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Job Description

Infrastructure and Security Specialist

  • Strong VMware, Windows, Linux and Networking background
  • Minimum 8+ years of experience.
  • Worked on Production, DEV and TEST environments.
  • Worked on Datacenter Implementation.
  • Worked on several Infrastructure and application migrations.
  • Worked on Cloud Migration services.
  • Supported International clients.
  • Ability to work independently and handle crisis management.
  • Managed 100+ servers with multiple technologies like Linux, Windows, Solaris, VMware, Hyper-V, etc …
  • Ability to perform multiple, technical, highly complex tasks with need to regularly upgrade skills to meet dynamic job conditions.
  • Strong knowledge with centralized and automated system and application deployment via scripting.
  • Strong knowledge with routing, vlan and firewall configuration
  • Industry standard certifications such as Security+, CISSP, GSEC, ITIL, Microsoft, Cisco certifications added value.
  • Designing and implementing for on-site, off-site and international server infrastructure
  • Assessing and administering all equipment, hardware, and enterprise software upgrades. Practice in network asset management, including maintenance of network component inventory, life cycle management and documentation
  • Full Time position willing to work in US Time zone and extended shift hours.


  • Operating System:  Windows, Solaris, Linux, VMware ESX, Citrix, etc..
  • Virtualization : KVM, OpenStack, VMware, Hyper-V, Citrix, RedHat
  • Networking: Cisco Nexus, ASA Firewall, SonicWALL, VPN’s etc…
  • Software : Nginx, Python, Apache, Docker, cPanel, PHPmyAdmin, WordPress, Jira, Confluence, SpiceWorks, etc …
  • Monitoring : Ossec, Nagios, Cacti, MRTG, LibreNMS, Observium, etc …
  • Database: MySQL, SQL, Sybase ASE, Oracle, DB2, etc…
  • Mail Server : Microsoft Exchange, Office 365, Zimbra, Qmail, Cisco IronPort, etc …
  • Source Control and Continuous Integration : CVS, Docker, Visual Source, CCNet, Slack, etc …
  • VoIP:  Trixbox, Asterisk, Elastix, Skype for Business, etc..
  • Backup Software: Veeam, Symantec, Linux custom scripting.
  • Load Balancer: F5, Citrix Netscaler, KEMP, Loadbalancer, Zeus (ZenOSS), etc ..
  • Storage:  EMC, Nimble, Compellent, HP, etc…
  • Cloud Services : Microsoft Azure, AWS, etc …
  • Scripting: Power Shell, bash, Korn, shell, etc…

Job Description – India

•                     Having extensive knowledge and experience in Infrastructure deployments.

•                     Experience with Amazon S3, VPN, EC2, CloudFront, CloudWatch, Load Balancer, etc…

•                     Linux KVM over IP server build & rebuild

•                     Installing and configuring load balances like Zeus, KEMP, etc..

•                     Design and implementation of the virtual environment with VMware ESX 4.x and later on HP, DELL, etc… with local SCSI and centralized Fiber Channel storage

•                     Deploying the New VM from the template and cloning an existing VM as per the client request through change management process. 

•                     Experience with configuring Cisco, DELL Switches and Routers.

•                     Experience with Fiber Channel switch configuration.

•                     Worked on VoIP technologies.

•                     Installing Linux and configuring ESX servers, creating duplicate VMs using cloning technology. Administrated DHCP, DNS, NFS, NIS and Samba services in Linux, Database server with Web interface phpmyadmin/Squid/memcache, CPanel , etc …

•                     Linux performance tuning such as patching and building optimized kernel. Creating and managing VMware cluster. Enabling HA and DRS features in a cluster

•                     Knowledge with Distributed file services and replication.

•                     Configuring alarms, manage task, events and alarms, root cause & system log analysis and reporting,

•                     Moving VMs from one LUN to another LUN using Storage VMotion.

•                     Adding a new virtual disks and extending existing volumes, disk, hardware monitoring.    

•                     Installing, configuring and managing virtual infrastructure and virtual center

•                     Installation OS and configuration of virtual machines in an enterprise SAN environment

•                     Creating raw partitions and iSCSI storage partitions.

•                     Moving physical machine to virtual machine using P2V converter.

•                     Troubleshooting problems with the help of Event Logs, troubleshooting virtual machine issues

•                     Managing VMs through web access, Configurations of Virtual switches and network connections.

•                     Networking Monitoring Systems: MRTG, Cacti, Nagios, LibreNMS, Observium, Ossec, etc ..

•                     Knowledge with configuring Exchange, Zimbra, Qmail, etc…

•                     Knowledge with Skype for Business installation and configuration.

•                     Knowledge with Microsoft System Center Configuration manager.

•                     Experience with Cisco IronPort email gateway configuration.

•                     Installing client and servers, software for upgrading and maintaining network and Security, system Integration open source software under linux.

•                     Apply patches on all Linux/Windows boxes from common repository using  RPM & source code

•                     Installing and Configuring of linux systems and servers related Apache, Fastcgi, MemCache PHP, PHPmyadmin, MySQL, JBoss. Nginx, Python, etc… to ensure availability of services to authorized users.

•                     Experience with cache servers deployment and configuration like Redis.

•                     Installing and configuring MongoDB, SQL Server, MySQL, and Sybase ASE with Cluster configuration.

•                     Installing and configuring transcoder server like ffmpeg.

•                     Experience with configuring Nginx clusters

•                     Worked on cloud infrastructure like Amazon, Azure with VPC network configuration.

•                     Adding and deleting user. Kernel compiling.

•                     Creating and managing resource pools and adding the VMs into resource pools, LAMP (Linux, Apache, MySQL, and PHP) setup, configuration & maintenance.

•                     FTP, SSH, SCP Protocols, Software & patch addition, modification & removal

•                     Monitor, deploy & configure Linux on IBM, and HP servers, Creating and managing virtual machines and installing VM Tools into VMs. Managed Disks and File systems using LVM on Linux and Configuration Web Control Panel.

•                     Planning and  Implementation  of SAN storage solution Allocation of storage to blade servers (Creation of LUN’s) Mirrors and RAID 0, 1 and 5 levels.

•                     Experience with configuring and managing Virtual disks

•                     Planning and   Implementation Virtual Desktop Infrastructure.

•                     Support for configuration of thin Clients to connect local servers. IP tables

•                     Identifying project needs and planning an Implementation solution for the Desktop needs, Manage users, groups, permissions and roles.

•                     Planning Implementing and MPLS Network. Installation and configuration of Data Center Router and Branch routers Switches Managing Leased Line Network, Servers Installation OS & MySQL and Oracle enterprise servers in virtual Farm.

•                     Software installation using  RPM, Yum & TarBall

•                     Worked with command line editors to create automation jobs and monitoring.

•                     Planning and Implementing Apache  Web Server, Samba, solutions (In-house) Migration and configuration of  CRM,ERP,LMS, Database and Corporate Website Servers in Virtual farm  at DC.

•                     Security hardening and Monitoring of VM’s & ESX servers (CPU, Memory, Disk, Network Utilization) for Security Compliance

Job Details

Total Positions:
2 Posts
Job Shift:
First Shift (Day)
Job Type:
Full Time/Permanent
Job Location:
P.E.C.H.S, Karachi, Pakistan
Minimum Education:
Career Level:
Experienced Professional
Minimum Experience:
8 Years
Apply Before:
Oct 18, 2017
Posting Date:
Sep 18, 2017
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7NSoft Systems (Pvt) Ltd

Information Technology · 1-10 employees - Karachi

Sybase Solutions Corporation Pvt. Ltd., managed by a dynamic team specialized in Information Management & Integration, Enterprise Mobility, Development, Designing and Modeling Tools. Sybase products enables customers to unwind their enterprises, where business-critical information can be securely m ...Read More

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