Arista is seeking a Senior Optical System Test Engineer to bridge the gap between R&D and productization, ensuring that optical components and sub-systems meet the highest standards of performance, reliability, and manufacturability for next-generation high-speed optical transceivers and photonic systems.
Requirements
- Direct experience in testing and characterizing PICs (e.g., SOI, InP, or SiN platforms), optical driver ICs, and Transimpedance Amplifiers (TIAs)
- Strong familiarity with optical communication principles, including NRZ/PAM4 modulation, dispersion, OSNR, and jitter
- Proficiency with lab instrumentation, including Optical Spectrum Analyzer (OSA), BERT, DCA, high-speed oscilloscopes, tunable lasers, power meters, VOA, and network analyzers and probes for high-speed electrical testing
- Experience with scripting and test automation using Python, MATLAB, LabVIEW, or similar
- Understanding of industry standards such as IEEE 802.3, QSFP-DD, OSFP, and CMIS
- Experience with Silicon photonics-based PICs, coherent optical systems, and DSP-based transceivers
- Knowledge of DSP tuning (FIR filters, DFE, CTLE) and eye diagram optimization
Responsibilities
- Develop and execute test plans for validating the performance and functionality of Photonic Integrated Circuits (PICs), high-speed optical drivers, Transimpedance Amplifiers (TIAs), and DSPs
- Characterize optical and electrical performance metrics such as insertion loss, extinction ratio, jitter, gain, bandwidth, and SNR
- Set up and automate optical/electrical test stations using high-speed instrumentation and scripting tools (Python, LabVIEW, MATLAB, etc.)
- Conduct stress, reliability, and environmental testing (temperature cycling, aging, vibration) for optical components and assemblies
- Perform high-speed eye diagram analysis, TDECQ, RIN, and receiver sensitivity testing
- Develop automation frameworks for regression testing and continuous validation in both lab and production environments
- Analyze test results and generate detailed reports to support design reviews and product qualification
Other
- Bachelor’s degree in Optical Engineering, Electrical Engineering, Physics, or a closely related field
- Minimum of 3 years of hands-on experience in optical system or component-level testing
- Strong analytical skills and ability to work independently to troubleshoot and resolve technical issues
- Excellent documentation and communication skills
- US-based employees are also entitled to benefits including medical, dental, vision, wellbeing, tax savings and income protection
