Ajay Jayswal

About

Banking infrastructure engineer who owns large-scale IBM Power/AIX (AIX 7.x, VIOS, HMC/vHMC) environments with hundreds of LPARs and deep PowerHA/SAN recovery experience. Also builds modern cloud delivery platforms—Azure DevOps/Jenkins CI/CD and Terraform for AWS/Azure (EKS/AKS, networking, security)—bridging legacy mission-critical systems and cloud-native automation.

Experience

Key Strengths

• Owned large-scale IBM Power/AIX estate (dozens of systems, hundreds of LPARs) for mission-critical banking workloads
• End-to-end troubleshooting of complex DLPAR change failure using HMC logs/firmware error data with safe rollback and preventive automation
• Led PowerHA recovery during SAN path failure (resource group takeover, VG/app validation) while keeping downtime within SLAs
• Post-incident hardening: SAN resiliency validation, MPIO tuning, improved alerting, and updated runbooks/drills
• Executed AIX migration/cutover from discovery through stabilization with minute-by-minute runbooks, go/no-go gates, and rollback planning
• Structured and operated secure CI/CD pipelines (Azure DevOps/Jenkins) with Key Vault secrets, approvals, artifact versioning, and automated rollback
• Implemented production Terraform with modular design, remote state/locking, PR-based reviews, and drift detection