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Flex · 2 months ago

Sr Manifold Engineer – Thermal & Fluid Systems

USA, MA, Littleton

Full-time

Onsite

Mid, Senior Level

$104K/yr - $143K/yr

3+ years exp

JetCool, a Flex company, is at the forefront of liquid cooling innovation, delivering advanced solutions for AI and high-performance computing. In this role, you will design and optimize fluid architecture for efficient cooling solutions, collaborating with various engineering teams to ensure performance and reliability.

ElectronicsManufacturingProduct Design

No H1B

Responsibilities

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

Qualification

Fluid system designCFD simulationsThermal-fluid modelingCAD toolsFluid dynamicsHeat transferThermodynamicsManufacturing processesStartup experienceASHRAE guidelinesProblem-solving skills

Required

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)

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