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Andrei S. | Elance
 
176985602337900
Last Sign-in: Dec 5, 2011

Andrei S.

Unix Admin, Perl developer, VOIP engineer
   United States
  |   Denville, NJ

Overview

Minimum Hourly Rate $82

A senior Web and Database developer with advanced database and system skills: MySQL, Oracle DBA, Unix and Linux Systems Administrator and System Integrator, over 12 years experience in financial, pharmaceutical and telecommunication industries.

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Skills (3)

Tested
SCO
VMWARE
IAX2

Service Description

Perl: has in-depth knowledge and experience with Perl techniques like regular expressions, hash and arrays, general data processing, IPC, multi-threads, CGI web applications, automatic web-based scripts and back-ends, email and paging alarms, collecting information from websites (spiders), DBI interface for Oracle, Sybase and MySQL, data compression techniques.

VOIP: up-to-date experience with the open source PBX systems installation and maintenance: Asterisk 1.2, 1.4, 1.6, hands-on PRI/T1/E1, analog Zaptel cards and channel banks configuration, IAX2, SIP, STUN, hardware and software phones, Asterisk GUI, IVR menus, voicemail, custom AGI scripts, reviewing and provisioning connections with VOIP providers, resolving NAT and firewall issues, software phones installations. Fax-to-Email, Email-to-fax gateway configuration based on spandsp and Fax For Asterisk. Monitoring calls using web-based flash panel. Sound files preparation, format conversion.

MySQL: general database development experience and planning, optimized SQL queries, web front-ends with PHP, Perl, Java, utilizing solid ground-breaking approach for database development. Tuning performance issues, bulk data load implementations and automatic backup scripts, handled big tables with millions and billions of records sized in gigabytes and terabytes, under both MyISAM and InnoDb, troubleshooting, complicated cases of slowness and imperfections with database design.

Unix: worked with SunOS, Solaris, HP/UX, SCO, BSDi,...

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  • 12 months
  • Lifetime
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Identity
Username
spassiba
Type
Individual
Member Since
October 2011
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Andrei S. | Elance

Andrei S.