Objective
Experience
CoreProc, Inc. (August 2020-present) Systems Administrator
-Monitor and ensure 24x7 availability of productions servers (such as LEMP servers and MySQL servers) and services (such as OpenVPN, Jenkins, iRedAdmin, and Zabbix)
-Configure live, staging, and development servers and environments
-Proactively escalate concerned departments of possible server and live service problems
-Perform live application first level support
-Coordinate with other departments for troubleshooting and problem escalation
-Do database backups and restores
-Develop and perform disaster recovery processes of data
-Implemented Jenkins in order to improve development processes
-Basic usage of Github
CenturyLink Technology Singapore PTE LTD (June 2019-February 2020) Senior IT Engineer
-Responsible for support and administration of all Unix Application activities. This includes planning, coordination, and implementation of all changes in Unix Application(GNU/Linux, Tomcat, Apache, PHP, etc.) including performance and tuning analysis, capacity planning, systems support and planning, application support, and software upgrades.
-Review, approve and execute change requests to ensure successful change management.
-Troubleshoot systems and network incidents to provide maximum availability and optimal Mean Time To Repair.
-Responsible for ensuring positive customer relationship.
-Ensure Operations Center has all documentation necessary to understand and support their clients.
Key Discovery Consulting, Inc. (July 2017-March 2019) IT/System Administrator
-Select, procure, and setup suitable IT hardware such as routers, switches, rack mounted NAS, DVR, and IP cameras
-Provide technical advice
-Provide systems such as network traffic monitoring tools(ntop-ng and iftop), backup, KVM virtualization, Squid proxy, Nagios, Hesk ticketing system for IT team, etc.
CenturyLink Singapore Pte Ltd (formerly Savvis Singapore Co Pte Ltd), Singapore (December 2012-April 2017) Web Applications Engineer
-Among the technologies I handle here are Apache, PHP, and Tomcat.
Linkwise Technology PTE LTD, Singapore (March 2012-December 2012) Systems Engineer (Computer)
-setup Fedora-based servers/systems known as Facility Monitoring Servers (FMS's) and FAMPs to the company
-researched on OpenVZ should the company opt to run multiple FMS's in one machine
-setup Nagios with XMPP and e-mail notification for the monitoring of company handled servers
-troubleshoot and optimize further the existing servers handled by the company
ProV International (August 2011-February 2012) IT Operations Engineer
-Tier 1 and 2 monitoring and troubleshooting of Glassfish and Terracotta servers
-Monitor and troubleshoot mostly Ubuntu Server setups
-Configure Zabbix
-Logs analysis via Splunk; make regular expressions intensive reports in Splunk
-make Perl shell scripts when useful
-monitor VPN and internet routes, and raise an alarm when a fail-over is needed
-assist on server setups when needed
LWS Media, Inc. System Administrator (February 2010-July 2011)
-setting up, maintaining, and monitoring of filtering (with NCSA authentication) and highly anonymous Squid proxies; created a Perl script to automatically update Squid blacklists
-setup and maintain Openfire for internal instant messaging; I used Jetty for serving Openfire
-setup, optimize, and maintain Apache servers for the development and production of clients' websites and/or Open Source web solutions; setup virtual hosts and SSL certificates in Apache
-setup and maintain Varnish for reverse proxies
-troubleshoot LAMP driven websites
-provide support for LAMP developers (I can program procedural PHP, and I have a working knowledge of MySQL)
-setup and maintain Subversion for the developers
-setup, maintain and optimize MySQL
-does procedural PHP development when asked
-setup, maintain, and secure VSFTPD
-setup, maintain and secure SSH
-setup, maintain and do some development work in ResourceSpace for the Digital Assets Management needs of the company
-setup, maintain and secure minimal CentOS servers(these are secured for the specific tasks they are needed for)
-setup and maitain Nagios for network and services monitoring; setup and maintain SMS notifications from Nagios
-setup and maintain Samba for the share file systems need of the company
-setup and maintain a Bind caching nameserver for the internal Squid filtering proxy
-shell scripting via Perl
-DNS configuration for domains
-firewall configuration in CentOS dedicated and VPS servers (this include port blocking/filterning, Network Address Translation, port forwarding)
-used virtualization for testing
-setting up web based open source applications
-maintaining and setting up VPSes
-assist developers in their needs that are related to servers
-install Symantec Anti-virus for Linux real-time scanning in CentOS servers when ideal (such as Samba shares)
-make shell scripts for an automated way of auditing images in websites for copyrights conformity
-configure and maintain 3rd party Windows servers (mostly IIS related tasks)
-simple setup, and maintenance of Sendmail
-setup private or public networking on servers
-setup, maintain, secure, and use lighttpd when ideal, and when machines are available (for instance, some ResourceSpace installations were served by lighttpd)
-setup software RAID-1 and LVM
LWS Media, Inc. PHP developer (October 2009-February 2010)
-data mining jobs that are regular expressions and xpaths intensive
-create a CLI PHP script for producing CSV reports
Druid Solutions, Inc. Junior PHP programmer (April 2009-October 2009)
-develop a CakePHP based SMS solution for groups and individuals
-deployed CentOS and SMS Server Tools for an SMS gateway on a physical server
-help develop CLI PHP scripts for the SMS services of the company
OJT: September 2008-January 2009: UP Computer Center Computerized Registrar System development team OJT
-Assisted in the development of PHP driven websites for streamlining operations in UP Diliman
1999-present: University Vicars Petron Servicenter, Q.C.
-Developed, maintained, and administered a MS Access database solution for the accounts of the family business
-migrated the MS Access database for accounts to LAMP; I also maintain and administer this currently
2001-present: Markgas Centrum, Cubao, Q.C.
-developed, maintains, and administers of a MS Access database solution for the accounts, inventory, and payroll of the family business.
Education
Trainings
January 2005-May 2005: Bluepoint Institute of Higher Technology: Certificate of Attendance for Total Linux course
2018: Rivan School of Technology, Inc.: Cisco Certified Network Associate with CompTIA A+ Training(Certificate of Completion)
2020: acloud.guru: AWS Certifified Solutions Architect - Associate 2018 Online Trainingi(Record of Completion)
Awards
Special Thanks and Recognition (STAR) Award
Isssued by Maxine Moreau, EVP Global Operations, Centurylink
Apr 2016
I was given this award for fulfilling a task required by our P&G client that required Perl shell scripting. In our team, I'm the only one who has sufficient Perl shell scripting skills for this task. Without the Perl scripts I made, the task will take an enormous amount of time and effort. Also, human error will be more likely without the Perl scripts I made.
Most Valuable Team Player Award for FY16 Q2
Issued by Gery Messer, Managing Director, APAC, Centurylink
Jul 2016
In addition to the STAR award I received for the Perl scripts I made for a P&G client task, I was also given this award for the same task.
Pres. Gloria Macapagal Arroyo Academics and Leadership Awardee
Skills
the use and administration of Linux distributions (especially Slackware Linux, CentOS, Zenwalk, Slax, Ubuntu, Ubuntu Server, and Fedora Core)
setup and administration of CentOS, Squid, Openfire, Apache, Varnish, Apache, MySQL, PHP, Subversion, VSFTPD, OpenSSH, ResourceSpace, Nagios, Samba, Bind, iptables, lighttpd, and Sendmail
basic Perl shell scripting
PHP procedural programming
VPS management and administration
HTML and CSS coding
extensive use of the Command Line Interface
usage of the vi text editor
upgrading, assembly, troubleshooting, and repair of IBM compatible personal computers
setting up software RAID-1 and LVM in Linux
remote administration of servers via SSH
setup Open Source web solutions such as Wordpress, OpenCart, Drupal, Zend Framework
setup CentOS on physical servers
Speaking engagements
Software Freedom Day '08 in the National Computer Center(Robotics using Slackware Linux, stepper motors, and GCC)
Software Freedom Day '09 in the National Computer Center(Serial programming using GCC)
STI Cubao, February 2010 (FOSS and robotics)
QCPU, February 2010 (FOSS, robotics, and the Arduino microcontroller)
Media presence
Convergence program of Net25 where my mobile robot was featured in September 2008
Quoted in the December 2008-January 2009 issue of Computer World Philippines magazine
Certifications
No current certifications.
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