Ramesh Batchu
Charlotte,NC
Summary
Over 10+ years of strong experience as a LINUX/UNIX System Administrator and Production Support of various applications on SUN Solaris, Red Hat Linux and Windows environment. Responsible for installation, configuration, and administration of Red Hat Linux, Solaris systems. Web Application Servers Tomcat, Apache, IBM Web Sphere, Web logic. Superior troubleshooting and technical support abilities with migrations, network connectivity, security and database applications. Experienced with installation of packages, patches, maintenance & RPM updates on Linux (RedHat & SuSE) and IBM AIX servers. Installation of SSL certificates Linux servers. Hands on experience in installation, configuration, supporting and managing Hadoop Clusters using Apache, Cloudera (CDH3, CDH4), Yarn distributions. Worked with Monitoring and Tickets Systems such as Remedy,Service Now, Clarion, Clear Quest. Proven experience in incident identification, diagnosis, troubleshooting and implementation or deployment of the solution to include testing and validation. Hands on experience with ticketing tools such as Remedy, BMC service desk express and Quick base. Provided 24x7 on call Support on a rotation basis. Good Communication Skills, working independently; as well as working in a team environment.
Overview
16
16
years of professional experience
Work History
UNIX/Linux Systems Administrator
Charter Communication
12.2016 - Current
- Provide administration and maintenance for daily operations of information systems that support critical applications to 140+ servers including Solaris, Red Hat Enterprise Linux (RHEL) Servers.
- Installing, tuning, troubleshooting and patching of Red Hat Enterprise Linux servers.
- Installation, Configuration and Maintenance of samba, Apache Tomcat, Web Sphere and JBoss servers in Solaris and Linux environment.
- Perform regular day to day system administration activities such as user administration, disk management, package install, patch management, storage management, and NFS administration.
- Installation, Configuration and Maintenance, Enterprise computing including: Windows, Linux, Software and Hardware, System Backup, Recovery, Linux User and File System Management, Linux/Unix Package and Patch Management.
- Autosys Administration, Implementation, Upgrade, Knowledge Transfer, Production Support.
- Expertise in setting up SSH, SCP, SFTP connectivity between UNIX hosts. LDAP, sendmail, ftp, remote access, security management and Security trouble shooting skills.
- Installed and maintained NFS Clustered gateway for NAS and SAN services supporting on Red Hat Enterprise Linux (RHEL) servers.
- Knowledge of Routers, Switches, Hubs, Firewalls, LAN, WAN Intranet, Internet and Load balancers.
- Involved in start to end process of hadoop cluster setup where in installation, configuration and monitoring the Hadoop Cluster.
- Installed and configured Hive, Pig and Sqoop on the hadoop cluster.
- Adding/removing new nodes to an existing hadoop cluster.
- Involved on installation, configuration and updates of LDAP, DNS,DHCP,NFS,NIS and NIS+ on Red Hat Linux.
- Installation of Engines and Agents for One Automation scheduling tool and monitored scheduled jobs for data migrations using the one atomic scheduling tool.
- Working on disaster recovery (DR) project as the client servers were infected.
- Using DR process to restore IT infrastructure which includes both physical and virtual servers.
- Recovering server using 1 touch BMR for physical, commvault restoring VM’s from backup and NDMP backups.
- Server hardening is done as part of recovery, following the change management process to move to production.
- Installation and configuration of SVN and GIT Hub Client and Involved in the migration of code from SVN to GIT.
- Configured Build artifacts using Jenkins for java projects.
- Created the promotions cycles from dev to production using Jenkins.
- Installed and configured Oracle 12c Multi-Tenant Container Database and Pluggable Database format.
- Identify improvements to enhance CI/CD.
- Performed OS provisioning, patching of RHEL using yum, up to date using Kickstart through BMC Blade Logic.
- Resolved system errors and crashes, disk space problems, huge file sizes, and file system full errors.
- Excelled in Customer Service reviews with respect to Customer Satisfaction with Performance.
- Environment: Red Hat Enterprise Linux 5.x/6.x/7.x, Sun Solaris 8,9,10, VERITAS Cluster Server, Veritas Volume Manager, Hadoop, HDFS, Hive, Sqoop,, Oracle 9i/10g/11g/12c RAC with Solaris/redhat, LDAP, EMC Storage SAN, Veritas Cluster Server (VCS), VMware servers, jboss,Websphere.Big Data Cloudera CDH Apache Hadoop, Jenkins, Toad, SQL plus, Oracle Enterprise Manager (OEM), Redhat/Suse Linux, Shell Script, Autosys.
UNIX/Linux Systems Administrator
Merck and Company
04.2015 - 10.2016
- Systems administration, maintenance and monitoring various day-to-day operations.
- Skilled in planning,configuring,Administration and Maintenance of UNIX (Solaris/Linux/AIX) and LEGACY Systems.
- Autosys Consultant, Advisor, Instructor, Pre-Sales, Autosys Engineer.
- Installation/Upgrade, System Startup & System Shutdown as needed.
- Experience in All levels of RAID Configuration and Management using Raid Manager.
- Monitor System Performance Parameters using iostat, vmstat and fine-tuning.
- Deploy and maintain Linux systems and app software in multiple clusters across eight data centers.
- Unix Administration, File system support, new system installation and performance monitoring for AIX v6.1/5.3/5.2/5.1, AIX 4.3-3.
- Hands on working experience Linux environment with Apache Tomcat,experience on Amazon AWS.
- Good experience in Scheduling full backup and Incremental Backup for daily, weekly and monthly Basis and creating Installation & Configuration Documentations.Experience in networking and TCP/IP services.
- Highly proficient with ticket tracking software/web tool (Remedy, Service-Now).
- Maintain a working environment that promotes Productivity, Responsiveness, High Team Morale,Motivation and Excellence.
- Implementation of TCP/IP and related Sevices-DHCP/DNS/WINS.
- Installation and administration of firewalls/Snort IDS on Linux servers
- Actively monitoring the network,application and database alerts on BPPM console (BMC ProactiveNet Performance Management) in the charlotte data center.
- Strong experience in designing and working with MySQL and Mongo DB.
- Worked with make Unix tool to simplify building program executables from many modules.
- Used the xMatters and Alarmpoint for paging the support teams.
- Data Center Consolidation: Performed data center and server consolidation, workload planning, migration and implementation projects for various companies worldwide.
- Environment: AIX, LPAR/DLPAR,Solaris 10/8, Red Hat Enterprise Linux 4/5, Sun SPARC Enterprise T5120/T5220/T5240 , VMware ESX Server, RAC ,Netra T1, Sun Fire 3800, IBM server x-series, HP Proliant DL Servers, VERITAS Volume Manager/Cluster, SAN Environment, SVM/LVM.
Sr. Linux/Unix Application Support Engineer
UBS Investment Bank
01.2013 - 03.2015
- Provided 24x7 technical support for troubleshooting data issues associated with FI prices, Accrued Interest and Schedule data.
- Downstream Interfaces setup and Troubleshooting.
- FTP and SFTP account setup and Troubleshooting.
- Working closely with Operations and Clients on user report generation.
- Primarily involved in supporting loading the trades as and when requested by the traders.
- Supporting the trading environment for the commodities group and ensure that all the trades are flowing as per requirement from Logical Information Management (LIM) to Commodity XL (CXL).
- Installation and maintenance of AIX 5.x and 6.x on pSeries systems through NIM and through hard drive as well.
- Created/Modified reporting applications for custom client reporting; which reported on mortgage data captured by the auditors.
- Responsible for providing on-site technical support and advice for the installation, setup, and tuning of open-source Snort network intrusion sensors.
- Monitor and maintain ticketing system to ensure all new and repetitive bugs and issues are addressed, researched, fixed and closed.
- Configure & support VMware backups and restores using Symantec's Netback up, also experience with VERITAS Backup Exec software.
- Monitored AutoSys schedule batch jobs with on-call support on a regular basis for morning, intraday, evening, over night and weekend batch data processing.
- Utilized data excellence during the account creation life cycle for various investment accounts such as Money Market, FX forward and Spot, Loan Trading Cash and Credit Securities, Exchange Trade Derivative, High Net Worth for UBS trading floor.
- Creating Virtual Machines, updating VMware tools, VMware Hardware, VM Templates, Virtual disk and memory expansion and Cloning Virtual Machines.
- Coordinating with internal customers and responding timely related to the mortgage issues.
- Responsible for coordinating with the IT and equities and update any requests by being a part of the global service desk for the Commodity Support.
- Hands on experience in application development and production support of large and critical network with 24/7 uptime.
- Environment: AIX, Sun Solaris 10/8, RHEL 5 (64 bit),PL/SQL, Sybase ASE 12.5/15, UNIX and Perl, Oracle 10g/11, Tomcat/Apache, Samba, SNOW Ticketing tool, IBM Web Sphere Application Server, Web logic, Ksh Script, AutoSys, Java, JSP and HTML(Static data), MQ,TCP/IP.
UNIX application analyst and server production support
Accenture
07.2012 - 01.2013
- Responsible for installing, configuration, and administration for UNIX/Sun Solaris Servers.
- Applying system package installations and upgrades.
- Responsible for Backup and restores operations for VERITAS Netback Up operations.
- Working knowledge on Zones creation and deletion and maintenance.
- Responsible for prepare recommendations on operating system updates, configuration and reporting.
- Outlined implemented and managed infrastructure of WebLogic.
- Configuring, Administrating and Management of Users and Groups.
- Environment: AIX, Sun Solaris 10/8, RHEL 5 (64 bit),PL/SQL, Sybase ASE 12.5/15, UNIX and Perl, Oracle 10g/11, Tomcat/Apache, Samba, SNOW Ticketing tool, IBM Web Sphere Application Server, Web logic, Ksh Script, AutoSys, Java, JSP and HTML(Static data), MQ,TCP/IP.
Administration and Monitoring for UNIX, Linux servers
AT&T Wireless
11.2011 - 07.2012
- Installing, Configuring & Upgrading of operating systems Solaris Linux.
- Monitoring System performance and do kernel tuning to enhance the system Performance.
- Configuration of NIS, NFS, sends mail on Solaris 10 and Linux.
- Disk and File system management through VERITAS Volume Manager.
- Responsible for day-to-day System Administration for SUN SOLARIS.
- Storage setups, RAID, Logical Volume Manager, System Backup design and disaster recovery Systems performance monitoring.
- Solaris Operating Systems upgrade, package installations, patches and software fixes.
- Responsible for troubleshooting, end user and application problems.
- VERITAS File system and VERITAS Volume Manager are used to configure the RAID 1 and RAID 5 Storage Systems.
- Installing operating systems, patches, hardware, vendor software packages, system customization and documentation for Solaris and Redhat Linux servers.
- Monitoring system resources, logs, disk usage, scheduling backups and restore.
- NFS Management - Take care of user accounts/groups, setting up of NFS Environment.
- User Administration, management and archiving.
- Environment: Solaris 8,9,10, Red Hat Linux OS 3.0, Korn Shell, Sun 12K,Veritas Volume Manager 3.1, Solaris Volume Manager, VERITAS Cluster Server,Web logic 8.1, Samba, Oracle 9i/10g. Sun Ultra Enterprise Servers (E450, E420R, E250), Sun Fire (12k, 15k), Sun workstations (80,100)
UNIX application analyst and Server production support
Verizon Business
04.2010 - 10.2011
- Responsible for installing, configuration, administration for UNIX/Sun Solaris Servers.
- Applying UNIX skills to monitor user related logins and issues.
- Responsible for Patches, Package Installations, upgrades and backup for Servers.
- Daily Morning Health checks of Network & Servers Performance and log Monitoring.
- Developed Health Check scripts to monitor the status of all the applications.
- Experience in working with Virtualization Technologies Solaris Zones/Containers and LDOM’s.
- Environment: Solaris 8/9/10, Red hat Linux AS3.0/4.0/5.0,Korn Shell, Sun 12K, Veritas Volume Manager 3.1,Solaris Volume Manager, Veritas Cluster Server, Web logic 8.1,Samba,Oracle 9i/10g.
UNIX Administrator
T-Mobile
10.2009 - 04.2010
- Installing, Configuring & Upgrading of operating systems Solaris Linux.
- Redhat Server 4 & 5 for and patching Linux Servers.
- Manage user’s accounts for the team access for Redhat Linux Servers.
- User Administration, management and archiving.
- Installing operating systems, patches, hardware, vendor software packages, system customization and documentation.
- Monitoring system resources, logs, disk usage, scheduling backups and restore.
- Working knowledge on Zones creation and deletion and maintenance.
- Software and Hardware Installation, Backups, Cabling, Network.
- Batch job (Cntrl –M) monitoring and running
- Developed CRON scripts for error reporting and debugging.
- Check and repair File system Super-Blocks with fsck, dd utilities
- Used the remedy ticket system to open and solve tickets.
- Environment: Solaris 10/9/8 Sun Enterprise Servers, Linux Redhat, WebSphere,Tomcat,CVS, ORACLE, AWK, Network Appliance NFS/CIFS server.
Education
Bachelor of Technology - Electronics and Communications
JNTU
Hyderabad, IndiaMaster of Science - Telecommunications
BTH University
SWEDENSkills
- Operating Systems: Linux (Red Hat 4x-5x-6x-7x), UNIX, Sun Solaris, SUSE, HP-UX,Windows – NT/2000/2003/2007 Server /XP Pro/Vista
- Hardware platforms: DELL (Power Edge), SUN Enterprise- E25k, E10K/15K, TSeries, Vseries IBM Compatibles, HP Proliant Servers
- RDBMS: Oracle 9i/10g/11g, MySQL, PostgreSQL,Teradata,DB2,MS SQL Server
- Web/Application Server: Web Sphere Apache, JBoss, Tomcat, Web Logic, Weblogic, PL/SQL
- Networking: TCP/IP, NFS,DNS,DHCP,FTP/SFTP,SSH,LAN/WAN, LDAP, Cisco Routers / Switches
- Tools: VMware, Veritas Volume Manager, Cluster Server, Autosys,Veritas Net Backup,Rememdv,JIRA, Nagios,Sun Cluster, Jenkins, SVN, GIT
Timeline
UNIX/Linux Systems Administrator
Charter Communication
12.2016 - Current
UNIX/Linux Systems Administrator
Merck and Company
04.2015 - 10.2016
Sr. Linux/Unix Application Support Engineer
UBS Investment Bank
01.2013 - 03.2015
UNIX application analyst and server production support
Accenture
07.2012 - 01.2013
Administration and Monitoring for UNIX, Linux servers
AT&T Wireless
11.2011 - 07.2012
UNIX application analyst and Server production support
Verizon Business
04.2010 - 10.2011
UNIX Administrator
T-Mobile
10.2009 - 04.2010
Master of Science - Telecommunications
BTH University
Bachelor of Technology - Electronics and Communications
JNTU