Senior Principal Engineer

Taipei, Taipei City, Taiwan · Taiwan · 3+ years experience · Hybrid · Posted Oct 9, 2026

At a glance

The Senior Principal Engineer will lead the end-to-end development of next-generation network security appliances. This role encompasses the full hardware product lifecycle, from initial requirements and architecture to prototyping, validation, and manufacturing support.

Own the complete hardware design lifecycle from concept through production and sustaining engineering.
Translate product requirements into hardware architectures and detailed design specifications.
Conduct technology evaluations, design trade-off analyses, and recommend optimal solutions.
Select and qualify key components, technologies, and vendors.
Drive product lifecycle management (PLM) activities, including product introduction, production release, field support, and post-launch analysis.
Design complex multi-layer PCBs for networking and security appliances.
Perform circuit design, schematic capture, signal integrity analysis, and power budget calculations.
Validate designs through prototyping, characterization, functional testing, and root cause analysis.
Provide technical guidance and support to contract manufacturers throughout prototype and production builds.
Partner with CAD engineers on PCB layout and routing optimization.

Bachelor’s or Master’s degree in Electrical Engineering or a related field.
Strong understanding of digital, power, and networking electronics.
Experience with networking hardware design, product integration, and manufacturing processes.
Expertise in CPU/SoC-based designs (Intel, AMD, ARM, MIPS), DDR memory interfaces, and Ethernet PHYs.
Expertise in high-speed interfaces including PCIe, SATA, USB, and SPI.
Knowledge of EMI/EMC, ESD, surge protection, and signal integrity.
Proficiency with Cadence CIS and Allegro design tools.
Extensive hands-on experience using laboratory equipment such as oscilloscopes, logic analyzers, and spectrum analyzers.
Strong data analysis skills, including DVT interpretation and yield analysis.
Excellent analytical, problem-solving, and communication skills.

Experience developing enterprise networking, cybersecurity, firewall, SD-WAN, or security appliance products.
Familiarity with product development in high-volume manufacturing environments.
Demonstrated success delivering complex networking platforms from concept through production release.