gergelypolonkai-web-jekyll/resume/index.html

---
layout: default
title: Resume
---
<h3>Resume <span id="keywords-button">[ want some keywords only? click
this! ]</span></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">Budapest</span></span>. Although
    I have already found my mate for life, I
    am <span class="b">single</span> yet (living in a common-law
    marriage), being the proud father of a son and a daughter.</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>.</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. You can contact <span class="b">Imre
      Pataki</span> at +36 (20) 970-5830 if you need more
    information.</p>
    <p>My first contract was made in <span class="b">2002</span>
    with <span class="b">GaTeS Group Kft.</span>, a Budapest
    based <span class="b">ISP</span> 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>. The
    company went through several merges since then. My only contact
    was Ákos Szabó, whose phone number is not reachable any more.</p>
    <p>After that, I contracted with <span class="b">Webvilág
    Kft.</span> in <span class="b">2004</span>. It was
    a <span class="b">web development company</span>, where 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. Although the company has changed its name to Fejlesztők
    Háza Kft., you may still contact <span class="b">Péter Bali</span>
    at +36 (70) 318-4050.</p>
    <p>My next job came in <span class="b">2006</span>, when I
    contracted with <span class="b">eWorldCom Kft.</span>, a
    small <span class="b">VoIP company</span>, developing a call
    center software based on <span class="b
    keyword">Asterisk</span>. My job was to create a small base system
    for this software, 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. The company since then merged with Virtual Call Center
    Kft. You may reach my ex-bosses (Tamás Jalsovszky and Szabolcs
    Tóth) there, altough I don’t know any of their new contacts.</p>
    <p>The job that followed was with <span class="b">Lufthansa
    Systems Hungary</span> in <span class="b">2007</span>, where I
    became the 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 (<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). My boss
    was <span class="b">László Kiss-Kalló</span>, who can be reached
    on +36 (30) 429-9483.</p>
    <p>All this knowledge came in very handy, when I went
    to <span class="b">Brokernet Group Zrt.</span>
    in <span class="b">2010</span>. The IT infrastructure was in a
    very bad shape there, and our job was to rebuild most of it 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 experience so
    far. You can contact <span class="b">Attila Balogh</span> on +36
    (30) 924-8179.</p>
    <p>Since I left the company in <span class="b">2013</span>, I am
    working 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 are 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>.</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 write 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>, 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?”. Currently I’m
    experimenting with Python.</p>
    <p>As an employee I am looking for firms where can I use and
    develop my skills, while getting financial stability through an
    interesting job.</p>
</div>

<div id="keywords"><span id="keywords-close"></span><span id="keywords-list"></span></div>

<script type="text/javascript">
Array.prototype.unique = function() {
    var unique = [];

    for (var i = 0; i < this.length; i++) {
        if (unique.indexOf(this[i]) == -1) {
            unique.push(this[i]);
        }
    }

    return unique;
};

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-list').html(keywords.unique().sort(function(a, b) { if (a.toLowerCase() < b.toLowerCase()) return -1; else if (a.toLowerCase() > b.toLowerCase()) return 1; else return 0; }).join(', '));

$('#keywords-button').click(function(e) {
    $('#keywords').css({
        top: e.pageY + 10,
        left: e.pageX - 2
    });
    $('#keywords').fadeIn();
});

$('#keywords-close').click(function() {
    $('#keywords').fadeOut();
});
</script>