Sr Optical System Engineer; Optical Transmission System

Molex possesses a rich heritage in the optical industry. We provide the highest performing and field‑proven optical solutions from components, modules to integrated line‑cards. We provide cutting edge wavelength management and amplifier technologies. Our comprehensive optical, mechanical, electrical and software integration capabilities enable us to serve the needs of high‑density, high‑bandwidth, and flexible optical networks.

Our team in Fremont is hiring an experienced Sr Optical System Engineer to join our optical transmission team. In this role, the engineer will be responsible for developing optical transmission system simulations for the optical DWDM network. The Optical System Engineer will work customers on their technical needs and develop system modelling and simulation of the physical transport layer of various fiber‑optic communication systems.

We develop cutting edge network components and modules, such as high‑speed Optical Transceivers, DWDM/WDM Filters, Optical Amplifiers, Raman Amplifiers, Dynamic Gain Equalizer (DGE) and Wavelength Selective Switch (WSS).

• Conducting system modelling and simulation of physical transport layer of various fiber‑optic communication network to support customers and internal development projects
• Identify best use of Molex cutting edge optical network components and modules, such as high speed Optical Transceivers, DWDM/WDM Filters, Optical Amplifiers, Raman Amplifiers, Dynamic Gain Equalizer (DGE), and Wavelength Selective Switch (WSS).
• Studying various aspects of both existing and potential future optical components including fibers to select right technique(s) suitable for modeling nonlinear propagation of optical signals with advanced modulation formats.
• Evaluating signal‑to‑noise ratio (SNR), optical SNR (OSNR), bit‑error rate (BER), Q‑factor, OSNR penalty and Q‑penalty of the transmission system, and giving mitigation and components improvement recommendation on optical impairments (including filtering, chromatic dispersion, PMD, PDL, crosstalk, nonlinearities, etc.).
• Developing system design rules, link‑level optical line system control algorithm and other innovative ideas for communication systems improvements.
• Developing and maintaining optical transmission system testing bed in full characterization of optical components and modules as well as system performance measurement for optimization direction.
• Performing validation simulation model and maintaining improvement of simulation modelling.
• Supporting technical discussion with customers for best use of Molex solutions and products.
• Assess and review designs and project activities to ensure compliance with customer requirements and development guidelines.
• Troubleshooting customer field network systems issue.
• Providing technical support for field operations, including issue investigation, log analysis, and resolution of optical network problems.

• PH.D in Optical Engineering or Physics, or related technical field, or equivalent practical experience.
• At least 3 years of experience combined from academia and industry in the area of simulating and modeling of system and component for optical communications.
• At least 3 years of hands‑on experience in optical communication systems such as operating and maintaining DWDM optical networks.
• Hands‑on experience with the operation, maintenance, and troubleshooting of: DWDM systems, Coherent optical transmission systems, Optical amplification technologies (EDFA, Raman), Optical protection schemes and Pluggable optics and transponders.
• Hands‑on experience with optical test equipment for troubleshooting and validation, including OTDR (Optical Time‑Domain Reflectometer), OSA (Optical Spectrum Analyzer), BERT (Bit Error Rate Tester), and optical power meters.

For this role, we anticipate paying $150,000 - $200,000 per year. This role is eligible for variable pay, issued as a monetary bonus or in another form.

Equal Opportunity Employer, including disability and protected veteran status. Except where prohibited by state law, some offers of employment are conditioned upon successfully passing a drug test. This employer uses E‑Verify.