Silicon Photonics Design Engineer

Location: Singapore; on-site

Company

hirify.global develops production-bound silicon photonic systems for AI infrastructure and hyperscale applications.

What you will do

• Design and optimize silicon photonic devices and circuits, including high-speed MZI and ring modulators, photodetectors, receivers, couplers, filters, and routing components.
• Run electromagnetic, circuit, and thermal simulations to meet bandwidth, insertion-loss, extinction-ratio, and efficiency targets.
• Implement PIC layouts using foundry PDKs and support tapeout flows.
• Co-design photonic integrated circuits with electronics and packaging teams for CPO/NPO systems, accounting for RF effects, parasitics, signal integrity, and thermal constraints.
• Support silicon bring-up and characterization by correlating measurements with simulations and driving design improvements.
• Contribute to design libraries, modeling, and methodology development.

Requirements

• PhD in Electrical Engineering, Physics, or a related field, preferably in silicon photonics or a closely related area.
• 0–5 years of relevant experience, including fresh PhD graduates.
• Experience designing and simulating silicon photonic devices or PICs, with a strong understanding of guided-wave optics and device physics.
• Familiarity with Lumerical, COMSOL, or equivalent simulation tools.
• Exposure to PIC layout and tapeout flows, including PDK and DRC/LVS processes.
• Basic understanding of optical communication systems and/or RF effects.

Nice to have

• Experience with high-speed devices exceeding 100 GHz bandwidth or equivalent.
• Exposure to CPO/NPO or optical transceiver architectures.
• Familiarity with SiPh and III-V integration.
• Experience with inverse design or adjoint methods, such as Meep.

Culture & Benefits

• Work on real products operating at 200G/lane+ rather than research prototypes.
• Contribute directly to AI infrastructure and hyperscale systems.
• Move through fast design-to-silicon-to-system iteration cycles.
• Take ownership early in the career.
• Receive a comprehensive benefits package including health insurance.
• Collaborate with engineering and R&D teams.