Backend Process Engineer (InP Wafer Fab)

Location: Alhambra, California, United States; onsite

Salary: $100,000–$135,000 per year

Company

hirify.global develops semiconductor and photonic technologies, including InP-based photonic devices and related manufacturing solutions.

What you will do

• Own and optimize backend wafer fabrication processes for InP-based photonic devices, including lapping/thinning, n-side metallization, and rapid thermal annealing.
• Establish process windows, recipes, control limits, SPC metrics, and control strategies while maintaining stable manufacturing performance.
• Own automated optical inspection processes and improve singulation yield through data analysis, defect reduction, root-cause investigations, and corrective and preventive actions.
• Support cleaving, dicing, singulation, AR/HR optical coatings, vendor qualifications, packaging interfaces, and reliability readiness.
• Support new product introduction, process transfers, technology changes, and assessment of backend process risks for new designs, materials, and device structures.
• Author and maintain SOPs, travelers, process specifications, and control plans, while providing hands-on manufacturing and 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, and data-driven process improvement.
• Strong understanding of singulation, packaging interfaces, and reliability requirements.
• Proficiency in SPC, DOE, and statistical analysis.
• Ability to work across cross-functional manufacturing and engineering teams.

Nice to have

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

Culture & Benefits

• Full-time onsite work in Alhambra, California.
• Hands-on involvement in manufacturing, process troubleshooting, and continuous improvement.
• Cross-functional collaboration with packaging, device, reliability, manufacturing, and engineering teams.
• Base salary range of $100,000–$135,000 per year, determined by qualifications, skills, education, experience, location, and other compensation factors.