Linux Server Administrator

Sreenadh Dev Surendranadh

***, ***** *

Koramangala, Bangalore.

Email - ********.**@*****.***

Mobile: +91-99-00-52-163*, 95 44 84 4313

SYNOPSIS

6.5 years of experience in Linux Server Administration + 1 Year Experience on Hardware.

3 Years Experience in Dubai + UK (Valid UAE Driving License).

Expert on AWS.

Excellent analytical, decision making, and problem solving skills.

Worked for US and UK clients and Data Centres.

Proven abilities in establishing effective task priorities, working independently, and participating

as an integral part of a team.

Reliable self-starter with the ability to plan, design, implements, and manage small, medium, and

large systems.

PROFESSIONAL SKILLS

• Linux Server Administration and Maintenance.

• LAMP stack Administration and Database and Replication Architect.

• LVM, RAID, SVN, DNS, FTP, SSH, SSL, NFS, VPN, SMTP, SNMP etc.

• MySQL Server Performance Tuning, Capacity Planning, Server Monitoring including

Query Analyzing, Backup and Recovery.

• Backup Server Management (BackupPC, Synology Disk Station, Amazon S3 and

Glacier).

• Oracle MySQL Enterprise Monitor + Query Analyzer, MySQL Proxy administration.

• Network, Load Balancers, Firewall, VPN, LVM, RAID, SVN, Proxy, Monitoring Tools

Administration.

• Web Server, Tomcat, FTP Server, DNS Server, Mail Server Administration.

• Bash Scripting for automating daily tasks.

• Cloud Servers and CDN Management (Hands on experience in managing hundreds of

high performance cloud servers on Amazon, Rackspace etc)

• Experience on Different Server Control Panels (Cpanel, Pleask, Direct Admin, Helm etc).

• Completed several server migrations.

• Nagios, Cacti, Percona, MRTG, Server Density, Pager Duty - Server Monitoring Tools.

• Experience on office 365 and DYN DNS and Mail Administration.

• Worked in 24x7 environments where server /application uptime has high priority.

• Team Administration including managing the shift, monitoring work flow, assigning work for

team members, interact with the clients and training for new team members.

TECHNICAL CERTIFICATIONS

Red Hat Certified Engineer (RHCE)

Microsoft Certified Professional (MCP)

Cisco Certified Network Associate (CCNA)

ORGANISATIONAL DETAILS

eVentuira, Dubai, UAE May 2011 – May 2014

Position: Computer Engineer

• Server Architect and Solution Engineer for multiple ecommerce projects in the USA and UK.

• Database administration including SQL Server tuning, monitoring, backup/restore and complex

replication architecture designing.

• Designing and maintaining mysql proxy, master-master and master-slave replication setup.

• When I started in the role, eVenturia had 3 servers and 8 employees and grew to a full sized

infrastructure with over 3,000,000 unique customers, 30+ servers, and 200+ Employees. The site

was handling over 200,000 page views per day.

• At eVenturia I was responsible for all platform related changes, architecture and all infrastructure

related issues. This was across the O/S, Database, Web server, Load Balancer, Application

Server, Security including firewalls and networking.

• Responsible for server optimization, performance tuning and code deployments.

• Configuration and maintenance of CRM (SugarCRM).

• Migrated applications from one data centre to another without business downtime. As part of

migration, Involved in the planning and development of infrastructure, gathering requirements,

designing and implementing enterprise-wide solutions.

• Experience of working on Load Testing, Stress Testing, Scalability Testing using Jmeter, Blitz.

• Securing the applications using ModSecurity, SSL, rewrite rules, Advanced Policy

Firewall(APF), Brute Force Detection(BFD), Server Auditing and Checking/Fixing the

vulnerabilities using McAfee scan.

• Collaborate closely with development team to improve the overall architecture design and

scalability.

• Experience on Dyn DNS Manage (GeoTraffic for Security), Microsoft Office 365, Cloud Servers

and CDN.

• Troubleshoot/Analyse complex issues independently using application logs and system logs.

• Automated the system administration tasks using bash scripting.

• Experience working on system monitoring using Nagios, Pagerduty and Cacti. BackupPC

Administration, security monitoring using Mod_sec audit logs, firewall logs, application logs

and McAfee scan logs.

• Working experience on KVM virtualization, LVM, load balancing, high availability and SAN

storage.

• Administration of the Linux & Windows Systems, users, folders and file management,

management of DNS, NFS, SMTP, OpenVPN, and IP Tables.

• Preparation of operational handover documentation and application logical diagrams.

Poornam Info Vision Pvt Ltd, Cochin, India May 2008 - September 2010

Position: Software Engineer

Poornam Info Vision is a ISO 9001:2001 and 1SO-27001 certified company providing Quality

Outsourced Technical Support, Server Administration services, Network Management and Software

Development services to Hosting companies and ISPs around the world. With over 300 employees,

Poornam directly monitors and manages Servers/Networks with over 4 million websites.

For more information: www.poornam.com and www.bobcares.com

Job Responsibility

Managing thousands of servers for major data centres in US and UK. Out of this 65% of the servers

were Linux and rest of them was Windows. I was working in a team environment and my

responsibilities include:

• Installation, configuration performance tuning and troubleshooting of software such as Apache, exim,

sendmail, bind, MySQL, PHP, IIS, WAMP MSSQL etc.

• Servers are accessed remotely via SSH and rdesktop; KVM and rAdmin are also used in different

scenarios.

• Managed hosting control panels like cPanel, DotNetPanel, Ensim, H-Sphere, Helm, Plesk and Webmin.

• Managed ticketing systems like Kayako, Cerberus, Ubersmith, WHMCS and Salesforce.

• Backup/restore of domains/databases/emails etc.

• Monitoring servers and services using Nagios.

• Installation, configuration and maintenance of different software like cPanel, Zimbra, FFMPEG,

FANTASTICO, RED5 etc.

• Knowledge in Linux Shell Scripting.

• Dealing with day-to-day customer technical queries.

• Building servers in a customized manner as per customer’s request.

• Managing local development and testing infrastructure.

• Root cause analysis and Impact analysis for every change.

• Automated the system administration tasks using bash scripting.

• Taking regular backups and planning backup rotation and retention period.

• Mysql database installation, database backups, updating mysql queries and database replication.

• Experience of working on Firewall using Iptables (CSF and APF).

• Created comprehensive user documentation as well as training for both clients and support staff.

• Experience in the support of fundamental technologies such as DNS, FTP, SMTP, SNMP, LDAP, NFS,

SSH, RAID, DHCP, SVN, Postfix, Open VPN, Nagios, Samba, Xen, and Apache.

Vanilla Networks Pvt Ltd, InfoPark, Cochin, India April 2007- April 2008

Position: System Administrator

• Responsible for day-to-day administration of servers and desktops

• Troubleshooting and maintenance of 2000+( Apache, Tomcat and Mysql) servers.

• Good exposure in working Server related issues across different data enters.

• Working on Red Hat, Centos, Ubuntu and Debian.

• Worked on NIC Bonding, installing packages for various clients. Added the Red hat

servers to Red hat satellite network and performed kernel upgrades, packages upgrade.

• Performed post installation checks for various clients.

• Installed operating system using Kickstart and configured Raid setup in servers.

• Enabled monitoring for servers using NRPE and SNMP in Nagios monitoring tool.

• Performed maintenance activities for clients on weekends.

• Ensuring trouble tickets raised by users are cleared within the SLA.

• To maintain 300+ user accounts in Win 2003 Server Active Directory domain controller.

Perform, monitor, and maintain security access privileges according to established policies,

standards, software licenses and procedures.

• Look after technical infrastructure requirements, disaster recovery procedures, offsite data

storage, e-mail usage guidelines, and software update systems, software approval guidelines,

group policies and security scanning processes almost completely alleviating network failure.

• Ensure company network for reliability, security and ease of use.

• Implemented Nagios for service and system state of servers monitoring remotely.

• Installed and maintained Zimbra Mail Server

• Experience in the support of fundamental technologies such as DNS, NFS, FTP, SMTP,

SNMP, LDAP, SSH, TCP, RAID, DHCP, BUGZILLA, Send Mail, Apache Tomcat and Firewall.

Routers systems and Technologies Pvt Ltd, Quilon, India December 2005-January 2007

Position: Service Engineer

• Hardware Assembling

• Troubleshooting Hardware and Software issues.

• Configuring LANs

• Prepare and deploy the software distribution packages for various applications.

ACADEMIA:

• B-Tech in Computer Science (2003-2006)

Caarmel Engineering College- Perunaadu, Ranni

Mahatma Gandhi University, Kerala, India

• Diploma in Computer Hardware Assembling and Maintenance (2000-2002)

Model Polytechnic, Teekoy, Erattupetta

Institute of Human Resources and Development, Thiruvananthapuram

Personal Summary:

Work experience : 7.5 Years

Date of Birth : 20-12-1981

Nationality : Indian

Marital status and sex : Married, Male

Languages known : English, Malayalam, Tamil

Father’s Name : V.K. Surendranadh

Mother’s Name : Lalithamani Amma

Passport Details : F9128673

Pan Card Number : BSJPS6145N

Address in India : Devi Villa,

Kalanjoor P.O.

Pathanamthitta (District), Kerala, India

Declaration:

I hereby acknowledge that the above given information are true to the best of my knowledge and belief.

Sreenadh D.S.

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