Principal Optical Network System Engineer

Microsoft

Confirmed live yesterday High trust
Hybrid

Quick summary

Work type
Hybrid
Location
—
Salary
$142,800–$274,800 / yr
Posted
3 days ago
Freshness
Confirmed live yesterday
Closes
Apr 3, 2027

Market check

Salary context

Above market

How this pay compares to similar roles

Similar $181k
This role $209k
$113k most similar roles pay here $292k

This role pays more than 74% of similar roles. Most pay $148,950–$214,000 — the shaded band above. At the midpoint, this role pays about $209k versus about $181k for comparable roles.

Based on 240 similar postings.

Employer

About Microsoft

Microsoft Corporation is a global technology leader producing software, hardware, and cloud services including Windows, Office 365, Azure cloud platform, Xbox gaming, and Surface devices. Industry: Software & Cloud Computing

Microsoft currently has 599 open roles on FindRole.

Listed pay typically runs $119,800–$234,700 across 564 roles with salary data.

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At a glance

TL;DR · Principal Optical Network System Engineer

JOB TITLE: Principal Optical Network System Engineer The Platform Systems Engineering team is seeking a Principal Optical Network System Engineer to lead the architecture, engineering, productization, and deployment of optical interconnect solutions and rack-scale fiber management for next-generation AI and cloud infrastructure. You will own the product development lifecycle from early concept through manufacturing readiness and large-scale production deployment. Key responsibilities include defining networking architectures for AI training and inference, leading hardware integration for switches, NICs, and PHYs, and executing validation strategies for high-speed SerDes interfaces. You will utilize expertise in fiber optics, silicon photonics, Co-Packaged Optics, and PAM4-based SerDes to solve complex connectivity problems. The role requires deep technical knowledge of optical components, cables, and connectors to build scalable, high-performance AI fabrics across distributed training and inference workloads.

What you'll do

  • Define and drive networking architectures for AI training and inference platforms across scale-up and scale-out deployments.
  • Lead the integration, bring-up, and deployment of network hardware including switches, NICs, PHYs, and high-speed SerDes.
  • Develop and execute validation strategies for AI networking infrastructure to ensure reliability and performance at cluster scale.
  • Analyze and optimize AI fabric performance by evaluating latency, bandwidth utilization, and congestion behavior.
  • Drive the qualification and deployment of next-generation technologies like silicon photonics, CPO, and LPO.
  • Lead root-cause analysis for networking issues and develop telemetry, diagnostics, and automation solutions for fleet monitoring.
  • Manage the product development lifecycle from early concept and technology selection through manufacturing readiness and production.

What we're looking for

  • Master's Degree in Electrical, Computer, or Mechanical Engineering with 7+ years of technical engineering experience, or a Bachelor's with 8+ years.
  • Equivalent experience to the degree and years of experience requirements.
  • 8+ years of experience with fiber optics, including related tools, devices, processes, design, deployment, operations, or manufacturing.
  • 8+ years of experience designing, testing, validating, or troubleshooting optical interconnects, optical components, or end-to-end fiber links.
  • Ability to pass the Microsoft Cloud Background Check.
  • Experience with data center networking and AI infrastructure, including GPU fabrics, InfiniBand, Ethernet, or UALink ecosystems (preferred).
  • Experience with high-speed copper or optical interconnects, CPO, NPO, silicon photonics, or rack-scale fiber management (preferred).
  • Experience with Linux environments, automation frameworks, and developing telemetry or validation tooling (preferred).

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