Sr Manifold Engineer – Thermal & Fluid Systems

At JetCool a Flex company were 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 whats possible and tackling complex challenges.

A career at JetCool offers the opportunity to make a real impact by helping build smarter more sustainable data were not just advancing technology were redefining cooling standards to create a more sustainable tomorrow.

Job Summary

Join our team at JetCool a Flex company to help shape the future of datacenter cooling with cutting-edge technology. This is a great opportunity to work in a collaborative mission-driven startup this role you will make a real impact on energy efficiency and sustainability in computing infrastructure.

As a Senior Manifold Engineer in Littleton MA you will be responsible for designing and optimizing the fluid architecture that enables efficient and reliable cooling across our product portfolio. Youll work closely with thermal mechanical and manufacturing teams to develop manifolds that meet performance scalability and manufacturability requirements.

What a typical day looks like:

• Design and develop fluid distribution manifolds for liquid cooling systems used in processors servers racks and datacenter deployments.

• Perform CFD simulations and thermal-fluid modeling to optimize flow uniformity pressure drop and thermal performance.

• Select materials and components suitable for high-reliability corrosion-resistant and leak-proof operation.

• Integrate and specify quick disconnects fluid seals and other connectors for modularity serviceability and long-term reliability.

• Collaborate with mechanical and manufacturing engineers to ensure designs are scalable and cost-effective.

• Support prototype builds and testing iterating designs based on performance data and feedback.

• Create and maintain detailed technical documentation including CAD models drawings BOMs and specifications.

• Work with suppliers and contract manufacturers to validate production processes and quality standards.

• Stay informed on emerging technologies in fluid distribution sealing systems and datacenter cooling infrastructure.

The experience we are looking to add to our team:

• Bachelors or Masters degree in Mechanical Engineering Thermal Engineering or a related field.

• 3 years of experience in fluid system design preferably in electronics cooling or industrial thermal systems.

• Proficiency in CAD tools (e.g. SolidWorks Creo) and CFD software (e.g. ANSYS Fluent COMSOL).

• Strong understanding of fluid dynamics heat transfer and thermodynamics.

• Familiarity with quick disconnects fluid seals (e.g. O-rings gaskets compression fittings) cold plates pumps and other liquid cooling components.

• Knowledge of manufacturing processes such as CNC machining injection molding and brazing.

• Excellent problem-solving skills and ability to thrive in a fast-paced iterative development environment.

• Experience designing for high-density server environments or rack-scale cooling systems is a plus.

• Experience in a startup or early-stage product development environment is a plus.

• Knowledge of ASHRAE thermal guidelines datacenter standards and sustainability practices is a plus.

What youll 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

Job Category

Is Sponsorship Available

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. Were happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email and well 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).