Littleton, Massachusetts, United States · On-site
$82k–$113k/yr
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 pus…
Skills: Fluid System Design, CFD Simulations, Thermal-Fluid Modeling, CAD, SolidWorks
Littleton, Massachusetts, United States · On-site
$105k–$144k/yr
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 pus…
Skills: Mechanical Design, CAD, GD&T, Liquid Cooling, Thermal Analysis
Austin, Texas, United States · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Equipment Set-up, Process Monitoring, Corrective Maintenance, Technical Assistance, Line Configuration
Mexico City, Ciudad de México, Mexico · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Equipment Set-up, Process Monitoring, Corrective Maintenance, Technical Assistance, Yield Analysis
Libertyville, Illinois, United States · On-site
$123k–$169k/yr
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Injection Molding, Tooling Design, CAD Modeling, Mold Flow Analysis, DFM
Guadalajara, Sonora, Mexico · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Test Process Development, Burn-in Processes, Hardware Troubleshooting, Firmware Configuration, Schematic Interpretation
Chennai, Tamil Nadu, India · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Supply Chain Management, Strategic Planning, Vendor Management, Budgeting, Contract Review
Chennai, Tamil Nadu, India · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Master Data Management, Supplier Scorecarding, Logistics Record Keeping, Import Compliance, Customs Compliance
Dundalk, Leinster, Ireland · Hybrid
Anord Mardix, a Flex company, is a global leader in critical power solutions. With facilities around the globe, Anord Mardix leads in critical power infrastructure, supporting a myriad of industries, from financial insti…
Skills: Project Management, People Management, Financial Reporting, Operational Leadership, Strategic Planning
Chennai, Tamil Nadu, India · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Procurement, Supplier Relationship Management, MRP, Inventory Management, ERP Systems
Reynosa, Tamaulipas, Mexico · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Injection Molding, Scientific Molding Methodology, PFMEA, Control Plan, CQI-23
Chennai, Tamil Nadu, India · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Supply Chain Management, Excess & Obsolescence, Material Management, SQL, ERP BAAN V/LN
Chennai, Tamil Nadu, India · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Apqp, Ppap, Fmea, Lean Manufacturing, Six-Sigma
Guadalajara, Sonora, Mexico · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Production Planning, Scheduling, Material Availability, Capacity Planning, Baan
Guadalajara, Sonora, Mexico · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Saw Profiling, Tool Validation, Profile Evaluation, PCBA Inventory Control, Critical Repair Processes
Columbia, South Carolina, United States · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Product Inspection, Quality Auditing, First Article Inspection, Calibration, Statistical Quality Control
Chennai, Tamil Nadu, India · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Indirect Procurement, Supply Chain Management, Microsoft Excel, Microsoft Word, Microsoft PowerPoint
Columbia, South Carolina, United States · On-site
Job Posting Start Date 06-21-2026 Job Posting End Date 09-30-2026 Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the wo…
Skills: Production Planning, Inventory Management, Master Scheduling, Work Order Processing, Communication
Mexico City, Ciudad de México, Mexico · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Production Management, Personnel Management, Lean Manufacturing, Metalworking, Painting Processes
Chennai, Tamil Nadu, India · On-site
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference …
Skills: Application Development, SQL, .NET, Object Oriented Programming, SOLID Principles
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Design and optimize fluid distribution manifolds for liquid cooling systems in high-performance computing environments. Collaborate with cross-functional teams to ensure performance, scalability, and manufacturability of cooling architectures.
Requires a Bachelor's or Master's degree in Mechanical or Thermal Engineering with 3+ years of experience in fluid system design. Proficiency in CAD and CFD software is essential, along with knowledge of manufacturing processes and liquid cooling components.
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.
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.
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. 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.
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.
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.
Experience designing for high-density server environments or rack-scale cooling systems is a plus.
BO18
Application Deadline:
Applications for this job position will be accepted for at least five days following the job posting start date below and continuing until the end date below or until the position is filled. This posting may close sooner due to application volume.
Job Posting Start Date 06-22-2026 Job Posting End Date 09-25-2026The base pay range for this position is provided below. The final base rate offered will be determined using job-related, non-discriminatory criteria, including but not limited to experience, qualifications, geographic location, education, external market data, and internal equity.
$82,200.00 USD - $113,000.00 USD AnnualIs Sponsorship Available?
NoJetCool 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 [email protected] 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).
Flex (Reg. No. 199002645H) is the global manufacturing partner of choice that helps leading brands design, build, and manage products that improve the world. For more information, visit flex.com. We love to hear your thoughts, comments and ideas so feel free to like, share and comment away. Any question or opinion is good to go as long as it is respectful and falls within the scope of this page. Derogatory comments, spam and unsolicited selling are not welcome here and such posts will be removed.
Offices: 12455 Research Blvd, Austin, Texas 78759, US · 2 Changi South Lane, Singapore, 486123, SG
Flex (Reg. No. 199002645H) is the global manufacturing partner of choice that helps leading brands design, build, and manage products that improve the world. For more information, visit flex.com. We love to hear your thoughts, comments and ideas so feel free to like, share and comment away. Any question or opinion is good to go as long as it is respectful and falls within the scope of this page. Derogatory comments, spam and unsolicited selling are not welcome here and such posts will be removed.
Offices: 12455 Research Blvd, Austin, Texas 78759, US · 2 Changi South Lane, Singapore, 486123, SG
