Sr Test Engineer

We are seeking an experienced Semiconductor Test Engineer to join our engineering team in Kodaira, Tokyo, Japan.

This is a hands-on technical role with the opportunity to develop and deploy production test solutions for advanced semiconductor products. You will work across the full test-development lifecycle, from test strategy and hardware development through characterization, qualification, production release, and continuous improvement.

The role has a strong focus on quality, manufacturability, test coverage, test efficiency, yield, and cost of test, while providing opportunities to solve challenging technical problems and collaborate with engineering and manufacturing teams around the world.

Key Responsibilities

• Develop and implement semiconductor test strategies, test plans, DFT requirements, test methods, and ATE solutions for wafer sort/probe, characterization, qualification, and final production test.
• Develop, debug, optimize, and maintain ATE test programs using C/C++ and platform-specific programming environments, with focus on test coverage, measurement accuracy, test time, multisite efficiency, yield, and cost of test.
• Develop robust test solutions for power ICs and analog/mixed-signal semiconductor products, including appropriate techniques for high-current testing.
• Design and debug test hardware, including load boards, DUT interface boards, probe interfaces, and associated circuitry.
• Validate test solutions through pre-silicon simulation to verify test methods, test-program functionality, and ATE implementation prior to first silicon.
• Apply strong analog and mixed-signal engineering fundamentals to troubleshoot complex interactions among the device, ATE, test program, test hardware, and manufacturing environment.
• Perform test-method validation and production-readiness activities, including ATE-to-bench correlation, spike-check, characterization, GR&R, guardband analysis, and test-limit validation.
• Drive improvements in test time, multisite efficiency, yield, test robustness, and cost of test.
• Establish test-development milestones, schedules, dependencies, technical risks, and mitigation plans, and communicate progress and issues clearly to project stakeholders.
• Collaborate with product, design, DFT, systems, manufacturing, quality, and other engineering teams across Japan and global locations.
• Provide technical guidance and mentoring to other engineers and contribute to continuous improvement of test engineering methods and processes.