EXPERIENCE SUMMARY:

• Having 8+ years of experience in Linux in RHEL, CentOS, Ubuntu, Unix in Oracle Solaris,IBM AIX, VMware ESXI Administrator and AWS Solution Architect.
• Hands on experience in Amazon Web Services (AWS) provisioning and good noledge of AWS services like EC2, Elastic Load - balancers using Auto Scaling Policy, S3, Elastic IP, Elastic Filesystem, RDS, DynamoDB, VPC, Route53, CloudWatch, CloudTrail, Elastic Mem-Cache, CloudFormation and IAM.
• Worked wif IAM service creating new IAM users & groups, defining roles and policies and Identity providers.
• Created alarms and trigger points in CloudWatch based on thresholds and monitored the server's performance, CPU Utilization, disk usage.
• Administration and Architect of public and private cloud platforms (AWS) using VPC.
• Migrate multiple servers using AWS servers migration service (SMS) to migrate multiple VMware servers to AWS.
• Defined AWS Security Groups which acted as virtual firewalls that controlled the traffic allowed to reach one or more AWS EC2 instances.
• Set-up databases in AWS using RDS, storage using S3 bucket and configuring instance backups to S3 bucket.
• Restore the RDS using Restore Point in Time and Creating Read Replica.
• Creating Glacier using S3 Lifecycle rule.
• Hands on experience on CloudFormation templates and deployed AWS resources using it.
• Implementing S3 buckets implement properties based on the requirement and images storages.
• Create Elastic Mem Cache for application performance.
• Hands On Experience wif AWS CLI in configuring various services SNS, EC2, S3 and Service Groups.
• Checking the Cloud Watch Logs for RCA.
• Extensively worked on Jenkins by installing, configuring and maintaining for the purpose of continuous integration (CI) and for End to End automation for all build and deployments.
• Defined branching, labeling, and merge strategies for all applications in Git.
• Working Ticketing Tools like HP Openview, BMC Remedy, HP Service Manager
• Good Experience in UFS, JFS, Ext2,Ext3 and Ext4 File Systems.
• Installation, Configuration, and OS upgrades on UNIX operating systems like RHEL 5.X/6.X, SUSE Linux, Oracle Enterprise, AIX servers from 5.3 to 6.1,7.1,TL6/7/8 HP Unix.
• Experience in patching Solaris servers (zoned environment plus standalone servers)
• Experience in installation, patching and troubleshooting issues related to RHEL and VERITAS Storage foundation.
• Worked wif Vendor (RHEL, Oracle, Symantec, and IBM) for Operating system and Server hardware related issues and performed maintenance activities on weekdays and weekends too.
• Creating volume groups, Logical volumes and extending them using LVM.
• Configure the RHEL KVM (Kernel-Based Virtual Machine).
• Configure the RHEL LDOM and CDOM.
• Working in RHEL Cluster Service for Making the Application as High Availability.
• Installed and configured Apache, Tomcat and Nginx Web Servers.
• Created Disk groups, initialized physical disks to create a Veritas File System (VxFS).
• Import and Deport disks into a disk group depending on the requirement using the vxassist utility on the Veritas Volume Manager.
• Worked wif DBA team for database performance issues.
• Managed shared NFS, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services in UNIX environment
• Migrated and performed backups using rsync tool in Linux servers.
• Performed access control and package management using rpm and yum.
• Configure various network protocol are NFS, DNS, SSH, Telnet, FTP, SFTP, DHCP, SNMP, TCP/IP, UDP, VLAN and VSAN.
• Good exposure in doing resource upgrade in Solaris servers having zones, Linux servers running on VMs and AIX servers using LPARs.
• Familiar wif network tool Nagios.
• Data Base Knowledge on Microsoft SQL Server and ORACLE.
• Actively involved of ITIL in Incident Management, Problem Management and Change Management
• Physically hardware replacement in Solaris servers like CPU’s, DIMM, Fans & Mother boards.
• Physically power off the servers.
• Oracle Solaris servers RACK replacements.
• Kick start and Network installations in LINUX and UNIX.
• Manipulation of file systems, disk space management.
• Creating, extending File System through LVM.
• Implementing the RAID levels 0,1,5,1+0 at SVM in Solaris
• Knowledge on ZFS Creating Pools, Mirroring, ZFS File system, Set quotas in Oracle Solaris.
• Configuring the RAID levels like RAID 0 Stripping/Concat, RAID 1, and RAID 5, RAID 1+0 and RAID 0+1.
• Implementing User Security wif SUDO.
• Implementing Cron jobs and Managing Cron files.
• Managing the partitions using format and SVM, creating file system and mounting the file systems in Solaris.
• Expert in using the Continuous Deployment tools like Puppet and RHEL Satellite from that we can acquire consistency, stability and reliability.
• Expertise in using various Puppet features such as Resource management (Package, Service, File), User Management, Modules, Class, Definition, Templates, Factor and external commands.
• Experience deploying configurations using Puppet across 500+ Linux and Solaris servers.
• Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to existing infrastructure.
• Configured Apache webserver in the Linux AWS Cloud environment using Puppet automation
• Installed, configured and maintained multiple Red Hat Satellite Servers, and custom repositories.
• Maintain the RHEL Satellite Subscription Management and Content View.
• Expert in Configuring Custom Red hat channels, creating standard Kickstart Profiles, Applying Secure patches wif Red hat Satellite server.
• Implemented, configured and deployed new patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers using satellite server and YUM server.
• Maintained user account management, configured servers to register wif Red Hat Network RHN Satellite Server, monitored server’s workload assessment, service console monitoring.
• understanding of Cloud Technologies and Services, Agile methodologies (Scrum, Kanban), and IT Operations based on ITIL Framework

PROFESSIONAL EXPERIENCE:

AWS/Linux Sr. System Administrator

Confidential, CA

Responsibilities:

• Hands on experience in Amazon Web Services (AWS) provisioning and good noledge of AWS services like EC2, Elastic Load-balancers using Auto Scaling Policy, S3, Elastic IP, Elastic File system, RDS, Dynamo DB, VPC, Route53, Cloud Watch, Cloud Trail, Elastic Mem-Cache, Cloud Formation and IAM.
• Launching Amazon EC2 Instances using Amazon Web Services (Linux/ Ubuntu/ Windows) and Configuring launched instances.
• Worked wif IAM service creating new IAM users & groups, defining roles and policies and Identity providers.
• Created alarms and trigger points in Cloud Watch based on thresholds and monitored the server's performance, CPU Utilization, disk usage.
• Utilized AWS Cloud watch to monitor environment for operational & performance metrics during load testing.
• Administration and Architect of public and private cloud platforms (AWS) using VPC.
• Migrate multiple servers using AWS servers migration service (SMS) to migrate multiple VMware servers to AWS.
• Defined AWS Security Groups which acted as virtual firewalls that controlled the traffic allowed to reach one or more AWS EC2 instances.
• Set-up databases in AWS using RDS, storage using S3 bucket and configuring instance backups to S3 bucket.
• Restore the RDS using Restore Point in Time and Creating Read Replica.
• Creating Glacier using S3 Lifecycle rule.
• Created Cloud Formation templates and deployed AWS resources using it.
• Created S3 buckets implement properties based on the requirement and images storages.
• Create Elastic Mem Cache for application performance.
• Hands On Experience wif AWS CLI in configuring various services SNS, EC2, S3 and Service Groups.
• Experience deploying configurations using Puppet across 500+ Linux and Solaris servers.
• Checking the Cloud Watch Logs for RCA.
• Extensively worked on Jenkins by installing, configuring and maintaining for the purpose of continuous integration (CI) and for End to End automation for all build and deployments.
• Defined branching, labelling, and merge strategies for all applications in Git.
• Worked as L2/L3 System Administrator for production, development servers (1000 plus) support for SCIF servers.
• Experience in troubleshooting the server performance related issues in RHEL and Solaris Servers.
• Installation, Configuration, and OS upgrades on UNIX operating systems like RHEL 5.X/6.X, SUSE Linux, Oracle Enterprise, AIX servers from 5.3 to 6.1,7.1,TL6/7/8 HP Unix.
• Experience in patching Solaris servers (zoned environment plus standalone servers)
• Experience in installation, patching and troubleshooting issues related to RHEL and VERITAS Storage foundation.
• Worked wif Vendor (RHEL, Oracle, Symantec, and IBM) for Operating system and Server hardware related issues and performed maintenance activities on weekdays and weekends too.
• Creating volume groups, Logical volumes and extending them using LVM.
• Configure the RHEL KVM (Kernel-Based Virtual Machine).
• Working in RHEL Cluster Service for Making the Application as High Availability.
• Installed and configured Apache, Tomcat and Nginx Web Servers.
• Created Disk groups, initialized physical disks to create a Veritas File System (VxFS).
• Import and Deport disks into a disk group depending on the requirement using the vxassist utility on the Veritas Volume Manager.
• Worked wif DBA team for database performance issues.
• Managed shared NFS, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services in UNIX environment
• Migrated and performed backups using rsync tool in Linux servers.
• Performed access control and package management using rpm and yum.
• Good exposure in doing resource upgrade in Solaris servers having zones, Linux servers running on VMs and AIX servers using LPARs.
• Familiar wif network tool Nagios.
• Data Base Knowledge on Microsoft SQL Server and ORACLE.

Linux and Unix Sr. System Administrator

Confidential

Responsibilities:

• Worked as L2/L3 System Administrator for production, development servers (1000 plus) support for ICICI bank servers based in Hyderabad and Jaipur data centers.
• Experience in troubleshooting the server performance related issues in RHEL, IBM and Solaris Servers.
• Experience in OS upgrades of AIX servers from 5.3 to 6.1,7.1, TL6/7/8.
• Experience in patching Solaris servers (zoned environment plus standalone servers)
• Experience in installation, patching and troubleshooting issues related to VERITAS Storage foundation.
• Worked wif Vendor (Oracle, Symantec, IBM) for Operating system and Server hardware related issues and performed maintenance activities on weekdays and weekends too.
• Worked on day to day tasks (file system creation, package installation, user administration, OS installation, Server hardening)
• Good exposure in doing resource upgrade in Solaris servers having zones, Linux servers running on VMs and AIX servers using LPARs and DLPARs.Data Center Experience
• Physically hardware replacement in Solaris servers like CPU’s, DIMMS, Fans & Mother boards.
• Physically power off the servers. Solaris servers RACK replacements.

Linux and Unix Sr. System Administrator

Confidential, AllState, USA.

Responsibilities:

• Remote System Administration of Linux & Solaris servers, handling Level 2 support.
• Actively involved of ITIL in Incident Management, Problem Management and Change Management.
• Handling Outage Bridge calls, updating customers on daily basis in conference calls.
• Monitoring the work queue for the new tickets and acnoledging and solving them as per the severity and SLA.
• Interacting wif Vendors, whenever their is a Hardware issue and checking Console Logs for RCA.
• Logging the Call’s and working wif Vendor’s when their is a problem occurs and is being not resolved by us.RHEL 5 & 6:
• Kick start and Network installations.
• System performance through monitoring tool, Hardware and OS level logs and errors.
• Manipulation of file systems, disk space management.
• Creating, extending File System through LVM.
• Managing the Virtual File systems and adding the swap spaces.
• Creating and Managing User accounts and Groups.
• Implementing Cron jobs and Managing Cron files.
• Implementation and administration of NFS, AutoFs services.
• Sharing the files through NFS, Implementing wif AUTO-FS.
• Installation Configuration & Managing FTP server.
• Configuration and Management of DNS & Samba Servers.
• Configuration Apache web hosting.
• Implementing User Security wif SUDO.
• Handling Network, H/W Replacements related issues.
• Installation and Up-gradation of Package Administration through RPM, YUM. Solaris 8,9,10:
• Setting the parameters at OK boot PROM level.

Linux and Unix System Analyst

Confidential, UK

Responsibilities

• Check the file system consistency using the FSCK command and & resolving file system inconsistencies.
• File System Management, Monitoring OS and Network Activities.
• Monitoring system performance activity using iostat, vmstat, netstat, top, SAR and through monitoring tool.
• Creating and Managing Users/Groups and providing the required permissions to files and directories.
• Managing and adding the swap spaces.
• Implementation and administration of NFS, AutoFs services.
• Installation and Up gradation of Package and Patch Administration.
• Implementing the RAID levels 0,1,5,1+0 at SVM in Solaris
• Extending file system using metattach & growfs SVM in Solaris.
• Replace the failed hot-swappable disk in SVM.
• Scheduling Cron jobs and Managing cron files.
• Upgrading the Firmware on T,E and M Series servers.
• Managing network Interfaces, and IP Multipathing (IPMP) to provide high availability of Network Interfaces
• Creating & Managing non-global zones, Rebooting/shut down/halt the non-global zones.
• Cloning to the non-global zone.
• Knowledge on ZFS Creating Pools, Mirroring, ZFS File system, Set quotas.
• From initializing disks to configuring additional disks.
• Configuring the Sub disks, Plexs, Volumes using command line.
• Taking the Online backup and Online Resizing the Volumes.
• Encapsulate the root disk and Deport and import the disk group.
• Configuring root mirrors on Veritas VM.
• Disk management like disk failure, replacement and hot relocation.
• Discovering and configuring newly added storage to the OS and VERITAS Software.
• Configuring the RAID levels like RAID 0 Stripping/Concat, RAID 1, and RAID 5, RAID 1+0 and RAID 0+1.
• Supporting Veritas clusters including monitoring and maintenance.
• Administering service groups, resources, systems & clusters.
• Online/offline service groups & resources
• Switching, Fail over and freezing, Unfreezing Service groups on VCS.

Unix Junior System Administrator

Confidential

Responsibilities

• Monitoring system performance activity using iostate, vmstate, netstate, top and through monitoring tool.
• Managing the partitions using format and SVM, creating file system and mounting the file systems in Solaris.
• Stop / Start a SMF services and troubleshoot SMF service startup failure / clear the maintenance the state.
• File System administration.
• Managing the package and patch administration.
• Monitoring the services and processes using Solaris Management Facility service and administrating.
• Setting the parameters at OK boot PROM level.
• Monitoring the file System and CPU load for better performance in SUN Performance tuning.
• Managing the Virtual File systems and adding the swap spaces

TECHNICAL SKILLS

Operating Systems: Linux in RHEL 5,6,7, CentOS 5.11,6.9,7, SUSE, Oralce Enterprise Linux and Ubuntu 6.10, 7.10, 8.10 Unix in Solaris 9,10,11 and IBM AIX5.3,6.1,7.1.

Cloud Technology: AWS Solution Architect.EC2, S3, Elastic Load Balance, Auto Scaling Services, Glacier, Relational Database(RDS), Dynamo DB, Virtual Private Cloud(VPC), Route 53, Cloud Watch, Cloud Trail, Identity and Access Management(IAM), Elastic Mem-Cache, Cloud Formation, AWS CLI

Virtualization: VMware ESX, ESXI, KVM, vSphere & Vcenter server 5.0 & 5.5.

Network Services: NFS, DNS, SSH, Telnet, FTP, SFTP, DHCP, SNMP, TCP/IP, UDP, VLANAnd VSAN.

Data Base: Microsoft SQL Server and Oracle DBA.

Web Services: Apache, Tomcat and Nginx.

Configuration Tools: Puppet, Red Hat Satellite.

Software: Veritas Volume Manager 6.0, Veritas Cluster Server 4.1, RHEL ClusterService.

Ticketing Tools: HP Open view, BMC Remedy, HP Service Manager.

Backup/Monitoring Tools: Jenkins, Nagios, Net cool, Hobbit. HP, SCOM.

Servers: Sun Fire V890.T2000, T5250, T5440, T4, T5, M5000, M9000, E10K,IBM P780, HP PROLIANT DL380G7, PROLIANT DL360 G5, DL 580EXSI 4.0.