Flextronics

Pre-Sales Engineer - Hyperscale

USA, MA, Littleton Full time
Job Posting Start Date 01-13-2026 Job Posting End Date 02-23-2026

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.

Position Overview

The Pre-Sales Engineer 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.

Key Responsibilities:

  • 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

  • Uses technical knowledge of products and associated development tools to assist customers on complex issues.

  • Assists with the development of complex product roadmaps.

  • Develops and maintains ongoing relationships with product and business development teams.

  • Provides technical expertise during product development by defining customer product needs and translating these needs into new product recommendations and specifications.

  • Reviews customer requirements, identifies and communicates potential issues and provides recommendations that will meet both the capabilities Flex and the specifications of the customer.

  • Identifies and communicates existing and potential design issues both internally and externally.

  • Coordinates product integration efforts between component suppliers, Flex, and the customer.

  • Develops and presents technical seminars for customers and sales personnel to promote employers' manufacturing capabilities, services, available technologies, manufacturing process and quality.

  • Works with customer representatives to coordinate vendor qualification surveys.

  • Provides 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.

  • Defines initial project/product scope and prepares project plans to meet customers' expectations.

  • Prepares detailed project plans by documenting customers' requirements and incorporating design and manufacturing capabilities to meet customers’ expectations.

  • Prepares and maintains required documentation.

  • May be required to sit at customer site.

Qualifications:

  • Bachelor's degree in Engineering

  • Solid collaborating problem solving skills required.

  • Independent self-starter

  • Ability to read the room and respond appropriately.

  • 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

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 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).