NGNamar Gregorio
@namargregorio
Experienced Linux/Unix systems administrator specializing in Hadoop, Cloudera, and infrastructure reliability.
PhilippinesWhat I'm looking for
I am an accomplished Linux and Unix System Administrator with 11+ years of progressive experience managing multi-site installations, diverse distributions, and large-scale Hadoop/Cloudera environments. I have led platform teams, optimized cluster performance, implemented security and governance controls, and automated processes to reduce incidents and improve operational efficiency.
My background includes hands-on administration of HP-UX, AIX, Solaris, Debian/Ubuntu, RHEL/CentOS, Windows Server, and Hadoop ecosystem components (HDFS, YARN, Hive, Impala, Spark, Kafka), plus Talend and enterprise deployments. I take a proactive, detail-oriented approach to capacity planning, incident management, and technical documentation to deliver stable, scalable infrastructure for enterprise clients.
Experience
Work history, roles, and key accomplishments
Team Lead / L3 Linux Administrator
Seven Seven Global Services
Jun 2020 - Present (5 years 8 months)
Lead L3 Linux/Hadoop platform administration for UnionBank, managing Cloudera clusters and optimizing Hadoop ecosystem components to improve performance, scalability, and security across multi-site installations.
Hadoop / Linux Administrator
Teradata Philippines
Oct 2017 - May 2020 (2 years 7 months)
Managed and maintained Hadoop clusters for Globe project, configured NameNode HA, monitored cluster health using Ganglia/Nagios/Cloudera Manager, and implemented backup, recovery, and security measures to ensure reliable operations.
ICS Consultant
Infor PSCC Inc
Jun 2015 - Sep 2017 (2 years 3 months)
Planned and executed Infor product installations, developed installation schedules and configurations, handled security parameters, and trained client IT staff on system administration to ensure successful deployments.
ACProvided L1/L2 Unix operations support across airline and enterprise projects, performed proactive incident analysis to reduce recurring incidents, and managed server OS and infrastructure components.
ACDesigned technical solutions and development environments for the Unilever Windchimes project, improving team productivity through rapid deployment tooling and optimized operational procedures.
ACProvided L2 support for identity management (LDAP) for Morgan Stanley project, analyzed incident trends, and managed server OS and identity infrastructure to maintain service stability.
Unix Systems Engineer
Hewlett-Packard Philippines
Nov 2011 - May 2012 (6 months)
Delivered L2 Unix support, created runbooks and training for L1/L2 teams, reviewed change records, and supported service acceptance and operational readiness activities.
Unix System Administrator
Banco De Oro Universal Bank
Nov 2010 - Oct 2011 (11 months)
Administered Unix systems and network services to support banking operations, ensuring system availability and performing routine maintenance and troubleshooting.
Network & System Engineer
Questech Company Inc.
Feb 2009 - Nov 2010 (1 year 9 months)
Provided network and system engineering support, handling infrastructure setup, administration, and operational troubleshooting to maintain service continuity.
Talend Administrator
Teradata Philippines
Installed and administered Talend components (TAC, JobServer, Runtime, MDM), managed deployments and scheduling, implemented security and performance enhancements, and handled user provisioning and access controls.
Education
Degrees, certifications, and relevant coursework
SUSaint Louis University
Bachelor of Science, Electronics & Communications Engineering
Completed a Bachelor of Science in Electronics & Communications Engineering, graduating in March 2008.
Availability
Location
PhilippinesAuthorized to work in
Job categories
Skills
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