yumenotenshi

Architected and operated production Kubernetes clusters, introducing GitOps with ArgoCD and Helm-based charts to standardize deployments and enable safe progressive rollouts. Implemented observability stacks (Prometheus Operator, Grafana, Alertmanager) and tracing (Jaeger) across services to improve incident detection and shorten mean time to diagnose. Built reusable Terraform modules and automated provisioning pipelines (Terragrunt patterns) for cloud and on-prem environments. Deployed and maintained Sentry in Kubernetes to aggregate errors and improve crash handling.

Led implementation of centralized logging, monitoring and tracing for microservices; introduced day-2 operational practices and SRE routines. Automated infrastructure and deployments using Ansible / Terraform / Helm, reducing manual configuration time and drift. Mentored engineers in containerization and deployment practices; improved platform stability and deployment cadence. Worked with AWS (EC2, S3, VPC, IAM, ALB) to host and integrate Kubernetes clusters and CI/CD pipelines, ensuring scalability, secure access management and automated backups.

Managed critical services and virtualized infrastructure; delivered automation for routine operational tasks and reduced incident MTTR through runbooks and monitoring. Implemented CI pipelines and integrated monitoring/alerting with the existing toolchain.

Administration of Linux servers (Centos, Ubuntu), initial server setup, equipment installation, LAN cabling, Apache and Nginx web server administration, DNS setup.