Realyn Tagle

Experience

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  Hewlett-Packard

  Aug 2009 - Jul 2013

  - Provide Unix System administration, maintenance and customer support for 24x7 critical production environments running on HPUX, AIX, Red Hat Linux, Solaris, Virtual Machine Servers.- Accept transfers/escalations, Monitor/track incident progress, Resolve Incidents, Transfer / Escalate incidents - Works closely with Database, Storage and Backup, Application Support, Network Administrators and other groups in order to provide fast problem resolution and to improve client experience.- Analyze incident trends, Verify known errors and elevate “New” problems- Provide and creates Weekly and Monthly SLA Reports and discussed to Offshore and Onshore Team - Make suggestions and create work instructions to improve infrastructure and processes in order to improve availability and serviceability of the infrastructure- Comply and adhere to the ITIL best practices aligned to ISO/IEC 2000 (ITSM) and 27001 (ISMS) standards.- System’s performance analysis and troubleshooting- File systems Management, User Accounts Management, Printer Queue Management- Follow ITIL standard process for Incident Management, Change management, Problem Management- Execute Change Request including Rebooting, Shutting down of servers, FS extension/creation- Involves in Patching activities- Raising hardware/software calls if required to solve issues- Project Account Single Point of Contact (SPOC Show less • Provided technical support, troubleshooting and diagnosing hardware and software problems for HP Laptops and Desktops• Assisted clients in troubleshooting user problems relating to Operating System issues (Windows XP, Vista and Windows 7),• Performed upgrades, installation of HP bundled software’s and essential notebook troubleshooting. Deployed updates, service packs and hot fixes using Windows Update, Automatic Updates• Performed installations or replacing of internal parts HP notebooks (system board, hard disk, fan and heatsink, lcd, speakers, keyboard, etc)• Provide Technical Support to clients via cell phone and email.• Performed On-Site repair for HP clients.• Submit Technical and Incident Reports to Team leads and Product Specialist Show less

  • Unix System Administrator

    Apr 2011 - Jul 2013

  • Technical Support Engineer

    Aug 2009 - Mar 2011
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  Safeway

  Aug 2013 - Sept 2015

  Unix System Administrator

  Operating System: Red Hat Linux 5/6, AIX 5/6, Solaris 8/9/10/11/Zones, Virtual Machine Servers - - Support backstage infrastructure of development, QA and production environments- Respond to tickets that come into our ticketing system. - Provide solutions to medium to complex issues/problems.- File management, Performance management (including monitoring), tuning and system troubleshooting- Performance management (including monitoring), tuning and troubleshooting- Works closely with the rest of the team and application support teams to troubleshoot and optimize the environment. - Execute changes (ex. Capacity Planning, FS extensions/reboot/shutdown,DNS)- Install or assist with the installation of business applications (Netbackup, Networker, OEM, ESP)- Start/stop/add/remove services- Perform Linux audit and reporting tasks- Create, modify, and remove user accounts- Apply required fix, patches, and upgrades to meet the ongoing customer, business, and technology requirements.- Assist users with use of computing systems. Show less

• 

  UBS

  Oct 2015 - Sept 2016

  Unix System Administrator

  Operating System: Red Hat Linux 5/6, Solaris 8/9/10/Zones, Virtual Machine Servers.- Participate in a team based duty roster to provide 24×7, 2nd level production support and part of change integration team- Monitoring server availability, performance, utilisation, housekeeping, patching and maintenance.- Troubleshoot and report system incidents/problems and abnormalities- Perform system planning and change management tasks, and proactively monitor IT systems and recommend enhancements and upgrades when necessary.- Monitor systems capacity and resource utilization- Administrating Volume manager (LVM, VxVM, VxFS, ZFS)- Installation, removal, updating of packages (yum, rpm, pkgadd, pgkrm)- Upgrades of ILO and BIOS firmware- Apply patches/hotfixes and security updates of Linux and Solaris Machines- Performs in various project implementations such as system rebuild (Solaris 10/11 and RHEL 5/6 Operating System) and migrations.- Experience in automated Kickstart deployments- Communicating outage/degradation of server to management.- Work with Vendors (Oracle, Redhat and HP Support) for Hardware or OS problem resolution Show less

• 

  IHiS (Integrated Health Information Systems)

  Oct 2016 - Sept 2021

  Senior System Engineer

  Oct-2016 – Present Senior Systems Engineer IHIS (Integrated Healthcare Information Systems) | SINGAPOREElasticsearch Engineer: (2 years)• Project point of contact for Elasticsearch • Build and maintain the Elasticsearch Infra and Application• Manage the daily indexes, perform snapshot, upgrades, and patches• Manage the Onboarding of all Infra Servers and Devices• Create Visualization and Dashboard for customized for Infra Towers• Create customized reporting templates for Infra Towers• Coordinate new enhancement and automation with Infra Teams• Created SOP Documentations• Created Ansible playbooks to automate the deployment of elk agents to linux servers • Perform analysis related to network/firewall troubleshooting using tools like tcpdumpUnix Administration Support: (1 year)• Plan and Build the Red Hat Virtualization, Satellite, Capsules, CloudForm, and Ansible AWX• Installs, configures and maintains UNIX operating systems• OS Provisioning through Ansible Playbook• Configure the DNS, NTP, NFS, LVM requirements• Create and attach new Datastores• Maintain the Unix server list • Create and Maintain SOP Documents for the team• Tuning system performance• Perform OS security hardening for audit requirements.• Apply OS Latest Patches• Run and Fix the Vulnerabilities found in Nexpose Reports• Respectively delegate tickets within the team• Create and Maintain Ansible Playbooks Application Support: (2 Year)• Project Point of Contact of Cloverleaf and Dynatrace Applications • Planning, integration, and delivery of a large number of IT Infrastructure projects to internal users.• Involve in the project planning and implementation of the Dynatrace Application• Manage and Provide L2 support for the Cloverleaf Application• Created shell script to automate the checking the status of the application• Participate OS patching maintenance support Show less

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  Apple

  Sept 2021 - now

  System Engineer