Principal Platform Engineer

What You'll Do

As a Principal Platform Engineer, you will help set the technical direction for the platform one of our engineering teams builds on: the infrastructure, tooling, and automation that let us run GPU clusters, Kubernetes, and our managed services reliably at scale.

You'll partner closely with software engineers, SRE, Infra Ops, and the other platform engineers across Radiant.

This is a hands-on technical leadership role focused on making the platform reliable, secure, and easy to build on, through architecture, code, and the standards other teams build on.

The teams

• Infra: the platform behind provisioning and cluster management

• Network: the platform behind our fabrics and Managed Networks

• Cloud: the platform behind our Virtual Machines and console

• Observability: the platform behind FlightDeck

• MLOps: the platform behind training and inference

Key Responsibilities

• Set the platform architecture and roadmap for your team, and lead its design and implementation.

• Lead infrastructure-as-code, automation, and deployment at scale.

• Make environments reproducible, secure, and fast to change.

• Own the reliability and operability of the platform, with SRE and Infra Ops.

• Define standards for CI/CD, observability, and configuration across teams.

• Raise the engineering bar through mentoring, design and code review, and technical standards.

Your Profile

• Extensive experience in platform, infrastructure, or SRE engineering at scale.

• A track record of technical leadership at staff or principal level, including setting direction across multiple teams and delivering complex, high-stakes systems.

• Strong hands-on engineering skills in Go, Python, or similar.

• Deep technical expertise across:

• Kubernetes and containers in production, including operators

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