Senior Substrate Layout Design engineer

Piper Companies is seeking a Senior Substrate Layout Designer who will be responsible for leading the design of advanced multi-die substrate packages. The layout designer will be onsite 5 days a week in Saratoga, CA or remote working Pacific coast time hours.

• Lead the end-to-end physical layout of high-density, multi-die substrate design.
• Design and optimize bump maps, breakout routing, via structures, and layer stack-ups.
• Collaborate with ASIC, signal integrity, and power teams to ensure clean escape routing and breakout strategies
• Evaluate routing feasibility in co-design environments, considering die floor plans and mechanical constraints.
• Drive DRC, DFM, and manufacturing rule checks to ensure fabrication readiness.
• Interface with substrate vendors and OSATs for tape-out and manufacturability validation.
• Conduct technical reviews and iterate on layout improvements with internal and external stakeholders

• 6 - 8+ years of experience in substrate layout design for high-performance IC packaging
• Proven experience expertise in organic substrate design from silicon to BGA
• Deep understanding of chiplet-based, multi-die, and advanced packaging (FPGA, CPU, CPU, MCM, CoWoS)
• Strong collaboration skills with ASIC, signal, and power teams
• Proficiency in Cadence Allegro APD, AutoCAD, or Siemens Xpedition.
• Experience working with OSATs and substrate supplies
• Bachelor’s degree in Electrical Engineering or equivalent experience.

• Salary range: $230,000 - $270,000
• Comprehensive benefits:
  Medical, Dental, Vision, 401k, PTO, holidays, and sick leave as required by law.

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This job is open for applications on 10/23/2026. Applications for this job will be accepted for at least 30 days from the posting date.