DSP Engineer

Job Title

DSP Engineer

Role Summary

The DSP Engineer develops and implements measurement algorithms and hardware improvements for ultra-high-speed optical and electrical serial data systems used in AI infrastructure. The role supports product measurement development and standards-aligned work (including IEEE 802.3) on the measurement/engineering team.

Experience Level

Mid-level. No specific years of experience were stated.

Responsibilities

Primary responsibilities include measurement algorithm development, hardware improvement, and standards-aligned engineering.

• Serve as subject matter expert for high-speed serial data measurements, combining DSP and practical hardware design knowledge.
• Develop and refine measurement techniques and algorithms for ultra-high-speed optical and electrical signaling systems.
• Improve TECQ/TDECQ measurement accuracy and related algorithms to increase measurement precision and reliability.
• Support measurement work aligned with IEEE 802.3 standards and Lumilens’ technical priorities.
• Contribute to Functional Receiver measurement activities while maintaining confidentiality for patent-pending details.
• Research, design, and develop tools and instrumentation for ultra-high-speed serial data applications.
• Drive hardware improvements to reduce timebase jitter toward 100 fs from current architectures above ~250 fs.

Requirements

Required and preferred skills for successful performance.

Must-have:

• Expertise in digital signal processing for high-speed serial data measurements.
• Hands-on hardware design experience for high-speed measurement systems, optical transceivers, or related photonics/electrical test platforms.
• Experience with advanced measurement algorithms, signal integrity, jitter analysis, and high-bandwidth instrumentation.
• Familiarity with IEEE 802.3 measurement methodologies and optical communication standards.
• Ability to translate complex measurement challenges into practical algorithms, tools, and hardware improvements.
• Strong communication skills and ability to work across engineering, research, and product teams.

Nice-to-have:

• Experience with TECQ/TDECQ measurements, equalization, waveform processing, and receiver modeling.
• Background in optical communications, high-speed SerDes, photonics, or AI infrastructure interconnect technologies.
• Experience developing measurement automation tools, test platforms, or custom instrumentation workflows.

Education Requirements

Preferred: advanced degree (e.g., MS/PhD) in Electrical Engineering, Photonics, Applied Physics, or a related technical discipline. The posting does not state a mandatory degree requirement.

About the Company

Company: Lumilens

Headquarters: San Jose, CA, USA

Lumilens develops integrated photonics and optical interconnect solutions for high-speed data communication and chip-to-chip interfaces, focusing on optical front-end hardware and co-packaged optics for advanced semiconductor systems.