Test Maintenance Engineer

Job Description
We are seeking an experienced Test Maintenance Engineer to support and sustain Final Test (FT) operations in a high-volume semiconductor manufacturing environment. This role focuses on maintaining stable test performance, resolving production test issues, supporting equipment and hardware, and ensuring consistent product quality and manufacturing efficiency.
Key Responsibilities Sustain and maintain FT ATE test programs for mass production
Provide daily production test support to ensure stable test operations
Troubleshoot and resolve test-related issues including yield drops, tester alarms, and test escapes
Perform test correlation, limit validation, and guard band verification
Support test hardware maintenance (load boards, sockets, cables, probe interfaces)
Coordinate with Equipment, Process, and Manufacturing teams to resolve tester and handler issues
Monitor and analyze FT yield, bin distribution, and test performance metrics
Support engin...