Lead Linux Systems Administrator/Engineer Resume

SUMMARY

Cross - platform IT professional with experience in Core IT support, IT Management and Deployments of Virtual, Cloud and Physical Infrastructures .
Extensive experience m anaging and maintaining servers in a hybrid IT infrastructure environment .
Evaluated, monitored and enhanced IT infrastructure in regards to availability, reliability, scalability, security, data confidentiality and system integrity .
Looking for a S ystems administrator position in order to apply my skills, make a positive impact on the company’s success, and build a long-term career, while growing along side the company.

TECHNICAL SKILLS

Operating Systems: Centos 6/7, Red Hat 5/6/7, Suse 10/11, Solaris 10.

Network: TCP/IP, UDP, DNS, DHCP, NFS, SMTP, SNMP, NTP, SSHD, HTTPD, ETC ...

Hardware: HP, Dell, Cisco

Languages: Bash

File System: Ext3, Ext4, XFS, Btrfs

Configuration Tools: Ansible, Blade logic

Monitoring Tools: Nagios, Dynatrace

PROFESSIONAL EXPERIENCE

Confidential

Lead Linux Systems Administrator/Engineer

Responsibilities:

Primarily responsible for keeping virtual and physical servers up and running
Managed, maintained, failed over, cleared faults, troubleshooted veritas cluster
Setup and configured multipathing on Suse database servers.
Installed, uninstalled and managed commvault for backups and restoring files
Led a project to migrate Suse application servers to rhel 7.
Created jobs with bash scripts to work with bladelogic.
Used Infloblox to manage DNS creation, modification and deletion
Created new standards for OS patching for the application team
Monitored disk space and partitions using LVM
Troubleshooting knowledge of network protocols such as NFS, DNS, TCP/IP, SMTP, SNMP
Hands on experience with ticketing tools, such as service now and Jira.
Performed ongoing hardware upgrades, resource optimization and performance tuning.
Worked on Nas servers for to export filesystem to applications server.
Extensive experience working with VMware
Created virtual machine through cloning, template and manually.
Created and managed virtual machines on Vsphere client.
Used Vrops in order to monitor system usage.
Performed hot and cold Vmotion migration between different hosts.
Maintained Dell, and Cisco physical servers.
Coordinated with various vendors for troubleshooting, and scalability.
Provisioned and decommissioned physical and virtual servers.

Confidential

Sr. Linux Systems Administrator

Responsibilities:

Managed routine system backups using cron jobs.
Used configuration management to distribute packages and updates across the environment.
Used automation tools such as Ansible
Experienced working with Ansible
Used Ansible modules to retrieve and monitor data accross the enviorment
Created playbooks to provision, configure and patch various machines
Managed Nas shares
Configured Nas with Autofs .
Experience with racking/stacking bare metal servers in a data center.
Troubleshooting and providing resolutions for OS related issues.
Configured and used PXE-Boot Servers to provision Redhat, CentOS and Solaris servers
Remediated OS and system vulnerabilities.
Proficient in performance management using tools such as TOP, IOstat, and Iftop.
Created and managed NIC bonds.

Confidential

Linux Systems Analyst

Responsibilities:

Performed identity Access Management
Used AWS IAM tool to manage user accounts and privileges
Created/Removed users and groups in accordance to the environment needs
Delegated access for users using GPOs
Monitoring the overall health of our servers constantly through health check reports
Utilized McAfee FoundStone Vulnerability Manager and remediated any risks.
Perform file archival and purge using log rotation
Upgraded and configured system software that supports infrastructure applications using YUM and RPM packet managers
Generated passwordless SSH authentication using SSH key pairs
Troubleshooted and resolved issues with ssh connections
Managed the different RAID levels, such as 0,1,5,6 and 10, on Sunfire, Dell and HP servers
Used Wireshark to troubleshoot complex network connectivity issues
Synchronized the time zone using NTP servers