Silicon Photonic Engineer (CPO)

The role

This person will develop and optimize silicon photonic devices and building blocks for CPO-focused platforms. They will work on process integration, advanced packaging, and transitioning designs into high-volume manufacturing.

What you will do

• Develop and optimize silicon photonic devices and building blocks for CPO-focused platforms.
• Contribute to the creation and refinement of process integration flows.
• Support the evolution of PDK components and design rules.
• Partner with cross-functional teams to align technical requirements and deliverables.
• Guide products through the full lifecycle from early development to ramp-to-production.
• Investigate device or process issues through structured analysis.
• Participate in customer and partner engagements.
• Contribute to continuous improvement initiatives to enhance yield and streamline processes.

Required qualifications

• Advanced degree (MS or PhD) in Electrical Engineering, Electrical & Computer Engineering, or a related field.
• Strong foundation in silicon photonics device design, optical interconnect concepts, and photonic integration.
• Experience with process integration, backend assembly techniques, or advanced packaging for photonic systems.
• Familiarity with transitioning photonic technologies from development into production environments.
• Hands-on exposure to device design, cleanroom fabrication, and photonic device testing or characterization.
• Ability to collaborate effectively across multidisciplinary teams and communicate complex technical topics clearly.
• Strong analytical and problem-solving skills.

Nice to have

• Background in CPO architectures, high-speed optical interconnects, or photonic packaging solutions.
• Experience contributing to or developing PDKs for silicon photonics platforms.
• Exposure to backend processes such as Cu bumping, laser diode attach, TSV, or fiber-related assembly.
• Prior involvement in customer-driven development programs or industry collaborations.
• Publications, patents, or recognized contributions in silicon photonics or related fields.

Benefits

• Competitive salary commensurate with experience
• Comprehensive benefits package including health insurance
• Professional development opportunities and certification support
• Access to cutting-edge photonics technology and advanced packaging environments
• Collaborative work environment

About the company

Lumilens is building critical photonics infrastructure for AI supercomputing, including chip-to-chip optical interconnects and scalable photonic engines. The company is a well-funded startup backed by Mayfield.