Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Njideka Nancy Agudiegwu

McKinney,TX

Summary

Skilled Linux system administrator with experience in server deployment, network configuration, installation, patching and upgrading of servers, troubleshooting, automation, and maintenance of operating system. A strong collaborator with excellent communication abilities, ready to contribute to the growth of the company. Rational [Job Title] with [Number] years of experience enhancing operations for organizations through information systems solutions. Proven track record of transforming specific business goals related to growth and efficiency improvements into new system designs. Knowledgeable innovator known for recommending new technologies to enhance existing systems and introduce new systems.

Overview

6
6
years of professional experience
1
1
Certification

Work History

Linux Technical Analyst

HCLTech
01.2023 - Current
  • 24x7 event/alert/incident monitoring support for in-scope infra, Apps and Cloud management using Splunk
  • Patching, securing, back up and system updates of RHEL6,7,8,9 servers using Ansible
  • Installation, configure, update, and troubleshoot services for customers such as OS level concern, Apache webserver, database server, applications server etc
  • Used bash shell scripting to sort, filter, clean, update data, automate and install process for new software or software updates
  • Define, manage, and troubleshoot user, access rights, backup failures, system accessibility problems, poor system performance, network connectivity problems, unanticipated system reboots on red hat servers
  • Using Grafana to capture Alerts and Situation, monitor OS level statistics, log, query and application, log into server to troubleshoot and raise incident tickets
  • Use Nagios to monitor web applications, services including HTTP status, availability, content monitoring and URL issues
  • Assist with planning, tracking, documentation, and status update for salesforce
  • Perform SOP based support and escalate to respective technology teams
  • Network and firewall configuration, building, configure RHEL 7,8 servers from scratch by updating system software, using VPN to issue IP Address, setup hostnames and network, create user account, install OS etc
  • Monitor batch Job (Job Scheduling) Alerts and schedule and run data backup process using bash shell scripting
  • Configure and support various Linux services and daemons (MySQL, SMTP, DNS, HTTPD, SSL, Kerberos etc.) Level 3 troubleshooting and resolving incident tickets at command centre Level
  • Creates user accounts and manages access control based on company policies using LDAP
  • Using Dynatrace to monitor response times, performance experience by our customers in their mobile, desktop browser, payment card and email.

Linux Administrator

Spok, INC
01.2022 - 12.2022
  • Perform troubleshooting of existing user account, security objects and authorization to resolve security conflict by creating sudor rule, supporting users, setting up new account and password resets
  • Security patching, firewall configuration, server configuration and application deployment using Ansible
  • Building and configuring new servers from scratch or using template for production, development or testing team using VPN to issue IP address and hostnames etc
  • Wrote shell scripts for various system tasks such as back-ups, collecting system inventories, sorting logs, installation, and monitoring
  • Manage and maintain a variety of Linux/Unix operating systems including system administration, security patching, OS upgrading and troubleshooting on RHEL7 and 8
  • Maintaining and monitoring hardware, troubleshoot hardware issues and submitting summary reports to management
  • Optimized system and application performance using techniques like shutdown, reboot, start and stop services and tools to identify performance issues and solutions
  • Setup the yum repository in the server, upgraded the repository by appropriate patching and installing software packages and services using yum and rpm as required
  • Creating, managing virtual machines and templates, collaborated with clones and snapshots of virtual machines
  • Involve on installation, configuration management and maintenance of RHEL, Linux, CentOS, and Solaris
  • Deploying containerized applications across the nodes of a cluster
  • System management and monitoring hardwares using Dell Open Manage Enterprise for Dell servers and iLO for configuring, monitoring, and upgrading HPE servers
  • System configuration/hardening using security system, SELinux, permission on Linux servers and restricting access to terminals, disable/lo9,.ng unnecessary services and security servers
  • Using Grafana to monitor and administration of servers for day-to-day problems, user administration, hardware failure, monitoring log files, back up, software upgrading.

Linux Administrator

Data Service Group INC
04.2018 - 12.2021
  • Enterprise backup of data, achieve and restore files and folders using Veritas NetBackup
  • Perform problem diagnosis, troubleshooting and resolution ranging from booting, network, and firewalls
  • Monitor logs in Linux servers, including processes, crash and swap management with password recovery and performance tuning using Grafana and Nagio
  • Maintain documentation for systems, data storage process and procedures
  • Patching of servers on Ansible tower
  • Monitoring cluster servers to reduce downtime and outage by allowing another server to take over in an outage event
  • Monitor memory, disk use, running processes and log file using Nagios
  • Building, cloning, and taking snapshot of virtual machines from VMware Workstation
  • System performance and alert log, disk and CPU utilization using Nagios, AWS cloud watch and other monitoring tools for production application
  • Package management using RPM, YUM, Disk management, partitioning tool like Fdisk
  • Configuration of LVM and managing the volumes
  • Diagnosing, monitoring performance and network related issues using PS, TOP, NETSTAT
  • Responsible for adding, creating users, group and set up home directories and appropriate access restriction to files and directories by using access mode in a production environment
  • Network Configuration issuing IP Address, subnet masks and gateway addresses on routers and hosts
  • Remote administration of manageable routers and switches with Telnet and SSH
  • Built physical and virtual machines and did network configuration.

Education

B.S. in Law -

Enugu State, University of Science and technology, Nigeria
01.2006

Diploma Computer operations -

World University computer center Arizona
01.2002

Skills

  • Platform- RHEL7,8 & CentOs
  • System Hardening: SElinux /ACL
  • Configuration and deployment management tools (Ansible, Docker)
  • Ticketing – ServiceNow, Salesforce
  • Monitoring (Nagios, Splunk, Grafana, SecureWorks, Dynatrace)
  • Authentication: Kerberos, Ldap
  • Programming- Ansible, Bash shell
  • Server management: DNS, Apache web server, DHCP, NFS
  • Patch management
  • Virtualization: VMware, vCenter
  • Hardware: Dell, Hp

Certification

  • RED HAT Certified System Administration (RHCSA), 2002
  • Diploma computer operations, 2002

Timeline

Linux Technical Analyst

HCLTech
01.2023 - Current

Linux Administrator

Spok, INC
01.2022 - 12.2022

Linux Administrator

Data Service Group INC
04.2018 - 12.2021

B.S. in Law -

Enugu State, University of Science and technology, Nigeria

Diploma Computer operations -

World University computer center Arizona

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