Engineer System

RAHAT ZAMAN

**** ********** **. ******* *****, IL 60089/ *******@*******.***/ 650-***-****

Summary:

Over ten years of application and infrastructure support experience managing applications and infrastructure for government, financial, academic and hi-tech industries that includes production support environment. Strong perseverance and diligence towards attaining challenging goals and possess good communication skills, team oriented and quick learning ability.

Work Experience:

OS and Cloud Technologies: RHEL/Red Hat (LINUX), HPUX, AIX, Solaris (UNIX), Ubuntu, debian, SUSE, Centos, windows, AWS, openstack.

Databases: MySQL, SQL Server, Oracle, MongoDB, Hive

Monitoring tools: Nagios (NRPE), Sitescope, Hyperic, Zabbix, Nimsoft and Zenoss

Automation and build tools: Chef, Puppet, Ansible, Jenkins, Maven

CI Tools: Jenkins, Maven, Ant, Anthill Pro

Virtualization: VMWare, Xen, Proxmox

Utility Tools: Splunk, Wireshark

Version controls: GIT, SVN, CVS, ClearCase, PVCS

Scripting: Shell (bash), Ruby, Python, JavaScript

Basic programming: Java

USG Corp., Chicago, Illinois

Sr. Linux Engineer (August 2016- Present)

RHEL OS upgrade: organization wide RHEL OS upgrade (from RHEL5.x to 6.x/7.3)

OS vulnerability assessment and patching.

Maintained GitHub repositories for DevOps environment: automation code and configuration

Veritas cluster administration, configuration.

HP 3PAR configuration and administration.

Puppet: configuration management for Linux OS and Java applications.

Blackhawk Network, Pleasanton, California

Sr. Linux Engineer (August 2015- July 2016)

Performed remote management using remoto-it, a Plain Old Bash (POB) script that executes recipes to perform deployments, change orders, and maintenance.

Developed BASH scripts to redact sensitive data from Apache access and error logs using a sed expression, deploy WAR files to environments in parallel.

Migrated the current Linux environment to AWS/RHEL Linux environment and used auto scaling feature.

Increasing EBS backed volume storage capacity when the root volume is full using AWS EBS Volume feature.

Created AWS Route53 to route traffic between different regions.

Created users and groups using IAM and assigned individual policies to each group.

Created load balancers (ELB) and used Route53 with failover and latency options for high availability and fault tolerance.

Configured Security group for EC2 Window and Linux instances and also for puppet master and puppet agents.

Massive RHEL OS upgrade: organization wide RHEL OS upgrade (from RHEL5.x to 6.x)

Provided scripting solution for automations includes HA cluster, NFS mounts, autofs and authentication.

Provisioned, built, troubleshot, load balanced and involved in performance enhancement Jboss, WildFly, Apache, HA Proxy and Tomcat servers.

Anthill Pro setup and configuration. Set up GitHub Repository and configured Jenkins for CI processes.

Refined automation components with scripting and configuration management with Ansible.

Worked with developers to ensure new environments both met their requirements and conformed to industry-standard best practices.

Migrate IaaS, PaaS and SaaS instances between public and private clouds - Java, J2EE, .NET, Ruby, LAMP,

Macys.com, San Francisco, California

Sr. Operations Engineer (January 2013- August 2015)

Redhat 4.x-6.x System Administration, operations Support

Redhat Satellite 5.4 and 6.0 Administration, creating and maintaining channels, kickstart profiles and snippets

Chef Implementation, VMware administration, Mass RHEL OS upgrade (over 1000)

Researched and developed Apache 2.2 SSL proxy front end proof of concept that provides SSL encrypted communications between our Tomcat 7 servers and our Apache front-ends.

Developed automation and deployment utilities using Ruby, Bash, Powershell and Python.

Established OpenStack project Infrastructure Program and served as OS integration lead.

Wrote custom monitoring and integrated monitoring methods into deployment processes to develop self-healing solutions.

Implement, installand deploy multi node MapR Hadoop Cluster (Cloudera and Hortonworks), developed HA architecture for Hadoop Eco System components; develop puppet recipes for automation of Hadoop Installation and configuration of nodes.

Planned and executed massive organization wide migration from PureFTPD to SFTP involving 100 over servers.

Planned and executed organization wide massive RHEL OS upgrade (from RHEL4.x to 6.x) on 2500+ servers.

Planned and executed organization wide all security patches (GHOST and Bash vulnerability) over 2500 servers.

Provisioned, built, troubleshot, load balanced and involved in performance enhancement Jboss, Apache and Tomcat servers.

Set up and configured GitHub Repository, Nagios monitoringg and Splunk server.

VMWare ESX and ESXi hypervisor experience with creating and maintaining vSphere environment.

Scripting with shell, powershell for vmware automatic kicking off virtual instances and other system administration task automations.

Riverbed Technology, San Francisco, California

Sr. Linux Systems Engineer (July 2011- December 2012)

Redhat Satellite 5.4 Administration, creating and maintaining channels, kickstart profiles and snippets

Redhat 6.1, 5.4 System Administration, VNware ESXi and JBoss

Created automation and deployment templates for relational and nosql databases (standalone and RDS).

User management with LDAP and setting up Kerberos authentication for cluster and creation of volumes for users and allocating quotas; established NFS gateways on data nodes/NFS mount on edge nodes.

Cisco ASA administration.

System administration task automation related scripting using bash, python and perl.

Code deployment components automation with scripting and configuration with Ansible.

Chef Implementation, Mass RHEL OS upgrade.

Provisioning VMware and NetApp environment for virtual instances. Configuring and monitoring with Zenoss.

Using Puppet for pushing server configuration across distributed virtual server environment.

Setup and configured SVN and GitHub Repository.

Performance enhancement and tuning for Tomcat, Apache and JBoss servers on RHEL6 OS virtual instances.

Used Visual C Studio and MinGW GCC compiler.

Created Build and Build deployment scripts.

IBM AIX & Linux System Administration

Creating and Administering LPAR virtual server on IBM P5 and IBM P7 platform. Configure VIO for LPAR. User management process automation (Bash scripts). EMC storage Administration: Create and mount NFS for local and remote servers. System Admin of RHEL 5.2 and 5.3 servers.

Nokia, Palo Alto, California

Sr. Systems Administrator (September 2010-July 2011)

Linux (RHEL, CentOS, Debian) system administration.

As the Linux administrator, I manage system updates and environment changes in concert with our developers and oversaw the transition from a traditional hardware infrastructure setup to a hosted private cloud solution. Additionally, I use git to manage our custom Puppet modules. JBoss application and Apache web server configuration and administration. Cisco ASA and Juniper firewall administration. NetApp administration: Created filer and NFS mount for local and remote servers. Assists with the addition of Hadoop processing to the IT infrastructure. Used J2EE web services and application (TurboTax) support. Configuring and administrating JBoss, Apache, Tomcat load-balancing. Build monitoring, automation scripting, monitoring and troubleshooting (production and QA environment). Managing/system admin below production environment Linux and Solaris servers. Automated system administration tasks using bash and python scripts.

Satmetrix Systems, San Mateo, California

Sr. Linux System Administrator (July 2008-Sep 2010)

Building, configuring and implementing J2EE web services that include JBoss application server, Apache, Tomcat, load-balancing (with mod_jk and jkmanager). Red Hat Linux system administration (Test and development environment): used Kickstart to install OS in both local and remote data center. Java web application/services monitoring and troubleshooting (production environment). VMware system administration. Puppet administration. Nagios monitoring for 100+ servers and VM instances. Integrated Nagios with Centreon GUI. MySQL database creation and configuration. Setup and configure Chef and Cfengine for non-production level environment server firm. Confluence Wiki application setup, migration and implementation. Worked with developers to ensure new environments both met their requirements and conformed to industry-standard best practices. Used Python scripts for system administration related automations. LAMP administration with Red Hat Linux system administration, Apache HTTPD and Tomcat configuration, MySQL server system administration and Perl scripting for build and process automation. Installing and configuring Apache, Tomcat for JBoss, JMS and J2EE applications. Load balancing using mod_jk for JBoss and configuring Apache front JBoss architecture. sizing up, configuring, backing up and administrating MySQL servers. Installing and configuring Oracle 11g servers. Nagios monitoring for 1500+ servers and VM instances. Administrating Windows servers and Active Directory. Configuring LDAP, SSL and SSH for both Linux and Windows DNS & DHCP environment. Administering VMware ESX, ESXi hypervisor and Infrastructure Client (v 2.5.0) building development data center server firms. Puppet administration creation for VMware production environment. Cfengine administration. Coordinating and conducting massive virtualization of physical servers. Setting up NFS, CIFS SendMail (SMTP) and SNMP and configuring them for application. SVN, Bugzilla, Fortify, Testlink and Wiki (Confluence) configuration.

Defense Manpower Data center (DMDC), DoD, Seaside, California

Web-Oracle Administrator/ Configuration Mgt Engineer (October 2007-July 2008)

Oracle 10g install, configure and administration for both production and various test environments. Oracle 10g and Java J2EE application code deployment (70 applications) in both production and various development and QA environments. Solaris 10 and 9 System Administration –managing user account, ZFS and NFS. Configured and administered Sun System Access Manager (SAM). Worked on feasibility of implementing Eucalyptus on-premise cloud computing. Used Eucalyptus trial version for experimentation to determine Infrastructure as a Service (IaaS). Software Configuration Management (SCM) using CVS, Maven and ClearCase for Java/J2EE.

Hewlett-Packard Co., San Diego, California

Linux& Unix System Administrator (January 2007-October 2007)

System administered following Unix & Linux platform: HPUX 10x/11x, Solaris 5.7-5.10, AIX 4.3/5.1-5.3 (5L), Red Hat ES3, SUSE 9 & 10, FreeBSD. System administered following hardware platform: Intel Itanium, HP PA-RISC, Sun SPARC, IBM RS/6000, IBM PowerPC. System administered huge NIS environment. System administered following blade server platform: HP BL45p-60p, IBM JS20, IBM QS20. Installed OS and patch upgrade, Veritas VM. Used Jumpstart for both local and remote Sun OS install. Configured F5 load balancers for Apache web servers. Worked on setting up cloud computing environment using Eucalyptus cloud computing console (hypervisor). Worked on open source Xen virtualization products (XCI and Xen Cloud platform) to determine cloud computing feasibility. Extensive system monitoring with Nagios. Configured EMC and Hitachi network storage hardware for WAN environment. Configured Veritas, ZFS and Lustre file system clustering. Managed strict SLA oriented environment using HP OpenView Service Desk (OVSD) and HP OpenView ServiceCenter to meet customer demand. Supported application development environment using HP OpenView Operation (HP OVO) for about 1500 users. Used VMware to create, admin and configure multi-OS virtual servers. Worked on HPUX server clustering using HP ServiceGuard and HP ClusterPack (Itanium 2-based HP Integrity servers).

Wells Fargo Services Company, Chandler, Arizona

Application Support Engineer (January 2004- January 2007)

Deployed/ installed Application code (Release) monthly & emergency basis in both production and in multiple test environments. Supported Oracle 9i/8i database includes query writing, oracle instance integration with Java/J2EE application and web engine in both production and in multiple test environments. Managing 24x7 tier-3 level support for extremely busy and complicated production applications. Developed application with Java (J2EE) and java script. Administrated UNIX (Sun Solaris 5.8-5-10) system. Installed Solaris and Linux OS and upgraded OS patch. Setup source control/ configuration management (CM) environment using CVS & ClearCase. Managed strict SLA oriented environment to meet customer demand using ClearQuest. Shell scripting (Perl) for install, monitoring & maintenance processes. Managed test environment BEA WebLogic (8.1) and ATG Dynamo administration

Education:

University of Science & Technology, Beijing: Bachelor of Computer Science.

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