sources, electronic loads, and power analyzers.
• Skilled SMT and through-hole soldering and rework, including fine-pitch parts.
• Safe working habits around high voltage and ESD-sensitive assemblies.
• Clear written documentation of failures and repairs; comfortable with Excel and MES or failure-tracking systems.

Responsibilities

• Debug and repair failed power supply from top level assembly (TLA) down to PCBA/component level using schematics, BOMs, and assembly drawings.
• Diagnose failures in PFC stages, primary-side switching, magnetics, isolated feedback loops, secondary-side regulation, and protection circuits.
• Turn around boards that fail in-circuit or functional test to keep WIP moving and first-pass yield up.
• Verify repaired units through retest and confirm they meet specification before returning them to the line.
• Debug failures on NPI and pilot builds, and help engineering separate design, process, and component issues.
• Provide hands-on feedback on debug access, test points, and repairability during early builds.
• Reproduce reported failures on customer returns, identify root cause, and repair or disposition units.
• Document RMA findings clearly so Quality and Engineering can respond to customers and drive corrective action.
• Perform SMT and through-hole soldering and rework, including fine-pitch components.
• Work to IPC-A-610 workmanship standards and follow ESD-safe handling at all times.
• Log every failure, root cause, and repair action in the failure database/MES with serial-level traceability.
• Build failure Pareto and trend reports, and flag emerging issues early.
• Provide data and analysis for 8D and corrective action (CAPA) investigations.
• Work with Test, Design, and Manufacturing Engineering on recurring defects; suggest DFM/DFT improvements.
• Communicate debug status, findings, and risks clearly to engineering and production leads.
• Maintain and troubleshoot functional test fixtures and stations, including AC sources, electronic loads, wiring, and interfaces.
• Support fixture upkeep such as pogo pin replacement and connector wear, and elevate tester issues to Test Engineering.

Job description

XP Power is seeking a hands-on Debug Test Technician to troubleshoot and repair power supply assemblies on the production floor and debug lab. You will work across volume production, NPI builds, and customer returns, bridging test to engineering and driving yield improvements.

Responsibilities include diagnosing failures in power circuits, performing rework to IPC standards, and ensuring units pass retest before returning to production. On-site work with cross-functional teams is required.