SUMMARY:

• Over 8 years of experience specialized in System Administration/Engineer, working in Red hat Enterprise Linux, CentOS, Ubuntu and windows environments
• Well - versed in Installation, Configuration and Maintenance of Linux and Sun Solaris servers
• Experience in maintaining vSphere vcenter 6.0, Exsi 6.0, vRealize Automation, vRealize Operations Manager, vRealize Orchestrator in a Vmware virtualized environment
• Installs and configures Red hat Enterprise Linux 4.x, 5.x, 6.7,7.1 using Kickstart Servers and Interactive Installation
• Work with Database Administrators to tune kernel for Oracle Installations
• Create and manages user accounts, security, rights, disk space and process monitoring in Red hat Linux
• Administration of NFS, DNS, LDAP, HTTP, DHCP, ftp, remote access management and security troubleshooting skills
• Windows administration, Install, configure and maintain windows server 2003/2008/2012
• Experience installing and configuring Apache Server 1.x, 2.x, & Tomcat 3.x, 4.x
• Administration of VMware Infrastructure, Vcenter 6.0, Exsi 6.0
• Installs and creates Oracle database 10g and 11g
• Experience working in AWS cloud environment
• Hands on experience with Puppet
• Hands on experience with Nessus
• Experience in scheduling jobs and administrative tasks using Cron
• Skilled user of various tools like up-scan, Nexus, Nagios to check for security vulnerabilities, and alerts
• Utilize Bash and Pearl scripts to automate system administration tasks
• Experience in monitoring and troubleshooting network related issues in Unix/Linux environments
• Install, configure and manages MySQL database
• Experience in managing data center operations

TECHNICAL SKILLS:

OPERATING SYSTEMS: RHEL/5/6/7 Sun Solaris Release 9, 10 and 11, Windows 2008

HARDWARE: Dell PowerEdge R720, R920, HP Proliant, Blade servers, Sun Servers E450, E4500, E5000, E6000, E10k, E15k, E25k

SOFTWARE: MS Office, MS-Project, Tomcat, Web/Application Server, Apache, Oracle

NETWORK PROTOCOLS: DNS, NFS, DHCP, NTP, LDAP

PROFESSIONAL EXPERIENCE:

Confidential

Snr Linux/VMware Engineer

• Schedule and performs software installations and upgrades to operating systems and software packages. ( mysql, apache2, openssl, php, sunbelt, netbackup client,Trend Micro)
• Monitor and tune Red hat Enterprise Linux, Ubuntu and Windows systems to achieve optimum performance levels
• Schedules and apply patch releases on ESXi hypervisors with Update Manager to meet security compliance
• Manages Red hat systems with Satelite server 6.0
• Installs Bug Fixes on production and test servers
• Have assembled and built HP Proliant DL380 Gen9 servers from scratch
• Upgraded hypervisors running on ESXi 5.5 to version 6.0
• Installed and configured SNMP-Collector on Red hat Enterprise Linux server 7.1
• Configures Identity Access Management (IAM) for deployments, launches EC2 instances in AWS Web Console, creates and manages virtual public cloud (VPC), creates Amazon Machine Images (AMI’s), configures elastic load balancer, Set’s up cloud trail, creates S3 back up
• Utilize puppet to configure and manage web servers, and software deployment across multiple application servers
• Assist business groups to deploy virtual machines into IMS Cloud environment
• Creates LUNS/Data-stores and make it available to hypervisors hosting mission critical application servers
• Coordinates with backup administrators to ensure all systems are backed up regularly
• Works with Nessus to scan sytems for vulnerabilities, and prepares remmediation plans to fix any security issues found
• Prepares and post documentations of all processes at the Wiki site
• Create and complete project plans within budgetary constraints
• Work with other departments to create effective and supportable computing solutions to meet business requirements
• Exceptional analytical and troubleshooting skills
• Able to work as part of a team, and independently with little or no supervision
• Provides 24/hour weekends on call support

Environment: Red Hat Enterprise Linux 6.7/7.2, Windows 2008/2012, apache2, VMware vCenter 6.0, Esxi 6.0, vRealize Automation 6.0, vRealize Operation Manager, vRealize Orchestrator, Red hat Satelite Server 6.0, Nagios, Oracle Database 11g, MySQL

Confidential

Snr Linux Engineer

• Installed, configured, developed and maintained Red hat Enterprise and Sun Solaris operating systems and software.
• Maintained security patches as regulated by SSA and participated on security panels to make sure server updates were correct and reported back when findings were disimillar
• Maintained and supported production, test and development environments
• Analyzed performance of Unix/Linux hardware systems and recommended steps for improvements.
• Troubleshoot 'level 3' problems by debugging scripts, opening cases with hardware or software vendor and/or looking at diagnostic tools for hardware, software and capacity related problems.
• Maintained backups, provided system restorations when needed and preparation for disaster recovery
• Installed and configured Splunk, Smarts, SMC, cacti for collecting and monitoring system logs for routers, switches and other network devices
• Configured Transmission Control Protocol (TCP/IP) and Lan networks in an Ethernet environment
• Installed, tested, implemented and maintained vendor application software releases
• Schedules and apply patch releases on ESXi hypervisors with Update Manager to meet security compliance
• Upgraded hypervisors running on ESXi 5.5 to version 6.0
• Documented problem resolution, software updates, configuration, and operational procedures in order to perform knowledge transfer to other SSA personnel on related software
• Worked independently and as part of a team of 8 to identify user needs, and present findings and recommendations
• Entered changes and status updates on scripting work into the NMST source control and tracking application, Trac, for documenting and tracking changes to the various scripts and configurations
• Used HP's change, asset and problem reporting system (CAPRS) to submit requests to make changes and respond to problem tickets
• Built and customized Perl modules to suite SSA environment using rpm
• Worked with Database Administrators to prepare Linux and Windows servers for oracle installation in production environment
• Hands-on experience with puppet to configure and manage multiple servers and software
• Experience in installing and configuring Nagios and Munin for systems monitoring

Environment: Red Hat Enterprise Linux 6.7/7.2, Sun Solaris 10/11, Windows 2008/2012, apache, VMware vCenter 6.0, Esxi 6.0, Red hat Satelite Server, Nagios, Munin, Oracle Database 11g, MySQL

Confidential

Linux/Software Administrator

• Provided administrative and technical support to critical application servers, including troubleshooting, performance tuning and monitoring production servers with tools like Nagios and Linux commands
• Responsible for the administration and maintenance of production software: Revolution R Enterprise 7.1(R version 3.0.2 "Frisbee Sailing") and Active Python 2.7.6.11 on Red Hat Enterprise 6.4
• Implemented new features, configured and customized new and existing software products, created and maintained software/ file security (internal and external), developed automatic routines to enhance production tasks eliminating manual intervention tasks
• Modified, maintained, improved and troubleshoot existing software.
• Worked with vendors (on-shore and off-shore) to customize new softwares, heavy customer interaction.
• Worked with Data Science team to deploy codes on production servers
• Coordinated global support with Science IT
• Developed bash shell scripts to monitor and report file system utilization, user login activities, cleaned up log files in /var/log, and to back up essential files and directories
• Created kickstart file to automate installation of Red hat Enterprise Linux
• Used essential tools for handling files, directories, command-line environments and documentation.
• Configured local storage file systems within partitions and logical volumes
• Deployed, configured and maintained systems, including software installation, updates, and core services, patch management support and application verification.
• Managed users, groups, including use of a centralized directory for authentication
• Interfaced with model teams for level 2 support
• Managed Revolution R Packages Repositories and CRAN administration

Environment: Red Hat Enterprise Linux, Solaris, Windows, apache, VMware Exsi 5.0, DNS, NFS, environment was 75% virtualized, AWS cloud

Confidential

Linux/Unix system Administrator

• Created Linux Virtual machines, templates using Vmware vSphere client 3.5 and migrating servers between ESXi hosts.
• Managed systems routine backup, scheduling jobs, enabling cron jobs, enabling system logging and network logging of servers for maintenance.
• RPM and YUM package installations, patch and other server management.
• Created physical volumes, volume groups and logical volume.
• Installed and configured and managed VMware ESXI 5.0 hypervisor
• Created and managed user and group accounts, security, rights, disk space and process monitoring in Solaris and Red Hat Enterprise Linux.
• Installed and configured Apache and supporting them on Linux production servers.
• Troubleshoot the network issues and response problems.
• Installed and configured Logical volume manager-LVM and Net-backup.
• Worked with Nagios Network management and System monitoring tools.
• Documented all the setup procedures and System related Policies (SOP's).
• Configured DNS, NFS, NTP, ftp on Linux servers.
• Utilized Bash scripts to automate system administration tasks.
• Installed firmware upgrades, kernel patches, systems configuration, performance tuning on Linux/Centos systems.
• Created Linux virtual Machines using Vmware virtual center, Vsphere client..
• Provided 24/7 technical support to Production and development environments
• Run backed-up on servers before applying patches
• Experience generating documentation on processes

Environment: Solaris, Red Hat Linux, Apache, VMWare, Net-backup, Nagios, RPM, Yum, DNS, NFS, NTP, FTP

Confidential

Linux/Unix System Administrator

• Installed Implemented and configured VMware ESXi server 4.0 on HP Proliant DL 360G5 to promote virtualization.
• Installed Red Hat Linux 5 and CentOS using kickstart on HP, dell and sun servers.
• Oversaw the tuning and performance monitoring of HP-UX/Linux servers and peripherals.
• Provided monthly maintenance on various Linux and Unix flavors (SUSE, Red Hat Enterprise, Centos).
• Utilized puppet for system configuration
• Experience in writing shell scripts to automate the administrative tasks and management using cron.
• Installed firmware upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux servers.
• Created and managed user and group accounts.
• Configured DNS, NFS, ftp, remote access, and security management.
• Participated in on call rotation to provide 24/7 technical support for Linux infrastructure.

*ENVIRONMENT: Red Hat Linux, Apache, VMWare, Yum, RPM, DNS, NFS, NTP

Confidential

Jnr Linux Administrator/ Help desk Support

• Installed, configured, and administered Red hat Enterprise 4/5 using kickstart.
• Worked and performed data-center operations including rack mounting, cabling.
• Administrated DHCP, DNS, and NFS services in Linux.
• Created and maintained user accounts, profiles, security, rights, disk space and process monitoring.
• Created new groups and tested first in development, QA boxes and then implemented the same in production servers.
• Troubleshoot Day-to-Day issues with various servers on different platforms.
• Installed antivirus Softwares on the servers for protection
• Run system backup before patches are applied.
• Performed PC support and maintenance for over 200 people
• Managed call center activities to meet service level agreements

Environment: Apache, VMWare, Red Hat Enterprise Linux, Solaris, DNS, NFS, NTP, Ftp, Nagios

Confidential

Windows/Network Administrator

• Installed and configured windows servers
• Worked with network engineers to automate the bank's workload provided technical support to assist in training employees to better understand working with hardware and software
• Actively involved in all decisions by the IT department to link all the 153 branches together through network
• Performed system configuration, patches, troubleshooting and backup and recovery
• Created and managed numerous user accounts and provided security to the systems