Senior Silicon Substrate & Packaging Manufacturing Engineer (AI)

Location: Taiwan

Company

hirify.global is building silicon, systems, and software for high-speed, lower-cost AI model execution. Founded in 2022, the company has a team of more than 70 people and offices in London and Bristol.

What you will do

• Own packaging manufacturing execution, assembly yield, and ramp performance in Taiwan.
• Define manufacturing readiness criteria and lead EVT, DVT, and PVT builds through high-volume manufacturing.
• Lead root-cause analysis, corrective actions, excursion response, and data-driven process monitoring across OSAT and substrate partners.
• Set technical performance expectations for OSATs and substrate suppliers and drive improvements in yield, cycle time, process capability, and cost.
• Own qualification, reliability closure, failure analysis, and packaging robustness for high-current-density AI workloads.
• Define ramp plans, track yield maturation, mitigate substrate and capacity risks, and lead post-ramp cost-down initiatives.

Requirements

• 8+ years of experience in semiconductor packaging manufacturing or product engineering.
• Proven experience ramping complex FC-BGA or advanced packages to volume.
• Deep knowledge of flip-chip assembly, large-body substrate warpage control, underfill and reliability interactions, assembly defect Pareto analysis, SPC, and process capability metrics.
• Strong experience working directly with Taiwan OSATs and substrate vendors.
• Demonstrated ownership of yield improvement programs.

Nice to have

• Experience with large AI or HPC ASICs.
• Exposure to 2.5D or high-bandwidth memory packaging.
• Experience ramping first-generation silicon in a startup or fast-scaling environment.
• Fluent Mandarin and English.

Culture & Benefits

• Collaborative, problem-solving culture based on curiosity, entrepreneurial initiative, and technical fluency.
• Modern, open offices in London and Bristol.
• High-accountability environment with direct influence on hardware manufacturing strategy and company growth.
• Some roles may involve export-controlled technologies and additional eligibility checks under applicable law.