Build and operate scalable AWS infrastructure for a microservices platform. Develop reliable CI/CD pipelines, reusable Helm charts and CircleCI orbs, infrastructure-as-code, observability, and local development environments. Partner with engineering teams to improve developer experience, document technical decisions, and lead increasingly complex platform projects. The role also involves operating infrastructure, supporting deployments, and growing expertise in Kubernetes, databases, security, release engineering, and related platform tools.