Linux Systems Administrator Resume

SUMMARY

Seeking an opportunity in the field of Linux engineering to utilize my acquired skills, experience of 7+ years with LINUX Administration in RHEL 6/7, Centos 6/7 and extensive knowledge of DevOps with a proven record of:
Strong experience in System Administration, Installation, Upgrading, Patches, Migration, Configuration, Troubleshooting, Security, Backup, Performance Monitoring in LINUX (Red Hat Systems)
Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and RAID disk partitioning
Working knowledge of Automation tools, such as Ansible for configuration management

TECHNICAL SKILLS

PROFESSIONAL EXPERIENCE

Linux Systems Administrator

Confidential

Responsibilities:

Incorporated Automated Installation of multiple CentOS 6&7 servers using PXE server and Kickstart files
Wrote Ansible Playbooks/Roles to configure services, such as NFS, AutoFS, FTP, Samba, Apache, HAproxy, Nagios, LDAP, Docker-Swarm
Implemented redundancy solutions by configuring failover load balancing usingipbonding for NIC cards and maintaining load balancing of Apache servers with HAProxy
Enhanced system security with strict policies, such as managing password aging, restricting users from re -using their last 5 old passwords and enforcing them to set stronger password through PAM module, as well as managing secure password less login through Secure Shell (ssh) etc.
Applied advanced partitioning schemes like Software RAID for redundancy and LVM for file system growth needs, which maintained availability, increased capacity & performance of machines in production
Took part in a project of creating Lab. environment with a total of 50 VMs and service configurations automated with Ansible
Participated in migrating Apache servers into AWS Instances behind Elastic Load Balancer (ELB) with all the website contents in S3 storage and AutoScaling feature enabled
Created and administered organizational Wiki pages and documentation
Providing 24/7 technical support to Production and development environments.
Deep understanding of change management and processes.

Linux Systems Engineer

Confidential, Jersey City, NJ

Responsibilities:

Performed standard system administration tasks, such as troubleshooting and problemresolution, patching, installing packages using rpm and yum and update, drivers, software andhardware upgrades;
Password management, allow other users sudo access.
Extensively interacted with the WEB, DBA and APP teams in the process of installation,configuration and administration of new Fault Tolerant Cluster Linux servers (mostly RedHat)and VMware ESX servers on Dell Hardware;
Configured services such as DNS,DHCP, NFS, Sendmail, Apache Web Server, Tomcat, LAMP(Linux+Apache+Mysql+PHP), Samba, SSH, FTP, http, RPM and YUM;
Participated in Hardening internet facing systems to provide maximum availability and security;
Took part in a Disaster Recovery Procedures to test redundancy between production and backupcenters;
Performed troubleshooting existing user accounts, security objects and authorizations to resolvesecurity conflicts by creating sudo users, supporting users, setting up new accounts, password resets;
Performed Memory and Swap management to improve optimization and performance of the servers.
Involved in Daily incident management and resolved the day to day problems raised by the users and incidents which are logged by Event monitoring system;
Created status reports, project plans and attend team meetings to coordinate activities;

Linux Systems Engineer

Confidential, Jersey City, NJ

Responsibilities:

Installed, administered, and updated CentOS Linux machines
Performed daily system monitoring, verified the integrity and availability of all hardware and server resources, and review system and application logs
Performed troubleshooting existing user accounts, managing sudoers file, setting up new accounts
Configured various network services like DNS, Apache Web Server, NFS, Samba, MySQL
Built bash scripts to automate repetitive system tasks, such as backups, collecting and sorting logs, installation and monitoring
Password management, allow other users sudo access.
Created status reports, project plans and attend team meetings to coordinate activities;.