Senior Engineer Technical Operations
Dinoct Solution
مجموع سنوات الخبرة :17 years, 5 أشهر
# Managing a team of 12 plus.
# Design, planning and managing mission critical production servers hosted in AWS cloud environments.
# Task estimation calculation for customers.
# Creating and managing infrastructure stack on AWS.
# Conducting and providing RCA's.
# Meeting client SLA's.
# Managing the production environment for our clients under HIPAA regulations.
# Experienced in working with ITIL based process.
# Experienced with AWS services like EC2, EBS, RDS, VPC, S3, IAM ..etc
# Exposure with virtualization technologies like AWS, Hyper-V, virtuozzo, Xen, VMware
# Working on different OS platforms like Oracle Enterprise Linux, Ubuntu, CentOS Linux, FreeBSD, Windows Servers.
# MySQL administration and replication.
# Server tuning and optimization.
# Planning environmental upgrades as per the requirement.
# Defining and implementing backup policies for the production environment.
# Conducting weekly/monthly meeting with our clients.
# Planning and distributing tasks for our internal team.
# Managing IT security and policies.
• Installation and configuration of Oracle Enterprise Linux for new build environment.
• Installing pre-requisites for deploying the Oracle applications like E-Business Solution, Primavera etc.
• Configuring Kernel Parameters and Resource Limit for Oracle Database.
• Virtual Machine administration on Hyper V (Creation, Cloning, Extending resources etc).
• Administrating LVM (Extending volume size).
• Auditing servers and generate reports.
• Handling OPManager monitoring tool and monitoring servers through OPManager.
• Create new bash scripts as per the requirements.
• Perform assigned tasks by the application development team.
• Configuring NTP service and fixing the errors.
• Linux File System Management (partitioning, formatting, securing & mounting).
• SSH public key authentication and SSH port forwarding.
• Application data syncing as per the requirements.
• Administrating NFS and Postfix servers.
• User Management & Administration (User, group creations for the Oracle application).
• Worked with multipath/shared LUN requirements.
• Perform Rsync, backup as per the requirements.
• Trouble shooting Linux server (Grub, fstab, filesystem, Xserver, initrd, login).
● Handling Ticketing System (WHMCS, Nocworx etc) and provide technical or functional support (level 2 and level 3) to the customers.
● Finding/managing server load issue and memory outage problems.
● Monitoring servers and services by using the monitoring tool.
● Trouble shooting DNS level issues.
● Administrate mail servers (Exim, Postfix, QMail), investigate and fixing spamming issues.
● Installing, configuring and troubleshooting firewalls Iptables, CFS, APF.
● Finding malware from accounts and taking necessary steps to prevent it in the future.
● Administrating, troubleshooting, optimizing Apache/Nginx/LiteSpeed webservers.
● Worked on virtualization technologies like Xen PV and OpenVZ/Virtuozzo
● Writing basic level shell scripting for automating administration tasks/processes.
● Perform hosting accounts/server migrations as per the requirements.
● Server auditing procedures for our server management clients (weekly or monthly).
● Managing/trouble shooting/optimizing MySQL server (including backup).
● Managing hosting control panels like cPanel, Plesk, Interworx.
● Perform server hardening process.
● Disk Space or quota management.
● Installing several Apache/PHP extensions.
● Version upgrade(Apache, PHP …etc).
● Manage LVM (creation, expansion and snapshots).
● Installing SSL certificates.
Main Duties:
● Manage the Ticketing System Application of the respective clients and interact with their customers through tickets.
● Investigate about the customer issues/requirements based on their tickets and provide a solution based on the SLA.
● Manage the Live Chat System and interact with their customers.
● Provide remote desktop support for the customers.
● Responsible for installing and managing Linux server applications.
● Responsible for monitoring the status of the servers.
● Fixing Email spamming and taking preventive measures.
● Manage and troubleshoot Mail servers like Exim. Qmail, Postfix.
● Managing DNS Servers and trouble shoot various DNS records related issues.
● Configuring FTP Servers and troubleshooting related issues.
● MySQL server administration, which meets the various database related needs in the Internet industry.
● Maintained necessary back-up of the different user accounts.
● Performed MySQL database backup and restoration as per the clients’ request.
● Installing, configuring and troubleshooting firewalls like CSF and APF.
● Exploits detection and prevention: Server rootkits and malware scanning, running security updates for possible exploits and hack scripts.
● Migration: hosting account migration on Linux servers automated and manual (plesk to cPanel, Email Migration). Testing and fixing Website, Database and Email related issues after migration.
● Installing and configuring various operating systems like Linux (RHEL, Centos, Ubuntu), Windows (xp, win 7, win server 2008).
● Installing and configuring the services like Apache, MySQL, PHP, Bind, DHCP, Postfix, SSH, FTP, Cron, Yum, Samba, NFS
● Deploying our projects on client's servers (creating hosting accounts, pointing domain, uploading files and setting up database).
● Installed /configured Ruby On Rails, ffmpeg, Lame, Red5, Movino, Darwin Streaming Server, Wowza media server.
● Database management (backup & restore, creation (database & user), importing & renaming tables, granting permissions).
● Managing VOIP devices like Vonage and Linksys and EPABX systems.
● Configuring and Managing UTM box SonicWall
● Implemented mobile video streaming server (RTSP) project.
● Implemented PC video streaming server (RTMP) project.
● Implemented Mobile video broadcasting project.
● Implemented dynamic sub-domain creation and URL masking for projects.
● Implemented Ruby on Rails based mp3 project.
● Providing remote support to our clients for implementing and troubleshooting services like red5, ffmpeg etc…
● Web hosting Experience (WHM, Cpanel and Webmin).
● Domain registration, domain pointing, Adding/Suspending/Terminating hosting accounts.
● Hosting server migration (restoration of web site, database, ftp and email accounts).
● Restoration of MySQL databases (for wordpress, joomla, drupal sites) from backup.
● Installed web applications like SugarCRM and OrangeHRM.
● Installation of php extensions Json, Sqlite, mysqli, mbstring, mcrypt….. etc
● Setting up cron jobs.
● RAID 1 configuration.
● Installation and configurations of LAMP, MAMP, WAMP and XAMP.
● Experience with Vmware workstation and SunBox.
● Installed Endian(community edition) Unified Threat Management System on a PC,
and implemented services like OpenVPN, content filtering, proxy and port forwarding.
• Assembling PCs and troubleshoot for hardware/software problems.
• Installing various flavors of operating systems like Windows 95/98/XP/2000/Millennium, Linux flavors Redhat/Fedora/Suse/School Linux, Unix flavor OpenBSD.
• Recovery of data from crashed non bootable OS.
• Understanding user’s issues and suggest workaround if possible.
• Hardware/software upgrade and planning for future expansion.
• Escalating the Complex Application issues to Central support team during Urgency.
• Managing disk space, user profile creation and user rights management.
• Assembling of computers, performed upgrades, consulted customers to choose the proper configuration, for their needs.
• Provided functional and technical support, troubleshooting and diagnosing hardware and software problems, including desktop, laptop and LAN.
• Crimping (Straight & Cross Over).
• On site Servicing based on AMC.
• Configuring Printers and Fax systems.
• Anti-Virus installation, configurations, virus removal.
• Data backup and restoration.
• Modem configurations Dialup/ADSL and Wifi setups.
• E-mail client configurations (Outlook & Thunderbird) email backup, restore and migration.
• Installing Windows 2003 server and Implemented services like ADS, DNS, Mirroring, Quota,
NTFS permissions management. Installed and configured Windows Terminal Server.
• Handling Norton Ghost.