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Thermal Design Engineer

Volantis Semiconductor
August 27, 2026
Full-time
Remote friendly (San Francisco, California, United States)
Worldwide
Other Semiconductor Jobs, Level - Mid-Career

Job Title

Thermal Design Engineer

Role Summary

Design and deliver the cooling system for a photonic wafer-scale system, addressing novel thermomechanical and high power-density challenges. Work with cross-functional teams (mechanical, electrical, packaging, and systems) to develop, validate, and iterate thermal solutions.

Experience Level

Mid-level. Specific years of experience not stated.

Responsibilities

Primary responsibilities center on defining and implementing thermal solutions for large-format, high-power photonic systems.

  • Design liquid-cooled thermal systems and cooling architecture for wafer-scale photonic hardware.
  • Analyze thermal bottlenecks in high-power-density assemblies and propose mitigations.
  • Develop thermal models and simulations; validate with test hardware and measurements.
  • Collaborate with mechanical, electrical, and packaging teams to integrate cooling solutions into product designs.
  • Iterate on prototypes and manufacturing approaches to meet reliability and performance targets.

Requirements

Must-have experience and technical capabilities required to perform the role.

  • Experience with liquid-cooled systems.
  • Experience with higher TDP and high power-density systems.
  • Deep understanding of thermal bottlenecks in high power dissipation and high power-density environments.
  • Proven ability to innovate and solve non-incremental thermal and thermomechanical problems.

Nice-to-have:

  • Experience where the TIM (thermal interface material) is the primary performance bottleneck.
  • Familiarity with advanced or emerging TIM materials and multi-TIM systems.
  • Experience with cooling challenges for large-physical-size IC advanced package assemblies.
  • Experience with rack-scale system cooling.

Education Requirements

Not specified.


About the Company

Company: Volantis Semiconductor

Semiconductor hardware startup developing wafer-scale heterogeneous packages that integrate silicon and compound semiconductor dies for high-TDP AI platforms. Focus areas include advanced packaging design and process development, interposer technologies, thermal/mechanical challenges, and system co-design.

Volantis Semiconductor logo

Date Posted: 2026-08-26