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Principal Manufacturing Engineer (Subcon, Backend / Assembly)

Nexperia
July 02, 2026
Full-time
On-site
Hsinchu, Taiwan
Process Engineering Jobs, Level - Senior

Job Title

Principal Manufacturing Engineer (Subcon, Backend / Assembly)

Role Summary

Primary technical contact between Nexperia and outsourced semiconductor assembly subcontractors (OSATs). Responsible for ensuring stable, high-quality, and cost-effective IC assembly operations by driving technical alignment, resolving production issues, and monitoring subcontractor performance.

Nexperia is an equal-opportunity employer committed to inclusive recruiting and reasonable workplace adjustments.

Experience Level

Senior level β€” requires 10+ years of experience in semiconductor assembly, wafer-level, or backend manufacturing.

Responsibilities

Key responsibilities include technical oversight of subcontractor assembly sites, issue resolution, and supporting NPI and cost-improvement efforts.

  • Serve as technical interface to external subcontractor assembly/backend sites.
  • Review and approve subcontractor process or material changes as first-level technical gatekeeper.
  • Support process risk assessments and ensure changes meet quality and reliability requirements.
  • Investigate and drive resolution of production issues, yield problems, and quality deviations.
  • Monitor and manage subcontractor operational and quality KPIs.
  • Support NPI and industrialization of new packages and processes at subcontractors.
  • Lead or support cost-reduction and value-engineering initiatives.
  • Participate in audits (customer, quality, VDA) and compliance verification.
  • Support project milestones, technical reviews, and subcontractor performance reporting.

Requirements

Must-have technical experience and skills.

Must-have:

  • 10+ years of experience in semiconductor assembly, wafer-level, or backend manufacturing.
  • Proven experience in high-volume, high-mix production environments.
  • Good understanding of semiconductor packaging processes and manufacturing flows.
  • Project management experience in engineering or manufacturing settings.
  • Strong analytical and problem-solving skills.
  • Good communication and stakeholder-management skills; effective working with external partners.

Nice-to-have:

  • Experience working directly with OSAT/subcontractor partners and third-party audits.
  • Experience with yield improvement and reliability testing methodologies.

Education Requirements

Bachelor's degree in Electrical Engineering, Electronics Engineering, Mechanical Engineering, or a related technical field (as stated in the posting).


About the Company

Company: Nexperia

Headquarters: Cabuyao, Philippines

Nexperia is a global leader in semiconductor development with a focus on in-house production. The company boasts a strong international network and is dedicated to innovation and excellence in the semiconductor industry, providing a dynamic environment for its employees.

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Date Posted: 2026-07-02