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Olanrewaju Ajilore
Mid-level DevSecOps/Cloud Engineer specializing in AWS platform engineering and Kubernetes
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About
Infrastructure/Platform engineer with deep production ownership of large IBM Power/AIX estates (70 LPARs, dual VIOS, HMC across two data centers), including live DLPAR tuning and PowerHA clustering for Oracle/WebSphere. Also brings modern DevOps/IaC experience—built GitHub Actions pipelines deploying to Kubernetes with OIDC/Vault secrets and implemented Terraform to provision AWS EKS/VPC/IAM/ALB/RDS with drift detection and controlled rollouts.
Experience
Key Strengths
- Owned large-scale IBM Power/AIX footprint (70 LPARs) across two data centers
- End-to-end production outage troubleshooting using AIX/HMC metrics; resolved user timeouts in ~20 minutes via live DLPAR and processor pool rebalancing
- PowerHA cluster operations and quarterly failover testing (node/network/storage simulations) for Oracle and WebSphere workloads
- Network/adapter resilience improvements (SEA/NIC failover standardization, VLAN validation, dual heartbeats, alerting) to reduce false failovers/split-brain risk
- Led AIX migration/cutover with detailed rollback planning and cross-functional coordination under tight downtime windows
- Built secure GitHub Actions CI/CD to Kubernetes with OIDC/Vault secrets, approvals, scanning, Helm deployments, and automated validation/smoke tests
- Implemented Terraform IaC for AWS (VPC, EKS, IAM, ALB, RDS) with modular design, remote state/locking, environment workspaces, and drift detection/remediation
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