Sr System Administrator (cloud And Linux) Resume
MD
SUMMARY
- IT Infrastructure Professional with over all 10 years of experience in the areas of Cloud Administration, Unix/Linux System Administration in Redhat Linux and Sun Solaris servers.
- Amazon Elastic Compute Cloud (EC2) is Amazon s innovative web service that is pioneering cloud computing and utility computing by providing resizable compute capacity in the cloud.
- Experience with AWS CLI (Command line interface) for automating administrative tasks.
- Manage virtual and physical cloud resources as required with an overall objective of improving the scalability, reliability, performance, and availability of the cloud infrastructure.
- Extensive experience in Installation and Administration of Solaris 9, 10 and RHEL 5.x/6.x/7.x.
- Experience in upgrading operating systems from prior versions to the latest versions including updating Solaris 10 from prior versions like Solaris 9 using Live Upgrade and Linux 6.x from 5.x using Yum.
- Experience with the working on virtualization products like Solaris 10 zones, containers and LDom s.
- Hand on experience with installation of patches, Security fixes, packages on Linux and Solaris servers.
- Experience in implementing and configuring of Logical Volume Manager (LVM), Veritas Volume Manager (VxVM) and Solaris Volume Manager (SVM).
- Experience with User Admin, Hardware setup, support of Storage and managed paging / swap space.
- Experience in Integration of various network related services like TCP/IP, DNS, NFS, DHCP, SAMBA, FTP etc.
- Good Knowledge in writing Shell Scripts using ksh and bash.
- Proficient working in a large, heterogeneous Production environment on UNIX platform Hands on exposure on Application servers like IBM Web Sphere and Web Logic Proficient in Data Centre Management.
- Instrumental in Technical Documentation, ITIL Processes, Change Management Strong communication, collaboration & team building skills with proficiency at grasping new technical concepts quickly.
TECHNICAL SKILLS
Operating systems: Solaris (9 and10), Redhat Linux (5, 6 and 7), Windows (2003 and 2008).
Virtualization: VMware ESXi 5.x, Solaris Zones, Oracle VM (LDom), Docker Container
Cloud Hosting: Amazon Web Services (EC2, S3, Route 53, IAM, Elastic Load Balancing)
Hardware: SUN Sparc, SUN Fire, SUN Chassis, Blades, HP Enclosure, Blades
Monitoring Products: CA Spectrum, Netcool, BMC, CloudWatch
Network Services: DNS/Bind, DHCP, LDAP, NIS, FTP, Samba, NFS, SSH.
Tool: RTC, Vantive, AOTS Remedy, WinSCP, Putty, Patrol, Dyson.
PROFESSIONAL EXPERIENCE
Sr System Administrator (Cloud and Linux)Confidential - MD
Responsibilities:
- Installing, Upgrading and Configuring RHEL 7 on AWS Cloud Environment.
- Installing and Configuring Puppet, MySQL, LDAP, Tomcat and Docker Container on RHEL 7.
- Deploy, manage, and operate scalable, highly available, and fault tolerant systems on AWS.
- Migrate an existing on-premises application to AWS.
- Implement and control the flow of data to and from AWS.
- Select appropriate AWS services based on compute, data, or security requirements.
- Identify appropriate use of AWS operational best practices.
- Experience provisioning, operating, and maintaining systems running on AWS.
- Ability to identify and gather requirements to define a solution to be built and operated on AWS.
- Experience with application/data migration to AWS.
- Experience scaling an application and/or its hosting environment to support increases in traffic
- Support EC2, S3, Autoscaling, CloudFront, CloudWatch, IAM security services as needed.
- Provide issues/needs analysis and solution recommendation/implementation relative to systems needs.
- Work directly with AWS support engineers to identify and resolve issues if needed.
- Experience with AWS network connectivity configuration and network security.
- Experience with AWS CLI (Command line interface) for automating administrative tasks.
- Experience maintaining AWS network connectivity for standard Internet services such as VPC, VPN,
Sr. Unix System Administrator
Confidential - VA
Responsibilities:
- Assembled, replaced and handled Sun and Linux Hardware problems in Data Center.
- Expertise in installing, upgrading and configuring RHEL 5.x and 6.x
- Provisioning, remediating and implementing hardware which included servers like Sun 480R, E280R, E420R, M10-4, M5000, T2000, T4-1, T5220, V245, V440, V490, V890 and configuration of LDOMs on the T series servers.
- Experience in Solaris Virtualization implementations such as Solaris Zones/Containers & LDoM's.
- Experience working with HW like HP DL380-G5/G6/G7 and Blade/Chassis C7000 to setup Linux environment.
- Hand on experience with installation of patches, Security fixes, packages.
- Created ZFS and VxFS file system in Solaris 10 using Zpool and Veritas.
- Configured volume groups and logical volumes, extended logical volumes for file system growth needs - using Logical Volume Manager (LVM) and Vertias Volume Manager (VxVM).
- Centralized system configuration management utilizing YUM
- Organizing DR (Disaster Recovery) server tests to make sure the infrastructure is correct and the DR servers are working as expected as in production servers.
- Involved in Disaster recovery exercises for RHEL and Solaris servers and performed Disaster Recovery tests.
- Managed systems using remote consoles ILO
- Experience in implementing and configuring of Volume Management using Solaris Volume Manager
- Experience in Configuration and Administration Patch and Packages management.
Unix System Administrator
Confidential, TX
Responsibilities:
- Installation, Upgrading and deployment of Red Hat Linux Operating system on X-86 based HP BL460, BL685 Hardware.
- Installing and Configuring Solaris in Production Environments using Jumpstart and Live upgrade methods.
- Managing User’s accounts and groups, setting up User environments in Linux and Solaris
- Packages and Patch administration - Installing, Upgrading, query and remove software packages using RPM and YUM
- Installed and configured VERITAS Storage Foundation Suite 5.x version of, VxVM, VCS and VxFS for Solaris 10
- Implementing various security tools like SETUID, SETGID and STICKY BIT on file system for providing secure access
- Creating and administration of Logical Volumes, Physical Volumes using LVM and SVM.
- Installing, Configuring and Administering TCP/IP, NFS, DNS, DHCP, SAMBA and FTP.
- Managed system process and Monitoring the server performance using ps, top, vmstat, iostat.
- Managing a file system ext3, ext4, tune2fs, fsck, e2fsck, ufs, zfs and vxfs
- Scheduling of batch jobs using Autosys and native cron.
- Activities include user admin, startup and shutdown scripts, crontabs, file system maintenance.
- Created Local zones and Branded zones on global zones and migrated the application on to these zones from the physical serves.
- Performance monitoring and Tuning using top, prstat, sar, vmstat, ps, iostat etc.
- Performing routine checks and Bouncing the servers according to the schedule
- Actively involved during the change requests and all maintenance activities.
- Configured RAID mirroring of Root Disk using SVM on Solaris 10.
- Provided 24x7 on call and remote support for UNIX Production Problems and responding to users' tickets from Remedy.
System Administrator
Confidential
Responsibilities:
- User Administration by creating, maintaining User’s accounts and groups, setting up User environments.
- Maintaining file systems: Checking and repairing file systems and monitoring file system usage.
- Performing Patches and Package Administration
- Monitoring Virtual memory, adding additional swap space as needed.
- File System administration and management like monitoring various logs, file system sizes etc.
- Processes administration like monitoring, start/stop/kill various processes/sub process.
- Actively involved during the change requests and all maintenance activities.
- Viewing and controlling the Processes running on the system and automating repetitive tasks.
- Coordination of technical issues involving network, hardware, and operating systems.
- Report Maintenance (Daily report and Monthly Report).
Technical Associate
Confidential
Responsibilities:
- Extensive experience in installation, administration and networking in various environments.
- Managing a Microsoft Windows Server 2003 Environment.
- Administered change management related to server upgrades and software installation.
- Installed, configured, and provide troubleshooting for Server 2003.
- Installed and configured an Active Directory Domain Controller.
- Managed user accounts, groups, print queues and controlling access rights using AD.
- Troubleshooting Unix OS Alerts, & Middleware Access Services alerts from all the servers running middleware applications using BMC Patrol, Wily Introscope & Mercury.
- Performing routine checks and Bouncing the services according to the schedule
- Monitoring the server performance and checking the disk spaces of servers.
- Increasing, decreasing, registering and un registering the number of Datagate and EMBus services instances using configure files, scripts and MMT Tool, as required for Load balancing.
- Actively involved during the Change requests and all maintenance activities.
Hardware Support Engineer
Confidential
Responsibilities:
- Install and upgrade hardware and software components
- Provide technical solutions and troubleshooting services on need basis
- Assisted the clients with technical issues, troubleshooting, installation and configuration
- Installed, changed and removed hardware in various desktop and service hub configurations
- Install and assist service personnel hardware and peripheral components such as monitors, keyboards, printers, and disk drives on user's premises.
- Responds to client inquiries concerning systems operation and diagnoses system hardware, software, and operator problems.
- Maintain accurate records of PC and laptop serial numbers and base configuration.
- Installing computer and printer hardware, configuring computer and printer software.