Flex · 3 months ago
Principal/Thermal Mechanical R&D Engineer
USA, MA, Littleton
Full-time
Onsite
Senior Level, Lead/Staff
$138K/yr - $190K/yr
7+ years expJetCool, a Flex company, is at the forefront of liquid cooling innovation, focusing on advanced solutions for AI and high-performance computing. They are seeking a Principal Thermal/Mechanical R&D Engineer to drive innovation in cooling technologies and provide technical leadership in the design and implementation of thermal and mechanical systems.
ElectronicsManufacturingProduct Design
No H1B
Responsibilities
Drive innovation by introducing new ideas and critical thinking to advance cooling technologies for improved performance, manufacturability, and reliability
Lead the conceptual design, analysis, and optimization of complex fluid systems, including pumps, fluids, tubing, and heat exchangers, for next-generation processors
Perform advanced fluid flow simulations, analyses, and validation tests to ensure optimal performance under various operating conditions while collaborating with customer and cross-functional teams to integrate fluid systems into overall product designs
Develop and review engineering specifications, and documentation for fluid system and heat transfer components and assemblies, ensuring compliance with industry standards and regulatory requirements
Oversee prototype fabrication, testing, and validation, diagnosing and resolving technical issues during development phases and provide technical guidance and mentorship to junior engineers
Assist in maintaining a strong best practice culture and driving additional foundational knowledge and IP through research
Identify technical gaps, advocate for R&D initiatives, IP, and lead research projects to maximize product impact and value
Qualification
Required
Master's (Thesis required) degree in Mechanical Engineering or related field
Minimum of 7 years of post-collegiate experience in designing and engineering thermal fluid systems, preferably within the data center cooling, automotive, combustion, aerospace, medical, or nuclear industries
Profound expertise in fluid dynamics, thermodynamics, and heat transfer, with a strong foundation in engineering principles
Strong analytical and problem-solving skills, with the ability to effectively troubleshoot and optimize fluid system performance
Impacts the medium-term (semi-annual/annual) direction and financial or operational success of the function
Approves and/or creates functional processes or technologies
Executes and provides input to functional strategic plans and objectives for site
Assists in developing plans for structuring and implementing major initiatives
Excellent communication skills to convey complex technical concepts to both technical and non-technical audiences
Be a good person and a good team player
Demonstrates skills in teaching/leading and/or mentoring
Models appropriate behavior in support of Flex values
Benefits
Full range of medical, dental, and vision plans
Life Insurance
Short-term and Long-term Disability
Matching 401(k) Contributions
Vacation and Paid Sick Time
Tuition Reimbursement
Company
Flex
Flex designs, manufactures, and supplies electronics products for the industrial sector.
10001+ employees
Funding
Current Stage
Public CompanyTotal Funding
$200MKey Investors
CienaSilver Lake
2023-11-29Post Ipo Equity
2003-03-03Post Ipo Equity· $200M
1994-03-25IPO
Leadership Team
Revathi Advaithi
Chief Executive Officer
Kevin Krumm
Chief Financial Officer
Recent News
2026-01-12
2026-01-05
Company data provided by crunchbase