Principal Advanced IC Packaging Engineer

Piper Companies is seeking a Principal Advanced IC Packaging Engineer who will develop and refine Chip-on-Wafer-on-Substrate technology for an up and coming AI network platform company focused on AI and datacenter technology. The Advanced IC Packaging engineer will be onsite 5 days a week in Saratoga, CA.

• Innovate and enhance CoWoS packaging processes to boost chip performance, power efficiency, and reliability.
• Collaborate with design, test, and manufacturing teams to ensure flawless chip-package integration.
• Lead failure analysis and drive yield improvements across packaging processes.
• Ensure CoWoS packaging meets all thermal, mechanical, and electrical performance standards.
• Support new product introduction (NPI) from initial prototyping to high-volume manufacturing.
• Partner with foundry and OSAT partners (e.g., TSMC, ASE, Amkor, SPIL) on process qualification and production ramp-up.

• 15 years of hands-on experience in advanced semiconductor packaging and interconnect processes.
• Proven expertise in CoWoS / FOCoS (highly preferred), or FOWLP; familiarity with EMIB, InFO, and advanced 2.5D/3D integration technologies is a plus.
• Strong knowledge of thermal management, reliability testing, and signal/power integrity challenges.
• Excellent analytical and problem-solving skills with a proactive and collaborative mindset.
• Experience working with TSMC and leading OSATs.
• Previous experience working with Module integration technologies and methodologies
• Proficiency in Mandarin and English is preferred.
• Bachelor’s or Master’s degree in Electrical Engineering, Materials Science, Mechanical Engineering, or a related field.

• Salary range: $210,000 - $300,000
• Comprehensive benefit package:
  Medical, Dental, Vision, 401k match plus PTO, Sick leave as required by law, and Paid Holidays

This job opens for applications on 3/31/2026. Applications for this job will be accepted for at least 30 days from the posting date.