New

Laser Test Engineer - Optical Solutions

Molex
life insurance, parental leave
United States, California, Fremont
Mar 06, 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, and integrated line-cards, 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. The Laser Test Engineer will own the measurement and test-automation stack for laser diode or packed LD performance validation: LIV, spectrum, kink behavior, FBG interactions, RIN/noise, and back-reflection sensitivity. Builds fixtures and methods that are repeatable, calibrated, and production-scalable. What You Will Do Develop and maintain test methods for LIV, wavelength/spectrum, kink detection, RIN PSD, far-field divergence, and back-reflection sensitivity across temperature for III-V edge-emitter lasers (EEL), as well as in fiber-coupled packages Design fixtures for FBG interaction tests (lock range, pulling, stability) and for ORL sweeps with calibrated reflectance Scope out and procure life test racks for high-power active devices and manage life test data Create automated test scripts (Python/LabVIEW/Matlab) and data pipelines for raw trace capture and report generation Define measurement uncertainty budgets and calibration plans; ensure traceability of key instruments Support incoming inspection, engineering characterization, and production test debug Partner with reliability and design teams to root-cause noise/kink/instability issues and verify fixes Who You Are (Basic Qualifications) BS/MS in EE/Optics/Physics or related; 3+ years in laser/photonic test engineering (or equivalent). Experience hands-on skills with OSA, wavemeter, power meters, optical elements, photodiodes/TIAs, far field, spectrum analyzers, thermal control and life test equipment Experience with LIV, far-field divergence characterization of laser diodes Experience controlling back-reflection and polarization effects in optical setups (circulators, isolators, APC connectors) Experience translating system-level EDFA requirements into testable module-level specifications Experience scripting/automation ability for data acquisition and analysis. What Will Put You Ahead Experience with laser modules testing Experience with PM fiber handling, PER testing, and polarization stability characterization Familiarity with manufacturing test development and SPC/guard-banding For this role, we anticipate paying $120,000 - $220,000 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).