Obinna Ezeakachi

I’m a DevOps engineer who turns complex infrastructure and security requirements into reliable automation. I’ve delivered hands-on consulting across enterprise environments—building and managing internal tools and services using RHEL, Ansible Automation Platform, and DevOps principles.

At Red Hat UK Limited, I defined Ansible Automation Platform installation strategy and executed best-practice deployments, then led RHEL OS upgrade, CI/CD, and backup approaches to enable seamless rollouts in GCP. I also authored and deployed Ansible playbooks in AAP, built Python/Bash automation scripts that interfaced with Red Hat tooling (e.g., Leapp), and delivered GitOps-style config-as-code workflows using ArgoCD and Helm on OpenShift clusters.

Previously at London Stock Exchange Group, I enhanced and maintained Ansible playbooks for SwapClear, executed CI/CD workflows via Jenkins to validate releases, and led Terraform/Terragrunt efforts provisioning AWS ETL infrastructure (including migrations to cloud). Earlier, at Cerner, I supported critical healthcare systems with performance tuning, security patching, monitoring, and incident management—strengthening my focus on availability, security, and quality of service. My standout results include spearheading ransomware recovery that saved a $20 million project, PCI-DSS compliance work generating £1 million in one quarter, and large-scale RHEL migration problem-solving enabling upgrades of 16,000 servers with major cost savings.