Process Engineer

At Jet Cool, 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 Jet Cool 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.

Flex intends to spin off its Cloud and Power Infrastructure segment into a new, independent publicly traded company, Axiom, with the spin planned for Q1 2027. If the intended spin occurs, this role will support Axiom, a company focused on critical digital infrastructure and delivering end-to-end power and thermal management solutions for AI data centers and other mission-critical applications.

To support our extraordinary teams who build great products and contribute to our growth, we're looking to add a Process Engineer located in Littleton, MA
.

Reporting to the Sr Director, Operations the Process Engineer will help develop and improve the manufacturing processes behind our next generation of cooling technology. You'll work alongside our engineering, design, quality, and supply chain teams, as well as external manufacturing partners, to help bring innovative products from development into production. This is an opportunity to have a meaningful impact at a fast-moving technology startup.

You'll get hands-on experience across product development, manufacturing processes, supplier development, tooling, and production ramp-up while working on products supporting some of today's fastest-growing industries including aerospace, electric vehicles, and data centers.

• Support the development and implementation of manufacturing processes for new and existing cooling products.
• Work with internal engineering teams and external manufacturing partners to identify manufacturing requirements and design-for-manufacturing opportunities.
• Develop, document, and improve assembly, test, and manufacturing processes.
• Support tooling and fixture development and work with suppliers to implement improvements.
• Balance multiple projects and priorities in a fast-paced startup environment.
• Collaborate with design engineers to identify manufacturing challenges early in the product development process.
• Help evaluate and qualify suppliers based on their capabilities, quality, processes, equipment, and ability to support JETCOOL products

• Bachelor's degree in mechanical, manufacturing, industrial, aerospace engineering, or a related engineering discipline.
• 3-5 years of experience in process engineering, manufacturing engineering, product development, or a related field.
• Strong problem-solving and analytical skills using various engineering principles.
• Ability to work independently while knowing when to ask questions and brings others into a problem.
• Comfortable adapting to changing priorities and requirements in a fast-paced startup culture.
• Experience with Solid Works or similar 3D CAD software.
• U.S. Citizenship is required
• Professional history working with contract manufacturers or external fabrication partners.
• Technical proficiency in production of designs involving precision components
• Experience in production of high reliability and performance network products
• Hands-on knowledge with one or more of the following, leak testing, assembly automation and tooling and fixture development
• Work history with fluid-handling hardware such as fittings, tubing, seals, or gaskets.
• Strong familiarity with manufacturing quality, supply chain,…