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guifercon User

@guiferconuser

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Unix/Linux System Administrator at SONDA, supporting RHEL, SUSE, Samba, and AIX environments.

Brazil

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At SONDA, I provided L3 support for Linux, Samba, AIX, and Solaris, and deployed servers and managed patches with RedHat Satellite and SuSE Manager. I also supported VMware and HP BladeSystem environments and maintained documentation for daily operations.

At ITCenter, I helped recover servers after a major storage failure, recreating 20+ AIX servers in one week using HMC and NIM. Across my Unix and Linux roles, I’ve worked on high-availability systems, automation, and practical knowledge sharing, including training team members in Linux basics.

Experience

Work history, roles, and key accomplishments

Senior Linux System Administrator

SONDA

Sep 2024 - Feb 2025 (5 months)

L3 Support for Linux (RHEL, SuSE), SAMBA, and AIX/Solaris. Deploy of new servers and patch management using RedHat Satellite and SuSE Manager. Supporting Virtual Linux Servers on VMware and Physical Linux servers on HP BladeSystems. Filesharing implementation, management and troubleshooting using Samba with LDAP authentication, NFS and custom client’s scripts. IAM.
Responsible for validation and u

AIX Engineer

ITCenter

Nov 2022 - Sep 2024 (1 year 10 months)

• Provided L3 Unix/Linux support, managing AIX/Linux servers (LPARs, stand-alone, and VMware virtualized environments) respecting SLA’s.
• Reduced a backlog of 500+ legacy tickets within 3 months.
• Implemented log rotation strategies to reduce filesystem alerts. Planned and executed project to increase OS disks to avoid frequent server freeze due to lack of space. Participated in update tests on

Unix/Linux systems administrator at Kyndryl

Kyndryl

Sep 2021 - Nov 2022 (1 year 2 months)

SME
Managed AIX/Linux environments, including troubleshooting, patching, and upgrades for several clientes from various industries.
Trained and mentored 20+ team members in Linux basics, with most achieving RHEL certification. Worked extensively with PowerHA, VMware, and IBM Cloud. Focal point for Ansible agent implementation and troubleshooting.

Unix System Administrator

IBM

Oct 2019 - Sep 2021 (1 year 11 months)

L3 Unix systems administrator, Subject Matter Specialist for several customers.
Server deployment, patching and security updates.

Unix System Administrator

IBM

May 2013 - Mar 2014 (10 months)

High availability Unix environment on Power system server.
Server deployment, L3 support.

Senior Unix System Administrator

GTCON Tecnologia & Serviços

Jul 2011 - May 2013 (1 year 10 months)

High availability Unix server support.
AIX and Linux redhat.
Troubleshooting, support L2.

Information associate

EDS, an HP company

Jul 2007 - Mar 2010 (2 years 8 months)

Unix analyst level 2.
Support and configuration on Unix-based systems: IBM AIX, Sun Solaris, HP HP-UX and Linux RedHat.
Disk and data management with Veritas Volume manager (allocation of LUNs, HDs)
Cluster administration with Sun and Veritas tools.
Application of patches, script development
Delphi Automotive Systems – CAD based on Unix (Solaris and HP-UX) system.
Supported Catia V4, V5, AutoCAD,

Unix Systems Support Admin

TECMES

Jan 2004 - Jan 2007 (3 years)

• Installed, configured, and supported Unix workstations for Catia V4/V5.
• Managed user access, file-sharing (NFS, SAMBA), and tape backup/restore processes.
• Mentored and trained junior team members.
• On-site and telephone support.
• Reduced the installation Service Orders to half the time by implementing OS cloning techniques, reducing cost of traveling.