Lead Thermal Engineer

At Jabil (NYSE: JBL), we are proud to be a trusted partner for the world's top brands, offering comprehensive engineering, supply chain, and manufacturing solutions. With 60 years of experience across industries and a vast network of over 100 sites worldwide, Jabil combines global reach with local expertise to deliver both scalable and customized solutions. Our commitment extends beyond business success as we strive to build sustainable processes that minimize environmental impact and foster vibrant and diverse communities around the globe.

Responsibilities: ​

Execute thermal design and simulation for high-speed networking components, focusing on Co-Packaged Optics (CPO) and ASIC-optics integration within high power density environments. ​

Lead the end-to-end development of thermal solutions, including direct liquid cooling (DLC), cold plates, CDU, and heat exchangers ​

Use CFD tools ( FloTherm or Macroflow ) to perform rack and system-level thermal/fluid analysis (flow distribution, pressure drop, and temperature profiling) ​

Design thermal components using 3D CAD (Creo or SolidWorks) to support seamless hardware integration ​

Execute thermal, liquid, and acoustic validation testing; lead root cause analysis (RCA) for flow or thermal issues and implement corrective designs ​

Collaborate with ME/EE/Reliability and global vendors to align thermal architectures with total system design and international standards ​

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• Basic Requirements: ​

Bachelor’s or Master’s Degree in Mechanical/Thermal Engineering and 8 + years total experience in product design (Server, Networking switch ) ​

Proven experience in the thermal management of high-power ASICs and advanced packaging, with specific exposure to CPO or Silicon Photonics ​

3+ years of specific experience in rack-scale thermal design ​

Hands-on experience with heat pipes, vapor chambers, fans, and liquid cooling components ​

Proficiency in CFD simulation and 3D modeling software ​

• •Excellent English communication skills (verbal and written) with strong technical leadership capabilities ​
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Desirable Requirements: ​

Self-motivated and proactive ​

Fluent in English language (verbal and written)

Responsibilities: ​

Define and support thermal architecture for high-speed networking systems incorporating advanced packaging technologies such as Co- Packaged Optics (CPO), including thermal considerations for ASIC-optics integration and high power density environments. ​

Capable to own the rack-level liquid cooling architecture, including CDU, rack manifold, loop flow balancing, and redundancy budgeting. ​

Influence the integration of thermal strategy into the overall system architecture, ensuring alignment with technology roadmaps. ​

Identify and evaluate new technologies , innovations, and outsourced partner relationships for alignment with the technology roadmap. ​

Use CFD tools ( FloTherm , Macroflow) to drive optimized thermal solutions balancing thermal and power requirements. ​

Define rack-level validation strategies, including qualification scope, test coverage, and success criteria, proving correlation between simulation and test data. ​

Lead thermal development activities, providing design guidance and methodologies to less-experienced staff members. ​

Effective communication of complex product architectures and design proposals to executive levels and cross-functional teams. ​

Basic Requirements: ​

Bachelor’s or Master’s Degree in Mechanical/Thermal Engineering and 12+ years total experience in product design (Server, Networking switch ) ​

Proven experience in the thermal management of high-power ASICs and advanced packaging, with specific exposure to CPO or Silicon Photonics ​

5+ years specifically in rack-level or datacenter liquid cooling ​

Deep understanding of rack-level systems: CDU operation, flow balancing, redundancy, and serviceability ​

Advanced proficiency in FloTherm , Macroflow , or equivalent for CFD analysis ​

Expertise in 3D CAD (Creo or SolidWorks) ​

• •Excellent English communication skills (verbal and written) with strong technical leadership capabilities ​
• ​

Desirable Requirements: ​

Self-motivated and proactive ​

Fluent in English language (verbal and written)

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