PROFESSIONAL SUMMARY:

• 8+ years of Linux/Unix Administration comprising of AIX 5.3, 6.1, Solaris 9, 10, Red Hat Linux
• Leading a strong technical team of five resources at client’s offshore location
• Good communication skills, interpersonal skills, analytical, documentation skills, self - motivated, quick learner, team player.
• Worked extensively on production and non-production servers to make them complaint as per SOX,PCI and PII standards
• Co-ordinating with client to get business requirements and converting those requirements into technical steps.
• Performed OS upgrades on approx. 500 AIX, Solaris and Linux Production/Non-production servers including upgrades on HACMP production clusters without any incidents.
• Installation and configuration of LPAR’s with AIX 5.3 and 6.1 on p5 and p6 servers.
• Performing Performance Maintenance tasks, Memory Management, User Space Management, File System Creation tasks
• Managing System backups and Storage Management.
• Had a good knowledge and worked in Virtualization Platform.
• Creating, maintaining of user accounts locally and using ldap, user administration, local and global groups on Solaris and Red Hat Linux platforms.
• Managing LVM and File systems, SRC, Paging space management, restore and availability
• Extensive experience with LVM, NIM, User & System Resource Management, Job Scheduling and Paging Space Management
• Installing application software on AIX 5.3 / 6.1 Boxes, Upgrading the Maintenance Levels as per application requirement
• Administering and troubleshooting of AIX HACMP Cluster, NIM and mksysb
• Implementing and managing resources in VIO server
• Understanding
• Strong scripting knowledge (ksh, bash) to perform administration and automation tasks
• Day to day administration and automation of the Development, Production and Test environment systems

TECHNICAL SKILLS:

Operating Systems: Redhat Enterprise Linux 3/4/5/6x, IBM AIX(4.3,5.1, 5.2, 5.3), VMware ESX 3x, 4x, OEL 4/5/6, CentOS, Windows, Sun Solaris 7,8,9 & 10, SUSE.

Hardware: IBM x-series Servers, HP ProLiant, Dell PowerEdge, HP C7000 & IBM, Blade centers, Cisco UCS

Languages: C, C+, Java, HTML, BASH scripting.

Networking Tools: NIS, NFS, DNS, TFTP, Ethernet (10/100Base T, Coax, Thick, Fiber optic, Giga Bit Cards), Fast Ethernet switches, Load Balancers, Network monitoring, Communication

Protocols: TCP/IP, SNMP, SMTP, OSI, DHCP, TCP Wrappers.

PROFESSIONAL EXPERIENCE:

Confidential, Rochester MN

Sr. Unix Administrator

Responsibilities:

• AIX 5.3, 6.1 System Admin
• OS Security Patches and Additional Software updates installation including SSH/SSL
• Vulnerability remediation of Qualys Vulnerability scans and helped client achieve 100% compliance quarter after quarter.
• Analysing Qualys Vulnerability scan report and doing research, testing and documentation of unknown vulnerabilities.
• Vulnerabilities Remediation, validation scanning and MSB Remediation
• System backups management
• Building Application hosting AIX servers, VIO Servers
• Installation and configuration of LPAR’s with AIX 5.3 and 6.1 IBM eServer pSeries p7, p6 and p5 Servers
• Capacity upgrade to the existing systems dynamically through HMC for physical adapters, memory, cpu
• Upgrade Hardware Management Console (HMC) firmware and software
• Worked extensively on production and non-production servers to make them complaint as per SOX,PCI and PII standards
• Performed OS upgrades on approx. 500 AIX, Solaris and Linux Production/Non-production servers including upgrades on HACMP production clusters without incidents.
• Installation of the operating system and applications on AIX using NIM installation method by creating NIM master and client with lppsource and spot
• Performed OS Migration from AIX 5.3 to AIX 6.1 using nimadm method
• Installation, configuration and administration of VIO server and VIO client LPAR’S via HMC
• Assigning disks, Ethernet adapters and SCSI adapter to VIO Clients through VIO servers
• Assigning disks to VIO Clients by NPIV
• Configuration and upgrade of HACMP, performing failover and fallback of HACMP Clusters on a regular basis as per the application requirement
• Worked with DBAs for supporting Oracle 9i / 10g / 11g / Raid configuration database maintenance activity on Dev / UAT / Prod Servers
• Worked on Multipathing Software EMC Powerpath
• Developed scripts to make AIX, Solaris and Linux servers compliant and also generate evidences to show present configuration of server as per MSB (CIST-0027) standards
• Brought client environment from red to green from compliance point of view in few months and got numerous client appreciations both verbal and in emails.
• Experience in writing, updating and proofing documents and procedures

Confidential, Princeton NJ

Linux Systems Administrator

Responsibilities:

• Involved in installing and configuring operating system Red hat Enterprise Linux in Production, QA and test environments on standalone IBM servers and IBM Blade Center Hardware
• Configured Kickstart for RHEL 5 to perform image installation through network
• Worked with Red hat Linux tools like RPM to install packages and patches and managed virtualized OS
• Worked with Puppet to Automate platform with the help of configuration management
• Worked on software development tools environment with JIRA to track the project.
• Experience in deploying packages, creating RPMS, installing script files, adding users and groups, creating logical volume
• Worked on SAN/EMC storages with HBA card configuration and different level of RAID configuration.
• Worked on network connectivity, SAN storage, creating LVM and taking TSM backup
• Administered Linux servers for several functions including managing WebSphere, Apache/Tomcat server, mail server, Oracle database and build firewalls in both development and production
• Creating, managing user accounts and group and creating files and directories permission
• Co-ordinate with Middle ware team in installation, configuration and troubleshoot issues with WebSphere Application Server and Apache/Tomcat server on Linux
• Installed/Configured/Maintained/Administrated the network servers DNS, NTP, NFS, SENDMAIL, SYSLOG and application servers Apache, WebSphere, Web logic, and Samba server
• Extensively worked with the LAN/WAN, firewalls and routing for Internet and Intranet connectivity using different protocols like TCP/IP, DHCP, HTTP/s, FTP, SMTP & SSH
• Involved in TSM back up, netcool monitoring, ESP scheduling, DMZ firewall rules, configure iptables and iptables init script, start and stop init script for Apache and other application server
• Created korn shell scripts to automate cron jobs system maintenance. Scheduled cron jobs for job automation
• Modifying user’s password policies, group policy, UID and GID assignment policies
• Monitored the performance of the system using top, sar, ps, prstat, vmstat, netstat, iostat and cpuinfo to check the CPU utilization, bottlenecks of I/O devices, memory usage and network traffic
• To troubleshoot network connectivity used ping, netstat, Arp, dig, ifconfig, and trace route commands. To login to the remote system used sudo, putty and telnet. To transfer files across the systems on the network used ftp and scp commands
• Checking the Remedy tool for tickets on software/hardware problems
• Linux technical support and prepared technical documentation for check in verification
• Regular backing up of critical data and restoring backed up data

Confidential

Systems Engineer

Responsibilities:

• System Installation and configuration (RHEL, Solaris, Windows Servers)
• Account,user and group administration, Permissions policy management and quota implementation.
• Systemperformance monitoring, tuning andlog management worked with source repository SVN for code base.
• Performed continuous integration through Jenkins platform.
• TCP/IP Networking troubleshooting and Linux Network Administration
• Installation, configuration, support and security implementation on following services:
• Management of Firewall, iptables
• Implement and maintain server virtualization using VMware
• Installation and configuration of database systems e.g. MySQL, Oracle
• System monitoring and remote connection management usingtelnetandSSHconnections
• Experience is setup Storage area Network (SAN) and NAS and file systembackup and restore
• 24x7 on-call rotation for support of production systems

Confidential

Linux Administrator

Responsibilities:

• Configuring RedHat Linux 5 with RedHat Clusters for High Availability
• Installing new and/or rebuilding existing servers and configuring hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards, project and operational requirements
• Install and Configure SSH, VNC Server and Client.
• Configure LVM, extend and reduce Volumes.
• Install and configure FTP and sharing files.
• Configure LDAP & NIS server and client.
• Install and Configuring Samba Share and Samba Server.
• Install and configure Network File Sharing NFS.
• Configuring network installation through Kickstart and Yum Server & Client.
• Samba server configure and sharing for Windows environment.
• Install and configure DNS Server.
• Configuring TCP WRAPPERS.
• Deployment and administrative of repositories by using of python Scripting.
• Configuring the cronjob scheduling.
• Applying operating system updates, patches, and configuration changes
• Installing, performance tuning, system monitoring and managing Linux systems
• Maintaining system security & applying security policies
• Maintaining business data, security and archiving processes
• Managing backups & system recovery procedures
• Analyzing system logs and identifying potential issues
• System performance monitoring & optimization
• Troubleshooting any reported problems escalated from IT team
• Automation of server maintenance tasks
• Install software, apply patches, manage file systems, monitor performance and troubleshoot alerts from the monitoring tools.
• Provide technical leadership and hands on management Linux environment.
• Responsibilities for all aspects of Linux administration including monitoring, backup and recovery, security, performance management and any project related activities
• System failure analysis and recovery; insuring the consistency and integrity of file systems.
• Hardware /software configuration; and management
• Managing implementing backup and recovery strategies