Senior OSAT Engineer

Role Overview

• Lead technical engagement with OSAT suppliers on assembly and test process development, yield ramp, quality improvement, and volume manufacturing readiness.
• Drive new product introduction (NPI) from engineering builds through production release, ensuring OSAT capability meets electrical/thermal/mechanical requirements for FPGA and SoC products.
• Optimize packaging and test architectures for performance, cost, and reliability: advance packaging, flip-chip BGA, high-pin-count packages, substrate technologies, wafer-level solutions, burn-in/FT coverage.
• Monitor and improve manufacturing performance using data-driven analysis; identify systemic issues and lead root cause / corrective actions.
• Partner with Test Engineering, Package Design, Product Engineering, DFM, and Quality teams on process optimization, failure analysis, and manufacturability improvements.
• Implement and maintain process control systems, SPC methodologies, automation improvements, and lean manufacturing principles at OSAT.
• Support cost reduction initiatives including BOM optimization, process simplification, and cycle time improvements.
• Track supplier performance metrics (yield, DPPM, cost, cycle time, OEE) and provide updates with risk assessments and mitigation plans.
• Lead or support reliability testing and package qualification activities aligned to industry standards (JEDEC, IPC, AEC-Q).
• Maintain strong technical relationship and communication cadence with OSAT partners to ensure transparency, collaboration, and escalation management.

Requirements

• Bachelor’s degree in Electrical Engineering, Materials Science, Mechanical Engineering, or related field
• 10+ years of semiconductor assembly, packaging, or test engineering experience
• Hands-on experience with OSAT manufacturing environments, including wafer finishing, substrate attach, interconnect packaging, test, and burn-in.
• Strong technical understanding of backend manufacturing flows: flip-chip, wire bond, underfill, molding, final test, reliability stress and analysis.
• Proven ability to analyze yield, reliability, and cost data to drive engineering decisions and improvements.
• Demonstrated success working with international suppliers and cross-functional teams.
• Strong statistical analysis, written and verbal communication skills, including technical reporting and supplier engagement.

Tech Stack

• Assembly

Benefits

• Health insurance
• 401(k) matching
• Flexible working hours
• Paid time off
• Remote work options