Backend Process Engineer (InP Wafer Fab)

Location: Alhambra, California, USA; onsite

Salary: $100,000–$135,000 per year

Company

hirify.global develops semiconductor technologies and photonic solutions.

What you will do

• Own and optimize backend wafer fabrication processes for InP-based photonic devices, including wafer lapping and thinning, n-side metallization, and rapid thermal annealing.
• Establish process windows, recipes, control limits, SPC metrics, and control strategies for backend modules.
• Manage automated optical inspection, analyze inline and post-process data, and drive yield improvement and defect reduction.
• Support cleaving, dicing, singulation, AR/HR optical coatings, vendor qualifications, and packaging readiness.
• Support new product introduction, process transfers, technology changes, and backend risk evaluation.
• Author SOPs, travelers, process specifications, and control plans while providing manufacturing troubleshooting support.

Requirements

• Bachelor’s degree or higher in Chemical Engineering, Materials Science, Electrical Engineering, Physics, or a related field.
• At least 3 years of experience in backend semiconductor processing.
• Hands-on experience with lapping/thinning, metallization, and thermal processes.
• Understanding of InP-based or III-V compound semiconductor wafer fabrication processes.
• Experience with AOI systems, yield analysis, SPC, DOE, and statistical process improvement.
• Understanding of singulation, packaging interfaces, and reliability requirements, with the ability to collaborate across manufacturing and engineering teams.

Nice to have

• Experience with InP or III-V optoelectronic devices.
• Familiarity with AR/HR optical coating processes.
• Experience in high-mix, low-volume manufacturing environments.

Culture & Benefits

• Full-time onsite manufacturing and engineering role.
• Hands-on collaboration across packaging, device, reliability, manufacturing, and engineering teams.
• Work focused on manufacturing stability, yield, defect reduction, and continuous process improvement.