Process Engineer

JETCOOL Technologies Inc.; Littleton (MA); On-site; USD 90,000 - 130,000; Full time

Job summary

JetCool Technologies Inc. in Littleton, MA is seeking a Process Engineer to help develop and improve manufacturing processes for its next generation of cooling technology.

You will work with engineering, design, quality, and supply chain teams, plus external manufacturing partners, to move products from development into production. The role offers hands-on experience across product development, tooling, supplier development, and production ramp-up in a fast-paced startup environment serving AI

Qualifications

• Bachelor's degree in mechanical, manufacturing, industrial, aerospace engineering, or related field.
• 3-5 years of process/manufacturing engineering experience.
• Strong problem-solving and analytical skills.
• Experience with SolidWorks or equivalent 3D CAD software.
• US Citizenship is required.

Responsibilities

• Support development and implementation of manufacturing processes for new/existing cooling products.
• Collaborate with internal engineering and external partners to identify manufacturing requirements.
• Develop, document, and improve assembly, test, and manufacturing processes.
• Assist tooling/fixture development and supplier improvements.

Skills

Problem solving

Independence

Manufacturing engineering

3D CAD

SolidWorks

Education

Bachelor's degree in Mechanical Engineering

Bachelor's degree in Manufacturing Engineering

Tools

SolidWorks

Job description

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.

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.

What a typical day looks like:

• 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

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

• 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 SolidWorks 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, logistics, or production operations.
• Awareness of challenges in operations, logistics, quality assurance, and supply chain management.
• Bachelor's degree in mechanical, manufacturing, industrial, aerospace engineering, or a related discipline.

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 [e-mail] 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).