Hiring: Sr. Mechanical Development Engineer Company: JETCOOL Technologies Inc. Location: Littleton, MA Job Posted Time: 2026-09-10 13:59:41 Target Skills & Keywords : Assembly, AutoCAD, CAD, Product Management, Program Management, Root Cause Analysis, SolidWorks About the job Experience: •7+ years developing complex mechanical components or assemblies for electro mechanical systems; experience with liquid cooling or fluid systems strongly preferred. Required Skills: •To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Sr. •Mechanical Development engineer located in Littleton, MA. •What a Typical Day Looks Like •Mechanical Design & Development •Own mechanical design for liquid cooling components including cold plates, manifolds, quick-disconnects, tubing assemblies, housings, and chassis interfaces. •Create and manage detailed CAD models, 2D drawings, GD&T, and tolerance stack-ups to ensure robust, manufacturable designs. •Select materials and finishes to address corrosion, galvanic compatibility, cleanliness, pressure containment, and long-term durability in liquid cooling environments. •Drive sealing strategies using O-rings, gaskets, welds, brazes, and adhesives matched to coolant chemistry and operating conditions. Compensation: •Full range of medical, dental, and vision plans Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!