SUMMARY

• Highly qualified systems Engineer offering over 10 years of experience working with UNIX operating systems such as Red hat Linux & IBM AIX contributing innovative methodologies and alternatives to the growth of the company having excellent client relation skills and the drive to complete tasks effectively and efficiently.
• Strong knowledge and experience in system startup, advanced system management,
• Customizing system startup and boot processes.
• Experienced in notifying users on the system - related issues.
• Strong knowledge of kernel components and experienced in manage / query kernel and kernel modules at runtime. Can upgrade and build a new kernel with the use of make menu config.
• Experienced in Shared Storage ISCSI Protocol, can build an ISCSI Target server and ISCSI Initiator, Know how to export a block device using a Fiber Channel SAN and or Ethernet cables.
• Experienced in building Device Mapper Multipathing of LUNS for redundant connection.
• Experienced in building a PXE server for network installations along with DHCP and TFTP servers.
• Experienced in configuring kickstart configuration for unattended installations.
• Experienced in operating and maintaining the Linux filesystem.
• Experienced in creating / configuring filesystem options checking filesystem errors, tuning filesystems and manipulating swap space.
• Experienced in managing Optical Discs creating ISO images with the use of mkisofs and cdrecord utilities.
• Experienced in advanced Disk management. Logical Volume Manager, testing disk performance and adjusting disk parameters.
• Experienced in cluster services using (heartbeat, pacemaker and Redhat cluster suite)
• Experienced in Advanced networking configuration and troubleshooting.
• Experienced in DNS Server configuration, create and maintain DNS Zones.
• Experienced in LDAP Server configuration and Client usage
• Experienced configuring SSH / OpenSSH, familiar with {scp, ssh-copy-id, ssh-keygen and sftp}
• Experienced in configuring FTP / vsftpd.
• Experienced in using Red Hat Package Manager (RPM). YUM configuration and creating local repositories.
• Experienced in configuring File Servers such as NFS.
• Experienced in configuring Web and Email servers Apache, SMTP.
• Experienced in administering the system, manage users and group accounts and related system files.
• Experienced in common backup utilities such as TAR.
• Experienced VMware Virtualization solution, Esxi 5.5, VCenter & vSphere Client.
• Experienced in KVM RHEL Virtualization solution.
• Experienced in LAMP STACK and Application Migration and Upgrade.
• Experienced in Redhat Satellite and or Spacewalk.
• Experienced in building JBoss server environment and administer
• Experienced in automation tools such as Ansible, puppet & Cheff

TECHNICAL SKILLS

Hardware Platforms: IBM P-series, P4, P5, P6, P7, x86, Intel, HP, Dell, Enterprise Servers.

Operating Systems: Red Hat Linux 5, 6&7, CentOS 5, 6&7, Fedora, AIX 5L, AIX 4.3 5.3 6.1, 7.1

Software Packages: SMIT (IBM), DNS, SAN, NAS, OpenLDAP, IPA, Nagios & NagiosXI LAMP STACK, Heartbeat, Veritas cluster (vcs) Apache, Tomcat, Nginx, MRTG, Cacti, Zabbix, ISCSI, NFS, Cluster, SMTP, VMWARE, JBoss, Puppet, Cheff, Ansible

Databases: MySQL, Maria DB, Oracle Installations.

PROFESSIONAL EXPERIENCE

Confidential

Sr. Linux Engineer

Responsibilities:

• Responsible for provisioning Linux servers (Red Hat) for various environments.
• Responsible for maintaining over 3000 virtual servers and physical servers.
• Troubleshooting various issues related to Linux VMware Ansible for e.g. networking, black screen, servers dropping off network, etc.
• Helped resolve issues with physical servers, worked with Dell support.
• Working in a fast passed environment meeting deadlines with clients to provision new machines
• Installed configured Veritas High availability cluster (VCS)
• Automated installation & configuration of various applications using Ansible such as Tsm-agent, Rhel Repositories, CyberArk, SSO, Rapid7, Nagios, etc. On Linux servers.
• Worked with physical Linux servers; configured networking, storage (multipath | SAN) on a regular basis.
• Helped rack servers at the Datacenter.
• On a regular ON-CALL rotation which occurs every other month.

Confidential

Sr. Redhat Linux Engineer

Responsibilities:

• Worked as a Sr. Redhat Linux Engineer independently directly under a manager/director.
• Responsible for managing all servers, (VM’s and physical servers).
• Responsible for VMware management and maintenance.
• Responsible for all Linux application issues such as DNS, Nagios and LDAP to name a few.
• Responsible for any performance issues and storage management on Linux servers.
• Worked on various issues with physical hosts in a VMware cluster.
• Troubleshoot and resolved problems with VMware hosts not seeing storage. Worked with SAN NetAPP support to resolve issues.
• Worked with Veritas cluster services; configuring cluster services, troubleshooting issues with the cluster resources not functioning and services not being active.
• Applied patches, VMware patches and HP patches both via cli and using the “baseline”.
• Troubleshoot and resolved multiple problems with LDAP clients, worked on multiple servers and resolved various issues.
• Troubleshoot and resolved Nagios alerts in regards to serves, applications, storage and services.
• Troubleshoot and resolved problems with Nagios false alerts. Researched on how the Nagios server is setup and configured. Made documentation accordingly.
• Troubleshoot and resolved problems with DNS server.
• Researched on how the DNS server is set up in the Environment.
• Responsible for new code deployment’s to the web servers and changes to database servers (MySQL).
• Execute 2-3 code pushes on a daily basis. Code pushes is usually a process from dev - stage and then to live (Deployment).
• Coordinate with QA teams and DevOps to work on issues.
• Responsible for redirecting web pages and cache purge.
• Responsible for any issues that may come up in Linux and or VMware.
• Used Puppet to create automation resources, manifests and troubleshoot any issues.
• Oprah.com is a high traffic web site that is load balanced in conjunction with Akamai, Manager handles Akamai I was responsible for redirects and cache purge. Load balance was handled by networking team but I am familiar with it.
• Monitored web site traffic with an in-built application. Monitored number of visits, bounce rate, location, visitor flow and common Error codes.

Confidential

Linux Systems Engineer

Responsibilities:

• Datacenter Migration Project. Embanet is the premier provider of online learning services and technological solutions for top-tier academic institutions. Confidential bought Embanet and the project was to migrate online learning management system (LMS) called Moodle.
• Responsible for building LAMP STACK, although Linux server were deployed by the server build team.
• Installed Apache, MySQL and required php packages in order to run the application (Moodle) In Linux Redhat/CentOS.
• Configured MySQL initial setup and created databases and users on a Linux server.
• Experienced in build, install and configure MySQL server on Linux. Also experienced in building databases and tables and running queries on MySQL.
• Built Email Relay server’s (SMTP) on Linux. Configured email relay. This email server was responsible for relaying to a smart host of any email sent via the application (Moodle).
• After the LAMP STACK is build migrated data using rsync in Linux and used winscp if it is Windows to Linux migration.
• Performed Web Server migrations and MySQL Server Migrations.
• Configured web server to talk to MySQL server. Moodle application saves and fetches data from SQL server.
• Worked with F5 team and Networking team to load balance web application.
• Performed test migrations and worked on issues found by QA on the web application (Moodle). Identified issues solved or involved appropriate teams to solve them.
• Performed re-sync’s of data in a timely manner before the cutoff date, (real migration date).
• Work with Firewall team and BIG IP team to resolve any external IP issues.
• Advised Project Manager of how to go about resolving arising issues and directed him to contact and involve the right team from the client side. For example DNS issues and the server is owned by the client, external authentication and LDAP is owned by the client. Explained project process on a height level of how this operation works on a technical level and what we need.
• Installed puppet client application and configured to talk to the master puppet server.
• Performed application upgrade and migrate on Redhat /CentOS.
• Created technical document on migration process and also created a pre-migration checklist.
• Attended daily meetings with various teams involved in this project to work on issues provide updates and plan migrations.
• Successfully migrated 15 universities so far.

Confidential

Linux Engineer

Responsibilities:

• Deployed Red hat Linux servers & Susie Linux in VMware, configured network
• Responsible for implementing Linux server in a windows environment.
• Deployed Apache web servers.
• Deployed DNS and DHCP, TFTP server’s, set up kick start installations.
• Provisioned 2 node Veritas High availability cluster (VCS).
• Provisioned Puppet master server (Automation Software) server and clients. Created manifests, resources such as file resource, package resource, service and group resources.
• Deployed LDAP server with a web interface.
• Used bash scripts to automate tasks.
• Deployed MySQL servers and created databases.
• Deployed Red Hat Satellite Server (Spacewalk).
• Deployed and implemented ISCSI servers implemented multipathing.
• Helped with security such as writing firewall rules and tightening file permissions.
• Responsible for user management and troubleshooting any problems with Red hat servers.
• Created web clusters using heartbeat.
• Created web cluster using Redhat Cluster suite along with clvm and GFS shared storage.

Confidential

UNIX Engineer

Responsibilities:

• Deployed Development LPAR’S by HMC on the Power servers according to the resource demands from the other teams.
• Performed mapping of the VIO servers and VIO clients for the virtualization of adapters, processors and memory
• Carved storage disks from shared storage pool and mapped to the client from both the VIO servers.
• Created mksysb image for BOS installation.
• Created Source and Spot for AIX .
• Used IP Scan to identify unused IP address.
• Worked with DNS team to create a fully qualified domain name and assign IP address to the new clients.
• Performed mksysb install’s using NIM server.
• Scheduled cron jobs for mksysb backups.
• Used korn scripts to automate tasks.
• Remotely accessed AMFS Auto Mounted File system.
• Worked on TCP/IP configuration, IP address assigning, network interface configuration, static route creation, assigning gateway for two different networks, host name resolution, changing IP address.
• Performed other administrative tasks as directed by the manager.
• Involved in building and configuring DNS server with Linux administrators on rhel6 (Red Hat).
• Helped Linux team with resolving network issues, troubleshooting network problems.
• Involved in administration configuration of NFS, FTP & LDAP server in Red Hat Linux.
• Used python and bash scripts to automate tasks.
• Helped with administering and building Apache servers, virtual hosting.
• Involved in building a PXE server for network installations and kickstart.
• Used puppet to automate service resources, package resources and create manifests.
• Provided system performance reporting on a regular basis along with keeping all software at current version levels and maintaining a log of changes for tracking.
• Helped with Documentation of disaster recovery and deployment methods.
• Maintained personal documents of procedures performed at work.
• Built lamp stacks for web applications.
• Supported various server applications on Linux platform (Redhat / CentOS).