Pre-Sales Engineer - Hyperscale Liquid Cooling

Job Posting Start Date 02-09-2026 Job Posting End Date 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 JetCool, a Flex Company, delivers patented direct-to-chip liquid cooling systems purpose-built for AI and high-density compute. With our microconvective cooling technology and full-stack solutions—from SmartPlates to CDUs—we’re redefining how the world’s most demanding processors stay cool, efficient and operational at scale. The Pre-Sales Engineer based in either Littleton, MA, Austin, TX or Milpitas, CA will be accountable for providing technical guidance and information to customers on a pre-sales and post-sales basis to enable delivery of design, fabrication and assembly goals, per customers’ expectations. What a Typical Day Looks Like: Understand customer needs and translate them into technical solutions. Design and present solutions that align with business goals. Support sales teams during product demos, RFPs/RFIs and technical evaluations. Conduct proof-of-concept (PoC) deployments and workshops. Provide post-sales technical guidance and feedback to product teams. Collaborate with facilities and engineering teams to ensure solution feasibility. Use technical knowledge of products and associated development tools to assist customers on complex issues. Assist with the development of complex product roadmaps. Develop and maintain ongoing relationships with product and business development teams. Provide technical expertise during product development by defining customer product needs and translating these needs into new product recommendations and specifications. Review customer requirements, identify and communicate potential issues and provide recommendations that will meet both the capabilities Flex and the specifications of the customer. Identify and communicate existing and potential design issues both internally and externally. Coordinate product integration efforts between component suppliers, Flex and the customer. Develop and present technical seminars for customers and sales personnel to promote employers' manufacturing capabilities, services, available technologies, manufacturing process and quality. Work with customer representatives to coordinate vendor qualification surveys. Provide best in class, complex, technical assistance by answering and closing all customer and program management technical questions related to manufacturing capabilities including design, fabrication and assembly abilities. Define initial project/product scope and prepare project plans to meet customers' expectations. Prepare detailed project plans by documenting customers' requirements and incorporating design and manufacturing capabilities to meet customers’ expectations. Prepare and maintain required documentation. May be required to sit at customer site. The Experience We’re Looking to Add to Our Team: Bachelor’s degree in mechanical engineering 5+ years of industry experience, with at least 2 years in sales engineering, consulting or technical pre-sales roles Experience with solution architecture, integration projects and customer-facing engagements Strong understanding of IT infrastructure, networking, cloud platforms or specialized technologies relevant to the product Ability to architect solutions and assess technical feasibility Familiarity with security, scalability and performance considerations Proficiency in responding to technical aspects of RFPs/RFIs and building solution documentation Experience with liquid cooling systems, data center design, or specialized hardware integration (especially relevant in your context) Ability to train sales teams on technical products and solutions Familiarity with commissioning and maintenance workflow Solid collaborating problem solving skills required Independent self-starter Ability to read the room and respond appropriately 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 Pay Range (Applicable to Massachusetts) $107,400.00 USD - $147,700.00 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 [email protected] 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). Through the collective strength of 140,000 team members across 30 countries and responsible, sustainable operations, Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career with Flex offers the opportunity to make a difference, invest in your growth, and build great products for our customers that improve people’s lives. Together, let’s create the extraordinary! Join our talent community to learn more about job opportunities, company news and events.

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