Overview
--------
I have extensive Unix & Linux System Administration in OPS and DevOps as well
as Automation and software engineering support experience working in various
internationally reputable companies worldwide using:-
Unix Shell scripting (bash,ksh,sh), PERL programming, Oracle and ‘C’
on the following operating system environments:-
Red Hat Enterprise Linux (RHEL), CentOS, Fedora, SLES (Suse) Linux, OpenSuse,
Debian, Ubuntu, Slackware, Solaris 5.6 – 5.11 and HP-UX 9000
Technical Skills
----------------
Operating Systems:-
SuSE (5,7,8,9,11), RedHat Enterprise Linux ES (5,6), CentOS, Fedora Core,
Solaris (2.5 – 5.10), HP-UX 9000, Sequent’s (DynixPTX), SCO, AT&T
Hardware:-
HP DL360, DL380 G3,G4,G5; Fujitsu Siemens Primergy RX300S3, IBM x3650,SUN E420
– E6500, Sunfire, Sunray, Photons, NetApp Filers, SCSI, RAID, Intel x86,
Dell PowerEdge, Compaq
Languages:-
Perl 5, Perl/TK, CGI, dbi, mod_perl, and Expect
Bash, sh, awk, Korn Shell Programming, ‘C’ programming
Databases:-
Oracle 5,6,7,8,8i,9i,10G,11i, MySQL, PostgreSQL, Perl DBI.pm
Development:-
cc, gcc, gdb, imake, autoconf, automake, strace, ltrace, rpmbuild,
Unix Shell, Perl, C, PL/Sql, Developer2000 (Oracle*Forms), Pro*C
svn, cvs, rcs, sccs
Networking:-
Unix TCP/IP Ethernet, DNS, bind, NIS, NFS (amd, automount, autofs), iptables,
ipchains, ipfwadm, ipsec packet filtering, SSH manual Tunnelling, Sendmail.cf
configuration, IMAP, SMTP, pop3
Web:-
Apache httpd 2.0, 2.2, Squid, CGI.pm , mod_perl, mod_ssl
Other:-
VMWare ESX, vSphere, Nagios, LDAP, Kernel config, Tripwire, Bastile, Samba,
Bugzilla, Ant, Sun/Oracle Virtualbox, Xen, qemu
Backup:-
CA BrightStor, Veritas Netbackup, Amanda, BRU
Education and Training
----------------------
ITIL at ESA, Germany
VMWare Server, at Sun Microsystems
Solaris System Administration Level II at Sun Microsystems, USA
Veritas Volume Manager and NetBackup at Sun Microsystems
Perl BrainBench certification (score 3.9/5)
Oracle DBA Level I at Oracle Corporation, USA
University and Post Grad
Post Graduate Honours Diploma in Systems Management (HSM). at NIIT India
Bachelor of Commerce (B.com) at Calcutta University
--------------------------------------------------------------------------------
Employment
----------
Axeda Corporation, Gmbh, DE Automation Engineer(DevOps) May 2013 – Jan 2014
RHEL 6 Linux system administration on Vmware and Xen virtualized systems
for Jboss application servers and automation of processes for provisioning
SaaS cloud services. Deployment and OS builds of servers in the Data
Center. Responding to Nagios alerts, troubleshooting DNS, LDAP, App Server
OS based errors, Apache(http), ActiveMQ, TCP/IP, Ethernet and Oracle RDBMS
based issues.Proactive testing of applications, and liasing with R&D for
transitioning sandboxed to production applications and scripts.
European Space Agency (ESOC), DE Unix System Admin (OPS) Oct 2007 – May 2013
Operations Infrastructure support of Solaris and Linux (SuSe) servers,
performing KickStart configs, Resolving trouble tickets and participating
in Change management for Unix issues based on ITIL, assisting in Oracle
administration and backups, Netbackup, Disk management using mirrors, Ipmp
support of network cards across different physical data centers, On-Call
support, sucurity problem analysis and responding to 2nd level Unix support
issues. Automating existing procedures and writing new projects for the team
in Perl 5 and bash.
Tiscali, UK DevOps Perl Programmer Mar 2005 – Oct 2007
RHEL 5 Linux System Administration and Perl programming for a content
distribution company providing internet and IPTV services across UK. Automated
complete test suites for Content Management. Developed a multi processed
content loader application, a Content analyser application, a front end
processor application status monitor and an application server deloyment tool
all in perl 5. Also developed hpasm activation scripts for Cisco Cnr and
Dhcp servers within the kickstart build. Wrote extensive Iptables scripts
and built new rpm packages spec files for server hardening and security,
network bonding configuration, application pre and post start up scripts all
using rpmbuild and bash.HP DL-[38]0 Server builds using PXE, configuring ILO,
and ACU, server racking and cabling and troubleshooting hardware.
Quadriga Limited, UK Linux Admin (DevOps) Dec 2003 – Mar 2005
Perl and Bash automation for Weblogic application deployments, Ant configs,
Xml parsing, configuring Nagios plugins, Cvs source trees, wrapping Oracle
replication procedures, scheduling backups, troubleshooting any Linux or OS
issue, reporting and documenting the same for management.
Cap Gemini Ernst & Young, UK Unix System Admin (OPS) Jun 2001 – Dec 2003
Solaris Administration, maintenance and support of over 450 unix servers
in o2.com’s data center in a HA and NAS infrastructure. Daily
Ops support for :Solaris DNS, NIS, NFS, SSH, TCP/IP, Apache
HTTP(s),VolumeManagement(VxVM),Cluster(Vcs), Netbackup, and any Solaris
related 2nd level task ( problem or change ). Server Hardening and Operations
Readiness, OS and applications installs and builds in the server room,
Supporting 3rd party apps like Bea Weblogic, Radius, Babelfish, Bluekite, MMS,
Vignette and CriticalPath.Automating existing manual tasks in perl and bash
for entire 1st, 2nd and 3rd level teams. NetApp Filer maintenance.Rewrote an
existing User Management utility from scratch using Perl and Bash to allow
fast seamless creation of multiple user SSH accounts on multiple Unix servers
simultaneously!Authored diverse programs for SMS (Perl,CPAN, Bash shell,
C,Expect.pm)Created a CGI interface with Perl and HTML for User creation,
unlocking, sudo access, and MySQL database of Server specs.
Oracle Corporation, USA Unix System Admin (Dev) Sep 1996 – Mar 2001
Joined Oracle Corporation’s headquarters in Redwood Shores, California
and initially worked as a Oracle forms (Developer 2000 and PL/SQL) support
analyst in the worldwide technical support group, and then moved on to the
support-development group where I was involved in Developing the support
group’s applications (Metalink and ITS). Trained users in the UNIX
operating system using a presentation and hands-on approach which was very
well received by all analysts. I was also the Unix system administrator for
the group because of my Unix Shell scripting and C language skills, and also
assisted our Test center’s System admins with their SUN and LINUX servers.
MSI Software Inc, USA Unix & Oracle Consultant May 1993 – Sep 1996
Joined MSI at its consulting office in California as a Oracle / Unix
Consultant where I was involved in Unix and ’C’programming as well as
Oracle application
development and DBA work for clients across the country on-site.
Client Project
Fujitsu Microelectronics, CA Software Migration from SAP R/3 ERP to Oracle
Oracle Corporation, CA Legacy Tools migration and documentation in ‘C’
Timex Corporation, CT Warehouse Management System in Ksh, ‘C’, SQL
Mervyns Corporation, CA Oracle DBA Data Migration & Rightsizing of a VLDB
UC Davis, CA Student Information System in Sql*Forms3 & Pro*C
Teleflex of (Vanguard), NC Inventory Information System in Sql*Forms 3
Gec-Alsthom, India Unix & ‘C’ Programmer Apr 1989 – Feb 1993
Worked initially for 2 years as junior Unix System Administrator and then was
promoted to Programmer/Analyst programming in Oracle 5, Sql*Forms 2.3, Pro*C,
'C' and bourne shell Unix scripts for an integrated materials manangement system. |