Linux Engineer Administrator

RESUME

S.SHANMUGASUNDARAM

*/*, ****** ***** *** street,

Adambakkam, Chennai - 600088

E-Mail: *************@*****.***

Mobile: +91-995*******

Career Objective:

Seeking a challenging position in reputable organization to expand my learnings, knowledge and skills. Secure a responsible career opportunity to fully utilize my skills, while making a significant contribution to the success of the company.

Certifications:

Red Hat Certified System Administrator (RHCSA)

RHCSA Certificate Number: 120-031-695

Red Hat Certified Engineer (RHCE)

RHCE Certificate Number: 120-031-695

Academic Credentials:

Bachelor of Science in Computer Science from Rajapalayam Rajus College, Rajapalayam. 2007 - 2010 (First Class).

AWS Knowledge:

IAM : Creation of user accounts and setting up MFA. Delegation of permission for users. EC2 : Building an EC2 windows and linux instances. Creating own custom AMI and assigning Elastic IP’s. Configuration of autoscaling policies based on the Load. S3 : Creating buckets and given permissions. Knowledge in Enable versioning and storage classes of S3.

EBS : Creation of volumes and adding to AMI.

VPC : Creation of custom VPC.

Linux Skills:

Operating Systems : Linux (RedHat,Centos &Ubuntu), Windows 7,8 and server2012. Package manage tool : YUM, RPM, APT-GET

User & Group Admin : Create users, changing group ownerships and permissions. Special Permissions : SUID,SGID,STICKYBIT and ACL. Script : SHELL

Disk Management : LVM and RAID

Servers : DNS, DHCP

File Servers : SAMBA,NFS,FTP

Web Servers : Apache

Proxy Servers : SQUID

Mail Servers : POSTFIX

Firewall : IPTABLES, FORTIGATE

Automation job : CRON

Version Control : Knowledge in SVN and GIT

Backup tool : NETVAULT, Netbackup

Ticketing tools : e-HelpLine, ServiceDeskPlus, ServiceNow Monitoring tool : Appmanager, ITM

Others : Knowledge in Cloud technology

Work Experience:

Linux L3 Administrator

Wipro Technologies Pvt Ltd., Chennai.

Client: CITI Bank

From June 2019 to Present

Responsibilities:

Responsibilities for day to day operations, implementations & support of production and development servers.

Working on 24/7 rotational shifts basis including weekend.

Troubleshooting the issues escalated by the L2 teams for L3 resolution.

Experienced in supporting projects for golive implementation and operational activities

Using Starfleet tool to upgrade RHEL 6 to RHEL 7 servers.

Experience in Chef Automation tool.

Applying the latest patches to the linux servers along with management tools using playbook and manually also.

Experience in maintaining physical and virtual servers.

Experienced in configuring file system management using logical volume manager and resolving disk space errors.

Using ServiceNow ticketing tool to work with incidents, request and change tasks also. Recently working in JIRA tool.

Experience in linux kernel configuration and fixing kernel issues.

Experience in backup configuration and restoration to servers using Netbackup.

Experience in troubleshooting the booting issues.

Followup with clients to ensure their servers are fully functional after troubleshooting.

Diagnose and troubleshoot the technical issues then providing the root cause of fixed issues.

Experience in shell scripting for cron job.

Experience in decommission the unused linux servers. Linux Administrator

Zoho Corporation Pvt Ltd., Chennai.

From July 2017 to June 2019

Responsibilities:

Responsible for installation, configuration and maintenance over Linux servers.

Managing package/upgrades using RPM and YUM.

Experienced in User and Group Administration.

To Perform Security Patching and KERNEL upgrade in Linux servers.

Managing different file servers like NFS, SAMBA and FTP.

Configuration of RAID and managing LVM.

Managing special permissions like SUID, SGID and STICKYBIT.

Diagnosing performance and network related issues using top, ps, netstat.

Implementing ACL configuration for users and groups.

Reset the password using single user mode in linux servers.

Managing Apache HTTP Web Server.

Configuring and maintaining IPTABLES for security related works.

Technical support to the users through SDP Ticketing tool, chat and phone.

Monitoring servers using Appmanager tool.

Create FIREWALL policies as per the request through FORTIGATE.

Configuring and managing Postfix Mail Servers.

Configuring and maintaining of Squid Proxy Servers.

Configuring & Managing DHCP and DNS servers. Maintaining DNS records and Website redirection done using zac tool.

Installation of Docker in linux servers.

Create and delete user accounts as per the request in Active Directory and troubleshoot VPN issues.

Experience in hardening the Linux servers.

Using NETVAULT tool to perform data backup as per the schedule activities and recovery data for clients as per requirement.

Deploying and managing the Virtual machines through Vmware ESXi, XEN and KVM.

Scheduling periodic task by using CRON job.

Creating and managing SWAP space in linux servers.

Mail administration in control panel.

Call log to ISP team for link outage issues and rectify it.

Troubleshooting Avaya phone issues.

Working with Vendors (DELL,HP) for hard disk failure case.

Working in 24x7 Datacenter environment.

Linux Engineer

Wipro InfoTech Pvt Ltd., Chennai.

Client: Yes Bank

From March 2016 to July 2017

Responsibilities:

Scheduling the job using CRON.

Creating Physical Volumes, Volumes groups and Logical Volumes (LVM).

Linux user & group Administration

Handling daily operations using Ticketing tool, chat and phone.

Assigning permission using ACL.

Basic Shell scripting.

Troubleshoot FTP user accounts and its home directory related issues.

Applying Linux Server Patches on all production and testing servers.

User management in AIX servers.

Performing NFS operations.

SSH password less login using ssh-keygen

Checking Linux server 's CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring

Performance monitoring using vmstat, top, netstat in all environments.

Clear memory caches.

Check the mail logs based on customer requirement.

Installation on software’s like nmon & nimsoft packages and updating vmtools. Linux System Administrator

Soft_Solutions4U Pvt Ltd., Adyar, Chennai.

From December 2013 to December 2015

Responsibilities:

Installation and configuration of centos, ubuntu & windows.

User and Group Management.

MySQL Server Installation and administration.

Knowledge of version control software's GIT and SVN.

Installation and configuration of file sharing servers like NFS, SAMBA and FTP.

Configuring and Maintaining servers such as Squid Proxy, HTTP.

Managing Software installations using YUM, RPM, and APT-GET installation.

Installation of Apache web server and Configuration of Virtual host.

Implementing Samba Server Interactions with Windows and Linux.

Maintaining postfix mail server.

Disk space management using LVM.

Scheduling Automatic Jobs through crontab.

Configuring & Managing Printers.

Installation and configuration of LAMP SERVER in ubuntu systems.

Database management through PHPMYADMIN.

Knowledge to install Java JDK and Developer IDE.

To install SVN client tools in Linux machines.

Knowledge to install VNC Viewer and server in Linux machines.

Handling upload and download file through FTP.

Providing support to the employees both software and hardware wise. EXECUTIVE

Laserwords Pvt Ltd., Adyar, Chennai

From January 2011 to August 2012

Responsibilities:

Create the objective type question as per client specification. The entire typesetting circle depends on the data supplied by the customer i.e. the data will be .doc/.rtf/.pdf or in any format.

Personal Profile:

Name : SHANMUGASUNDARAM S

Father’s Name : SANKARAN S

Sex : Male

Age : 32 years

Date of Birth : 12-03-1990

Maritial Status : Married

Nationality : Indian

Permanent Address : Plot No.8, Balaji Nagar 5th Street, Ragava Avenue, Adambakkam Chennai-88.

Declaration:

I hereby declare that the above-mentioned information is correct up to my knowledge. Place : Chennai

Date : (S.SHANMUGASUNDARAM)

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