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Benard
bnjeongwo@yahoo.com
614-615-1088
Columbus, OH 43085
Linux Systems Administrator
8 years experience W2
1
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Average rating
73
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Summary

Highly enthusiastic and output-driven Linux Systems Administrator with extensive experience in successfully executing duties that will increase the bottom-line of organizations significantly. Currently seeking a challenging position with a growth-oriented company that will offer him opportunities for advancement and professional development.

Experience
Linux Systems Administrator / Solutions Architect
Information Technology
Jul 2014 - present
Manassas, VA

AWS Certified Solutions Architect (Jun 2020 - Present)

  • Responsible for AWS core services: Compute, Networking, Storage, CDN, Database, Application Services, Deployment, and Management.
  • AWS security features and best practices.
  • Designed and implemented elasticity and scalability.
  • AWS networking support.
  • Cloud infrastructure and platform services - designed and implemented cloud infrastructure services to support rapid application deployment.
  • Compliance - integrated compliance and data regulatory requirements into all solutions.
  • Responsible for large-scale distributed systems architecture, eventual consistency, relational and non-relational databases.
  • Responsible for loose coupling and stateless systems, Content Delivery Networks, and System performance tuning.
  • Managed networking concepts including routing tables, access control lists, firewalls, NAT, HTTP, DNS, TCP/IP, OSI model.
  • Managed information and application security concepts including public-key encryption, remote access, access credentials, and certificate-based authentication.

Linux Systems Administrator (May 2016 - Jun 2020)

  • Administered RHEL and CentOS 6/7 including installation, testing, upgrade and loading patches, troubleshooting both physical and virtual server issues.
  • Created and cloned Linux Virtual Machines and templates using VMware Virtual Client 6.4.
  • Administered user accounts enforcing enhanced security passwords.
  • Installed Red Hat Linux using Kickstart and applied security polices for hardening the server based on company policies.
  • Automated tasks using a Cron job.
  • Created disk partition, volume groups, and Logical Volume using Logical Volume.
  • Managed RPM and YUM package installations.
  • Created new file systems, monitored disk usage, checked and administered a disk-based file system.
  • Installed and configured Apache. Supporting them on Linux production servers.
  • Kernel compilation and kernel up-gradation on Linux servers.
  • Made sure all servers were synchronized with the NTP server.
  • Provided LDAP client setup and administration.
  • Performed Bash scripting for tasks automation.
  • Troubleshoot Linux network, security-related issues, filter packets using tools such as iptables, firewall, and TCP wrappers.
  • Created and managed Users / Group accounts and setup a user's work environment.
  • Monitored the File System, CPU load for better system performance parameters using iostat, vmstat, and top command.
  • Monitored system performance, adding, removing, administering hosts, users, disks.
  • Performed the configuration and administration HTTP Server.
  • Worked closely with developers making sure all necessary applications were installed and running properly.
  • Executed technical solutions to department standards.
  • Performance monitoring using Nagios.
  • Identified opportunities to keep current on emerging technologies.
  • Worked in collaboration with other technical teams to achieve rock-solid goals.

Junior Systems Administrator (Jun 2014 – May 2016)

  • Installed, configured, and sustained ongoing usability of desktop/laptop computers, peripheral equipment, and software within established standards and guidelines.
  • Worked with vendor support contacts to resolve technical problems with desktop computing equipment and software.
  • Recommended and performed upgrades on systems to ensure longevity.
  • Assessed functional needs to determine specifications and coordinated with procurement staff for the purchase of hardware and software.
  • Assisted in the organization and inventory of all desktop hardware and software resources.
  • Collaborated with the helpdesk and tier 2 personnel as appropriate to determine and resolve problems in a timely manner.
  • Supported users in the use of computer equipment by providing necessary training and advice.
  • Took ownership of user problems and proactively dealt with user issues.
  • Supported the Remedy ticketing system.
  • Responded to phone calls, email, and in-person requests for technical support.
Apache CentOS Firewall Kickstart LDAP Linux Network Security OpenShift RHEL System Administration System Monitoring VMWare BaSH Nagios Scripting YUM RPM Problem Solving Performance Monitoring NTP Cron AWS Cloud Infrastructure Database Upgrades DNS NAT Performance Tuning Solutions Architecture System Architecture TCP/IP
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1 recommendation
Linux Systems Administrator
Information Technology
May 2016 - Jun 2020
  • Responsible for the administration of RHEL and CentOS 6/7, which includes the installation testing, upgrading and loading of patches, and troubleshooting both physical and virtual server issues
  • Create and clone Linux virtual machines and templates using VMware Virtual Client 6.4
  • Administer user accounts and enforce enhanced security passwords
  • Install Red Hat Linux using Kick-start and applying security policies to harden the server based on company policies
  • Automate task using cron job
  • Created disk partition, volume groups and Logical volume using Logical Volume
  • Successfully manage RPM and YUM package installations and other server management
  • Create new file systems, monitor disk usage and disk-based file system
  • Install and configure Apache, and support them on Linux production servers
  • Complete kernel compilation and kernel upgrade on Linux servers
  • Ensure all servers are synchronized with NTP server
  • Troubleshoot Linux network, security related issues, filter packets using tools such as iptables, firewall, and TCP wrappers
  • Create and Manage Users/Group accounts and setup a user's work environment
  • Monitor the File System, CPU load for better system performance parameters using iostat, vmstat and top command
  • Monitor and maintain system performance by adding, removing, administering hosts, users, disks
  • Performed the configuration and administration HTTP Server
  • Work closely with developers to ensure that all necessary applications are installed and running properly
  • Execute technical solutions to department standards and monitored performance using Nagios
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Non-cloudteam Skill
Education
Computer Engineering
University of Buea 2012
Certifications
& LICENSES
Red Hat Certified System administrator AWS
Certified Solutions Architect Associate
Skills
Apache
2021
6
AWS
2021
6
BaSH
2021
6
CentOS
2021
6
Cloud Infrastructure
2021
6
Cron
2021
6
Database Upgrades
2021
6
DNS
2021
6
Firewall
2021
6
Kickstart
2021
6
LDAP
2021
6
Linux
2021
6
Nagios
2021
6
NAT
2021
6
Network Security
2021
6
NTP
2021
6
OpenShift
2021
6
Performance Monitoring
2021
6
Performance Tuning
2021
6
Problem Solving
2021
6
RHEL
2021
6
RPM
2021
6
Scripting
2021
6
Solutions Architecture
2021
6
System Administration
2021
6
System Architecture
2021
6
System Monitoring
2021
6
TCP/IP
2021
6
VMWare
2021
6
YUM
2021
6
BMC Remedy
0
1
RedHat
0
1
Server Admin
0
1
Ubuntu
0
1
Virtualization
0
1
vSphere
0
1