Linux Administrator System

TIJON YEARBY

Glen Burnie Maryland 443-***-**** *************@*****.***

Summary

OBJECTIVE:

Linux administrator with 5 years managing Linux-based servers. Well-versed in the migration of mission critical applications and software components. Adept at navigating levels of theoretical and in-depth levels of technical conversation, especially when presenting information to both technical and non-technical audiences. System Administrator working on RedHat Linux, CentOS and windows environments. Experience in installing RedHat Linux manually or using kickstart Applying security policies to harden the server based on the company policies. Experience configuration of NFS, DNS, HTTP, SFTP, remote access management and security trouble shooting skills.

Experience in Creation and managing user accounts and security rights. Disk space and process monitoring in RedHat Linux Experience on Webservers such as Apache Server, Tomcat . Installed and configured LAMP stack for the application server. Creating Linux Virtual Machines using VMware Center Experience on Windows server AD and DNS. Installation and Creation of Oracle MySQL and PostgreSQL database. Immense background in systems administration, maintenance and end-user training. Accomplished in designing solutions to achieve software compatibility and streamline system upgrades and installations.

Skills

BASH

Command Line Interface (CLI)

Cloud Networking: Network ACLs

RHEL 6/7/8, Centos 6/7, OEL 6, Windows 2012 R2

Apache, Tomcat, Nagios, Solar winds, Service Now,

JBOSS, JIRA, VPN, bash scripting, Visual Studio

Code

DNS, TCP/IP, DHCP, nslookup, dig

MS-OFFICE

Capable of analytical, technical, and interpersonal conversation

Troubleshooting and Maintenance

Server and System Administration

SQL Server 2000/2005

Performance Analysis

End-User Training

QA Tools

Program Installations

System Upgrades

Technical Support

Software Testing

Virtual Machine Operation

System Updates

VMware and Oracle VM

Data Security

Software Installation

Configuration Management

Patch Management

11/2022 to Current

Glen Burnie, MD

Experience

Systems Administrator

ReactDx

Defined business processes along with risk analysis of corporate IT systems and providing baseline acceptance criteria and deliverables.

Installed, configured and maintained end to end automation using Jenkins for continuous integration system requirements for all builds and deployments.

Automated release and deploy configurations to different environments i.e. QA, UAT and production. Experienced in configuring rest API'S and Web API'S as well as troubleshooting issues. Fair knowledge on other Cloud based services like GCS, Microsoft Azure. 10/2020 to 11/2022

Laurel, MD

09/2018 to 10/2020

Gwynn Oak, MD

Automated deployments on applications such as Server JBoss, Tomcat. Experienced with virtualization technologies like installing, configuring, administering VMware ESX/ESXi. Created VMs (virtual server) and performed maintenance on the virtual servers. Created and managed user accounts, security, disk space and process monitoring on Redhat Linux. Configured file sharing servers like NFS, FTP, SAMBA, SFTP as well as mail servers. (EX: Postfix server, Send mail server)

Experienced with System Administration, which includes implementation, administration, and Support in heterogeneous environments with expertise in Red Hat Linux. Proficient in writing Ansible Scripts for Deployment. Excellent in OS upgrades, patches, and package installation on production servers. Extensively involved in configuring and administering storage solutions using Red Hat Linux Native Multi- pathing.

Coordinated with customers, applications, databases, network and hardware teams to support and troubleshoot issues.

Linux System Administrator

MTS

Installed, configured, tuned, secured, backed up, recovered, and upgraded RHEL 5/6 servers. Built new Linux Physical and Virtual servers using kickstart and PXE boot. Good Knowledge of LVM, which include creating PVs, VGs, LVs and file systems and troubleshooting. Developed large-scale Linux methodologies, kernel configuration, performance monitoring, and tuning. Implemented and administered VMware ESX 4/5 for running the Redhat Linux servers on development and test servers.

Monitored systems using Nagios/CheckMK

Managed packages using RPM and YUM in Redhat Linux. Scheduled jobs by creating crontabs /Cronjobs on Linux servers. Backups of systems and restoration using Net Backup on both Solaris and Linux. Created Disk Volumes, Installed and Configured RAID controllers RAID 0, RAID 1 and RAID 5. Implemented CI/CD flows using Jenkins.

Experienced in AWS using EC2, AWS S3, and AWS VPC and IAM services Automated and configured management frameworks such as Ansible. Strong Knowledge and understanding in the configuration of DNS, DHCP, SMTP, NTP and Apache Web Server on Linux.

Created VMs and installed OVMs. Performed backup and worked on instances issues. Installation of HBA drivers and Upgrading of HBA cards before the move. Installed, configured and maintained Apache/Tomcat Web Server. Experienced on TCP/IP networking

Systems Analyst

Shoe City

Provide server support related to other software.

Supported hardware failures by troubleshooting/diagnosing opening cases with IBM support. Windows Active directory and Group Policy Management. Migrated users and mailboxes to new AD Domain and Exchange Messaging systems Configured LDAP authentication.

Implemented SUDO, SSH and other security tools and security compliance. Involved in installation, configuration and administration of Apache Web server Train technical staff in how to use new software and hardware developed and/or acquired. Worked on Service Now for ticketing and tracking asset records. 05/2023

Laurel, MD

Education and Training

Certification of Completion: Linux+

Modest Technology Solutions

05/2017

Glen Burnie, MD

Arnold, MD

High School Diploma

Glen Burnie High School

Some College (No Degree): Environmental Engineering Anne Arundel Community College

Activities and Honors

I make music professionally using production software and plug-in packages. I also stream video games on twitch using a screen capture application. Researching new tech and updates in the cyber security domain as well as general technological advancements. References

References available upon request.

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