Senior Lead - Staff Site Reliability Engineer

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 (DevEx) 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.

Your Mission

• Engineer the Golden Path: Design and implement highly automated CI/CD pipelines (GitHub Actions) and common templating (Typescript/Node) systems that allow a developer to go from "idea" to "production-ready service" in minutes.
• GraphQL Infrastructure: Act as a core contributor to our central Apollo GraphQL API Gateway. You will manage the supergraph composition, runtime stability, and schema governance standards to ensure a consistent contract for all consumers.
• Build the Internal Developer Platform (IDP): Develop our Cloud Abstraction Layer and Developer Portal. This includes building self-service tools, CLIs, and service catalogs that reduce cognitive load for engineers.
• SRE & Observability: Integrate "secure-by-default" practices and robust observability into the platform. You’ll build dashboards (NewRelic) and monitoring patterns that provide teams with deep insights into their service health.
• Technical Excellence & Advocacy: Conduct code reviews, write high-quality documentation, and advocate for DevEx best practices across the organization.
• Friction Reduction: Actively hunt for bottlenecks in the software development lifecycle. Whether it’s a slow build or a complex deployment process, you are responsible for fixing it.

Your story

• 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 (GitHub 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.
• Architectural API Design: Extensive experience in crafting robust API contracts with a focus on GraphQL Federation; familiarity with the Apollo tech stack is highly regarded.
• Data-Driven: You understand DORA metrics and DevEx signals, using them to measure the success of the tools you build.

About the Team

The Developer Experience team serves as the bridge between infrastructure and product. We don’t just measure "uptime"; we measure "time to value." As a Staff Engineer on this team, you will be at the heart of our engineering culture, defining the standard for how software is built and delivered at On.

On is a place that is centered around growth and progress. We offer an environment designed to give people the tools to develop holistically – to stay active, to learn, explore and innovate. Our distinctive approach combines a supportive, team-oriented atmosphere, with access to personal self-care for both physical and mental well-being, so each person is led by purpose.

On is an Equal Opportunity Employer. We are committed to creating a work environment that is fair and inclusive, where all decisions related to recruitment, advancement, and retention are free of discrimination.

We want to set everyone up for success, so here’s the lowdown on how we hire. Our process is a two-way street – bringing you into our culture, while helping us learn how you think. Our full process can last about eight weeks from application to offer, because we care about getting it right. These steps explain how we usually do things.

Before you get started, feel free to consider if you want to work with us. Strange question? Well, we give people a lot of space to navigate their day-to-day and that style isn’t for everyone. We want you to be passionate about what you do and be sure this is the right fit. Because when skills and passion combine – it creates that 'Wow' moment.

Step One: It starts with you... You’ll start by submitting your application to a specific role. We try to keep this step as simple as possible. We do get a lot of applications, but we review them all. If you’re a good fit to the role, a recruiter will follow up with you directly. If you didn’t receive a reply, or were unsuccessful this time around, we encourage you to look for other possible matches at On.