Computer Engineer
venturia
Total years of experience :16 years, 6 Months
• Architect and Solution Engineer for multiple ecommerce projects in the USA.
• Database administration including SQL Server tuning, monitoring, query analysing, 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, SAMBA, SMTP, OpenVPN, and IP Tables.
• Preparation of operational handover documentation and application logical diagrams.
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.
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.
B tech in Computer Science and Engineering
3 Year Diploma in Computer Hardware and Maintenance
