Wajid A. Mohammed

acqx20@r.postjobfree.com

469-***-****

EXPERIENCE SUMMARY

With over 8+ years of IT experience working as Systems Administrator in different large and complex environments with midrange to high end servers, I have worked for Telecom, Financial, Healthcare and Service sectors, and also have extensive experience in designing, building and supporting both development and production environments.

An extensive skill set dedicated to System Administration Around 8 years of experience in Administration of Red Hat Enterprise Linux 3.x/4.x/5.x, Sun Solaris 8/9/10/11, SUSE Linux Enterprise 8, AIX 5/6/7 and Windows servers.

Experienced in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.

Performed automated deployments using Puppet on top of Linux VM’s which are part of VMware environment.

Proficient in all aspects of Red Hat Enterprise Linux (RHEL), Sun Solaris and SUSE Linux Operating systems from Installing, Configuring Hardware, and Customizing Applications using the latest technologies available to design fully automated operating systems.

Extensive experience in installing, upgrading, maintaining and configuring Red Hat Enterprise Linux on Dell Power Edge and HP servers using Custom and kick start installation, SUN Solaris on Dell Power Edge and Sun SPARC Servers using Jumpstart Servers and Interactive Installation..

Configured server hardware and performed kernel tuning based on the applications to be installed and the number of users.

Experience in managing servers connected to EMC & HDS SAN environment’s like Clarions, DMX, VMAX, USPV, VSP, AMS and performed migration activities using Solaris, VERITAS & Red hat LVM.

Experience working with replication using EMC SRDF & HDS True Copy to perform DR.

Installed, configured and maintained Solaris Containers and Zones on Sun Solaris 9/10/11 servers respectively and performed migration activities.

Created Domains in Sun SPARC M5000 servers and Created LDOM’s on Sun SPARC T2000/5220/5240/ series servers.

Performed Disk Mirrors and RAID 0, 1 and 5 levels on several UNIX and Linux servers.

Experience in Installing, Configuring, and Implementing Virtualization Environment Using VMware (Server and Desktop software) and Sun Virtual Box.

Experience in p2v migrations using Virtual servers VMware ESX server and Xen.

Installation and configuration of ESX Host Servers starting from legacy versions like 2.0.1, 2.1.3, 2.5.2, 2.5.4, 3.0 to the latest version 3.5 and Virtual Client 1.0, 2.0 and 2.5.

Upgrading of VMware ESX 3.0.0 to ESX 3.5

Configuring SUDO and granting root permission to TSM Backup Admins/DBAs to perform root related activities.

Discovered and attached LUNS provided by the Storage team to the required Unix/Linux Servers

Upgraded servers using RPM Package Manager and yum (Yellow dog Updater modified).

Strong technical background in Solaris Volume Manager (Solstice Disk Suite), Logical Volume Manager (LVM), VERITAS Volume Manager, and logical partitioning.

Experience with Oracle RAC on RHEL

Good experience and understanding of Storage Area Network (SAN) technology including zoning, disk creation on various systems, maintaining and configuring various fiber switches and performing replication activities.

Experience installing backup software like TSM

Netback up on Linux and UNIX servers.

Performed monitoring of High Availability using Red Hat Cluster Suite and Solaris servers using VERITAS Cluster.

Implemented cluster systems on Dell servers and IBM Systems p servers and performed monitoring of the clusters using VERITAS Cluster Server (VCS) and Red hat Clustering software.

Installed and configured LAMP (Linux, Apache, MySQL, and PHP) for different application

Working knowledge in various Application servers including Apache Tomcat, Red Hat JBoss, Oracle Web Logic and IBM Web Sphere.

Experience in supporting Red Hat Satellite Server, RHN

Hands-on experience in configuring SSH and FTP server/client systems to transfer files.

Worked on blade logic to automate entire life cycle of desktops, laptops and client devices.

TECHNICAL SUMMARY

Operating Systems: Red hat 6.2, 7.x, 8, 9, RHEL 3.0, 4.x, 5.x, 6.1, CentOS, SUSE 8,9,10 & 11, Windows NT 4.0, XP, 2000, 2003,Solaris 2.6, 7, 8, 9, 10, 11 & AIX 4/5/6/7

Hardware: IBM x series, IBM H series Blade servers, HP Proliant DL 360, 380 G3, G4,G5 & G6, Sun Fire 10k, 15k, E25K, E4800, E6800, E6900, M5000, M8000, v490, v890, T2000, T5120, T5520, x4100, x4250, 280R, 220R, 420, 450, E4500, 10, 20, D1000, 3510, 3511, Symmetrix DMX 800, HDS 9980, Dell 6800, 6850, 2800, 2900, 2450, 2400, IBM P550, P650, 670 & P750

SAN, Backup Solutions: EMC Clarions, VMAX, VNX, Power Path, SRDF, HDS VSP, USPV, AMS, True Copy, Shadow Image, HDLM, VERITAS Net backup 4/5, Legato Networker 6/7/8, TSM

High Availability: VERITAS Cluster server 4/5/6, Red Hat Cluster, Sun Cluster 2.0/2.1, 3.0/3.1/3.2

Volume Management: VERITAS Volume Manager/ Foundation Suite 3.2, 4.x, 5, SDS 4.2, SVM, LVM

Web Server: Apache 1.3.x, 2.x, Sun One Web Server 6.x

Application Servers: Web Logic 6.x, 7.x, 8.x and 9, JBoss 3.x, 4.x, 5.x

Database Servers: Oracle 8i, 9i, 10g, SQL Server 2000 & 2005, Sybase

Network: NIS, NIS+, DNS, DHCP, Telnet, FTP, Rlogin

Networking Hardware: CISCO Switches and other routers

Network Protocols: FTP, SFTP, TCP/IP, NetBEUI, PPP, SNMP, SMTP, DNS, NFSv2, NFSv3, FTP and HTTP

File Systems: UFS, VxFS, ext2, ext3, NFS, ZFS

Tools: SMC, Glance, SAM, Puppet, Chef, Nagios, Perl, bash, ksh

Cloud Environments: Amazon Web Services (AWS, EC2, VPC), Open stack, Azure

EXPERIENCE

Motorola, Chicago, IL March 2015 - Present.

UNIX/DevOps Engineer

Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers using Kick Start server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.

Automation of configuration and management through Puppet.

Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to existing infrastructure.

Launching and configuring of Amazon EC2 Cloud Servers using AMI’s (Linux/Ubuntu)

Involved in developing custom images on Cloud using AWS images and on ESX using Templates and involved in building physical servers using Kickstart PXE Boot and Jumpstart

Installed Puppet client software on RHEL 6.x servers and established a communication between master and client through SSL certification.

Experienced in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.

Installed & configured Nagios on Linux & Solaris servers.

Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL 465C G5 blade centers).

Pushing all configuration management into Chef to allow for rapid roll-out of new infrastructure.

Experience with Virtualization technologies like Installing, Configuring, and Administering VMware ESXi 4.1/5.0/5.5 environments. Created and managed VMs (Virtual Server) and also involved in the maintenance of Virtual Servers.

Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.

Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage on 2,3,4 node clusters.

Worked on Open stack (Havana) installing, configuring, administering virtual machines, creating security groups, add resources, tenants.

Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.

Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes.

Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets.

Set up Jenkins server and build jobs to provide continuous automated builds based on polling the Git source control system during the day and periodic scheduled builds overnight to support development needs using Jenkins, Git and JUnit.

Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.

Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.

Developed automated processes that run daily to check disk usage and perform clean up of file systems on UNIX environments using shell scripting and CRON.

Worked on day to day administration tasks and resolve tickets. Also have worked on solving the issues for Severity1 & 2 tickets.

Incident management for Unix Servers (Solaris, Linux).

Extensive use of Korn shell, Bash for scripting

Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.

Involved in migration of projects from one flavor to another one.

Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.

Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.

Implemented the monitoring tools like Nagios to monitor services like CPU, Hard Drive, Memory, Users, HTTP, SSH, etc.

Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 5.5 and migrating servers between ESX hosts.

Creating profiles, manifests for new servers, and pushing them to servers using puppet.

Worked on KVM, installing, configuring Linux VMs.

TIAA CREF/HCL, Charlotte, NC Aug, 2013 – March, 2015.

UNIX/DevOps Engineer

Installation, configuration and administration of RHEL 5.0/6.0, Solaris 9/10, AIX 5.3/6.1 and SUSE 10.x.

Deployment and management of many servers via script and chef, utilizing cloud providers as a direct substrate for implementation

Installed & upgraded patches, firmware (OBP), and security (Kernel) patches for all applications in installed infrastructure.

Configured kick-start server and updating/applying patches to the servers using Red hat Satellite server.

Experience working in AWS Cloud Environment like EC2 & EBS.

Server configuration management via Puppet.

Managed and configured hundreds of servers using Puppet.

Experience in monitoring of servers using monitoring tools Nagios Blade logic.

Troubleshooting and administering High Availability using VERITAS Cluster Server on various business critical database & application production servers

Monitoring system resources, logs, disk usage, scheduling backups and restore.

Configuring SUDO and granting root permission to users for performing certain activities.

Worked with VERITAS Foundation Suite 5 and performed tasks like creating disk groups, volumes, initializing disks, replacing failed disks etc.

Used VxVM to add disk, create new disk groups/volumes, re size, deport and import disk groups between servers.

Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.

Jumpstarting Solaris 9, 10 on Sun servers, configuring servers. Configured/Maintained Zones, LDOMs, ZFS file system Sun Solaris 10 Servers.

Shell scripting to automate the regular tasks like removing core files, taking backups of important files, file transfers among servers.

Performed capacity analysis, monitored and controlled disk space usage on systems.

Monitored system activities and fine tuned system parameters and configurations to optimize performance and ensure security of systems.

Experienced in troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.

Created Zeta byte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.

Installed and configured VERITAS Net Backup and TSM on Red Hat Enterprise Linux.

Created volume groups, logical volumes, extended logical volumes based on the requirements using Logical Volume Management (LVM), SVM, ZFS and VERITAS commands.

Installation and Configuration of Red Hat Enterprise Linux 5.x and Solaris 9/10 operating systems on large distributed environment. Installing, testing and patching existing RPM’s.

Creating virtual machines using Xen, KVM hypervisor on Xen servers, installing Red-hat, Cent OS using kick-start and Cobbler.

McGraw Hill Education, Hightstown, NJ Sep 2012 – Jul 2013

Linux/Solaris Administrator

Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers using Kick start server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.

Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, Web Sphere and Web logic application server.

Installation, configuration and administration of VMware, Solaris Zones, Containers and LDoms.

Troubleshooting networking issues sand Creating, Mounting and Troubleshooting NFS File systems on different OS platforms of LINUX and SOLARIS.

Experience in installation, configuration, tuning, security, backup, recovery and upgrades of LINUX and SOLARIS.

I have supported migration project in troubleshooting different issues while relocating the LINUX and Solaris servers to a different location.

With the help of VERITAS Clustering, implemented and monitored clustering on SPARC servers.

Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.

Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.

Worked on creation of LDOMs on T2000 servers and Zones on Solaris 10 servers.

Using live upgrade, I have upgraded Solaris servers from 8, 9 to 10.

Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.

Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.

Adding servers to domain and managing the groups and user in AD, installing and configuring send mail.

Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts.

Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.

Performed performance analysis using tools like prstat, mpstat, iostat, sar, vmstat, truss, Dtrace.

Used Sun Volume Manager for Solaris and LVM on Linux to create volumes with layouts like RAID 1, 5, 10, 51.

Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance.

FedEx, Collierville, TN Jan 2011 – Aug 2012

Linux/Solaris Administrator

Automated provisioning of OS and patching using HPSA. Deployed Software to target servers using HPSA software policies. Performed Compliance and Remediation tasks in HPSA.

Managed users and group in a PCI/SOX compliant account management system for UNIX and Unix-like operating systems. Managed sudo rules and pushed ssh keys (public and private).

Executed the tasks related to User Administration (Mkacct), Server Build (Using HPSA), Server Decommissioning, DNS registrations & Hostnames allocation.

Worked on Monitoring Tools, Backup, SAN & other OS tools (Using HPSA or manual), Troubleshooting & performing OS specific Generic tasks & various other customized System administration & Management.

Provided total computer system infrastructure and operations support for mission critical distributed systems facing the customer which required maximum protection from computer crime or accident and 100% availability.

Responsible for the specification, design, building, installation, implementation of production devices, their operating systems and support environments.

Provided 24x7x365 support of production systems running on Linux to assure 100% systems availability to FedEx customers.

Worked and supported blade logic server automation which was mainly about enabling automated OS deployment and provisioning on all Dell servers.

Using blade logic, I have configured the BIOS, RAID and Integrated Dell Remote Access Controller (iDRAC) hardware in preparation for bare-metal OS deployment and driver provisioning.

Developed and maintained processes and systems for software management and distribution on TCP/IP-connected distributed systems.

Provided internal consulting to the corporation on strategic and tactical issues concerning UNIX® and distributed systems.

Created file systems as per user requirements and extended logical volumes on Red Hat Enterprise Linux

Upgraded and maintained Software Packages on Servers and Workstations.

Interacted with the users on a daily basis, decreasing downtime and increasing user productivity.

Assisted in resolving hardware issues and network connectivity issues related to TCP/IP.

Part of transition team as the delegations were moved to another domain.

Verizon, Chennai, India Sep 2009 – Dec 2010

Linux/Solaris Administrator (Off shore)

Installation and Configuration of Red Hat Enterprise Linux 5.x and Solaris 8/9/10/11 operating systems on large distributed environment. Installing, testing and patching existing RPM’s.

Supported VERITAS Cluster 5/6 environment with 2 & 4 nodes and running Database and SAP applications.

Responsible for daily activities which included administration and maintenance of Enterprise and Advanced Servers (ES/AS) running Red Hat Enterprise Linux.

Provided Administration support for server running on RHEL, AIX and Solaris at other facilities and also involved in migration activities like p2p & p2v.

Installed and Configured Red Hat Enterprise Linux 5.2 in Dell Power Edge 2970 and R905, Involved in System Analysis and Performance Monitoring of Red Hat Linux.

Implemented and monitored clustering on SPARC servers using VERITAS Clustering.

Supported DNS, Open LDAP and Performed User Account creation, assigning access permission, creating user quota by using Shell scripts.

Installed and configured VERITAS Net Backup and TSM on Red Hat Enterprise Linux.

Creating volume groups, logical volumes, extending logical volumes based on the requirements using Logical Volume Management (LVM), SVM, ZFS & VERITAS commands.

Upgraded Oracle Web Logic servers from 9.0 to 11g on Linux based servers.

Backup and restoration of Progress Database servers using SQL scripts.

Installed and upgraded servers using the security patches and service packs released.

Installed Red Hat Enterprise Linux over the network using Kick start Installation and Solaris using Jumpstart.

Installed and Configured Multiple OS using VMware ESXi on Dell using Virtual Center Server and VI client.

Configured NFS and Open LDAP services in Red Hat Linux and Solaris systems.

Performed troubleshooting of various bottlenecks including those found in the CPU and memory using system and network monitoring tools.

Upgraded RHEL 4.x to 5.x and involved in upgrading SSH running on the servers.

Monitored system performance using sar, prof, vmstat, iostat, netstat, Nagios.

Tuning the kernel parameters based on the application/database requirement.

Monitoring system resources, logs, disk usage, scheduling backups and restore using Nagios and VERITAS Net backup

Created project report and wrote technical document for various projects.

Spurti Technologies Jan 2007 – Aug 2009

Linux/Solaris Administrator (Off Shore)

Installing and upgrading Solaris 9 and Solaris 10 on T2000s, Sun Fire v490, v440, v490, x4200, E2900, E4900, E6900, M5000, M8000 and RHEL 4.x, 5 on HP DL 380 G5

Creating sparse root and whole root zones and administered the zones for Web, Application and Database servers and worked on SMF on Solaris 10.

Implemented and administered VMware ESX 3.5/4.1 for running the Solaris x86 and Red hat Linux Servers and performed migration activities from p2v.

Implemented Jumpstart for Solaris and Kick start for Red hat environments to build Linux VM’s and Solaris Zones and LDoM’s.

Using live upgrade to upgrade Solaris servers from 8, 9 to 10.

Implemented HA using VERITAS Cluster Server 5.0 for Web Logic agent.

Managing DNS, NIS, Open LDAP servers and troubleshooting the servers.

Worked with VERITAS Foundation Suite 5 and performed tasks like creating disk groups, volumes, initializing disks, replacing failed disks etc.

Used Sun Volume Manager for Solaris and LVM on Linux to create volumes with layouts like RAID 1, 5, 10, 51.

Re-compiling Linux kernel to remove services and applications that are not required.

Experience configuring ftp, sftp, DNS on RHEL servers.

Involved in asset inventory using BMC tools.

Upgraded Clear-Case from 4.2 to 6x.

Patching of OS on mirrored servers after detaching and re-attaching the sub-mirrors.

Used HP Service center and change management system for ticketing.

Worked on the administration of the Web Logic 9, JBoss 4.2.2 servers including installation and deployments.

Worked on F5 load balancers to load balance and reverse proxy Web Logic Servers.

Shell and Perl scripting to automate the regular tasks like removing core files, taking backups of important files, file transfers among servers using perl, bash and ksh.

EDUCATION

Bachelors, Electrical and Electronics Engineering, JNTU.

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