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M G Riaz Ahamed

Senior AIX/Unix Infrastructure Engineer specializing in IBM Power and enterprise migrations

American GreetingsBangalore UniversityHilliard, OH15 Years ExperienceSenior Level

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AIX/Solaris and IBM Power specialist who has led real-time performance recoveries for core banking/ERP workloads—diagnosing CPU/IO contention down to FC queue depth and LPAR sizing, restoring latency from 5s to 200ms. Experienced with POWER7/8/9 operations across HMC/VIOS/NPIV and live DLPAR resizing, plus legacy Solaris SPARC to RHEL x86 hybrid re-platform migrations with post-cutover Oracle performance considerations.

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Key Strengths

  • Led high-severity AIX production incident triage and tuning; reduced I/O wait from 40% to 4% and restored app latency from 5s to 200ms
  • Deep AIX performance diagnostics using topas/vmstat/iostat/nmon to isolate CPU vs I/O vs memory constraints
  • Storage/FC tuning expertise (HBA queue depth/num_cmd_elems) and SAN latency interpretation (avgserv thresholds)
  • IBM Power virtualization operations (HMC/VIOS/LPAR/DLPAR) including live CPU/RAM resizing without downtime
  • Hybrid migration planning for legacy Solaris SPARC to RHEL x86, including dependency discovery and endian-architecture considerations
  • HA/provisioning operational knowledge with NIM and PowerHA/CAA command-line tooling

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Experience

AIX Engineer / AdministratorAmerican Greetings · May 2022 – Sep 2025
Systems Engineer ConsultantFiserv · Aug 2021 – Feb 2022contract
AIX Administrator ConsultantEversource Energy · Mar 2021 – Aug 2021contract
AIX Administrator ConsultantLincoln Financial Group · May 2019 – Oct 2020contract
Senior Technology SpecialistBridgestone Americas Inc. · Aug 2015 – Mar 2019
AIX AdministratorJP Morgan Chase · Feb 2012 – May 2015
UNIX (AIX) AdministratorWalt Disney · Mar 2010 – Dec 2011contract

Education

Bangalore Universitybachelor, Electronics Engineering

Skills

UnixLinuxPerformance tuningShell scriptingAutomationDocumentationAIXAIX 5.xAIX 6.xAIX 7.xRed Hat Enterprise Linux (RHEL)Sun SolarisSolaris 9Solaris 10HP-UX

Languages

English

Certifications

Microsoft Certified Systems Engineer (MCSE)

Browse Similar

EngineeringUNIXLinuxHigh AvailabilityPerformance Tuning

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Typically responds within 24 hours

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M G Riaz AhamedSenior AIX/Unix Infrastructure Engineer specializing in IBM Power and enterprise migrations