Open to opportunities

Walter Takang

@waltertakang

Message

I build resilient AIX, Linux, and IBM Power infrastructure for mission-critical enterprise systems.

United States

Message

What I'm looking for

I'm looking to optimize and secure global enterprise infrastructure, using my AIX, Linux, disaster recovery, storage, virtualization, automation, and leadership experience to support mission-critical system continuity.

I've delivered AIX, Linux, and IBM Power infrastructure for organizations including Los Angeles County, Infosys, Neiman Marcus, Home Depot, IBM, and Lockheed Martin. My work spans AIX 7.2/7.3 deployments, NIM-based upgrades, IBM Power migrations, storage migrations, and Linux administration.

I build highly available environments with PowerHA SystemMirror, GLVM, VIOS, LPARs, NPIV, SAN storage, rootvg mirroring, and disaster recovery exercises. I've provisioned more than 2,000 client LPARs, established 12 VIO servers, and created more than 175 Linux systems.

I automate operations with Ansible, Python, shell, Korn, and Perl scripting while strengthening security through patching, FLRT assessments, LDAP, and system hardening. I also lead infrastructure upgrades, capacity planning, change management, monitoring, and cross-functional work with storage, network, and application teams.

Experience

Work history, roles, and key accomplishments

Senior Aix/Linux Engineer/Administrator/Aix SME

LosAngeles County/Dash Technologies

Jun 2025 - Jun 2026 (1 year)

Configured and managed IBM and EMC/DELL storage systems, deployed NIM servers, and developed AIX Golden images. Managed AIX upgrades, VIO servers, and storage migrations, and automated processes using Ansible and Python.

IBM AIX Linux Nim VIO Ansible Python Shell Scripting Storage Commvault Control M

Senior Unix/Aix/Linux Engineer/Administrator/Aix SME

Infosys

Jan 2023 - Mar 2025 (2 years 2 months)

Deployed NIM servers, developed AIX Golden images, and upgraded AIX operating systems. Implemented GLVM for disaster recovery, managed PowerHA clusters, and automated processes using Ansible and Python.

Linux Nim VIO PowerHA Ansible Python Shell Scripting LDAP Satellite

Senior Unix Engineer/Administrator/Aix SME

Rotech/The Judge Group

Nov 2021 - Dec 2022 (1 year 1 month)

Optimized AIX LPAR performance and capacity, implemented GLVM for disaster recovery, and migrated systems to Power9. Automated processes using Ansible and managed storage replication.

LPAR Ansible Shell Scripting Storage Nim

Senior Unix Engineer/Administrator/Aix SME

AAFES/The Judge Group/Dallas Systems Inc

Dec 2021 - Oct 2022 (10 months)

Executed daily Unix/AIX administration, managed storage replication, and implemented GLVM for disaster recovery. Updated HMC firmware and managed PowerHA clusters.

Unix PowerHA Storage Shell Scripting

Aix SME/Engineer/Administrator

Spyglass/Dallas Systems Inc

Aug 2020 - Dec 2021 (1 year 4 months)

Deployed NIM server for AIX 7.2, implemented GLVM for disaster recovery, and provisioned VIOS on Power9. Managed PowerHA clusters and automated processes using Ansible.

Nim VIO PowerHA Ansible Shell Scripting Nagios Foglight

Senior Systems Administrator/Engineer/Aix SME

Neiman Marcus/The Judge Group

Aug 2018 - Jul 2019 (11 months)

Migrated LPARs to Power9, deployed NIM server, and provisioned VIOS. Managed PowerHA clusters, storage replication, and automated processes.

LPAR Nim VIO PowerHA Storage Shell Scripting Nagios

Senior AIX/LINUX Systems Engineer/SME

Hudson Bay Company

Aug 2017 - Aug 2018 (1 year)

Built VIOS and client LPARs, implemented SAN using NPIV, and migrated to Power9. Managed performance and capacity, automated environments using Korn and Perl, and configured PowerHA clusters.

Linux VIO LPAR PowerHA Korn Perl Apache SAMBA NFS DNS FTP SSH

Team Lead Senior Unix/Aix Engineer/Administrator/SME

The Attorney General Office/Dallas Systems Inc/Akyzen

Feb 2016 - Jul 2017 (1 year 5 months)

Designed shared processor pool solutions, managed performance and capacity, and led migration efforts. Automated environments using Korn and Perl, and configured PowerHA clusters.

Linux LPAR VIO PowerHA Korn Perl Ansible Satellite Nagios

Senior Aix-Unix and Linux Administrator/Team Lead

Oshkosh Corporation/Panzer Solution

Apr 2015 - Jan 2016 (9 months)

Designed upgrade solutions, managed PowerHA clusters, and implemented GLVM. Automated environments using Korn and Perl, and managed EMC SAN storage.

Linux PowerHA Korn Perl Ansible Satellite Nagios

Team Lead Senior Linux and Aix-Unix Systems Engineer

HCL America

Aug 2014 - Mar 2015 (7 months)

Installed AIX 7.1, built Red Hat Linux servers, and implemented GLVM. Managed Veritas clusters, patch management, and PowerHA configurations.

Linux Ansible Satellite PowerHA Nagios Apache Tomcat

Senior Aix/Unix and Linux Engineer/Administrator

Magellan Health Services

Dec 2013 - Jul 2014 (7 months)

Managed performance and capacity, Epic Cache Database, and implemented GLVM. Automated environments using Korn and Perl, and managed PowerHA clusters.

Linux Korn Perl PowerHA NFS DNS FTP SSH Nagios

Senior Aix Engineer/Administrator

Home Depot

Jan 2011 - Jul 2013 (2 years 6 months)

Managed performance and capacity, built Linux machines, and configured PowerHA clusters. Automated environments using Korn and Perl, and managed EMC SAN storage.

Linux PowerHA Korn Perl Nagios Nim

Senior Aix Administrator

IBM

Dec 2009 - Dec 2010 (1 year)

Performed performance and capacity management, generated reports, and implemented security measures. Automated processes and presented technical concepts to clients.

Unix Linux Performance Management Capacity Planning Security Automation

Senior AIX Systems Administrator/Capacity Planner

Lockheed Martin

Feb 2009 - Sep 2009 (7 months)

Managed AIX systems, performed capacity planning, and installed Oracle Database 10g with RAC. Automated processes using Perl and managed HACMP clusters.

Linux Nim Perl EMC SAN