PROFESSIONAL SUMMARY:

• Over 7 years of System Administration experience in Installation, Configuration, Customization, Management and Administration of RHEL 4/5/6, Sun Solaris 8/9/10/11, SUSE Linux and Windows
• Performed Installs, Upgrades, Patches, Configuration, Performance tuning on UNIX and system software & hardware.
• Managed Patches, Upgrades and Licensed Products for System software on all flavors of UNIX and Linux Servers.
• Over 3 years of experience in automating, configuring and deploying instances using Chef, Puppet in Data centers.
• Well experienced in hands on, Kickstart (PXE) and Jumpstart installation of various fully and mostly POSIX compliant systems like Red Hat 4, 5 &6, Cent OS 5 &6 and open SUSE 11 & 12.
• Expertise to handle tasks in Red Hat Linux includes upgrading RPMS using YUM, kernel, HBA driver, configure SAN Disks, Multipathing and LVM file system.
• Expertise with automating the provision of OS by using Jumpstart for Solaris and Kickstart for Redhat
• Highly experienced in installing and configuring Volume Management by using Veritas Volume Manager (VxVM)
• Hands on experience in installing and administrating CI tools like Hudson, Jenkins
• Expertise in using build tools like MAVEN and ANT for the building of deployable artifacts such as war & ear from source code. Application Deployments & Environment configuration using Chef, Puppet.
• Experience working Data Center’s managing Servers, SAN and NAS devices like Cisco, Brocade, EMC and HDS devices.
• Good Knowledge in Shell, Bash, Ruby, Python scripting.
• Experience in Server monitoring, capacity planning, application monitoring with the help of Nagios, Cacti, Puppet, Taylor nk
• Managed Amazon Web Services like EC2, S3 bucket, RDS, EBS, ELB, Auto - Scaling, AMI, IAM through AWS
• Services/Packages using Chef as well as AWS for EC2/S3/Route53 & ELB with Chef Cookbooks.
• Experience in branching, tagging and maintaining the version across the environments using SCM tools like GIT, SVN on Linux platforms
• Setting up and configuring database in AWS using S3 and backups into S3 bucket.
• Managed Data Backup using AWS S3 and Glacier
• Experience using cloud providers and API's for Amazon (AWS) with CloudSigma(EU).
• Created Cloud Formation templates to launch the stacks and configure automated instances
• Expertise to handle tasks in Red Hat Linux includes upgrading RPMS using YUM, kernel, HBA driver, configure SAN Disks, Multipathing and LVM file system.
• Knowledge of databases like MySQL, Oracle 10g/11g, MSSQL, MongoDB, DynamoDB
• Experienced in Solaris Volume Manager (SVM) in Solaris and Logical Volume Manager (LVM) in Linux
• Experienced in installing, managing Esxi 4.x and 5.x. ( VMware barebone-guest OS)
• Hands on experience in RedHat Clustering and Veritas Cluster Server 4.0, 5.0.
• Experienced in installation of Packages and Patches in both RedHat Satellite Sever and Solaris Server.
• Hands on experience in creating and managing all kind of file systems like VxFS, ZFS, Ext3, Ext4, UFS.
• Created Logical Volumes, Logical Volume Groups and manipulated them as required.
• Configured Raid-0, Raid-1, and Raid-5 in order to combine and mirror the disk space of storage devices.
• Comfortable in working with backup and recovery suite like Veritas Netbackup and performing Disaster recovery and patching.
• Moving RHAS machines from physical to virtual including VMware ESX 3.5 and VSphere 4.0
• Wrote several ansible playbooks to build process to automate GIT code repositories and Created a VM’s template for specific image and size with necessary software that are supposed to be in the VM.
• Worked on monitoring tools such as Nagios, Splunk, ELK Stack (Elasticsearch, Log stash, Kibana), check mk.
• Updated logstash in Stage and Prod environment to point to the new ELK servers with new configuration files
• Installing and upgrading VMware tools on client machines Experience working in NFS/NAS, Storage Area Networks (SAN), SSA disk storage environment
• Experienced in working with NIS, NIS+, LDAP, NFS, Sendmail, Weblogic, DNS, DHCP Server, and TCP/IP services.
• Performing User Administration and Hardware setup and support of Storage and managed paging space. Experience in systems programming (Ruby, Python, Bash)
• Experience in deploying and managing virtualization technologies (ex. Vmware or KVM)
• Hands on experience in installation, configuration and support of Websphere, JBOSS, Tomcat, Squid, FTP, Apache Web server, LDAP and mail server.
• Highly experienced on installation and configuration of automating tool like Puppet and Chef master server
• Deploing chef books for managing the Cookbooks
• Efficiently used IAM roles and resources to comunicte with the AWS users and resources
• Experienced in round the clock service (24/7), and on call support.
• Ability to lead technical discussions and projects in an organized manner
• Ability to document strategies and designs and present these ideas to management with cost/benefit analysis
• Strong interpersonal skills, including both written and verbal communications.
• A highly motivated and skilled system administrator with good experience having knowledge on RHEL based administration, build tools, and configuration management.
• Good troubleshooting and system administration abilities with migrations, network connectivity, and security and database applications.
• Expert knowledge of SCM concepts like branching, merging, integration and versioning.
• Can work troubleshoot build and mitigate problems as they arise & work closely and resolve issues.

TECHNICAL SKILLS:

Hardware: Intel Based Servers/PCs, Dell/ HP servers and PCS. Sun Ultra 5/10/60, Sun Enterprise (E250/450, 5000, 6500),Sun A1000/D1000/3310FC Array, Netra T1, Sun Fire (280R, 420R, V210, V240, V250, V440, V480, V490, V880, V890),Linux Server, DellPowerEdge 6300/500

Operating Systems: Linux (Red Hat 4.x, 5.x, 6.x, SUSE 9,10,11, Unix-Sun Solaris 8,9,10,11 VMware ESX 3.5,4.0, Ubuntu 10.04/12.04, AIX 5.x, 6.x, 7.x

Programming Languages: C, C++, Unix Shell scripting ( - ksh, Bash and csh), Python, Perl and Ruby scripting, HTML, PL/SQL

Networking Environment: NFS, AutoFS, NIS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP

Disk Management: Logical Volume Manager, Veritas Volume Manager 4x, 5.x, 6.x, Solaris Volume Manager

Databases: MySQL, Oracle 10g/11g, MS SQL

Monitoring Tools: Nagios, Tivoli, snmp, splunk, Xymon

Build Tools: Hudson/Jenkins, TeamCity, Sonar, Maven, ANT and NANT

Configuration Management: Chef, Puppet,GIT, Docker

Web/Application Servers: JBoss4.x, 5.x, Web Logic 8.x, 9.0, 10, WebSphere 5.x, 6.x, Apache Server 1.3.x, 2.2.x, Apache Tomcat 5.x, 6.x, 7.x

AWS (Amazon Web Services): EC2, EC2 Container Service, Lambda, S3, ELB, Elastic Beanstalk, Elastic File System, RDS, DMS, VPC, Route53, Security Groups, Cloud Watch, Cloud Trail, Cloud Formation, IAM Rules, SNS, SES, Redshift, Migration (DMS, Snowball, server migration)

PROFESSIONAL EXPERIENCE:

Confidential, Raleigh, NC

System administrator

Responsibilities:

• Build, manage, and continuously improve the build infrastructure including implementation of build scripts, continuous integration infrastructure and deployment tools.
• Administrated Jenkins for Continuous Integration and deployment into Apache Tomcat Application Server.
• Wrote scripts in Python & Shell scripting to customize build baselines, branching, merging, and automation processes across the environments using SCM tools like GIT and SVN.
• Deployed Puppet for configuration management to existing infrastructure and Configured store configs using puppet DB and check mk.
• Deployed and configured Nagios and to monitor system related metrics.
• Experienced in Administration of Production, Development and Test environment’s RHEL environment.
• Expertise in build and deployment automation using Vagrant, VMWare ESX.
• Provisioning new instances on AWS cloud using Ansible, shell, Terraform
• Integrate Linux System Center with Azure and AWS, Create Azure virtual machines in Azure and AWS, Set up domain controllers in Azure and AWS.
• Building/MaintainingDockercontainer clusters managed by Kubernetes,Linux, Bash, GIT,Docker, on GCP.
• Utilized Kubernetes andDockerfor the runtime environment of the CI/CD system to build, test deploy.
• Installed MapR clients and various Hadoop eco-systems using Ansible.
• Creating, cloning Linux Virtual Machines, templates using VMware Vsphere 4.0 and migrating servers between ESX hosts.
• Installation and management of PowerBroker clients and Auth Servers.
• AWS server provisioning using Chef Recipes.
• Perform periodic file system GPFS tuning and monitoring jobs to enhance system/complex performance.
• Configuration of SAN disks using LVM on Linux, Veritas on Solaris Servers
• Applied appropriate support packages to maintain system integrity.
• RPM and YUM package installations and other server management.
• Checking the quality, security and performance of the customer's applications.
• Upgrade Servers from RHEL 5 to RHEL 6.
• Using Jenkins AWS Code Deploy plug-in to deploy to AWS
• Knowledge of Network Infrastructure including VPNs, Routers, Firewalls, load balancing and Switches.
• Used shell scripting, Ruby, Python and PowerShell for setting up baselines, branching, merging, and automation processes across the environments using SCM tools like GIT and SVN.
• Experience in working with GIT to store the code and integrated it to puppet and Foreman.
• Build, manage, and continuously improve the build infrastructure for global software development engineering teams including implementation of build scripts, continuous integration infrastructure and deployment tools.
• Experience inshell scriptingand scheduling jobs usingcronand Jenkins. installation ofOracle 10g Application serverwith Building and Rebuildingindexes when needed to avoid fragmentation and improve performance,monitoring index usageand removing unused indexes.
• Experience with performance and diagnostic tools for benchmarking, analysis and tuning of systems, networking and storage.

Environment: Linux, AIX, Solaris, AS400,Linux, Windows, IBM i (i5/OS, OS/400) VMWARE 3.5 and vSphere 4.x/5.x, EMC Power Path, 2,3, 5 and 10 Node Veritas Clusters, VMware ESX Server 4.x/5.x, LDOM, IBM p6, p7, p8, Docker, Putty, Remote Desktop, Tivoli, RAID, VIO, LPAR, SAN, AWS, Azure, Nagios, Ansible Tower, Hadoop, GPFS, Powerbroker, NetBackup.

Confidential, Columbia, MD

Linux Administrator

Responsibilities:

• Installed, Configured and Maintained Red Hat Linux (Red Hat Enterprise Linux 4.x, 5.x & 6.0) on SPARC, x86 and Blade Centers.
• Supported Red Hat servers in Production, Test and Development environments.
• Worked on Virtual Zing Red Hat servers using v Sphere 4.1/5.0 and managed ESX servers using v Center and also worked with ESX Cluster and vMotion.
• Worked on Installation/Configuration/Administrated VMware ESXi 5.1/5.5 & 6.0 and migrated existing servers into VMware Infrastructure
• Migrated VMWARE VMs to AWS and Managed Services like EC2, S3 Bucket, Route53, ELB, EBS Etc
• Managing infrastructure with automation and configuration management tools such as Chef, Puppet.
• Monitoring cluster status by using Ganglia, Nagios and our monitoring scripts.
• Installing Load Balancers and VPC with Public and private subnets.
• Launching Amazon EC2 Cloud Instances using Amazon Images (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
• Installed and Configured RedHat Linux Kickstart and booting from SAN.
• Installing Chef, Jenkins and Openstack, Integrating Jenkins with VMware, Open stack and Chef.
• Writing manifests to install and updating configurations related to OS and Applications.
• Experience in writing scripts to automate jobs and debugging scripts.
• Experience in configuring monitoring tools like Nagios.
• Involved in installation and supported of various applications like Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands
• WebLogic server 10, WebSphere 6.1 JBoss 4.x, Apache 2.x, Oracle 9i, 10g, MySQL.
• Deploy and monitor scalable infrastructure on & configuration management using Chef.
• Setup and Configuration of Chef Configuration Management.
• Administration of Web Application Servers and performing tunings for better performance.
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues. Installed, Configured and Maintained Red Hat Linux (Red Hat Enterprise Linux 4.x, 5.x & 6.0) on SPARC, x86 and Blade Centers.
• Supported Red Hat servers in Production, Test and Development environments.
• Worked on Virtual Zing Red Hat servers using v Sphere 4.1/5.0 and managed ESX servers using v Center and worked with ESX Cluster and vMotion.
• Created AWS VPC network for Installed Instances and configured the Security Groups and Elastic IP's accordingly.
• Migrated VMWARE VMs to AWS and Managed Services like EC2, S3 Bucket, Route53, ELB, EBS Etc
• Managing Amazon Web Services (AWS) infrastructure with automation and configuration management tools such as Puppet.
• Monitoring cluster status by using Ganglia, Nagios and our monitoring scripts.
• Configured the Route 53 DNS and load Balancers for the VPC and the NACL with inbound and outbound Rules.
• Installing Load Balancers and VPC with Public and private subnets.
• Launching Amazon EC2 Cloud Instances using Amazon Images (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
• Kerberos and Apache Knox security implementation.
• Responsibilities include designing and developing new back-end services, maintaining and expanding our AWS infrastructure, and providing mentorship to others on my team.
• Installed and Configured RedHat Linux Kickstart and booting from SAN.
• Configuration and administration of Fiber Card Adapter’s and handling of SAN (SAN arrays, HITACHI, EMC).
• Installing chef, Jenkins and Openstack, Integrating Jenkins with VMware, Open stack and chef.
• Writing manifests to install and updating configurations related to OS and Applications.
• Experience in writing scripts to automate jobs and debugging scripts.
• Experience in configuring monitoring tools like Nagios.
• Deploying Openstack components on multimode with High availability environment
• Configuring Openstack keystone, glance, cinder, swift
• Integrated Openstack (Ice house) with Openstack to create software-Defined-Networking tenant and service provider network and routers.
• Implemented automated local user provisioning in instances created in Openstack cloud.
• Experience in using protocols like NIS, NFS, SSH, SFTP & DNS.
• Installation and support of various applications like WebLogic server 10, WebSphere 6.1 JBoss 4.x, Apache 2.x, Oracle 9i, 10g, MySQL.
• Responsible for provisioning, maintaining and improving upon server infrastructure, split between physical data centers and AWS
• Administration of Web Application Servers and performing tunings for better performance.
• Performed OS, Network tunings on the Apache and Nginx web servers.
• Performed VMotion based on the esxi health checks.
• Constructed a variety of internal monitoring/investigative tools using Java and PHP, in my spare time; and maintained other internal tools written in Perl, Python and Ruby
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.

Environment: VMware ESX 4.x, 5.x, Docker, Chef, Puppet, RedHat 4.x, 5.x, 6.x, SuSe 10, 11, IBM x3650,IBM HS22 Blade Center, IBM x232,IBM x236,T2000, T5120, E220, E420, 450, V240, V880/890,E3500, HP BL460c, Veritas NetBackup, Cisco UCS.

Confidential, Pittsburgh, PA

Linux Engineer

Responsibilities:

• Building Physical as well as Virtual (VMware) Servers.
• Mass Build of Linux OS servers using kickstart /jumpstart automation application.
• Installation of Oracle 11g and Sybase open-client, Apache 2.x on Linux environment.
• Worked on Installation/Configuration/Administrated VMware ESXi 5.1/5.5 & 6.0 and migrated existing servers into VMware Infrastructure
• Deploy Redhat Enterprise/OEL Linux 5.x/6.x/6.2 using Kick start installations & implement Redhat 6.x/7 also Build and configured migrations of Linux (V2V, P2P and Lift and Shift on RHEL 6.x/7)
• Develop, Architect, and Deploy Splunk in large AWS Linux environments.
• Integrate Splunk with a wide variety of legacy data sources.
• Experience with Splunk Searching and Reporting, Knowledge Objects, Administration, Add-On's, Dashboards, Clustering and Forwarder management.
• Install new / rebuild existing servers and configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements.
• Build and configure a virtual data center in the Amazon Web Services cloud to support Enterprise Data Warehouse hosting including Virtual Private Cloud (VPC), Public and Private Subnets, Security Groups, Route Tables, Elastic Load Balancer.
• Design AWS Cloud Formation templates to create custom sized VPC, subnets, NAT to ensure successful deployment of Web applications and database templates.
• Install, configure and administer log analyzer tool CloudWatch Automated the release pipeline to achieve zero touch deployments using Jenkins, Hudson
• Design roles and groups for users and resources using AWS Identity Access Management (IAM).
• Written Cloud formation templates and deployed AWS resources using it.
• Provide highly durable and available data by using S3 data store, versioning, lifecycle policies, and create AMIs for mission critical production servers for backup.
• Worked on building data center with AWS. Installed SVN, GIT, Hudson/Jenkins images on AWS.
• Got hands on deploying the content cloud platform on Amazon AWS using EC2, S3, and EBS, ELB, SNS, SQS services.
• Setup Amazon RDS for database integrations, MySQL. Set up MongoDB, CoucheDB with elastic search on lightweight Docker containers for easy and quick indexing services.
• Automating builds and deployments using ANT/ NANT scripts and perl/shell scripts.
• Delivered specific versions of various components of an application into target environments.
• Monitored/maintain/trace inventory using nagios and set alerts when the servers are full and need attention.
• Developed build and deployment scripts using ANT and MAVEN as build tools in Jenkins to move from one environment to other environments.
• Installation and configuration of tomcat and Apache Web Server
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat etc.) and tuned I/O, memory, etc.
• Maintained proper documentation of all the activities carried out during the project.

Environment: Red Hat Enterprise Linux 6.x,7.x,8, Solaris 8, 9, VERITAS Cluster Server, Chef, VERITAS Volume Manager, GIT, Hudson/Jenkins, shell, Oracle 11g, HP UX, MS Windows Server, JBoss, Tomcat, Apache, Weblogic

Confidential, Golden Valley, MN

Linux Administrator

Responsibilities:

• Installed and configured several hundred Red Hat Blade and VMware Esxi 4.x Virtual Environment.
• Configured Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes.
• Assisted in physically installing, racking and cabling new BM Blade Center Sand Cisco UCS 5108 Chassis environment
• Installing and configuring Red Hat Enterprise Linux 5, 6.1 using kick start servers and virtual
• Media based installs on several hundred Cisco UCS B 0 and BM Blade Center S asrequired for UAT/Production Oracle Web logic. Red hat JBoss, Oracle Enterprise Database and MySQL Database Server requirements
• Responsible for installation, Configuration and administration of Oracle10g/11g database on SCO Unix, Linux and Windows 2003 Servers and also an integral part of the backup and recovery.
• Installing and updating packages using YUM (custom YUM servers/repositories) and Red Hat Satellite Server.
• Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
• Configured various alerts, captured support logs and configured resource pools utilizing Cisco UCS Manager.
• Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers using satellite servers.
• Implemented rapid provisioning and life cycle management for RedHat LINUX using kickstart
• Expertise in security hardening (iptables/selinux) major Production Servers, and compiling, building and installing web server based Linux tools.
• Experience in performing, uploading and upgrading new firmware on the Interconnects and Chassis
• Proficient in providing support on the deployed Red Hat Enterprise Linux & Sun Solaris servers from both operating system level and application Level.
• Expertise in working with MySQL databases, Apache Web server, Tomcat Application Servers
• Troubleshooting any performance or configuration issues with MySQL and Oracl.
• Expertise in hardening, Linux Server and Compiling, Building and installing Apache Server from sources with minimum modules
• Monitoring and troubleshoot backups and schedule Cron jobs.
• Extensive experience in network managementTCP/IP, NIS, DNS, NFS, VLAN
• Experience in database replication using OCFS2 file system with oracle 10g and 11g database
• Patch management of servers and maintaining server's environment in Development/QA/Staging/Production.

Environment: VMware 4.x, RHEL 4.x/5.x/6.x, Solaris 9, 10&11, HPUX, Centos, SUSE 10, 11, VERITAS Volume Manager3.x/ 4.x, VERITAS Storage Foundation 5, RedHat Cluster, VERITAS Cluster Server 4.1, Tripwire, NFS, DNS, SAN/NAS

Confidential, Sacramento, CA

Unix/Linux Administrator

Responsibilities:

• Supported infrastructure environment comprising RHEL 3, 4, 5.3, SUN Solaris 9 and 10, HP-UX 11.X machines.
• Performed installations of OS on RHEL 5.3 and 5.2 on VMware ESX 3.5 and Proliant Blade BL and DL series servers using Kickstart.
• Configured Jumpstart and Kickstart Servers for Solaris 9/10 and RHEL 4.x/5.x respectively.
• Added patch and package on Red-hat Linux servers using RPM’s &YUM.
• Installed and configured VERITAS volume manager, VERITAS file system and VERITAS cluster server; Maintaining and troubleshooting VCS for failover and redundancy.
• Added and managed disk along with file system through VERITAS volume manager, Solaris Volume manager and Logical volume manager.
• Configured and maintained VERITAS volume manager, VERITAS file system and VERITAS cluster server.
• Migrated VMware ESX 3.5 to VMware Sphere 4 series.
• Worked on Oracle/UDB users and assigned appropriate permission.
• Created local and global zones using Solaris container technology.
• Installed and configured Websphere and Apache servers.
• Involved in disaster recovery testing every quarter; Implemented Disaster Recovery sites from the scratch.
• Deployed NIS and NFS for administrative and project requirements.
• Worked on Nagios and VERITAS Netbackup for monitoring system resources, logs, disk usage, scheduling backups.
• Used VMware virtual infrastructure, VMware ESX, VMware VCenter for server consolidation and virtualization.
• Updating the systems by patching (Solaris, HP UX, and Linux) in regular basis.
• Performed UNIX security audits and implementing security audits.
• Monitored the servers and applications using HP Openview.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy
• Performed backup storage using Tape libraries through HP storage works.
• Performed installations of software packages to install the additional features.
• Extended file systems (Logical Volume manager) size in production servers.
• Performed SAN Migration on HP UX (LVM), RHEL(LVM) and Solaris (Solaris Volume Manager) servers.
• Registered the new server hardware under Red Hat network for support and downloading software.
• Configured IP Multipathing on existing servers to avoid the downtime in case of Network Migration.
• Worked closely with database administration staff to ensure optimal performance of databases, and maintained development applications and databases.
• Involved in teams handling system performance, capacity planning and SLA compliance
• Experience with LDOMs, zones and containers in Solaris.
• Configured RED Hat Satellite server for upgrading of Linux servers.
• Involved in automation of process using perl, bash and korn scripts.

Environment: Solaris 10/9/8, Red Hat Enterprise Linux 3/4/5/6, HP-UX 11.0/11i, Sun Fire 4800/3800/V880/ Sun Enterprise 6500/500/4500/450/420 R/250 servers, VERITAS Clusters, HP 9000 K, L, N class server VERITAS volume manager 4.5, 5, VERITAS cluster server 5, VERITAS Netbackup, Nagios, EMC Clariion/Symmetric

Confidential, Atlanta, GA

Windows/ Linux Administrator

Responsibilities:

• Building new Windows Server 2003 and Linux 5 on Intel Server Platforms,
• Administered and setup user profiles in Win2003 servers and ADS maintenance
• Administered and setup Print servers in Win2003 server.
• Implementation of Microsoft DHCP, DNS, and Domain trust relationship, file and print services, user and group management.
• Implemented RAID5 for Fault Tolerance on Domain Controllers.
• Installed SQL server 2005 and deployed many SQL cluster deployments for clients for database requirements.
• Patching the Production Servers during the green zone window with security patches.
• Defining group permissions and creating local and global groups with account policies using Enterprise Administrator.
• Creating user rights, defining local and roaming profiles.
• Responsible to maintain the server inventory and document the server build/decommission, application installation/configuration, backup verifications, Operating System user accounts auditing, etc.
• Responsible for maintaining data integrity of various servers
• Ensure that the server security is in accordance with the established standards and best practices
• Perform responsibilities of reporting outages and document events in accordance with established procedures
• Providing 24/7 on call support for critical and production issues and sending System Dump to AIX System Support Center.
• Installation/administration of AIX, Linux, Solaris, and NT/2000 Servers on a LAN, setting up optimal RAID levels (fault tolerance) for protected data storage in NAS environments. Install and configure DHCP, DNS (BIND, MS), web (Apache, IIS), mail (SMTP, IMAP, POP3), and file servers.
• Planned, scheduled and Implemented OS patches on both Solaris & Linuxboxes as a part of proactive maintenance and Secure Shell (SSH) implementation.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Expertise in LDAP Installation, Configuration and troubleshooting.
• Responsible and expertise in installing and configuring and troubleshooting apache and samba server.
• Defined and setup network printers, and install client/server applications. Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS).
• Setup and administered room / Mentored students during .

Environment: Red Hat EnterpriseLinux5/6, DELL PowerEdge 6650, HP ProLiant DL 385, 585, 580, Sun Fire v440, SUN BLADE X6250, X6270. Remedy, BashTCP/IP, SMTP, NFS, FTP, MYSQL Database, Nagios, BMC Remedy, LVM. Oracle 11G, Samba, Oracle RAC/ASM