Sr. Product Design Engineer

We are seeking individuals who are proactive, humble, eager to learn new skills, and demonstrate strong potential for growth. Our R&D/Product Development Engineering Teams generate original ideas for innovative products and guide their development from concept to mass production.

This position focuses on developing state-of-the-art liquid cooling systems and advanced sealing solutions, taking concepts from design to production. You will play a critical role in advancing thermal and mechanical designs, optimizing manufacturing processes, and ensuring product reliability and scalability. This role is ideal for engineers passionate about thermal systems, mechanical design, and innovative sealing technologies.

Molex creates connections for life by enabling technologies that transform the future and improve lives. With a presence in more than 40 countries, Molex offers a complete range of connectivity products, services and solutions for the data communications, medical, industrial, automotive and consumer electronics industries. Our team is helping the company establish a leading position in these areas while creating or providing mechanical and thermal solutions.

• Design and develop advanced liquid cooling solutions, including cold plates, tubing, and manifold systems for high speed IO solutions.

• Design and develop advanced liquid cooling solutions, including cold plates, tubing, and manifold systems for high speed IO solutions.

• Design of cooling system components, including housings, quick-connect fittings, and structural interfaces, ensuring manufacturability and robustness.
• Develop detailed CAD models and engineering drawings for thermal and mechanical components, adhering to industry standards.
• Conduct structural and thermal stress analyses (e.g., FEA) to ensure the mechanical reliability of designs under thermal expansion, vibration, and pressure conditions.

• Lead product development from initial concept and prototyping to mass production.
• Define product requirements, create design specifications, and establish validation plans for thermal and mechanical systems.
• Collaborate with cross-functional teams (thermal, mechanical, electrical, manufacturing) to ensure a seamless transition from design to production.
• Develop DFX (Design for Manufacturability, Reliability, and Testing) strategies to optimize production efficiency and product quality.
• Identify and mitigate risks throughout the product lifecycle, including design iterations, testing, and production ramp-up.

• Act as a technical lead, coordinating efforts among cross-functional teams, suppliers, and production facilities.
• Provide technical guidance to ensure manufacturability, reliability, and scalability of liquid cooling and mechanical system.

• Stay updated on industry trends in liquid cooling, mechanical design, and sealing technologies, including advanced sealing materials and methods.

• Bachelor’s or Master’s degree in Mechanical Engineering, Thermal Engineering, or a related field.
• 5 + years of experience in thermal and mechanical design.
• Proficiency in CAD software (e.g., NX, Creo, Solid Works).
• Familiarity with End-to-End Development (Concept to Production)
• Experience with manufacturing processes (e.g., CNC machining, stamping, plating, injection molding, LSR molding).
• Experience with developing test requirements for mechanical & thermal designs as well as reviewing thermal and reliability test reports.
• Excellent problem-solving and analytical skills, able to deeply analyze testing failure mode while focusing on manufacturability and quality control.
• Experience performing tolerance stack-up analysis for CAD.
• Experience working with international colleagues and suppliers, which may require meetings in the early morning or evening.

• Hands-on experience with liquid cooling systems: cold plates, CDU , quick-connect fittings, tubing, and manifold assemblies.
• Expertise in sealing technologies, including material selection, sealing design (e.g., O-rings, gaskets), and leakage prevention.
• Strong understanding of fluid dynamics, heat transfer, and material compatibility for mechanical/thermal systems.
• Experience with high-volume manufacturing and DFM/DFT principles for mechanical and thermal systems.
• Understanding of material properties in the liquid cooling field, including…