Senior Application Engineer

About the role

We are hiring High Speed Transceiver Application Engineers to join our team in San Jose. You will work in a fast-paced, cross-functional environment focused on validating high-speed modules such as 400G, 800G, and 1.6T. The role involves electrical validation, automation development, interoperability testing, and system-level debug. You will collaborate closely with hardware, firmware, and manufacturing teams to ensure robust performance across a variety of operating conditions. We welcome candidates with diverse backgrounds and experience levels who are passionate about high-speed systems and eager to contribute to cutting-edge development.

Responsibilities

• Validate stress receiver sensitivity test for module performance against OMA-min requirements and ensure compliance with link budget allocations for 400G/800G/1.6T optical links.
• Build automation scripts for test execution, data collection, and analysis using Python or other programming languages.
• Conduct environmental and reliability stress testing, including thermal cycling, voltage margining, and soak tests.
• Analyze test results, identify root causes, and drive resolution in collaboration with cross-functional teams.
• Support optical module bring-up, firmware validation, and vendor qualification.
• Contribute to DSP bring-up and tuning, including writing low-level code for signal processing and link optimization.

Qualifications

• Master’s or higher degree in Electrical Engineering, Communications Engineering, Physics, or related field.
• Hands-on experience with high-speed transceivers such as QSFP-DD, OSFP, AEC, and related lab instruments (e.g., oscilloscope, BERT and VNA).
• Strong problem-solving skills and ability to work independently or in a team.
• Good communication skills and ability to collaborate across hardware, firmware, and manufacturing teams.
• Passion for high-speed signaling, system-level validation, and continuous learning.
• Solid understanding of SerDes architecture, signal integrity, and high-speed link behavior.
• Familiarity with DSP architecture and ability to write bring-up and tuning code.