Objective
Seeking position of a Senior Unix System/Network Administrator utilizing 13 years experience with multiple Unix platforms and diverse network equipment.
Skills
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13 years work experience in ISP and Telecommunication companies with multiple Unix platforms and different network equipment.
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Strong theoretical knowledge and comprehensive practical experience in
Unix system administration and programming; including (but not limited
to) FreeBSD, BSD/OS, AIX, Linux, SunOS, Solaris, Digital Unix, MacOS X.
DNS, httpd (Apache, authorization, virtual domains, IBM HTTP Server),
RADIUS (with own patches for PostgreSQL and MySQL), FTP, Proxy,
gated (RIP, RIP2, BGP4), pppd (server and client side, own patch for dynamic IP),
identd, mail system (sendmail including patches, virtual domains,
masquerade) POP3 and IMAP servers. Some hacks for FreeBSD kernel,
IRCd, News(innd), BIND, mrtg, ntpd, Nagios monitoring tool (next generation of NetSaint), firewalls, IP-nating/masquerade.
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Programming with C/C++, Perl, PHP, awk and shell for Unix,
Borland C++ and IBM C++ for OS/2, Borland C and Assembler for MS/DOS.
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IBM SSA Disk Storage
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Sendmail, Postfix, CriticalPath, CommuniGate, IronMail.
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Oracle, PostgreSQL, MySQL, WebSphere, LDAP, HACMP clusters.
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SGML, XML, HTML.
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Comprehensive hands-on experience with various network hardware (Cisco, Intel, ATI, Lucent).
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routing in TCP/IP networks (BGP4, RIP2); network security (Cisco, RADIUS).
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Strong skills preparing formal documentation.
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Fast learner.
Employment history
Weill Cornell Medical College in Qatar
Doha, Qatar
http://www.qatar-med.cornell.edu
Apr 2005 - Present
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Installation and support WebSphere Portal 5.x cluster
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Support CommuniGate+sendmail based mail system
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SunOne LDAP
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FreeBSD, Linux, AIX, Solaris, MacOSX
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developed CommuniGate Pro serverside rules plugin for SquirrelMail
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deployed F5 BIG-IP LTM LoadBalancer cluster
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deployed IronMail cluster
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performing different day to day scripting tasks
Orange A/S Denmark
Copenhagen, Denmark
http://www.orange.dk
Jun 2004 - Mar 2005
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Handling large park of Unix servers (more than 150 FreeBSD and Linux boxes) including: mail, DNS, WWW, News, Radius, NIS, proxy, MySQL, CVS - tuning system parameters, system upgrades.
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Handling various network equipment - Cisco, Lucent, etc. - tuning parameters, software updates
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Implementation of HP OpenView based monitoring for Unix servers.
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Implementation and handling of antispam greylisting server (with custom patch for greylist daemon and greylist stored in MySQL database) on myorange.dk portal.
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Making a patch for procmail for Maildir++ support.
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Different C/C++, Perl, PHP, awk and sh coding.
Orange World Services A/S
Copenhagen, Denmark
http://www.orange.dk
Jan 2003 - May 2004
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Installation and handling e-mail web/wap solution for Orange Netherland (former Dutchtone) based on WebSphere, Oracle, CriticalPath running on 2 HACMP clusters on AIX 4.3.3.
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Providing assistance for installation and further support of IBM e-shop server, based on WebSphere, Oracle, IBM-HTTPServer, running on AIX 5.1.
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Supervising Local IP registry (LIR dk.owservices).
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Preparing a lot of hand over documentation.
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Providing assistance in different servers migrations.
Orange A/S (former Mobilix A/S)
Copenhagen, Denmark
http://www.orange.dk
Dec 2000 - Dec 2002
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Planning and coordinating work of Unix servers park (FreeBSD, Linux) including DNS, mail (sendmail and postfix), web (apache, apache2), proxy (squid), MySQL.
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Development of custom patch for procmail for soft-quotas support.
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Development, installation and handling of RADIUS for ADSL (with custom patches for MySQL authorization).
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Development, installation and handling of NTP servers including one server with GPS receiver (stratum 1) and 3 stratum-2 servers.
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Providing assistance to field engineers for mission-critical tasks.
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Supervising Local IP registry (LIR dk.mobilix).
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Developing and support backend for mail platform, based on Postfix and Cyrus IMAP server with MySQL authorization. Applying antispam greylisting solution.
ISP Telnet Ltd.
Odessa, Ukraine
http://www.uptel.net
Aug 1994 - Nov 2000
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Development from scratch and handling of Internet node. Node consists of CISCO routers, mail, WWW and FTP servers, proxy server, dial-up pool based on MAX-4000 (by Ascend) dialup server and RADIUS server.
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Development, installation and support of PostgreSQL database for mail- and dialup-customers authorization.
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Development, installation and support of dialup RADIUS server with authorization against PostgreSQL database. (patches for RADIUSd).
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Development, installation ing and support of sendmail based mail subsystem with authorization against PostgreSQL database.
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Customer consulting.
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Supervising Local IP registry (LIR ua.telnet).
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Development, installation and support of TelexGate to cc:Mail, FaxServer, FaxGate to cc:Mail, SMTPGate to cc:Mail for OS/2 (C/C++).
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Porting Zmodem protocol for OS/2 (C/C++).
Education
IBM WebSphere Portal Version 5.1 Installation, Deployment, and Administration training
Parsippany, NJ, US
Dec 2006
HACMP System Administration training
Copenhagen, Denmark
Oct 2003
Portal Server (WebSphere) v4.1 Administration
Copenhagen, Denmark
3 Mar 2003 - 7 Mar 2003
RIPE training
Copenhagen, Denmark
29 Sep 2002
pSeries Logical Partitioning (LPAR) for AIX 5L
Copenhagen, Denmark
19 Jun 2002 - 21 Jun 2002
AIX Jumpstart for UNIX professionals
Kista (Stockholm), Sweden
6 May 2002 - 8 May 2002
39th RIPE Meeting
Bologna, Italy
30 Apr 2001 - 4 May 2001
Odessa National University
Odessa, Ukraine
1988 - 1994
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Graduated with Master's degree in 1994.
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Physics, Mathematics, Programming and Mathematical modelling.
References
References are available upon request.