IT since 2012. SysAdmin → DevOps (2021). Design and run production infrastructure for fintech: 200+ microservices (Kotlin/Go/Node/Python/React/Next.js), 6 k8s clusters (2 dev/2 stage/2 prod).
Core: AWS (EKS), Kubernetes, IaC. DevSecOps: Cosign (container signing), CrowdSec (custom Go bouncer with VPC ACL blocking), ModSecurity, vulnerability gates in CI/CD (Harbor/Trivy → SonarQube). Write Go tools when needed.