Hosain Choudhry

About

Production infrastructure engineer from Textron Systems who owned IBM Power/AIX 7.2 environments supporting manufacturing-critical automated RF test workloads. Deep hands-on experience with VIOS/HMC, DLPAR performance issues, SAN/vFC failures and failover recovery, plus modern DevOps practices (Azure DevOps CI/CD, Key Vault) and Terraform-based AWS infrastructure with remote state/locking and drift controls.

Experience

Education

Key Strengths

• Owned and operated production AIX 7.2 LPARs on IBM Power with VIOS/HMC in manufacturing-critical test environment
• End-to-end DLPAR troubleshooting (identified CPU cap in shared processor pool; corrected via HMC and restored performance)
• Hands-on HA/failover operations with shared SAN storage; executed quarterly failover tests and maintained runbooks/metrics
• Led recovery from SAN access loss caused by VIOS vFC mapping failure; executed failover and restored service within recovery target; delivered RCA and preventive controls
• Planned and executed AIX hardware refresh migration with discovery, rollback plan, stakeholder coordination, and same-day stabilization
• Strong AIX performance triage using standard tooling across CPU/memory/disk/network with before/after validation
• Built secure, repeatable Azure DevOps CI/CD with Key Vault secrets, approvals, artifact versioning, and rollback; diagnosed and fixed production pipeline failure
• Implemented Terraform IaC on AWS with modular design, remote state + locking, PR-based promotion, and drift detection