BS Hons., Computer Engineering @
University of Science and Technology Beijing
Over ten years of application and infrastructure support experience worked for government, financial, academic, retail and hi-tech industries. Many years of system administration and engineering experience that includes supporting critical production environment and also various development environments working closely with developers, QA, business analysts and directly with the customers. Experienced and truly seasoned in supporting release management,
Over ten years of application and infrastructure support experience worked for government, financial, academic, retail and hi-tech industries. Many years of system administration and engineering experience that includes supporting critical production environment and also various development environments working closely with developers, QA, business analysts and directly with the customers. Experienced and truly seasoned in supporting release management, SDLC and version control.
Operations Engineer @ 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
OpsCode Chef Implementation, VMware administration, Mass RHEL OS upgrade (over 1000)
Planned and executed massive organization wide migration from PureFTPD to SFTP involving 100 over servers.
Planned and executed organization wide RHEL OS upgrade (from RHEL4.x to 6.x) on 2000+ servers.
Planned and executed organization wide all security patches (GHOST and Bash vulnerability) over 2000 servers.
Provisioned, built, troubleshot, load balanced and involved in performance enhancement Jboss, Apache and Tomcat servers. From January 2013 to Present (3 years) San Francisco Bay AreaSr. Linux System Engineer @ Redhat Satellite 5.4 Administration, creating and maintaining channels, kickstart profiles and snippets
Redhat 6.1, 5.4 System Administration, VNware ESXi and JBoss
RHEL and VMWare ESXi system administration. JBoss 5.2.1, Apache HTTPD, SQID and HAProxy server configuration and implementation in production. Cisco ASA administration.
OpsCode Chef Implementation, Mass RHEL OS upgrade. From March 2012 to December 2012 (10 months) Sr. Systems Engineer @ 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. From September 2010 to April 2011 (8 months) Application Support Engineer @ Building, configuring and implementing J2EE web services that include JBoss application server, Apache, Tomcat, load-balancing (with mod-jk and jkmanage).
RedHat Linux system administration (Test and development environment)
Java web application/services monitoring and trouble shooting (production environment).
VMware system administration.
MySQL database creation and configuration.
Confluence Wiki application setup, migration and implementation. From February 2010 to September 2010 (8 months) Development Systems Administrator @ Production and development environment system administration of RHEL ES 3, 4 and 5 OS.
LAMP administration with RedHat 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
Administrating Windows servers and Active Directory.
Configuring LDAP, SSL and SSH for both Linux and Windows DNS & DHCP environment.
Administering VMware ESX VirtualCenter and Infrastructure Client (v 2.5.0) building
development data center server firms
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 From July 2008 to February 2010 (1 year 8 months) Web-Oracle Administrator/ Configuration Mgt Engineer @ 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
Software Configuration Management (SCM) using CVS, Maven and ClearCase for Java/J2EE. From October 2007 to July 2008 (10 months) Unix System Administrator @ 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; 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). From January 2007 to October 2007 (10 months) Application Support Engineer @ 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 From January 2004 to January 2007 (3 years 1 month) Application Support Engineer @ 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 From January 2004 to January 2007 (3 years 1 month) Systems Engineer @ 500 in-house and 400 remote users, 6 days 24 hour support environment)
Administrated Windows2000 and Linux Redhat ES servers.
Supported Oracle 8i application includes query writing.
Configured and administrated Citrix servers.
Setup and configured router and switches.
Managed Configuration for Behr-Home Depot Kiosk project.
Migrated Novell Netware5 to Windows2000 (File transfer and building of Active Directory).
Documented technical problem and resolution to develop and update IT support database. From January 2003 to December 2003 (1 year) Information System Administrator @ From May 2002 to January 2003 (9 months) Systems Engineer @ Administrated Sun Enterprise-class server environment running Solaris.
Administered Linux Redhat ES server.
Managed services (email, file service, etc.) using NIS, NFS, Sendmail.
Implemented campus wide wireless network (project).
Mentored junior Unix administrators and Microsoft administrators on Unix.
Implemented system to monitor link utilization for a global network, including physical WAN
connections and logical VPN connections.
Administrated Microsoft SMS and Citrix servers.
Supported OpenVMS6/ VAX, Linux (Red-hat ES), MS SQL6 database and system. From February 1999 to November 2001 (2 years 10 months) Data Center System Analyst @ HP-global internal users (1500 user) at 3-tier Asia-Pacific Data Call Center (24x7):
Administrated HP-UNIX (10/11) system and client support (HP OpenView environment).
Implemented user/ activity (Client-Server application) monitoring tools with Maestro, Batchnet, Nerdd
and BLT integrated with Common Operating Environment (COE).
Administrated HP3000 MPE System.
Created and archived technical documentation for user application software and network solutions.
Supported Tier-2 24x7 datacenter system support for North America and Asia Pacific region. From June 1997 to February 1999 (1 year 9 months) Systems Engineer @ Conducted extensive post project telephone based supports (8 Hours x 6 days) to the client.
Migrated Tan Tok Seng Hospital to Windows network from Novell Netware3x/4 (project).
Implemented ATM and FDDI backbone network at National University of Singapore (project).
Implemented user connectivity from backbone (ATM/ Fast Ethernet) to end-user level at
City Development Corporation and Keppel Bank (project).
Coordinated meetings for vendors and clients for solution information gathering (project scope).
III. Technical Skills:
Operating Systems: Windows NT 3.51/4.0, Windows XP, Windows 2000 Professional/ Server/Advanced Server, Windows 98/95/3.x, Sun Solaris, HPUNIX 10.x/11, HPMPE5.5/6 (HP OpenView and OpenVMS.
Networking: LAN, WAN, Ethernet, Fast Ethernet, FDDI, Token Ring, Cisco Aironet (Wireless), ATM and understanding of protocols and their implementation.
Languages: C, C++, Pascal, FORTRAN, Korn Shell, HTML, Java, XML and Assembly Language.
Others: Oracle, MySQL, Apache Tomcat, extensive experience supporting end user with Microsoft Visio, Microsoft Outlook/ Exchange 98/2000 (Associated with MS Exchange Server (Version 5.5/6), IBM Clearcase, CVS, Subversion, WebLogic, ATG Dynamo, Remedy, Clearquest, Nagios and Peoplesoft. From August 1996 to June 1997 (11 months)
Digital Communications @ Nanyang Technological University From 1999 to 2001 BS Hons., Computer Engineering @ University of Science and Technology Beijing From 1991 to 1996 Diploma, Technical Chinese Language (Mandarin) @ Beijing Language Institute Rahat Zaman is skilled in: Unix
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