Staff / Sr Test Operations Engineer - OSAT
RenesasJob Title
Staff / Sr Test Operations Engineer - OSAT
Role Summary
Provide test operations and engineering support for products after manufacturing release, working with internal factories and OSAT test suppliers in the region to meet test KPIs.
Drive operational excellence through yield, OEE, cycle time and cost improvements, and coordinate with Product, Supply Chain, Quality and Manufacturing teams across APAC, US and Japan.
Experience Level
Senior level. Preferably more than 5 years' experience in high-volume semiconductor test manufacturing, including Probe/WLCSP and Final Test operations.
Responsibilities
Primary day-to-day and project responsibilities include:
- Act as test-operations interface to Renesas Product Groups and cross-functional teams (Supply Chain, Quality, Packaging, Foundry, PMO) across multiple countries.
- Manage daily test operations with internal factories and OSATs: lot tracking/dispositions, test program releases, hardware troubleshooting/repairs, and equipment uptime.
- Monitor tester utilization and OEE, track cycle time, retest and yield metrics, and implement continuous improvement actions.
- Coordinate probe/final test transfers from NPI to high-volume manufacturing.
- Plan and execute new test capacity expansions (testers, handlers, hardware) to meet production demand.
- Deploy new tester/handler technologies and test solutions to manufacturing sites.
- Implement best practices at test sites and lead initiatives to improve gross margins through OEE, yield and retest reductions.
Requirements
Essential technical skills, experience and constraints for the role.
- Minimum 5+ years’ experience in high-volume semiconductor test manufacturing (probe/WLCSP and final test) preferred.
- Hands-on experience with major ATE tester platforms (e.g., Teradyne UltraFLEX/Flex, Advantest 93k).
- Familiarity with test processes, equipment operations and production planning concepts.
- Strong problem-solving skills (8D, Why-Why analysis) for process and manufacturing issues.
- Good understanding of test methodology for analog/digital/power products, failure analysis and reliability testing.
- Strong communication and interpersonal skills to interact across levels and geographies.
- Demonstrated project management skills to lead capacity expansions and deployments.
- Singapore citizen or Permanent Resident required.
Nice-to-have:
- Familiarity with OSAT test operations management.
- Proficiency with WLCSP probing hardware, test probers and map merging.
- Experience with statistical data-analysis tools (JMP, Spotfire, etc.).
Education Requirements
Minimum bachelor’s degree in Electrical, Electronic, Computing or a related engineering discipline.
About the Company
Company: Renesas
Headquarters: Hitachinaka, Japan
Renesas is a global leader in embedded semiconductor solutions, providing high-quality products across automotive, industrial, infrastructure, and IoT sectors. With over 22,000 employees in more than 30 countries, the company focuses on scalable solutions that enhance user experience and drive innovation while committed to sustainability and energy efficiency.
