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Senior Software Engineer - Optical Transceiver

Molex
life insurance, parental leave
United States, California, Fremont
Jun 12, 2026

Your Job

As a Senior Software Engineer, this person will lead application design in Python for test frameworks, optical transceiver system and parametric tests. This Engineer will also create architecture of test software and stations through design, layout, hardware integration, and software validation.

Our Team

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.

What You Will Do

  • Developing software and applications in Python for optical product testing and evaluation.
  • Architecting and developing test software in an NPI environment, with delivery of final solutions to a mass production environment.
  • Design of complex test framework architecture and data manipulation to facilitate easy storage and retrieval of parameter data, including integration of MES and Database systems.
  • Generating robust error handling, logging and reporting systems to assist in accurate diagnostics of test issues, yields or equipment discrepancies.
  • Design and implementation of automated systems to optimize software based on data analysis using methods such as parallel distributed process models.
  • Manage activities for test station validation and Gage Repeatability and Reproducibility (GR&R).
  • Manage processes changes via Change Request Boards (CRB) and Design Engineering Work Orders (EWO).
  • Technical analysis of optical parametric data for process and cycle time improvements.
  • Work within the New Product Introduction (NPI) team and deliver to the Product Development Lifecycle (PDL) process for gate deliverables and data analysis.
  • Support of manufacturing ramps for continuous sustaining and improvements.
  • Managing complex and technical optical test related projects.

Who You Are (Basic Qualifications)

  • Bachelors degree in Computer Science, Information Technology, Software Engineering or related technical field
  • Must have 3 years of experience developing software and application in Python for product testing optical and evaluation
  • Architecting and developing test software in an NPI environment, with delivery of final solutions to a mass production environment.
  • Design of complex test framework architecture and data manipulation to facilitate easy storage and retrieval of parameter data, including integration of MES and Database systems.
  • Software and test process optimization and improvements in a mass production environment
  • Design and implementation of automated systems to optimize software based on data analysis using methods such as parallel distributed process models.
  • Experience performing code reviews/analysis to optimize code development and ensure adherence to test development requirements
  • Full understanding of Gitlab and Gitflow process, implementing CI/CD
  • Experience with Jira/Confluence for tracking and documentation
  • Knowledge of production test environments (GRR, SPC, OCAP, 8D, etc.)

For this role, we anticipate paying $140,000 - $190,000 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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