Engineer II, Manufacturing Test Engineer

ASE SEMICONDUCTOR (PENANG) SDN. BHD.; Bayan Lepas; On-site; MYR 70,000 - 110,000; Full time

Job summary

ASE Semiconductor (Penang) Sdn. Bhd. seeks a Test Engineer to develop, implement, and optimize manufacturing test solutions for high-performance semiconductor products. You will design test hardware and software to ensure coverage, efficiency, robustness, and manufacturability.

You will troubleshoot production issues, support test program releases, and drive yield improvements through data analysis and collaboration with cross-functional teams.

Qualifications

• Bachelor's degree required in electronics or related field.
• 3–5 years in semiconductor test engineering.
• Experience with analog/mixed-signal testing is preferred.
• Independent problem-solving and debugging skills.

Responsibilities

• Develop, implement, and optimize semiconductor test solutions.
• Design test hardware and software for coverage and efficiency.
• Troubleshoot production test issues to minimize downtime.
• Support test program releases and maintenance of test hardware.
• Lead yield improvement initiatives through test optimization.
• Collaborate with cross-functional teams to resolve testability issues.
• Perform correlation and data analysis on test results.
• Document procedures and results for traceability.

Skills

Analytical thinking

Troubleshooting

Structured problem-solving

Communication skills

Team collaboration

Education

Bachelor's degree in Electronics Engineering

Tools

NI STS

Teradyne

ETS364

Job description

Develop, implement, and optimize manufacturing test solutions for high-performance semiconductor products.

Design, develop, and validate test hardware and software to ensure optimal test coverage, efficiency, robustness, and manufacturability.

Independently troubleshoot and resolve complex test issues during production to ensure timely and accurate test results while minimizing manufacturing downtime.

Support and drive test program releases and maintain test hardware health, including load board debugging, repair coordination, and performance monitoring.

Review, validate, and coordinate new test program releases for production readiness, ensuring test quality, coverage, and stability.

Lead and drive yield improvement initiatives through test optimization, test time reduction, coverage enhancement, and systematic root-cause analysis.

Collaborate with cross-functional teams to resolve complex testability, product performance, quality, and production ramp issues.

Support and improve final test operations, including capacity planning, production troubleshooting, tester utilization, and overall test robustness.

Perform and analyze correlation, characterization, and limit generation activities during new product introduction and production transfer.

Conduct statistical data analysis to identify test data correlations, performance trends, yield excursions, and improvement opportunities.

Drive structured problem-solving and corrective actions for test-related manufacturing issues and ensure effective implementation of solutions.

Document test procedures, technical results, lessons learned, and process changes to ensure traceability and knowledge sharing.

Interface with external test equipment and hardware vendors to address technical issues and ensure equipment readiness and performance.

Provide technical guidance and mentorship to junior engineers and technicians on test processes, troubleshooting methodologies, and engineering best practices.

Participate in continuous improvement initiatives related to manufacturing efficiency, test quality, cost reduction, and equipment performance.

Minimum Qualifications

Bachelor’s degree in Electronics Engineering, Electrical Engineering, or a related field.

3–5 years of relevant experience in semiconductor manufacturing, product test, or test engineering.

Experience in analog/mixed-signal semiconductor product testing is an advantage.

Demonstrated experience in independently troubleshooting and resolving manufacturing test issues.

Technical Skills

Strong understanding of analog and digital circuits, semiconductor device fundamentals, and production test principles.

Hands-on experience with ATE platforms such as NI STS, Teradyne, ETS364, or equivalent semiconductor test systems.

Programming proficiency in C, C++, Python, LabVIEW, Java, Perl, or other relevant programming languages.

Strong hands-on troubleshooting skills using laboratory equipment such as oscilloscopes, DMMs, signal generators, and other test instrumentation.

Competency in statistical analysis methodologies for test data correlation, yield evaluation, characterization, and root-cause analysis.

Experience with test hardware debugging, test program validation, correlation, characterization, and production release.

Ability to analyze production test data and identify improvement opportunities related to yield, test time, test coverage, and manufacturing performance.

Soft Skills

Strong analytical, troubleshooting, and structured problem-solving skills.

Good communication and teamwork skills with the ability to work effectively across engineering and manufacturing functions.

Ability to work independently in a fast-paced manufacturing environment and manage multiple technical priorities.

Demonstrated ownership and accountability in driving technical issues through resolution.

Ability to provide technical guidance and mentor junior engineers and technicians.

Strong continuous-improvement mindset with the ability to identify and drive practical improvements.