Principal Mechanical Engineer - Optical Solutions

Molex possesses a rich heritage in the optical industry, delivering high-performance, field-proven optical solutions spanning components, modules, and fully integrated line cards. We provide cutting-edge wavelength management and amplifier technologies, supported by deep optical, mechanical, electrical, and software integration capabilities. These strengths enable Molex to serve the evolving needs of high-density, high-bandwidth, and flexible optical networks.The Principal Mechanical Engineer will own mechanical designs of advanced optoelectronic packages (e.g., CPO, ELSFP). This role is responsible for all elements of mechanical design that relate to component design, manufacturability and long-term reliability. The position requires close collaboration with R&D and product design teams, manufacturing, suppliers, and customers to ensure laser components meet stringent optical, mechanical, and Telcordia reliability requirements.What you will do:Lead mechanical design and layout of laser diode packages and various subcomponentsDesign and optimize optical subassemblies (laser, lens system, isolator/grating, fiber coupling) to achieve submicron alignment with high coupling efficiency and long-term stabilityDevelop package architectures integrating thermal electric coolers, submounts, hermetic housings, lids, getters, and fiber attach featuresEnsure compatibility with active alignment processes, including fixture design, alignment tolerancing, and drift control during solder reflow or epoxy curePerform thermal and mechanical design analysis:FEA, thermal modeling and evaluate impact on wavelength shiftDesign for high thermal power density and ensure adequate thermal marginDesign for hermetic sealing approaches meeting leak rate targetsSelect and qualify materials and attachment methodsPartner with suppliers to evaluate component capability, process maturity, and long-term reliability risksDrive design-for-manufacturability (DFM) to enable high-yield, scalable productionWhat You Will Have (Basic requirements):Masters in Mechanical EngineeringAt least 10+ years of industry R&D experience with mechanical design of fiber-coupled optoelectronic packages developed and transferred to manufacturing environmentsDemonstrated experience with optical alignment of components to submicron tolerances, designing for high thermal power densityProven ability to design for submicron stability over lifeMechanical design using Mech software package/s with finite element analysis (FEA)