
My professional career journey
My journey from PHP development and CTO leadership to payment microservices, independent consulting, Kubernetes, GitOps, and DevOps in Finland.
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My journey from PHP development and CTO leadership to payment microservices, independent consulting, Kubernetes, GitOps, and DevOps in Finland.

How I design, build, deploy, and operate Mirasys’s video platform using React, IAM, microservices, Kubernetes, GitOps, CI/CD, and observability.

Map the multi-cluster Kubernetes cluster management repo, cluster roles, GitOps flow, and staging to production workflow.

A practical showcase of harrytang.xyz, a microservices portfolio built with Next.js, Strapi CMS, Remark42, Algolia, and GitOps.

Set up Kubernetes observability with kube-prometheus-stack, Loki, and Alloy after the deprecated loki-stack Helm chart.

Learn how to install cert-manager with Prometheus metrics, then add a Grafana dashboard and Prometheus alert rules for certificates.