279 lines
14 KiB
HTML
279 lines
14 KiB
HTML
---
|
||
layout: default
|
||
title: Resume
|
||
---
|
||
<h3>Resume <a id="keywords-button" data-toggle="popover" data-placement="bottom" role="button" tabindex="0" data-trigger="focus">[ want some keywords only? click this! ]</a></h3>
|
||
|
||
<div itemscope itemtype="http://schema.org/Person">
|
||
<p>
|
||
I am <span class="b" itemprop="name">Gergely Polonkai</span>
|
||
(sometimes referred to
|
||
as <span itemprop="nickname">W00d5t0ck</span>
|
||
or <span itemprop="nickname">Polesz</span>), a <span class="b"
|
||
itemprop="jobTitle">software developer, systems engineer and
|
||
administrator</span>. I was born on <span class="b"
|
||
itemprop="birthDate">7 March, 1983</span> in Budapest,
|
||
Hungary. I spent my life moving here-and-there in the country,
|
||
and finally settled in <span class="b" itemprop="address"
|
||
itemscope itemtype="http://schema.org/Address">
|
||
<span itemprop="locality">Veresegyház</span></span>.
|
||
</p>
|
||
|
||
<p>
|
||
You can reach me on
|
||
<span class="b" itemprop="email">gergely@polonkai.eu</span>,
|
||
or by phone on <span class="b" itemprop="telephone">+36 (30)
|
||
7375-706</span>. I fluently speak and
|
||
write <span class="b">English</span>
|
||
and <span class="b">Hungarian</span> and currently learning Icelandic.
|
||
</p>
|
||
|
||
<p>
|
||
I have <span class="b">graduated in 2001</span>
|
||
from <span class="i">Táncsics Mihály Szakközépiskola,
|
||
Szakiskola és Kollégium</span>, an architecture high school
|
||
based in Veszprém, Hungary. There, I learned
|
||
about <span class="b">electricity and elevators</span>, while
|
||
getting my feet wet in the area of IT systems
|
||
engineering. Together with some teachers, we
|
||
developed <span class="b keyword" title="network building">the
|
||
IT infrastructure of the school, building it from
|
||
scratch</span> with <span class="b keyword">Windows XP</span>
|
||
based clients, and <span class="b keyword">Debian
|
||
GNU/Linux</span> servers with <span class="b keyword">Squid
|
||
proxy</span>, an <span class="b keyword">Apache httpd</span>
|
||
web server, <span class="b keyword">Exim</span>+<span class="b
|
||
keyword">Courier IMAP</span> based internal mailing and
|
||
a <span class="b keyword">Samba file server</span>. Meanwhile,
|
||
I have created the school’s first <span class="b keyword"
|
||
title="web development">web page</span> using <span class="b
|
||
keyword">Perl CGI</span>, and later it’s replacement
|
||
in <span class="b keyword">PHP</span>. Although I did that as
|
||
a student, I consider it my first job.
|
||
</p>
|
||
|
||
<p>
|
||
My first contract was made in <span class="b">2002</span> with
|
||
a small Budapest based ISP that served Internet connection to
|
||
a large warren. I have mastered Linux based <span class="b
|
||
keyword" title="firewalls">firewalling and routing</span>
|
||
there using <span class="b keyword noupper">iptables</span>,
|
||
and <span class="b keyword" title="QoS">tc for QoS</span>. I
|
||
have also created a <span class="b">web page</span> for the
|
||
company using <span class="b keyword">PHP</span>
|
||
and <span class="b keyword" title="MySQL database
|
||
development">MySQL</span>.
|
||
</p>
|
||
|
||
<p>
|
||
After that I contracted with a small <span class="b">web
|
||
development company</span> in <span class="b">2004</span>.
|
||
Here I was in the role of both a <span class="b keyword"
|
||
title="web development">web developer</span> and
|
||
a <span class="b keyword" title="Systems
|
||
administration">systems administrator</span>. I have
|
||
mastered <span class="b keyword">PHP</span> there, together
|
||
with <span class="b keyword">MySQL administration</span>. I
|
||
also built a small <span class="b keyword"
|
||
title="routers">router</span>/<span class="b keyword"
|
||
title="firewalls">firewall</span> out of a PC for office
|
||
needs.
|
||
</p>
|
||
|
||
<p>
|
||
My next job came in <span class="b">2006</span>, when I
|
||
contracted with a small <span class="b">VoIP company</span>
|
||
developing a call center software based on <span class="b
|
||
keyword">Asterisk</span>. My job here was to create a base
|
||
system for this software as small as possible, while managing
|
||
the old, Ubuntu based ones. For the new version we
|
||
targeted <span class="b keyword">Gentoo Linux</span> because
|
||
of its possible small size, and performance reasons.
|
||
</p>
|
||
|
||
<p>
|
||
The job that followed was with a world-wide IT services
|
||
company in <span class="b">2007</span>, where I became a
|
||
member of a large team supporting and administering several
|
||
thousand servers, mostly based on <span class="b keyword">Red
|
||
Hat Enterprise Linux</span> and <span class="b keyword">SUSE
|
||
Linux Enterprise Server</span>. There I mastered cluster
|
||
technologies (both <span class="b keyword">Heartbeat 2</span>
|
||
and <span class="b keyword">Red Hat
|
||
Cluster</span>), <span class="b
|
||
keyword">SAN</span>, <span class="b keyword
|
||
noupper">iSCSI</span> and <span class="b keyword">NFS</span>
|
||
based storages, <span class="b keyword">Apache httpd</span>
|
||
and <span class="b keyword">Tomcat</span> web servers,
|
||
administration of <span class="b keyword" title="MySQL
|
||
administration">MySQL</span> and <span class="b keyword"
|
||
title="Oracle 10g Database Administration">Oracle 10g
|
||
Database</span>s, <span class="b keyword">Bacula</span> based
|
||
backup, <span class="b keyword">Windows 2003 Server</span>
|
||
and <span class="b keyword">Windows Server 2008</span> (both
|
||
standalone and cluster) with <span class="b keyword">Active
|
||
Directory</span>, <span class="b keyword">Group
|
||
Policy</span>, <span class="b keyword">Microsoft Exchange
|
||
Server 2005</span> and <span class="b keyword">Microsoft SQL
|
||
Server 2005</span>, <span class="b keyword">Xen Open
|
||
Source</span> virtualization, <span class="b keyword">Citrix
|
||
XenServer</span> and <span class="b keyword" title="Citrix
|
||
XenApp">XenApp</span>, <span class="b keyword">VMware
|
||
ESXi</span> and <span class="b keyword" title="VMware
|
||
vSphere">vSphere</span>, <span class="b keyword">Nagios</span>
|
||
monitoring (and <span class="b keyword">monitoring</span> in
|
||
general), and last, but not least, <span class="b
|
||
keyword">Linux hardening</span> (<span class="b
|
||
keyword">SELinux</span>, firewalls of different kinds,
|
||
fighting <span class="b keyword">application security</span>
|
||
issues).
|
||
</p>
|
||
|
||
<p>
|
||
All this knowledge came in very handy, when I went to a
|
||
leading Hungarian financial company
|
||
in <span class="b">2010</span>. The IT infrastructure was in a
|
||
very bad shape there, and my job was to rebuild the Linux
|
||
parts from scratch. We utilized <span class="b keyword">Debian
|
||
GNU/Linux</span> servers (both standalone and <span class="b
|
||
keyword">Heartbeat 2</span> clusters), <span class="b
|
||
keyword">Apache httpd</span> web servers, <span class="b
|
||
keyword">Exim</span>+<span class="b keyword">Courier
|
||
IMAP</span> for mailing, <span class="b keyword">Bacula</span>
|
||
based backup, <span class="b keyword" title="MySQL
|
||
administration">MySQL</span> and <span class="b keyword"
|
||
title="PostgreSQL administration">PostgreSQL</span> database
|
||
servers, <span class="b">Oracle Database</span>s
|
||
(both <span class="keyword" title="Oracle 10g Database
|
||
Administration">10g</span> and <span class="keyword"
|
||
title="Oracle 11g Database
|
||
Administration">11g</span>), <span class="b">Microsoft SQL
|
||
Server</span>s (both <span class="keyword" title="Microsoft
|
||
SQL Server 2005">2005</span> and <span class="keyword"
|
||
title="Microsoft SQL Server 2008">2008</span>), <span class="b
|
||
keyword">Windows 2003 Server</span> and <span class="b
|
||
keyword">Windows Server 2008</span> (both standalone and
|
||
clusters), <span class="b keyword">Active
|
||
Directory</span>, <span class="b keyword">Group Policy</span>,
|
||
centralised <span class="b keyword">ESET NOD32
|
||
anti-virus</span>, <span class="b keyword">Windows
|
||
cluster</span> based <span class="b keyword" title="Microsoft
|
||
File Server">file server with AD
|
||
backend</span>, <span class="b
|
||
keyword">WSUS</span>, <span class="b
|
||
keyword">OTRS::ITSM</span> helpdesk, <span class="b
|
||
keyword">Zabbix</span> based monitoring, virtualization
|
||
with <span class="b keyword">Citrix XenServer</span>, IT
|
||
security solutions with <span class="b
|
||
keyword">SonicWall</span> appliances, <span class="b
|
||
keyword">SELinux</span>, <span class="b keyword">Snort</span>
|
||
and <span class="b keyword
|
||
noupper">iptables</span>, <span class="b keyword">Perl</span>
|
||
for system administration scripts, and <span class="b
|
||
keyword">PHP</span> and the <span class="b keyword">Symfony
|
||
2</span> framework for internal web development. Although much
|
||
has changed in this list since then, it was my best and most
|
||
challenging experience so far.
|
||
</p>
|
||
|
||
<p>
|
||
I left that company in <span class="b">2013</span> to work as
|
||
a <span class="b">freelancer developer</span> and
|
||
a <span class="b">systems engineer</span> for
|
||
a <span class="b">startup network monitoring
|
||
company</span>. Here we were building a help desk system using
|
||
open source products like <span class="b
|
||
keyword">OTRS::ITSM</span>, <span class="b
|
||
keyword">OpenLDAP</span>, and <span class="b
|
||
keyword">Zabbix</span>. I also dug my nose into <span class="b
|
||
keyword">Docsis</span> based ISP networks and <span class="b
|
||
keyword">SIP</span>-based telephony.
|
||
</p>
|
||
|
||
<p>
|
||
Unfortunately our main employer went bankrupt
|
||
in <span class="b">2014</span>, so after a few months of
|
||
freelancing I got a new job at the R&D division of a
|
||
leading telecommunications company. My current role is pretty
|
||
close to DevOps. Nowadays I’m developing a <span class="b
|
||
keyword">Django</span>-based internal web application, while
|
||
maintaining internal scripts written in both <span class="b
|
||
keyword">Perl</span>, <span class="b
|
||
keyword">Python</span>, <span class="b keyword">bash</span>
|
||
and
|
||
<span class="b keyword">tcsh</span> or trying to migrate the
|
||
internal source code repositories from <span class="b
|
||
keyword">ClearCase</span> to <span class="b
|
||
keyword">Git</span>.
|
||
</p>
|
||
|
||
<p>
|
||
I left that company in 2016, as such a slow moving giant couldn’t
|
||
really keep up with my pace. I signed with another startup creating
|
||
games capable of analysing work behaviour. Here we mainly use
|
||
<span class="b keyword">Flask</span>,
|
||
<span class="b keyword">Cassandra</span>, and
|
||
<span class="b keyword">Tensorflow</span>. Unlike the previous one,
|
||
this is a true learning organization, and given its size, it is
|
||
capable of taking quick turns if market changes (and that’s exactly
|
||
what I need).
|
||
</p>
|
||
|
||
<p>
|
||
In my <span class="b">free time</span>, I wander in forests,
|
||
take pictures, and sometimes manipulate them with
|
||
the <span class="b keyword">GIMP</span>. Sometimes
|
||
I <span class="b">write</span> short fantasy or sci-fi novels
|
||
using <span class="b keyword">LibreOffice</span>. I am also
|
||
developing some software in <span class="b keyword">C</span>,
|
||
<span class="b keyword">Python</span>, and
|
||
<span class="b keyword">Vala</span>, whose source code is managed
|
||
with <span class="b keyword">Git</span>. When I’m not in the mood
|
||
for writing, I go and check out the news on several technical areas,
|
||
mostly IT and engineering, or give a try to a new programming
|
||
language in the name of “why not?”.
|
||
</p>
|
||
</div>
|
||
|
||
<div id="keywords"><span id="keywords-close"></span><span id="keywords-list"></span></div>
|
||
|
||
<script type="text/javascript">
|
||
var keywords = null;
|
||
|
||
$(function() {
|
||
$('[data-toggle="popover"]').popover({
|
||
'html': true,
|
||
'content': function(){
|
||
if (keywords == null) {
|
||
keyword_tags = $('.keyword');
|
||
keywords = new Array();
|
||
|
||
for (i = 0; i < keyword_tags.length; i++) {
|
||
tag = keyword_tags[i];
|
||
|
||
if ($(tag).attr('title')) {
|
||
kw = $(tag).attr('title');
|
||
} else {
|
||
kw = $(tag).html();
|
||
}
|
||
|
||
first_letter = kw.charAt(0);
|
||
remainder = kw.slice(1);
|
||
|
||
if (!$(tag).hasClass('noupper')) {
|
||
first_letter = first_letter.toUpperCase();
|
||
}
|
||
|
||
kw = '<span class="keyword-first-letter">' + first_letter + '</span>' + remainder;
|
||
|
||
keywords.push(kw);
|
||
}
|
||
}
|
||
|
||
keywords = $.grep(keywords, function(el, index){return index === $.inArray(el, keywords);});
|
||
return keywords.sort(function(a, b) { if (a.toLowerCase() < b.toLowerCase()) return -1; else if (a.toLowerCase() > b.toLowerCase()) return 1; else return 0; }).join(', ');
|
||
}
|
||
});
|
||
});
|
||
</script>
|