Senior​/Principal Silicon Photonics Design Engineer

PR Photonics is developing next-generation silicon photonic technologies for AI infrastructure, optical interconnects, and photonic computing systems. Our mission is to remove communication bottlenecks limiting future AI systems through highly scalable, energy-efficient photonic integrated circuits and optical engines. We are building breakthrough technologies that will power the next generation of AI datacenters and advanced computing platforms.

We are seeking a Silicon Photonics Design Engineer to join our growing engineering team. You will work across the full product development cycle—from device design and simulation through tape-out, characterization, and product validation. This is an opportunity to develop cutting-edge silicon photonic devices and help bring innovative technologies from concept to production.

• Design and optimize silicon photonic integrated circuits (PICs), including modulators, filters, couplers, and microring-based devices
• Perform optical, electromagnetic, thermal, and system-level simulations
• Support tape-outs and collaborate with semiconductor foundries
• Develop and execute device characterization plans
• Analyze experimental results and correlate measurements with simulations
• Support product development, yield improvement, and reliability efforts
• Collaborate with packaging, test, manufacturing, and research partners

• Ph.D. in Photonics, Optics, Electrical Engineering, Applied Physics, or related field; or M.S. with relevant industry experience
• Experience in silicon photonics, integrated optics, or photonic device development
• Experience designing and characterizing photonic integrated circuits
• Familiarity with photonic simulation tools such as Lumerical, COMSOL, Opt Sim, HFSS, or similar
• Hands‑on laboratory experience with optical testing and characterization
• Strong analytical and problem‑solving skills

• Experience with high-speed silicon photonic modulators
• Experience with WDM systems and microring architectures
• Familiarity with co‑packaged optics or optical interconnect technologies
• Python programming and simulation automation experience
• Experience working with semiconductor foundries and packaging partners

• Performance‑based bonuses

• Help build breakthrough technologies for AI infrastructure
• Direct impact on product and technology direction
• Meaningful equity participation
• Collaborative startup environment
• Opportunity to work alongside world‑class photonics engineers

PR Photonics is an Equal Opportunity Employer.