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At JetCool, a Flex company, we're at the forefront of liquid cooling innovation, delivering advanced solutions that empower our partners in AI and high-performance computing. United by a shared purpose, our teams are pushing the limits of what's possible and tackling complex challenges.
A career at JetCool offers the opportunity to make a real impact by helping build smarter, more sustainable data centers. Together, we're not just advancing technology - we're redefining cooling standards to create a more sustainable tomorrow.
Job Summary
To support our extraordinary teams who build great products and contribute to our growth, we're looking to add a Product Manager located in Littleton, MA.
Reporting to the VP, Design, Process and Technology Engineering, Jet cool Technologies is seeking a dedicated, experienced Product Manager to lead product architecture definition, specifications, design, build, validation, and initial transition to manufacturing for scale-up. Successful candidates will take input from the commercial team, customers, and engineering leadership to define product requirements for each custom solution. The product manager also serves as the direct manager to their engineering team, creating and improving the product through engineering development, testing, characterization, and first article production before handing off production to the operations team. This role involves interaction with executive leadership (product line direction and commercialization decisions), the commercial team (customer and market input and desired specifications), engineering leadership (direct management and technical guidance), manufacturing (successful product transitions), and customers (engineering customizations).
What a typical day looks like:

• Define product specifications, system architectures, and execution plans for custom solutions leveraging JetCool, Flex, and third-party components.
• Be fluent in mechanical engineering principles for system engineering including pipe flow calculations, thermal engineering calculations, and mechanical drawings.
• Directly manage and mentor the Dell OEM engineering team, ensuring timely and high-quality delivery of new customer solutions and custom integrations.
• Serve as the primary customer-facing representative for technical discussions, capturing requirements and translating them into actionable solutions.
• Collaborate with the Sales team to develop proposals, support customer engagements, and deliver tailored liquid cooled server and rack solutions.
• Apply systems engineering principles to architect solutions combining cooling technologies, server hardware, manifolds, and integration services.
• Set timelines, milestones, and schedules for successful product development, balancing engineering progress with commercial priorities.
• Oversee initial builds, validation, and first-article production before transitioning to operations for scale-up.
• Work closely with vendors to ensure delivery that is on time and meets specifications to deliver compliant, timely integrated solutions to the customer.
• Communicate progress effectively to internal and external stakeholders, including executive leadership.
• Develop initial Bill of Materials and cost estimates to inform strategic business decisions.

The experience we're looking to add to our team:

• Bachelor of Science (B.S. in mechanical or aerospace engineering) and 7+ years of work experience
• 3+ years in product management
• 3+ years of engineering team management experience
• Demonstrated ability with hands-on builds/projects
• Proficiency in SOLIDWORKS CAD and drawing packages
• U.S. Citizenship is required

Preferred Qualifications:

• Master's or Ph.D. in Mechanical Engineering, Electrical Engineering, or similar field.
• 10+ years of experience in mechanical engineering or aerospace engineering
• Experience in product management in servers or data centers
• Industry experience in fluid systems, computing, or electric vehicle applications
• Experience in providing technical leadership in the framework of small engineering teams
• Savvy with electronics systems and/or electronics packaging
• Comfortable in a fast-paced, technology startup

BO18
What you'll receive for the great work you provide:

• 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

Application Deadline:
Applications for this job position will be accepted for at least five days following the job posting start date below and continuing until the end date below or until the position is filled. This posting may close sooner due to application volume.
Job Posting Start Date 06-24-2026 Job Posting End Date 09-25-2026
The base pay range for this position is provided below. The final base rate offered will be determined using job-related, non-discriminatory criteria, including but not limited to experience, qualifications, geographic location, education, external market data, and internal equity.
$126,500.00 USD - $173,900.00 USD Annual
Job Category
Design, Process & Technology Engineering
Is Sponsorship Available?
No
JetCool is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email accessibility@flex.com and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at JetCool, you must complete the application process first).