Flex Ltd.

Manifold Engineer- Thermal & Fluid Systems

USA, MA, Littleton

Sponsorship not specifiedDetected 29 days ago

AccessibilitySolidWorksCreoANSYSCFDMechanical DesignCOMSOL

About the role

As a Manifold Engineer you will be responsible for designing and optimizing the fluid architecture that enables efficient and reliable cooling across our product portfolio.

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.
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.
You'll work closely with thermal, mechanical, and manufacturing teams to develop manifolds that meet performance, scalability, and manufacturability requirements.
Design and develop fluid distribution manifolds for liquid cooling systems used in processors, servers, racks, and datacenter deployments.
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.
Design, Process & Technology Engineering

Bachelor's or Master's 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).
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.

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

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

Job Posting Start Date 06-22-2026 Job Posting End Date 09-25-2026 The base pay range for this position is provided below.
$82,200.00 USD - $113,000.00 USD Annual

Strong understanding of fluid dynamics, heat transfer, and thermodynamics.
The experience we are looking to add to our team:
To support our extraordinary teams who build great products and contribute to our growth, we're looking to add a Manifold engineer located in Littleton, MA.

This listing is sourced directly from Flex Ltd.'s careers page and normalized into a canonical job model.