• 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