Nexthop AI
Optical Test Engineer
Santa Clara, California · On-site · Full-time · Posted Jun 11, 2025
- Experience
- 5+ years of experience testing optical modules or electrical/optical systems.
- Education
- B.S. or M.S. in Electrical Engineering, Optical Engineering, Physics, or a related field.
About the job
Qualifies, validates, and tests high-speed optical modules for datacenter and AI networking systems, using lab measurements and performance analysis.
What you'll do
- Set up and maintain optical test environments and automate workflows with Python.
- Test and characterize transceivers across temperature, voltage, and traffic conditions.
- Validate system-level performance, troubleshoot issues, and support root-cause analysis.
What they ask for
- B.S. or M.S. in Electrical Engineering, Optical Engineering, Physics, or a related field.
- Hands-on experience testing high-speed optical transmission, fiber links, and test equipment including BERT, oscilloscope, DCA, power meters, OSA, and thermal chambers.
- Strong Python scripting skills for lab automation and programming languages for data collection and analysis.
- Familiarity with CMIS, MDIO, or I²C interfaces; understanding of high-speed protocols such as Ethernet, PCIe, or SerDes.
Nice to have
- Industry experience with 400G/800G/1.6T pluggable modules (QSFP-DD, OSFP).
- Knowledge of IEEE 802.3 Ethernet, MSA or OIF standards, or environmental and reliability testing.
Tools
Python, BERT, oscilloscope, DCA, power meters, OSA, thermal chambers, CMIS
AI focus
Tests optical modules and networking systems supporting large-scale AI deployments and AI networking environments.
Model-written summary · the original posting is authoritative