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Muhammad Shoaib
Senior Site Reliability & DevOps Engineer specializing in multi-cloud Kubernetes platforms
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About
IBM Power/AIX infrastructure engineer who has owned large-scale Power9/AIX 7.x estates across primary/DR (VIOS/HMC/vHMC) and has deep hands-on experience with DLPAR, shared processor pool governance, and PowerHA recovery. Also brings modern DevOps/IaC capability—built Azure DevOps/GitHub CI/CD for Terraform + Kubernetes/Helm with strong security controls and resolved a production Terraform state-lock failure by redesigning backend locking and pipeline concurrency.
Experience
Key Strengths
- Owned and operated production IBM Power/AIX at scale across primary and DR (2 frames; ~18–24 AIX LPARs per frame)
- End-to-end outage troubleshooting tied to DLPAR changes; identified VIOS entitlement starvation as root cause and implemented governance/monitoring to prevent recurrence
- Hands-on PowerHA/HACMP operations including quarterly failover testing and incident recovery (manual resource group failover; restored services within minutes)
- Led AIX migration/hardware refresh (Power8 to Power9) with discovery, rollback planning, stakeholder coordination, and 48–72 hour stabilization monitoring
- Built secure, repeatable CI/CD (Azure DevOps/GitHub) with SAST/image scanning, Key Vault secrets, signed images, GitOps, and automated rollbacks
- Diagnosed and fixed Terraform pipeline failure (state lock corruption) by moving to proper remote backend locking and enforcing serialized applies/concurrency controls
- Strong performance triage methodology on AIX using standard tooling across CPU/memory/disk/network
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