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System Integration Engineer

Molex
life insurance, parental leave
United States, California, Fremont
Jun 23, 2026

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

We are seeking a highly motivated and experienced System Integration Engineer for a visible, full-time role. This position will focus on developing and optimizing processes for cutting-edge fiber-optic Optical Circuit Switch (OCS) products, supporting next-generation AI Clusters and Data Centers.

The ideal candidate will work within a dynamic, cross-functional team - including product line management, electrical, mechanical, optical, and systems R&D, test and automation, and manufacturing, etc. The candidate will collaborate with colleagues across global sites and engage with internal and external component suppliers.

What You Will Do

  • Lead hands-on system integration, assembly and troubleshooting activities for Optical Circuit Switch (OCS) products and subsystems
  • Develop, document, and optimize assembly, calibration, and test procedures for prototype and production builds
  • Develop detailed work instructions and engineering documentation following ISO quality standards
  • Investigate integration and manufacturing issues, perform root cause analysis, and drive corrective actions
  • Support engineering builds, qualification activities, and new product introduction (NPI) programs
  • Partner closely with manufacturing teams to resolve production issues, improve yields, and implement process enhancements

Who You Are (Basic Qualifications)

  • Bachelor's or master's degree in Optical Engineering, Mechanical Engineering, Electrical Engineering, or a related technical field
  • Minimum 1-2 years of experience in optical system integration, product development, or manufacturing engineering
  • Strong hands-on experience assembling, integrating, and troubleshooting complex optical or electro-optical systems
  • Familiarity with optical test equipment such as optical power meters, optical spectrum analyzers (OSA), oscilloscopes, etc.
  • Experience developing manufacturing processes, work instructions, and engineering documentation
  • Experience working with cross-functional engineering teams and manufacturing organizations
  • Willingness to support manufacturing builds and occasional travel to manufacturing sites

What Will Put You Ahead

  • Bilingual in Mandarin
  • Experience with Optical Circuit Switch (OCS) or other fiber optic products
  • Experience transferring products from R&D to volume manufacturing
  • Experience with programming such as Python for data analysis, process characterization and yield improvement
  • Familiar with opto-mechanical design concepts and principles

For this role, we anticipate paying $140,000 - $150,000 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

As a Koch company, Molex is a leading supplier of connectors and interconnect components, driving innovation in electronics and supporting industries from automotive to health care and consumer to data communications. The thousands of innovators who work for Molex have made us a global electronics leader. Our experienced people, groundbreaking products and leading-edge technologies help us deliver a wider array of solutions to more markets than ever before.

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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