Thermal Engineer
LumilensJob Title
Thermal Engineer
Role Summary
Support the development and optimization of thermal management solutions for Lumilens optical interconnect products used in data center and AI infrastructure, including pluggable, near-packaged, and co-packaged optics.
Work with senior engineers and system architects to design, analyze, and validate thermal solutions that ensure reliability and performance in high-density optoelectronic systems.
Experience Level
Mid-level. No explicit years of experience specified; role supports senior engineers and is suitable for candidates with practical thermal engineering experience.
Responsibilities
Key responsibilities include:
- Assist thermal design for pluggable, near-packaged, and co-packaged optics used in data center switching, compute, and interconnect equipment.
- Support development of air-cooled and liquid-cooled solutions such as heatsinks, thermal bridges, cold plates, coolant interfaces, and platform-level heat rejection paths.
- Contribute to thermal analysis of interactions among ASICs, DSPs, optical engines, lasers, packages, and mechanical structures in dense deployments.
- Collaborate with system architects and senior engineers to define thermal requirements at rack, chassis, and module levels under air and liquid cooling.
- Apply working knowledge of liquid-cooling technologies including cold plates, manifolded loops, coolant distribution, and thermal interfaces.
- Evaluate tradeoffs between air and liquid cooling for power-dense electronics and optoelectronic assemblies.
- Develop familiarity with thermal challenges unique to near-packaged and co-packaged optics, including proximity to hot ASICs, optical temperature sensitivity, thermal isolation, and serviceability constraints.
Requirements
Must-have and preferred qualifications:
- Must-have: Practical experience in thermal engineering for electronics or optoelectronic systems and familiarity with air and liquid cooling concepts used in data centers.
- Must-have: Ability to perform thermal analysis, evaluate system-level tradeoffs, and collaborate with cross-functional engineering teams.
- Nice-to-have: Experience with pluggable, near-packaged, or co-packaged optics.
- Nice-to-have: Experience with CFD/thermal simulation tools and with testing/validation of thermal solutions.
- Nice-to-have: Experience with rack- and chassis-level thermal design for data center equipment.
Education Requirements
Not specified.
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.
