Summary
Overview
Work History
Education
Skills
Certification
Languages
Personal Information
Hobbies and Interests
Timeline
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JOHN JACOB

JOHN JACOB

Ottawa,ON

Summary

Highly skilled IT Specialist with over a decade of experience in Unix/Linux system administration, specializing in automation through Ansible and shell scripting. Proven ability to lead system security initiatives, disaster recovery, and software updates across critical customer environments. Certified in Red Hat, OpenShift, and Azure administration, with a strong background in managing high-availability clusters and hardware partitioning on enterprise systems, known for problem-solving, team leadership, and on-call support for mission-critical operations.

Overview

14
14
years of professional experience
1
1
Certification

Work History

Senior Lead, Systems Management/ UNIX-Linux Admin

IBM / Kyndryl
12.2016 - Current
  • Administered Unix/Linux systems, including installation, configuration, and maintenance of operating systems.
  • Automated system administration tasks using Ansible playbooks and Shell scripts, improving operational efficiency.
  • Served as the Linux focal point for a critical customer, providing tailored support and ensuring system reliability.
  • Tested and deployed software updates and patches to maintain up-to-date and secure systems.
  • Implemented system security measures to safeguard against vulnerabilities and threats.
  • Designed and executed backup and disaster recovery solutions, directing recovery operations when necessary.
  • Analyzed software and hardware environments to identify and resolve system issues promptly.
  • Provided on-call support outside regular business hours to handle urgent technical issues and ensure system uptime.

Senior Engineer

HCL Technologies
01.2015 - 01.2016
  • Configured, implemented, and administered servers running HP-UX 11i-V3, ensuring efficient system operations.
  • Installed and configured High Availability Clusters on HP Superdome servers, utilizing HP-UX 11i and MC/Service Guard for enhanced system reliability.
  • Performed installation and configuration of the HP-UX 11i OS to meet project specifications.
  • Provided installation and support for Virtual Partitions (Vpar) and Hardware Partitions (Npar) on HP servers to optimize system resources.
    Managed disks and file systems using Logical Volume Manager (LVM) for effective storage management.
  • Tuned system performance by configuring kernel parameters to ensure optimal operational efficiency.

Senior Executive Officer

Clearing Corporation of India Limited
01.2013 - 01.2015
  • Configured, implemented, and administered servers running HP-UX 11i-V3 at the primary site, ensuring high availability and system stability.
  • Installed and configured High Availability Clusters on HP Superdome with HP-UX 11i and MC/Service Guard for enhanced reliability.
  • Performed installation and configuration of the HP-UX 11i OS to meet operational and project requirements.
  • Provided installation and support for Virtual Partitions (Vpar) and Hardware Partitions (Npar) on HP servers, optimizing hardware resource utilization.
  • Configured and zoned SAN switches for efficient data flow and storage management.
  • Managed disks and file systems using Logical Volume Manager (LVM) for effective disk management.
  • Tuned system performance by configuring kernel parameters to ensure optimal system efficiency and reliability.

HP-UX System Administrator

HP C/O IT Source India Pvt.Ltd
01.2011 - 01.2013
  • Administered HP-UX Itanium and PARISC servers for SBI setup, overseeing OS installation, server hardening, and data restoration from legacy servers to new systems.
  • Configured Root Volume Group mirroring across all UNIX systems to ensure redundancy and fault tolerance.
    Conducted server hardening and security lockdowns following the Bank's security policy and recommendations from Paladion, enhancing overall system security.
  • Implemented quarterly patching activity on UNIX servers for both Data Center (DC) and Disaster Recovery (DR) environments.
  • Performed file system expansion on production servers as required on a weekly or monthly basis to meet customer demands.
  • Managed change and configuration for UNIX servers and SAN infrastructure, ensuring system consistency and data integrity.
  • Administered user/group management via command line for efficient access control.
  • Conducted backup and restoration of databases using Data Protector, ensuring data integrity and recovery as per client requirements.
  • Participated in internal and external audits to ensure compliance with IT standards.
  • Provided remote administration of the Disaster Recovery Site, ensuring continuous system availability.

Education

Bachelor of Engineering - Computer Science and Engineering

Anna University
01.2011

Skills

  • Red Hat Enterprise Linux (RHEL)
  • AIX
  • HP-UX
  • Ansible
  • Openshift
  • AWS
  • Git
  • Bash
  • VMware
  • System Administration Disaster Recovery
  • OS Patches

Certification

  • Red Hat Certified Engineer
  • Red Hat Certified System Administrator
  • Red Hat Certified Specialist in OpenShift Administration
  • Azure Fundamentals AZ-900
  • Azure Administrator Associate
  • Azure Solutions Architect Expert
  • IBM - Technical Specialist Profession Certification
  • HP Certified UX System Administrator
  • IBM Agile Explorer

Languages

English
Hindi
Malayalam

Personal Information

Title: Senior Lead - Systems Administration

Hobbies and Interests

  • Photography
  • Travelling

Timeline

Senior Lead, Systems Management/ UNIX-Linux Admin

IBM / Kyndryl
12.2016 - Current

Senior Engineer

HCL Technologies
01.2015 - 01.2016

Senior Executive Officer

Clearing Corporation of India Limited
01.2013 - 01.2015

HP-UX System Administrator

HP C/O IT Source India Pvt.Ltd
01.2011 - 01.2013

Bachelor of Engineering - Computer Science and Engineering

Anna University

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