Marcus Okafor

Marcus ran the cloud platform team at Monzo for three years, where he cut the bank's GCP spend by 38% after migrating BigQuery workloads from on-demand to slot reservations and rewriting a Dataflow job that was quietly burning $14k/month on idle workers. Before Monzo he was a site reliability engineer at Zalando in Berlin, working on Kubernetes capacity planning across 1,400+ namespaces. He is GCP Professional Cloud Architect certified, CKA certified, and has nine years of operational experience across GKE, EKS, and a brief, regrettable stint with AKS in 2019. He maintains a small open-source tool called `kube-waste` that flags overprovisioned requests/limits across a cluster. Marcus writes about Kubernetes cost attribution, BigQuery query optimization, and the specific kind of organizational pain that shows up when finance and engineering both think they own the cloud bill. Based in London.