Site Reliability Engineer

ONE

full-time

Posted on: 9/26/2025

Origin: • 🇺🇸 United States

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💰 $140,000 - $180,000 per year

Mid-LevelSenior

AWSCloudDistributed SystemsGoGrafanaJavaJavaScriptKubernetesNode.jsPrometheusPythonTerraformTypeScript

About the role

Ensure stability, scalability, and security of systems powering OnePay's financial products for millions of customers
Design, build, and maintain scalable infrastructure and tooling to improve reliability, performance, and availability across the platform
Contribute to the evolution of observability stack, platform libraries, cloud architecture, and CI/CD pipelines
Develop automation and monitoring systems to detect, prevent, and remediate incidents before they impact customers
Partner closely with product and platform engineering teams to embed reliability best practices in design, development, and deployment
Lead root cause analysis and postmortems, driving long-term improvements in resiliency and fault tolerance

5+ years of experience as a Software Engineer focused on building and running reliable, large-scale, distributed systems in production
5+ years of operational experience in observability tooling and libraries (metrics, logging, tracing); experience using Datadog or similar tools (Prometheus, Grafana)
Proficiency in at least one programming language (Python, Go, Java, or Node.js preferred) for automation and tooling
Proficiency in incident management, going on-call, and writing post-mortem reports
Excellent collaboration skills with the ability to influence and educate product engineering teams on reliability and observability best practices
Hands-on experience with cloud platforms (AWS preferred), container orchestration (Kubernetes), and IAC tools (Terraform, Pulumi)
Drive and proactivity; builder and executor mindset
Familiarity with functional programming concepts and fp-ts/TypeScript is a plus
Authorization to work in the United States (application asks about work authorization and sponsorship)