Senior Lead - Site Reliability Engineer

Overview

At On, we believe technology should move as fast as a runner. We are building the foundation that allows our engineering organization to scale, innovate, and deliver value without friction. We are looking for a Staff Software Engineer to join the Developer Experience (Dev Ex) team. In this hands-on IC role, you will build the platform that empowers dozens of technology teams to build, ship, and operate services effortlessly.

You will be the architect and primary builder of our "Golden Path," ensuring that speed, safety, and reliability are baked into every developer's workflow.

• Product Thinking:
  You treat internal developers as your customers. You listen to their pain points and iterate on the platform based on real-world feedback.
• Infrastructure as Code:
  You are comfortable with Terraform and Kubernetes (GCP experience is a plus), treating infrastructure with the same rigor as application code.
• Automation Mindset:
  You are passionate about CI/CD (Git Hub Actions) and building developer tooling (CLIs, SDKs, or Portals).
• AI-Augmented Engineering Workflows:
  You leverage the latest agentic coding tools to 10x your productivity, blending deep technical principles with AI-assisted workflows. As a power user of AI, you orchestrate complex builds and bypass boilerplate to deliver robust, scalable code at pace, ensuring our Type Script/Node.js environment remains lean and efficient.
• Architectural API Design:
  Extensive experience in crafting robust API contracts with a focus on Graph
  
  QL Federation; familiarity with the Apollo tech stack is highly regarded.
• Data-Driven:
  You understand DORA metrics and Dev Ex signals, using them to measure the success of the tools you build.