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September 18, 2025

Senior Optical Transport Network Engineer

Senior • On-site

$156,000 - $229,000/yr

Sunnyvale, CA

Minimum qualifications:

  • Bachelor's degree in Computer Science, Engineering, a related field, or equivalent practical experience.
  • 6 years of experience with one or more optical technologies such as optical metro, long-haul DWDM systems, or submarine systems.
  • Experience in modelling optical transmission systems and/or optical networks.
  • Experience with planning and designing networks (e.g., multiple sites, multiple products, etc.).

Preferred qualifications:

  • PhD in optical communications.
  • Experience with optical networking devices, optical fibers, optical modules and subsystems.
  • Experience with optical physical-layer analysis and testing.
  • Experience in one or more programming languages such as Matlab, C++, Go, or Python.
  • Experience with numerical modeling of coherent transceivers and optical line systems.
  • Experience in creating documentation, guidelines and technical requirement documents and excellent communication skills.

About the job

Google is proud to boast a network that provides service to millions of Internet users around the world. The Network Engineering team is responsible for operating that network reliably and at scale. As a member of the team, you have a direct impact on design and feature enhancements to keep our systems running smoothly. You also ensure that network operations are safe and efficient by monitoring network performance, coordinating planned maintenance, adjusting hardware components and responding to network connectivity issues. Google's complex network generates a constant stream of challenges which require you to continually be innovative with an evolving set of technologies. Keeping the network reliable ensures that our users stay connected with our suite of applications, products and services.

Google's Optical Networking Technologies (ONT) team is the one-stop shop for Google Global Infrastructure (GGI) optical transport needs. We are a team of engineers that provide mega-scale cloud connectivity by guiding photons across land and sea. Our mission is to deliver solutions that empower our partners to plan, build, and operate a reliable optical network. The ONT team is responsible for all optical technologies used in our global wide area network: including client transceivers, coherent pluggables, embedded coherent engines, metro and long haul DWDM optical line systems and subsea terminal equipment.

In this role, you will evaluate and qualify new technologies and develop tools and processes for introducing and managing these in the network.

The US base salary range for this full-time position is $156,000-$229,000 + bonus + equity + benefits. Our salary ranges are determined by role, level, and location. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training. Your recruiter can share more about the specific salary range for your preferred location during the hiring process.

Please note that the compensation details listed in US role postings reflect the base salary only, and do not include bonus, equity, or benefits. Learn more about benefits at Google.

Responsibilities

  • Define next generation optical line system architectures and digital coherent transceiver technologies.
  • Perform numerical and analytical modeling of line system architectures and coherent transceiver performance to understand design trade-offs.
  • Present technology concepts and proposals to cross functional teams.
  • Work closely with our NPI teams to successfully translate next generation concepts into production deployed hardware.
  • Drive vendor engagement to realize our next generation requirements.