Expert System and Cloud Administrator

  Professional
Expert System Admin with 15 + years of experience.
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Last 6 months All Categories
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Keywords

Linux
Unix
Cloud Computing
Virtualization
Windows
Username: aserdp
Minimum Hourly Rate: $20/hr
Location: India, Karnataka, Bangalore

Summary

Outstanding, highly motivated, and well-accomplished professional, with sophisticated technical skills and passion for resolving complex problems and business challenges through innovation; progressed through analytical and applications work. Proven experience in complex project management solutions and strong work ethic, coupled with flexibility to adapt to all technical environments. Adept at maintaining focus on achieving bottom-line results, while formulating and implementing advanced technology and business solutions to meet a diversity of needs. Possesses strong analytical and problem solving skills. Career history includes various examples of creative solutions using available tools and technologies.

Experience

Skills

Self-rated
Tested More Info
Elance Admission Test
Passed
More Info
Amazon Web Services
|
Avg.
Redhat Linux 9.0 Admin
|
Avg.
Redhat Linux 9.0 General
|
Avg.
Linux
|
Avg.
Unix
|
Avg.
Windows Server 2008
TCP/IP
LAMP
Unix Shell Script

Employment

Remote System Support
2005-Present - CEO and Founder
Started a Linux and Unix System Administration firm with the aim of providing top notch support in all domains.
Indian Institute of Science
2000-2005 - System and Network Administrator

About Me

Profile Type: Individual
Year Founded: 1994
Number of Employees: 1
Key Skill Sets (in a nutshell)
* OS: Expertise in Linux, Unix and Windows
o Linux distribution and kernel: Have command over almost all linux distributions and have over 15 years of extensive experience with kernel and kernel internals.
o Unix : Have command over OpenSolaris, FreeBSD and OpenBSD
o Windows: Expertise in Windows Servers and SBS
* I have expertise in high-availability and load-balancing setups on several platforms including dedicated servers, virtualisation server pool, Amazon EC2/Rackspace/Gogrid.
* I have deployed such several installations for very high load environments. In this area I have expertise in LVS, HAProxy, Nginx, lighttpd, Squid, MySQL Cluster and master-slave/master-master replication, sharded databases, Postgresql cluster, DRBD, mail setup failover, DNS clustering and HA, tomcat cluster, glassfish cluster, jboss cluster , mongrel cluster and many other solutions.
* I have deployed several automation setups based on Puppet, capistrano, controltier, Perforce, cfengine/pcfengine, quattor, isconf, smartfrog,
* Automated roll out of servers usings PXE server/TFTP, system imager/system configurator, cobbler, fastdeploy
* Virtualisation expert with expertise in KVM, OpenVZ, Xen, VirtualBox, VirtualIron, vmware (server, ESX/ESXi, Workstation, Vmware infrastruture (VI3)), linux vserver
* Cloud Computing Environments like Amazon EC2, S3, Cloudfront, Mediatemple, Gogrid, rightscale, scalr, elastra, mosso, flexiscale
* Cloud Computing Applications like Vmware VSphere, 3tera, Eucalyptus, Enonamlism, OpenNebula, OpenQRM, Xen Cloud (Xen App, XenServer, XenDesktop).
* Distributed file systems like NFS, GFS, CodaFS, luster, glusterfs, cloudstore, hadoop, OCFS, etc
* I have expertise in server optimisation, server security and high load performance tuning for LAMP and related applications.
* Have extensive experience in many control panels namely Plesk, Cpanel/WHMCS, ISPConfig, SysCP, DirectAdmin, Webmin/virtualmin, and others
* I have hold on server security, IDS based systems and server hardening, iptables, pfsense.
* I have expertise in many protocols incluing CARP/VRRP, etc
* I have deployed several mail setup based on different authentications based on Postfix/Sendmail/Exim/Qmail and Courier/Cyrus/V-Popmail
* I have deployed many remote monitoring setups based on Nagios, OpenNMS, Zabbix, Monit, Cacti, etc.
* I have developed very unique development environments using CVS, Subversion, Trac.
* Scripting: Bash/Shell, Python and Perl.
* Backup system: rsync based scripts, custom based script, bacula, zamanda and many others.
* Have thorough knowledge with sphinx, lucene, xapian, memcache/memcachedb, messaging queues, mongrel, varnish, ganglia.
* Experience with hypertable, mapreduce, bigtable, couchdb, scalaris

Detailed Service Description

I have been a Lead System Administrator for the last 15 years and hold expertise in Linux and Windows Administrations. I have worked with almost all virtualization technologies namely Vmware (Vmware server, ESX/ESXi, Workstation, Vmware infrastruture (VI3), Vsphere), Xen, KVM, OpenVZ, VirtualBox, VirtualIron and others. I have deployed several large scale setups with failover/high-availability, load balancing and auto-scaling on the Cloud namely Amazon EC2, Gogrid, Rackspace (Mosso) and others.

Linux System Administration:
======================
I have over 15 years of experience in the Linux/Unix Administration. During this tenture, I have worked with almost all technologies (advanced) under Linux and Unix Framework. I have deployed several large and scalable clusters on the Linux (dedicated server and with virtualization).

I have command over Server and Application Optimization, Backup Solutions, Application Deployment, Cluster design (LAMP, Tomcat/Jboss/Glassfish, Mongrel, Postgresql and many others), Security hardening and IDS, Server Monitoring, etc.

Windows System Administration:
=========================
I have over 10 years of experience in Windows Administration (Windows Servers and Windows SBS), Exchange Servers, Blackberry Servers, Active Domain/Directory Services, IIS, .NET, WAMP(windows apache mysql php), FTP servers, application deployment, Hardening and Security, and many other administration duties.

Virtualization:
==========
I hold a mastery on almost all the virtualization technologies namely vmware (Vmware server, ESX/ESXi, Workstation, Vmware infrastruture (VI3), Vsphere), KVM, OpenVZ, XenServer, XenApp, XenDesktop, VirtualBox, VirtualIron, linux vserver.

I have deployed many virtualized farms using vmware technology for scalable setups, deployed the Vmware Vsphere as well as the Xen Cloud (C3) for a private Cloud. These private clouds were geographically redundant, either with cloned deployments in different datacenters or with the public cloud like Amazon/Gogrid/Rackspace/Joyent. The integration of this hybrid system was a challenge and was accomplished with precision.

I have developed many vmware certified appliance, optimized DomU Xen and OpenVZ templates for various clients and hosting providers. Have deployed blackbox appliance, where a client could just turn on the virtual machine and get going instantly.

Cloud Computing:
==============
I have been one of the first who has started to work with public clouds like Amazon EC2, Gogrid, Rackspace and Joyent.

I have deployed several large scalable (auto-scaling), fully redundant (SLA 99.99999%) and loadbalanced setups. The setups had several services and application and each tier/service was highly-available and loadbalanced. I have developed many AMI’s on Amazon EC2 (most of them are for the clients and hence they are private AMI’s). On the Amazon I have used all the setups that it supports namely EC2, EBS, RDS, CloudFront, FBS, ELB, etc

I have deployed many internal clouds for hosting providers based on like Vmware VSphere, 3tera, Eucalyptus, Enonamlism, OpenNebula and OpenQRM. Also as noted above to achieve a SLA of 99.99999%, we created a hybrid cloud with backend/failover cloud. The failover cloud was either a cloned setup in a different datacenter or in conjunction with the public cloud like Amazon/Gogrid/Rackspace/Joyent

One of the massive deployments on Amazon EC2 for reference now runs over 318 instances with various tiers and application servers. It is programmed to auto-correct, auto-scale and be efficient both with cost as well as resource utilization. Today it supports over 2 million transactions per sec and handles a traffic over 3 GBps.

Credentials

Certifications
BrainBench, Linux Administration (RHEL 5)
Awarded: 2008
Education
Indian Institute of Science, Doctor of Philosophy (Aerospace Engineering)
2003 - 2006
Indian Institute of Science, Master of Science in Engineering (Aerospace Engineering)
2001 - 2003
Gogte Institute of Technology, Bachelor of Engineering (Mechanical Engineering)
1995 - 1999
My Elance URL
 
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Member Since:
Jan 2008
Last Sign-In:
Mar 20, 2010
Last Feedback:
Dec 18, 2009
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