SUMMARY:

• A System Engineer with 8+ years of experience specialized in Network Administration and Application Support on Redhat - Linux, SUSE Linux, CentOS, Ubuntu, IBM-AIX and Windows environments.
• Strong experience working with various Development & Test teams in an Enterprise level environment.
• Performance tuning of Linux machines in the environment by kernel parameter tuning, identifying process that hog the system resources and containing them.
• Worked in maintaining integrity of Linux, Solaris servers by performing operations on a regular and planned way.
• Working knowledge on Linux productions systems.
• Installation and configuration of Web Application servers like Apache, Tomcat and Web logic.
• Have tested various Linux/Unix Environments in the Development/Test Stages to help create a well standardized environment and resolutions of any problems if any occurred.
• Experienced in documenting various maintenance activities and upgrades and changes in the network architecture.
• Administer RHEL versions 6; 6.3, 6.4, 6.5, 7.0 including troubleshooting both physical and virtual server issues
• Maintained backup/recovery solution for Enterprise applications (ZFS/NDMP) and databases (RMAN); tuned backup system for performance
• Completed annual Disaster Recovery Test for Corporate UNIX/Linux applications.
• Created high-security and high-availability computing platform for Confidential ( Confidential ) to host isolated MS Exchange and SharePoint environment
• Used Hardware Management Console (HMC version 7) to build and partition the P5 and P5+ servers.
• Used puppet to automate the configuration and deployment of application and automating the server configuration process.
• Setting up printers / remote queues / Info-print management Migration upgrades of AIX (433/51/52/53), including system tuning, security, backup, recovery and upgrades of IBM AIX and Linux.
• Configured Volume groups, logical volumes and file systems on Linux
• Installation of patches, Security fixes, packages on AIX, Linux and Windows NT/2000 Servers
• Extended knowledge in installing AIX in an LPAR environment pSeries including configuring VIOS
• Maintain and use NIM Master for installs and upgrades. Plan and implement service updates
• Experience performing LVM tasks like creating Physical volumes, Volume groups, Logical Volumes and file system
• Managing and Monitoring the JVM performance by WebSphere Heap Size, garbage collection
• Experience on Splunk and ELK.
• Extensive experience in Shell scripting using Bash, Python and Powershell
• Experience in Active Directory, GPOs, DNS, DHCP, File & Print Server, IIS, FTP
• Experience in transferring files securely Via the Network - SCP
• Performed migration of Virtual Machines and Virtual machines files using VMotion and Storage VMotion
• Experience installing and updating packages from the network, Remote Repository, or Local Filesystem
• Good Knowledge in bash (shell)/Perl/Python/ scripting
• Strong Working Knowledge of Network Protocols such as TCP/IP and UDP
• Datacenter Operations including hardware, software setup monitoring and troubleshooting
• Good exposure to Storage Solutions like SAN, NAS.
• Experience on NetApp SAS, S, EMC VNX, Hitachi and Pure Storage.
• Windows Active Directory configuration and Management
• Experience on Nagios configuration, Monitoring and services configuration
• Good Knowledge on Puppet/Chef/Ansible configuration and programming
• Good knowledge on Jenkins/JIRA/Docker/Rundeck/Maven/Git/GitHub/Sonarcube Nexus and other DevOps tools configuration and working on issues if any in the configuration
• Experience in Veritas NetBackup Management, scheduling the backup policies and loading the tapes for backup and unloading the tapes

TECHNICAL SKILLS:

Operating System: RedHat Linux 5/6 and 7, Centos 5/6 and 7 SUSE, Ubantu

Microsoft: Windows Server (2008, 2012 and 2016), Windows 7, Windows XP .

Cloud: AWS, EC2, Amazon S3, Amazon Glacier, IAM, Amazon Cloudwatch, Amazon RDS

VMware Product: Design and implement Virtual Infrastructure 5/6 with Virtual Center, ESXi 5.x, ESXi 6.x vMotion, HA, DRS, Resource pools, Virtual Center, ESXi Patch management (VUM)

Storage: iSCSI SAN, FC SAN, NAS, EMC VMAX, NetApp

RAID: RAID Level 0,1, 5 and 6

Configuration Tools: Chef, Ansible, Puppet, CFEngine

Hardware: HP g5/g6/g7 /g8 /g9on C-7000, Cisco UCS B200's B250's M1's M2's, HP460C, HP620c, DL580's DELL PowerEdge R610 and R710

Languages: PowerShell, Bash, Perl, Shell, C++

Racks and Cabling: Installation of Hardware, Cable Management.

Monitoring Tools: Nagios XI. Solar Winds, Pingdom, Zabbix, and Splunk

Network Protocols: HTTP, FTP, SFTP, TCP/IP, SSH, DHCP, SMTP, SNMP, NTP, NFS, DNS, TCPDump / Wireshark, Apache

File System: Ext3, Ext4, XFS

Package Manager: Yum, RPM, Apt Version Control Tool GitHub.

WORK EXPERIENCE:

Linux Administrator

Confidential, Chantilly, VA

Responsibilities:

• Coordinate and consult with end-users, application development, infrastructure, client services, vendors and team members to meet and exceed customer requirements and end-user satisfaction
• Identified protocol problems and strengths, collected data in customer experience to assist in development
• Successfully Installed, configured, and resolved issues with Apache/Tomcat
• Analyze systems, servers, applications, networks and input/output system performance
• Implement appropriate security controls to mitigate risk and threats to the system
• Optimize performance by tuning application server components
• Manages patches configuration and version control via SVN and Nexus
• Deploy ear/war via WebLogic/Tomcat/JBOSS containers
• Verify that backups have occurred correctly; restore necessary files upon request and take part in
• Disaster Recovery procedures as well as overseeing of scheduled power outages
• Manage software installations and patch deployment as required using PDQ software/SCCM
• Optimize performance by tuning application server components
• Utilized F5 Big IP load balancer web interface to control traffic on web servers during system maintenance
• Documented all setup procedures and System Related Policies
• On-call 24/7 for supporting production and system wide outages
• Ongoing industry research and training on current and forthcoming technologies.

Environment: Red hat EL 5.x,6.x & 7.x, Windows Server 2008/2012/2016 , CISCO UCS /HP / DELL Standalone Servers, Python, CISCO UCS 5100 Blade Servers and AWS Cloud Environment.

Linux Administrator

Confidential, Phoenix, AZ

Responsibilities:

• Worked as a system engineer focusing more on Linux servers, Responsible for the planning, designing, installation and configuration of various Linux servers like Redhat and Suse Linux.
• Handled configuration management and workflow development.
• Worked as a part of DevOps team with hands on experience working on various tools like Puppet, Jenkins, GIT, AWS, and Nagios.
• Worked within the Cloud integration processes.
• Worked on installation and configuration of Configuration management tool puppet 3.x, 4.x.
• Deployment and implementation of puppet in Redhat servers.
• Wrote Puppet Manifest files and Modules to deploy automated tasks to multiple servers.
• Implemented Git for version control of puppet modules and process documentation.
• Worked on in-house tool called TAP for build automation.
• Install and configure DHCP, web (Apache, IIS), mail (SMTP, IMAP, POP3), and file servers on Linux servers.
• Created and managed user accounts, security, Access Control Limits (ACL), permissions, disk space and process monitoring in Redhat Linux.
• Worked on AWS cloud, migrated application from physical servers to cloud.
• Hands on experience creating and managing instances in AWS cloud.
• Responsible for Continuous Integration (CI) and Continuous Delivery (CD) process implementation using Jenkins along with Shell scripts to automate routine jobs.
• Automated the deployments using Jenkins.
• Extensively worked on performance tuning of Applications and web servers.
• Monitored Disk & Memory Utilization on Linux 5.1, 6.2
• Installing and setting up Oracle10i and WebSphere on Linux for the development team.
• Implemented Virtualization using VMWare in Linux on HP-DL585.
• Worked on Linux kernel, memory upgrades and swaps area. Red hat Linux Kickstart Installation.
• System performance monitoring and troubleshooting in Linux Environments 5.1, 6.2
• Provided logical design and architecture for the enterprise storage network.
• Installation, Configuration & Upgrade of Linux operating systems running oracle Database.
• Configuration and Administration of DNS, NIS, NIS+, NFS, Auto mount, DHCP, FTP, LDAP, Samba Sendmail, Servers and clients. Security layers like SSL, SSH, HTTPS, SFTP, SSO
• Installation and configuration and maintenance of Jboss and Apache web server.
• Wrote various scripts on Bash, Shell, Ruby.
• Documented backup policies and procedures for backup routines, schedules and restore policies
• Experience with Info Security (Routinely review system and application logs).
• Research and troubleshoot problems on system, security and application logs.
• Automation development skills.
• Experience in integration with tools like LDAP, HRMS, and Finance etc.
• Software installation, maintenance, and upgrades on UNIX and windows environment/Window Active

Environment: Red Hat Enterprise Linux 5.x, 6.x, SUSE Linux, VERITAS Cluster Server, Veritas Volume Manager, Oracle 11g, MS Windows Server, JBoss, Tomcat, Apache, Puppet, Jenkins, Docker, GIT, AWS, Weblogic

Linux Systems Administrator

Confidential, Norristown, PA

Responsibilities:

• Perform core administrative duties such as version upgrades, managing permissions and monitoring the platform to ensure it continually meets performance and availability requirements. support user requests and day to day activities.
• Red hat Jboss EAP/Fuse/AMQ Installation and configuration.
• Red hat JBoss Fuse Installation Fuse 6.1.0 and environment configuration Apache Karaf,
• Middleware Infrastructure metrics usage like Disk throughput/CPU/Mem/pagein/pageout
• Network of Brokers Test cases
• Troubleshooting Middleware application using tread dump, broker log files and taking a heap dump
• Ensuring high availability during patching for application.
• Experience with VMware vSphere virtualization.
• Experience with packaging software for Linux/Unix systems (RPM, DEB, LPP, etc.)
• Worked with Debian 6 to 7 server upgrade
• Worked with creating Virtual Machines and third-party software installation
• Worked on migration from physical to virtual (P2V) environment.
• Tool selection and implementation to support integration with the AIX/Linux platform including Splunk and Puppet.
• Configuration management support for hardware and software leveraging best practices, software packaging, version control systems.
• Manage projects for the implementation of new solutions at client.
• Manage, maintain and support middleware software working closely with developers, third party vendors, and customers to ensure a reliable and scalable platform.
• Creating CIP AND NON-CIP tickets for change in production.
• Installation of TSM on servers.
• Worked with Jboss 6.3.3/6.4.5 installation and RPM patches and security patches and building RPMs for JBoss. Experience with JBoss application stack
• Configured and added a custom repository for the SMT (Subscription Management Tool) used for Suse Install, configure and upgrade different software on Linux machine.
• Support different application infrastructure.
• Highly skilled at troubleshooting complex server, storage, network, DNS, performance and application issues.
• Worked closely with DevOps team on deployment of instance and configuration change.
• Worked on applications like smart log and load cast application, A-MQ and fuse Jboss application.
• Assisted with puppet setup, managed and created modules for software services and configuration systems
• Worked with patching and upgrade with Suse 11, 12.
• Familiarity with GIT or Subversion version control systems
• Familiarity with Disaster Recovery Concepts.
• Knowledge of IBM, NetApp, and/or Brocade SAN and Storage platforms
• System integration experience with Siemens Spectrum based EMS systems.
• Documented the process for future reference.
• Create support ticket with vendor on different application related issue.
• Co-ordinate with different team (Web Services, Storage and Server) to resolve different issue.
• Maintain current knowledge of industry trends and standards.

Environment: Solaris 8/9/10, AIX 4.x/5.x, Windows NT 2003/2000/ XP, NT, RedHat 5, Sun Enterprise 450/420R/250 Servers, Ultra Enterprise 2/1 Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000/20, SPARCstation 10, Sun Sparc Ultra 1,5,10Check MK, Nagios, VMWare and OVM.

Linux System Administrator

Confidential, Coppell, TX

Responsibilities:

• Administered, maintained Red Hat Enterprise Linux 5.X, 4.X, AIX, Ubuntu troubleshooting hardware, operating system, applications & network problems and performance issues.
• Installed, configured and administered AIX 5.1, 5.2, 5.3 & HACMP.
• Deployed latest patches for, Linux and Application servers, performed Red Hat Linux Kernel Tuning.
• Performed Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX, Virtual Center, VM tools.
• Install and configure DHCP, DNS, web (Apache, IIS), mail (SMTP, IMAP, POP3), and file servers on AIX and Red Hat Enterprise Linux servers
• Installing and setting up Oracle9i on Red Hat Linux for the development team
• Installed Web Logic 9i with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Provided production support of Apache and JBoss including installation, configuration, and management and troubleshooting.
• Implemented virtualization using VMware in Red Hat Linux on HP-DL585 and IBM-z/VM series.
• Implemented day-to-day tasks in RHEL that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multi pathing and LVM file system
• Linux kernel, memory upgrades and swaps area and performed Red Hat Linux Kick start installations
• Hardware Maintenance and System Administration of existing RS 6000 running AIX (40 systems in Network)
• Created users, manage user permissions, maintain User & File System quota on Red Hat Enterprise Linux and AIX.
• Experience in Migration of HACMP 4.3.1, 4.5 to HACMP 5.1 using Node-by-Node migration without changing the cluster setup
• Worked on Web servers; JBoss, Tomcat 5.x/4.x/3.x & Apache Server 2.x/1.x

Environment: Red Hat Enterprise Linux 4.x, 5.x, Sun Solaris 8, 9, 10, VERITAS Cluster Server, Veritas Volume Manager, Oracle 11G, Perl, Korn, HP UX, IBM AIX, HP Proliant DL 385, 585 Weblogic, Oracle RAC/ASM, MS Windows 2003 server.

Linux Administrator

Confidential

Responsibilities:

• Worked on major Severities (p1/p2).
• Worked on day-to-day incidents/activities, Change and Problem tickets.
• Worked on Remedy ticketing system to resolve tickets in the queue.
• Experience in changing and implementing the DEV/SANDBOX/UAT/Prod servers.
• Experience in managing services and troubleshooting other related issues which may arise in the environment.
• Providing Solutions and working on the implementation of new projects and requirements.
• Worked on Linux Server Upgrade from OEL4 to OEL5.
• Worked on incremental backup, patching, Kernel upgrades of servers using RPM and YUM.
• Experience in automation of day to day tasks
• Knowledge in creating and Maintenance of Templates/Gold Images in VMware.
• Managing system services using chkconfig utilities (SMF)
• Use VI EDITOR for file editing.
• Installing and configuring APACHE server on Unix/Linux platforms.
• Responsible for system security administration by restricting access to servers and maintaining data integrity.
• Monitoring the use of resources; backs up files as required using local backup utilities like tar, Solaris ufsdump and works with management to define requests for stored information.
• Monitoring system performance and alert logs, Disk, and CPU utilization.

Environment: Red Hat Enterprise Linux, Oracle VM, NIS, NFS, DNS, NAS, FTP and Virtualization, Solaris zones and Windows DL 360 environment. HP Servers - HPE ProLiant, 380 and ml 350e.

Linux Systems Administrator

Confidential

Responsibilities:

• Installing Physical and virtual servers using both interactive and kick start method
• Installation and configuration of ssh service for remote clients
• Writing and editing Bash scripts and scheduling of jobs
• Keeping documentation and editing of company wiki to ensure proper and uniformed information sharing across teams
• Creating users and giving permissions to users and files in different departments in the organization
• Installation, Configuration and maintenance of VMware and also configuring Virtual Machines on the VMware hosts
• Use tools such as top, iostat, vmstat, ps etc for performance analysis, tuning for the betterment of the various applications and services.
• Utilizing monitoring application like Netcool, Amanda and Cacti to monitor servers
• Installing and configuring various services in our LAMP environment. This included Apache and Tomcat.
• Management of automation tools like Puppet, chef and ansible and setting up of both master and clients in all environments. working closely with vendors, Operations and Maintenance teams to support Standard Operations Procedures
• Installation of software patches
• Creating various partitions including swap and LVM and also administering RAID on specified servers to maximize productivity
• 24/7 on call rotation
• Setting up firewall rules to ensure both security and efficiency of systems and applications
• Hardening of servers to prevent attacks and hacking and also generating SSH authenticating keys to secure the environment installing, upgrading and configuring Red Hat Linux 4 and 5 using Kick start and Interactive Installation.
• Changing of file permissions and groups in various departments and using of ACL
• Assigning various jobs to team members using remedy ticketing system
• Configures DNS, NFS, FTP, remote access, and security management.
• Creates Linux Virtual Machines using VMware Virtual Center.
• Installs Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Installs, configures and supports Apache on Linux production servers.
• Manages Patches configuration, version control, service pack and reviews connectivity issues regarding security problem.

Environment: Red Hat Enterprise Linux 5.x,6.x, SUSE Linux, VERITAS Cluster Server, Veritas Volume Manager, Oracle 11g, MS Windows Server, JBoss, Tomcat, Apache, Puppet, Jenkins, Docker, GIT, AWS, Weblogic.