New

Software Development Engineer - System Simulation & Digital Twin Platforms, Optical Solutions

Molex
life insurance, parental leave
United States, California, Fremont
Apr 15, 2026
Molex is a global leader in the optical industry, renowned for delivering high-performance, field-proven wavelength management solutions. Our expertise spans components, modules, integrated line-cards, and chassis, with a strong focus on innovation, miniaturization, and manufacturing automation. Our advanced optical, mechanical, electrical, and software design capabilities support the evolving needs of high-density, high-bandwidth, and flexible optical networks across telecom, datacom, hyperscale datacenters, artificial intelligence, and supercomputing. We are seeking a Software Development Engineer to join our Optical Line Systems (OLS) Product Development team with a primary focus on large-scale system simulation and digital twin platforms. This role emphasizes building scalable simulation environments that model complex optical network behavior without reliance on physical hardware. AI and LLM-based techniques are used as enablers on top of simulation, rather than being the primary focus. You will develop hardware-independent simulation platforms that support system validation, what-if analysis, and accelerated development cycles-forming the foundation for future AI-assisted and autonomous workflows. This role can be based in the United States and Canada with travel to our Fremont office and global regions. What You Will Do Design and develop large-scale system simulation frameworks and digital twins for optical network systems. Build hardware-independent simulation environments to support software validation, system-level testing, and failure analysis. Model complex, distributed system behaviors and interactions. Enable simulation-driven validation for DVT/SVT and system integration testing. Integrate simulation platforms into CI/CD and automated validation workflows. Collaborate with system, validation, and test teams to translate real-world issues into simulation models. Leverage AI/LLM techniques to assist with simulation orchestration, analysis, and insight generation when applicable. Ensure high code quality, scalability, and maintainability of simulation platforms. Who You Are (Basic Qualifications) Master's or PhD in Computer Science, Software Engineering, Electrical Engineering, or related field with strong system focus At least 5 years of hands-on software development experience in system simulation, modeling, or complex software platforms Experience designing large-scale system simulation frameworks Experience building simulation environments to support software validation, system-level testing, and failure analysis Strong proficiency in Python and software development for data- and compute-intensive systems. Experience building production-quality simulation or modeling software. Solid software engineering fundamentals: testing, version control, documentation, and maintainable design. Must have experience working in manufacturing/production industry What Will Put You Ahead Experience with digital twins, simulation-driven testing, or system modeling tools. Exposure to AI/ML or LLMs applied to analysis or automation (not required to be primary expert). Background in networking, telecom, optical systems, or large-scale infrastructure. Familiarity with CI/CD pipelines, containers, or cloud-native environments. Interest in enabling AI-assisted and autonomous system validation. For this role, we anticipate paying $170,000 - $250,000 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).