Location: RD Center, Bangpoo, Samutprakarn

Working Hours: 7:40 - 16:40 (Mon - Fri)

Department: R&D - CDBU

Job Summary:

We are seeking a Senior Testing Engineer for Failure Analysis (FA) to serve as the technical expert in diagnosing and resolving failures in switching power supply (PSU) products. This role is primarily testing focused, you will leverage deep knowledge of automation testing systems, test methodologies, and test instrumentation to investigate failures found during production and NPE (New Product Engineering) testing, determine root causes, and drive improvements in both product quality and test quality.

The ideal candidate has a deep understanding of overall system operation with particular strength in automation testing systems used in production and can leverage that knowledge to identify root causes, drive corrective actions, and improve both product quality and testing quality. You will act as the technical bridge between the production line, R&D, test engineering, and quality teams. Helping distinguish product failures from test-system induced failures, improving test coverage and robustness, and ensuring that failure insights feed back into design, manufacturing, and test processes.

Key Responsibility:

Failure Analysis through a Testing Lens:

Lead failure analysis on PSU units failing during production testing, NPE testing, and field returns.
Investigate whether failures originate from the product (design/component/process) or the test system (fixtures, instrumentation, software, test sequence) and route findings to the correct owner.
Perform structured root-cause analysis using 8D, 5-Why, Fishbone, and fault-tree methodologies.
Use lab and FA equipment (oscilloscopes, power analyzers, electronic loads, etc.) to isolate and confirm failure mechanisms.
Produce clear, traceable FA reports with evidence, conclusions, and corrective action recommendations.

Automation Test System Expertise:

Develop deep understanding of production automation testing systems, test sequences, fixtures, instrumentation, switching matrices, and test software to diagnose failures effectively.
Identify and resolve test escapes, false failures, retest issues, and test system induced failures.
Recommend and support improvements to test coverage, test limits, test stability, and test methodology based on failure trends.
Collaborate with test development teams on DFT (Design for Testability) feedback and test program enhancements.

Production & NPE Support:

Provide timely FA support to the production line to minimize downtime and contain quality escapes (containment, quarantine, disposition).
Support NPE builds and testing by analyzing early-build failures and feeding insights back to R&D and test engineering.
Participate in failure review boards (FRB) and cross-functional problem-solving teams.
Drive CAPA (Corrective and Preventive Action) and verify effectiveness.

Cross-Functional Collaboration:

Act as the technical coordinator between Production, R&D, Test Engineering, Quality, and Suppliers on failure-related matters.
Support customer facing FA investigations and technical discussions when required.
Communicate findings clearly through structured reports, presentations, and technical reviews.

Continuous Improvement & Documentation:

Maintain FA records and databases; track failure trends, Pareto analyses, and DPPM metrics.
Feed FA insights into design for reliability (DFR), DFT, test-process improvements, and manufacturing process improvements.
Contribute to FA lab capability development, procedures, and best practices.

Qualifications:

Education: Bachelor's or Master's degree in Electrical Engineering, Electronic Engineering, Power Electronics, or a related field.
Experience: 3-5 years of experience in power supply testing, test engineering, failure analysis, or product engineering for power electronics / switching power supplies.

Technical Knowledge

Strong understanding of switching power supply topologies (AC/DC, DC/DC, flyback, forward, LLC, PFC, etc.).
Hands-on experience with automation testing systems in production (test sequences, fixtures, instrumentation, test software).
Familiarity with quality tools and methodologies (8D, 5-Why, FMEA, CAPA, SPC).

Skills:

Lab & Analytical Skills: Proficiency with test and FA equipment (oscilloscopes, power analyzers, electronic loads) and test automation.
Cross-Functional Collaboration: Proven ability to work across production, R&D, test engineering, and quality teams.
Experience in high-volume manufacturing environments (contract manufacturers, EMS).
Familiarity with statistical analysis and quality tools (SPC, MSA, GR&R, Minitab, JMP).
Knowledge of FMEA, DFT/DFM, and reliability prediction methods.
Experience with test automation and scripting (Python, C, C , C#, VB.net) for test program development.
Strong analytical and troubleshooting capability for complex electrical failures

Soft Skills:

Attitude: Positive thinking, self-motivation
Analytical Mindset: Structured, logical approach to isolating complex, multi-variable failures.
Attention to Detail: Meticulous in documentation, evidence handling, and traceability.
Problem-Solving: Structured, data-driven approach to root-cause analysis and issue resolution.
Communication: Clear technical writing (FA reports) and effective cross-functional communication.
Collaboration: Team-oriented, able to influence without direct authority across production, R&D, and quality.

Website: http://www.deltathailand.com

R&D Senior Testing Engineer – Failure Analysis (CDBU)

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