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Optical Engineer - Optical Solutions

Molex
life insurance, parental leave
United States, California, Fremont
Mar 03, 2026

Molex possesses a rich heritage in the optical industry. We provide the highest performing and field-proven wavelength management solutions from components, modules to integrated line-cards. Continuous innovation in passive component function integration, miniaturization, and manufacturing automation, cutting edge WSS and amplify technology and comprehensive optical, mechanical, electrical and software integration capabilities enable us to serve the needs of high-density, high-bandwidth, and flexible optical networks.

In Fremont, we serve large, global clients in telecom and datacom industries in providing next generation optical modules to support the growing need for data and communications.

Molex offers a comprehensive portfolio of optical amplifiers, including EDFA, Raman, and EDFA-Raman hybrid amplifiers that cover both C and L-bands. These amplifiers are available at various levels of integration, from gain blocks to terminal or in-line amplifier line cards

We are hiring an Optical Engineer to work on the optical amplifier module and ROADM line card product development. We are open in to the level of experience as this could be an opportunity to train and development someone.

This role will be based onsite in our Fremont, CA office.

What You Will Do

  • Responsible for Optical design of EDFA, Raman, integrated optical module and circuit pack, ROADM subsystems for telecom and DCI applications
  • Responsible for leading optical design and design validation, troubleshooting. Working with global multi sites resources for full completion of product development and NPI cycle as well as flawless production launching in offshore manufacturing site
  • Responsible to work with marketing team and PLM on Optical Amplifier, ROADM product RFP/RFQ response, specification negotiation, and customer technical support
  • Responsible for defining optical components specifications to be used in the products.
  • Developing and maintaining optical calibration and testing bed in full characterization of optical components and modules performance measurement.
  • Responsible for troubleshooting customer field issues. Providing technical support for field operations, including issue investigation, log analysis, and resolution of optical network problems.
  • Domestic and international travel is expected

Who You Are (Basic Qualifications)

  • Will consider: Bachelor's Degree in Optical, Photonics, Electrical Engineering or Physics and at least 5 years of optical design experience or PhD in Optical, Photonics, EE or Physics with previous internship experience
  • Knowledge in theory of Erbium Doped Fiber Amplifier (EDFA), Raman, etc. and other optical amplifier technology
  • Knowledge of optical testing engineering, data analysis, process development, quality tools
  • Knowledge of design for manufacturability/reliability
  • Experience in fiber optical module and circuit pack manufacturing process (fiber routing and splicing, optical/mechanical/electrical integration assembly, etc.)

What Will Put You Ahead

  • Advanced degree highly desired
  • Experience in optical amplifier (EDFA, Raman, etc.) design, modelling and testing
  • Experience in optical DWDM transmission system design and modelling


For this role, we anticipate paying $140,000 - $200,000 per year. This role is eligible for variable pay, issued as a monetary bonus or in another form.

At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.

Hiring Philosophy

All Koch companies value diversity of thought, perspectives, aptitudes, experiences, and backgrounds. We are Military Ready and Second Chance employers. Learn more about our hiring philosophy here.

Who We Are

At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.

Our Benefits

Our goal is for each employee, and their families, to live fulfilling and healthy lives. We provide essential resources and support to build and maintain physical, financial, and emotional strength - focusing on overall wellbeing so you can focus on what matters most. Our benefits plan includes - medical, dental, vision, flexible spending and health savings accounts, life insurance, ADD, disability, retirement, paid vacation/time off, educational assistance, and may also include infertility assistance, paid parental leave and adoption assistance. Specific eligibility criteria is set by the applicable Summary Plan Description, policy or guideline and benefits may vary by geographic region. If you have questions on what benefits apply to you, please speak to your recruiter.

Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results.

Equal Opportunities

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. Please click here for additional information. (For Illinois E-Verify information click here, aqui, or tu).

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