Senior Site Reliability Engineer, DevEx

Chainlink Labs is an oracle platform that supports blockchain, decentralized finance, and institutional financial applications. The Senior Site Reliability Engineer, DevEx will build Kubernetes-based infrastructure primitives, control-plane components, and automation for CI/CD platforms, developer environments, and build systems, improving engineering velocity, reliability, and scalability across the organization.

Responsibilities:

• You will design and build the infrastructure primitives that define how our CI/CD platform, build systems, and developer environments scale across the entire engineering org
• You will help build and operate the Kubernetes-based control plane behind our CI/CD platform, including:
  • GitHub Actions self-hosted runner infrastructure (autoscaling, isolation, cost/perf tuning)
  • GitHub Apps and GitHub-as-code (permissions, webhooks, org-wide automation)
  • Secure network access for CI/CD and remote dev environments (Tailscale)
  • GitOps-driven deployment of platform services (Flux)
  • Ephemeral/on-demand developer environments and build systems
• You will develop the core infrastructure components — including Kubernetes Operators and scaling automation — that product teams adopt directly, reducing bespoke per-team CI/CD and environment tooling
• This is not an operational support role. You will be building the systems that define how engineering teams build, test, and deploy, shaping the reliability and scalability of the developer experience org-wide

Requirements:

• 6–9+ years in SRE / Platform / Infrastructure Engineering
• Proven experience scaling Kubernetes in high-throughput production environments
• Deep Kubernetes expertise beyond operating clusters — internals, scheduler behavior, custom resources, and cluster-scale failure diagnosis
• Experience building platform infrastructure, control planes, or Kubernetes Operators (not just consuming them)
• Strong distributed systems and production reliability experience
• Terraform/GitOps ownership — designing and owning automation, not just running playbooks
• GitOps workflows (Flux / ArgoCD) experience
• Hands-on experience with CI/CD platforms at scale: GitHub Actions (self-hosted runners, workflows-as-code), GitHub Apps, and build systems
• AWS/cloud infrastructure production experience
• Track record of building infrastructure primitives rather than primarily performing support/operations — automation-first mindset
• All roles with Chainlink Labs are global and remote-based. Unless otherwise stated, we ask that you try to overlap some working hours with Eastern Standard Time (EST)
• Proficiency in Go (strongly preferred) or another systems language
• Experience with Tailscale or similar zero-trust/overlay networking for CI/CD or remote dev environments
• Experience designing SLO strategies and error-budget usage
• Experience improving diagnosability and observability frameworks (OpenTelemetry or similar)
• Experience building internal developer platforms (IDP) or ephemeral/on-demand dev environments
• Experience building multi-tenant platform infrastructure
• Experience contributing to Kubernetes ecosystem projects
• Experience working in high-ambiguity environments
• Experience with web3 concepts is a plus but not required for this role