Senior Thermal Engineer- Liquid Cooling

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We’re Hiring: Senior Thermal Engineer

At SA Technologies Inc., we believe in turning career aspirations into reality. As a CMMI Level 5 and Great Place to Work® Certified global IT consulting and services company—and recognized as one of the Best Places for Women—we are committed to building an inclusive, supportive, and high-performance workplace

Job Description

Job Title: Senior Thermal Engineer
Location: - San Jose, CA
Full Time role
Direct Client:

100% Onsite role
 
Position Description
 
Role Description
 
Frore Systems is seeking a Senior Thermal Engineer who has taken complex thermal systems from concept through production and understands what it takes to scale in a startup environment.
 
This is not a simulation-only role.
 
You will own end-to-end thermal architecture for next-generation AI/HPC compute platforms leveraging Frore’s LiquidJet™ and AirJet® technologies — from modeling and prototyping through manufacturing release and customer deployment.
 
This role requires deep system-level thinking, strong Icepak expertise, real production exposure, and comfort operating in a fast-paced, customer-driven startup.

Key Responsibilities:
· Thermal Architecture Leadership : Drive thermal cooling strategies for server and rack designs — including air and liquid cooling — to meet performance, efficiency, and reliability goals using LiquidJet technologies.
· CFD and System Modeling : Lead airflow and thermal simulations using CFD tools at component, server, and rack levels. Optimize custom cold plate, flow paths, heat sinks, ducting designs.
· Thermal Validation and Testing : Guide thermal validation plans, including the use of IR thermography, thermocouples, pressure drop measurements, and fan control tuning.
· Reliability and Margin Analysis : Perform thermal margin analysis and ensure compliance with derating guidelines, component lifetime requirements, and ASHRAE standards.
· Mentorship : Mentor junior engineers, review their designs and analyses, and help scale best practices across the organization.
· Cross-Functional Integration : Collaborate closely with R&D and manufacturing to ensure high quality thermal modules to customers 
Required Qualifications:
· M.S. or Ph.D. in Mechanical Engineering , Thermal Sciences , or related field.
·7+ years of hands-on experience in thermal design of high-power electronics or data center systems.
· Expertise in CFD tools: Ansys Icepak, Fluent , or equivalent. Topology optimization experience/expertise using cutting-edge tools.
· Deep understanding of heat transfer and fluid dynamics , including conduction, convection (forced and natural), and multi-phase cooling.
· Experience with liquid cooling systems : cold plate design, coolant selection, CDU integration, and leak risk mitigation.
· Strong track record of bringing complex server or data center cooling solutions to production, with thermal domain and delivery ownership.
Preferred Qualifications:
· Familiarity with Open Compute Project (OCP) platforms and hyperscale data center designs.
· Understanding of ASHRAE thermal classes A1–A4 and facility airflow best practices.
· Hands-on experience with lab validation , test automation , and scripting (Python, MATLAB, etc.).
· Exposure to AI/HPC workloads and associated high-wattage server designs (e.g., >5 kW per sled).
· Understanding of topology and inverse optimization techniques, ideally for heat transfer problems.
· Experience developing AI-assisted CFD models to iterate and explore vast design space pertaining to coldplate design. 
Soft Skills:
· Strong technical communication and ability to present to customers, executive audiences and cross-functional teams.
· Proven leadership in cross-functional engineering projects.
· Proactive problem-solver who thrives in a fast-paced environment.
Example Projects You Might Lead:
· Architecting thermal systems for AI training clusters using liquid cooling with 100kW+ per rack.
· Development of reduced-order models to optimize coldplate performance specific to customer workloads. 
Location:
· Located in the Bay Area or willing to re-locate.
· In-office presence is essential. Hybrid work is not appropriate for this position.
Open to Travel to Taiwan if required since Fabrication manufacturing unit is based over there

Why SA Technologies Inc.?
  Empowering Work Environment: A Great Place to Work, especially celebrated as one of the Best Places for Women. Excellence and Quality: A CMMI Level 5 Company, ensuring operational and service excellence. Globally Acclaimed: A Microsoft Gold Partner and Google Partner, with over 20 years of global IT consulting and Development solutions delivery.

Embark on a rewarding journey together with us! At SA Technologies Inc., your journey begins with a friendly technical assessment, providing a stage to highlight your unique skills.