Systems Administrator Resume Profile
PROFESSIONAL SUMMARY:
- Over Seven 7 years of experience in System Administration/Application Support administration and networking. Experience in installing and maintaining the operating systems and configuring networks in Centos, OEL, Redhat, HP-UX, IBM AIX, SUSE, Ubuntu as well as Windows NT/2003/XP/2008/7 based environments connected to SAN Storage and Network Environments.
- Excellent communication skills and extensive documentation experience clear understanding of business and ability to work as a part of team.
- Specialist in automation writing Shell and Perl scripts to monitor UNIX production applications.
- Great ability to work with people to solve technical and business issues.
- Experienced in UNIX, MAC and PC hardware, software and networked environments.
- Implementing and Maintaining Apache web server with HTTPS.
- Experience working on SPLUNK and AWS Cloud environments.
PROFESSIONAL WORK EXPERIENCE:
Confidential
System Admin Dev Ops Engineer
- FiOS Mobile APP: Verizon has developed an application FIOS Mobile APP which could broadcast Live TV and Video on demand on mobile devices. I have worked on this application from scratch on the architecture and flow. Any escalation tickets were resolved by my team. We had to contact various teams and figure out the root cause. As of now FiOS mobile app has 125 in-home channels and 31 out-of home channels. Moreover, I have worked on the Keys being shared from the Linux server to the Windows server's using Samba share. Also worked on Encoders with 128 bit Key rotation and setting up channels on these encoders. We have collectively worked with teams on Thumbnails issues. Resolved number of issues with Verizon FiOS mobile APP, we were the first POC to look into it.
- Verizon Media Server: VMS is the next project of Verizon we worked on installing VMS at various locations. The features of VMS are:
- Includes 1TB hard-drive,
- Six 6 on-board tuners,
- Ability to combine with another server box to allow up to 12 shows to be recorded at once,
- Recording when not in home on the DVR.
- Worked on getting the logs, crash logs to figure out any issues, checking logs and finding the RCA related to the issue. We were the first POC to resolve any issues. If we found that issues were not related to us we forwarded to different teams.
Responsibilities:
- Installation, configuration and upgradation of Redhat Linux 3/4/5/6, Cent OS 5.7, Windows 2008/2012 operating systems.
- Remote monitoring and management of server hardware.
- I was representing Terremark from my team and whenever we had server alerts or patching activities, I was taking care and making sure everything was fine.
- Did a health check of servers after patching / rebooting and checked all the services of Linux and Windows server's whenever we had reboots.
- Resolved many issues related to Verizon FiOS mobile App. We were the first POC for resolving any issues related to verizon FiOS mobile application.
- Worked on Installing SPLUNK on DEV, Non-PROD and PROD servers.
- Worked on generating SPLUNK reports using scripts.
- Experience working in AWS Cloud Environment like EC2 EBS.
- Made instances on the AWS cloud, made users and assigned them privileges.
- Created users and added them to admin group and different users groups.
- Established connectivity between Client and AWS servers by enabling Proxy, Firewall and LB's
- Installation and administration of DNS, NIS DHCP servers.
- Extensively involved in troubleshooting bottlenecks of Memory, CPU, Devices and Network using PS, vmstat, iostat, netstat, SAR, snoop, nfsstat and SAR commands, tuning the performance.
- Made Package management using RPM, YUM and UP2DATE in Red Hat Linux.
- Worked on Firewall implementation Load balancer between various Windows servers.
- Associated with DBAs for installation of Oracle db on Linux servers for tuning, backup and restore.
- Scheduling the jobs by creating Crontabs / Cronjobs on Linux and Windows Servers.
- Perform operational tasks and activities e.g. monitoring log files, performance tuning and migration between environments.
- Monitor the performance and availability of key middleware components in production and test environments.
- Have been the on-call person for the application support, worked with the appropriate team members to get a resolution on issues.
- Worked on customer tickets which are related to our application and help application team for the configuration changes and the file drops on the different servers.
- Configured IIS on Windows 2008 Servers.
- Configured the systems for TCP/IP Networking with the existing LAN, Setting up SSH and SCP.
- Ability to write Shell Perl scripting.
- User, Group Administration and Advanced File Permissions.
- Worked on Log Parser and parsed logs based on the requirements of the App team.
- Maintain security for the networked environment while allowing users to access all data and software remotely.
- Worked on JIRA, Adding users to JIRA, Implementing the password policy to JIRA users.
- Worked on Qmetry, and also on patch update of Qmetry.
- Worked on Encoders and setting up channels on them using 128 bit key rotation.
- Worked on Verizon Media Server support.
- Resolved a number of issues by checking logs and finding the RCA's.
- Have been the first POC to resolve all issues reported for VMS.
Environment: RHEL 6.x/5.x, Cent OS 5.7, Windows 2008,2012 Apache 1.2/1.3/2.x, Logical Volume Manager, VERITAS NetBackup 5.x/6.0,VM ESX 3.x/2.x
Confidential
UNIX Solaris Linux Administrator
- Installing and upgrading OE Redhat Linux and Solaris 8/9/10 x86 SPARC on Servers like HP DL 380 G3, 4 and 5 Dell Power Edge servers.
- Experience in LDOM's and 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.x for running the Windows, Centos, SUSE and Redhat Linux Servers on development and test servers.
- Experience working EMC SAN Storage arrays like EMC Clariion and configured RAID groups and created LUN's on them.
- Involved in Day to day to activities on Solaris, Linux and also performed upgrades and migrations using different third party tools like rsync Double take.
- Installed and configured Apache on Linux and Solaris and configured Virtual hosts and applied SSL certificates.
- Implemented Jumpstart on Solaris and Kickstart for redhat environments.
- Experience working with HP LVM and Redhat LVM.
- Experience in implementing P2P and P2V migrations.
- Involved in Installing and configuring Centos SUSE 11 12 servers on HP x86 servers.
- Implemented HA using Redhat Cluster and VERITAS Cluster Server 5.0 for WebLogic agent.
- Managing DNS, NIS 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.
- Troubleshooting application issues on Apache web servers and also database servers running on Linux and Solaris.
- Experience managing EMC SAN devices like clarion and performed tasks like creating LUN's on RAID groups.
- Experience in migrating Oracle, MYSQL data using Double take products.
- Used Sun Volume Manager for Solaris and LVM on Linux Solaris to create volumes with layouts like RAID 1, 5 and 10.
- Experience in migrations of Solaris and Linux servers from EMC DMX to VMAX arrays using VERITAS and SVM.
- Re-compiling Linux kernel to remove services and applications that are not required.
- Performed performance analysis using tools like prstat, mpstat, iostat, SAR, vmstat, truss, Dtrace.
- Experience working on LDAP user accounts and configuring ldap on client machines.
- Upgraded Clear-Case from 4.2 to 6.x running on Linux Centos Redhat
- Performed security analysis using tools like JASS, nmap, Nessus, snort.
- Worked on patch management tools like Sun Update Manager.
- Patching of OS on mirrored servers after detaching and re-attaching the sub-mirrors.
- Implemented the monitoring tools like Nagios 3.0 to monitor services like CPU, Hard Drive, Memory, Users, http, ssh etc.
- Experience in supporting Tru 64 5.x OS running on Compaq HW.
- Experience managing multipathing using Linux and Solaris Native and also EMC Powerpath on SAN devices.
- Experience supporting middle ware servers running Apache, Tomcat and Java applications.
- Worked on day to day administration tasks and resolve tickets using Remedy.
- Used HP Service center and change management system for ticketing.
- Troubleshooting and performance tuning issues with applications like Oracle 10g, MySQL, JBoss 4.x, WebLogic 10, MQSeries 6.x Java Applications on operating systems which included Solaris and RHEL.
- 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 WebLogic Servers.
- Shell scripting to automate the regular tasks like removing core files, taking backups of important files, file transfers among servers.
Environment: Solaris 8,9,10 11, HPUX, Centos, SUSE 10, 11, RHEL 3, 4.x, 5, VERITAS Storage Foundation 5, Redhat Cluster, VERITAS Cluster Server 4.1, VMware ESX 3.x, HP PA-RISC, HP ITANIUM servers, HP DL 380 G5, Sun Storedge 3511
Confidential
UNIX Linux and Solaris Administrator
- Installation of Solaris 8, 9 based servers with Jumpstart and Centos, Redhat Linux EL 4.x based servers using Kickstart in development, test and production environments.
- Implemented and administered VM Ware ESX 3.5 and 4.1.
- Performed project coordination function for evaluation, installation, monitoring, and maintenance of server software on variety of hardware platforms.
- Installed/ upgraded patches, firmware OBP , and security Kernel patches for all applications in installed infrastructure.
- Proactive maintenance on systems by timely upgrading Patches to the systems and applications, Scheduling of batch jobs and cronjobs.
- Upgraded over 35 servers with VERITAS Volume Manager from 3.x to 4.0.
- Responsible for user administration and management using SUDO and RBAC
- Built new systems for Production and migrated from Solaris 8 to 9.
- Maintained Volumes and File systems using VxVM / VxFS for Oracle, DB2, Sybase MySQL databases.
- Used VxVM to add disk, create new disk groups/volumes, resize, deport and import disk groups between servers.
- Supported server running data ware housing application and Teradata database.
- Experience with running SQL queries on Oracle and MySQL.
- Used VERITAS Cluster Server 4.1 to create high available environments for NFS, WebLogic and Send mail agents.
- Managed and supported LDAP environment running on Unix OS.
- Worked with Solaris Security Kit 4.1 formerly known as JASS to harden the Solaris servers and removing unnecessary processes on both the operating systems.
- Performed systems monitoring, upgrades, performance tuning and backup and recovery.
- Implementation of naming services like DNS with Bind 8.4.x and NIS.
- Troubleshooting and fixing the problems related to systems, software and day to day regular maintenance tasks of the system.
- Respond to emergency calls relating to server performance, diagnosis of problems, repairing problems or calling upon appropriate vendors to resolve the issue.
- Responsible for quality reviews and standards.
- Provided 24x7 on-call / Remote Support for UNIX Production Problems on weekly rotation basis.
- Troubleshooting day-to-day server related issues and problems.
Environment: Solaris 8,9, Centos, Redhat Linux AS 2.1, 3, HPUX 11.0,11.11, Sun v245, E220, 420, 280R, v480, 490, 880, 890, 250, Netra T1/ X1, HP OV, TSM, VERITAS Volume Manager 3.x/ 4.x, Guardium, Best1, Bind View, SysEdge, Tripwire, ITA, NIS, NFS, DNS, DAS/SAN/NAS, WebLogic, Web method, Apache, Perl.
Confidential
Linux / Solaris Systems Administrator
- Installing, configuring and updating Solaris 7, 8, Red Hat 7.x, 8, 9, Windows NT/2000 Systems using media and Jumpstart and Kickstart.
- Installing and configuring Windows Active directory server 2000 and Citrix Servers.
- Published and administered applications via Citrix MetaFrame.
- Creating and Authenticating Windows user accounts on Citrix server.
- Creating System Disk Partition, mirroring root disk drive, configuring device groups in UNIX and Linux environment.
- Working with VERITAS Volume Manager 3.5 and Logical Volume Manager for file system management, data backup and recovery.
- User administration which included creating backup account for new users and deleting account for the retired or deleted users.
- Implementing backup solution using Dell T120 autoloader and CA Arc Serve 7.0
- Managing Tape Drives and recycling it after specific period of time as per the firms policies.
- Working with DBA's for writing Scripts to take database backup and scheduling backup using cronjobs.
- Creating UNIX and PERL scripts for automated data backup, status of the storage.
- Installing and configuring Oracle 8i database and Sybase server on Solaris after creating the file systems, users and tuning the kernel.
- Installed and Configured SSH Gate for Remote and Secured Connection.
- Setting up labs from scratch, testing hardware, installing and configuring various hardware devices like printers, scanners, modems, network and communication devices.
- Configuration of DHCP, DNS, NFS and auto-mount.
- Creating, troubleshooting and mounting NFS File systems on different OS platforms.
- Installing, Configuring and Troubleshooting various software's like Windd, Citrix Clarify, Rave, VPN, SSH Gate, Visio 2000, Star Application, Lotus Notes, Mail clients, Business Objects, Oracle, Microsoft Project.
- Troubleshooting and solving problems related to users, applications, hardware etc.
- Working 24/7 on call for application and system support.
- Experience in working and supported SIBES database running on Linux Servers.
Environment: Solaris 7, 8, redhat Linux 7.x, 8, 9, Windows 2000/NT, VERITAS Volume Manager 3.5, Oracle 8i, SSH Gate, Cisco router, Brocade switches, DHCP, DNS, NFS, Automounter, Sun E4500, E3500, 280r, E220.
Confidential
Junior Linux / Systems Administrator
- Installing, configuring and updating Solaris 7, 8, Red Hat 7.x, 8, 9, Windows NT/2000 Systems using media and Jumpstart and Kickstart.
- Installing and configuring Windows Active directory server 2000 and Citrix Servers.
- Published and administered applications via Citrix MetaFrame.
- Creating and Authenticating Windows user accounts on Citrix server.
- Creating System Disk Partition, mirroring root disk drive, configuring device groups in UNIX and Linux environment.
- Working with VERITAS Volume Manager 3.5 and Logical Volume Manager for file system management, data backup and recovery.
- User administration which included creating backup account for new users and deleting account for the retired or deleted users.
- Implementing backup solution using Dell T120 autoloader and CA Arc Serve 7.0
- Managing Tape Drives and recycling it after specific period of time as per the firms policies.
- Working with DBA's for writing Scripts to take database backup and scheduling backup using cronjobs.
- Creating UNIX and PERL scripts for automated data backup, status of the storage.
- Installing and configuring Oracle 8i database and Sybase server on Solaris after creating the file systems, users and tuning the kernel.
- Installed and Configured SSH Gate for Remote and Secured Connection.
- Setting up labs from scratch, testing hardware, installing and configuring various hardware devices like printers, scanners, modems, network and communication devices.
- Configuration of DHCP, DNS, NFS and automounter.
- Creating, troubleshooting and mounting NFS File systems on different OS platforms.
- Installing, Configuring and Troubleshooting various software's like Windd, Citrix Clarify, Rave, VPN, SSH Gate, Visio 2000, Star Application, Lotus Notes, Mail clients, Business Objects, Oracle, Microsoft Project.
- Troubleshooting and solving problems related to users, applications, hardware etc.
- Working 24/7 on call for application and system support.
- Experience in working and supported SIBES database running on Linux Servers.
Environment: Solaris 7, 8, redhat Linux 7.x, 8, 9, Windows 2000/NT, VERITAS Volume Manager 3.5, Oracle 8i, SSH Gate, Cisco router, Brocade switches, DHCP, DNS, NFS, Automounter, Sun E4500, E3500, 280r, E220.
TECHNICAL SUMMARY:
- Unix Sun Solaris v 9, 10, HP-UX v 10.2, 11.0,11.11, 11i v3, IBM AIX v 5.x, 6.x
- Linux redhat EL v 4.x, 5.x, 6 beta, Centos, SUSE v 8,9,10.0, 11.x, Ubuntu v 6.10, 9.10.
- Windows Win NT/98/XP/Vista/7/2008 R2