Sustaining Test Engineer

Tenstorrent · Semiconductors · Taiwan · DFT and Test

This role is for a Sustaining Test Engineer in Taiwan, focusing on supporting semiconductor test operations at OSAT partners. The engineer will be responsible for driving yield improvements, resolving manufacturing issues, and ensuring the successful deployment of test solutions. Key responsibilities include validating and maintaining test programs, analyzing test data, leading investigations for RMA and customer returns, and managing business continuity for test operations. The role requires hands-on ATE experience and strong debugging skills in a production environment.

What you'd actually do

  1. An on-site engineering owner at OSAT to support yield issues, production debug, and NPI-to-volume ramp for multiple products.
  2. A test expert to validate, deploy, and maintain test programs for wafer sort, package test, and SLT, and to coordinate hardware maintenance, calibration, and equipment qualification with OSAT.
  3. Someone who can analyze large volumes of test data, perform yield and statistical analysis, and drive data-based decisions on test coverage, yield, and cost.
  4. A quality-focused engineer familiar with ISO 9001, IATF 16949, AEC-Q100/Q104, and 8D/CAPA, able to lead RMA and customer return investigations to closure.
  5. A proactive problem-solver who can manage business continuity (equipment failures, material shortages, capacity constraints) and drive quality containment for test escapes and new failure mechanisms.

Skills

Required

  • BS/MS in EE/ECE/CE
  • 5+ years of experience in semiconductor test engineering
  • Hands-on ATE experience with Teradyne and/or Advantest platforms
  • Strong debugger across hardware, software, and DUT interfaces
  • Comfortable working independently in a fast-paced production environment
  • Clear communication with HQ and OSAT teams
  • Fluent in Mandarin
  • Strong English proficiency
  • Experience with ISO 9001, IATF 16949, AEC-Q100/Q104, and 8D/CAPA
  • Ability to lead RMA and customer return investigations

Nice to have

  • Experience with advanced packaging
  • Experience with automotive quality (AEC-Q100/Q104)

What the JD emphasized

  • on-site support at our OSAT partners in Taiwan
  • primary technical interface for production test operations
  • driving yield improvements
  • resolving manufacturing issues
  • ensuring successful deployment of test solutions
  • hands-on ATE experience
  • strong debugger
  • working independently
  • fast-paced production environment
  • fluent in Mandarin with strong English proficiency
  • advanced packaging and/or automotive quality (AEC-Q100/Q104) is a strong plus
  • yield issues
  • production debug
  • NPI-to-volume ramp
  • test expert
  • validate, deploy, and maintain test programs
  • wafer sort, package test, and SLT
  • coordinate hardware maintenance, calibration, and equipment qualification
  • analyze large volumes of test data
  • perform yield and statistical analysis
  • drive data-based decisions
  • test coverage, yield, and cost
  • quality-focused engineer
  • ISO 9001, IATF 16949, AEC-Q100/Q104, and 8D/CAPA
  • lead RMA and customer return investigations to closure
  • proactive problem-solver
  • manage business continuity
  • equipment failures, material shortages, capacity constraints
  • drive quality containment
  • test escapes and new failure mechanisms
  • scale complex products in high-volume OSAT environments
  • owning the full loop from test program bring-up to mature production
  • Advanced techniques in test coverage optimization, yield improvement, and cost reduction
  • wafer, package, and system-level test insertions
  • Practical application of automotive and advanced packaging quality flows
  • reliability testing and JEDEC qualification in a production context
  • operate as a bridge between HQ product/test engineering and OSAT operations
  • influencing decisions on design-for-test, test strategy, and quality
  • Best practices in building institutional knowledge
  • documenting failure modes, debug methodologies, and structured improvement plans
  • shape future product generations
  • eligible to access U.S. export-controlled technology
  • U.S. export laws
  • U.S. Export Administration Regulations (EAR)
  • compliance with these laws
  • nationals of certain countries
  • EAR Country Groups D:1, E1, and E2
  • persons located in the U.S. and all countries outside the U.S.
  • direct and/or indirect access to information, systems, or technologies subject to these laws
  • offer may be contingent upon your citizenship/permanent residency status
  • ability to obtain prior license approval from the U.S. Commerce Department or applicable federal agency
  • employment is not possible due to U.S. export laws
  • offer of employment will be rescinded