Roman T.
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Roman T.

UNIX and security expert, network and system administrator


Las Vegas, United States


I'm a problem solver with technical and managerial experience, based out of Los Angeles. I love solving complicated problems by building elegant solutions and seeing the impact it has on a business's growth. I've always been interested in the technological field, specifically in information security and automation, which has made a huge impact on my work experience. However, I recently found myself involved in start-ups and helping with management, risk assessment and developing business strategies. I offer the following key services: o Security Audit o Network and Systems Administrator Services o Information Security Services o IP-PBX and VoIP softswitchs: installation and maintenance o Software development: Web, desktop ... moreand server applications o Complex solutions for business-process automation Experience Platforms: Cisco (routers, switches and ASA), Huawei (L2&L3 routers and switches), MikroTik, Ubiquiti, OpenStack. OSs: UNIX (FreeBSD, OpenBSD, *BSD, Solaris), Linux (Debian, Ubuntu, Kali, Gentoo, Red Hat, SuSe, uLinux, ASP, Mandrake, Fedora Core), MikroTik's RouterOS, VRP (Huawei), Windows 95/98. Languages: C/C++, UNIX Shell Scripting (Bash, Shell, sed, awk), Delphi (Pascal), Perl, PHP, Python, SQL, T-SQL, Assembler (Intel and AT&T SysV/386 syntax), GTK+ applications, Erlang, HTML, CSS, JavaScript, JQuery, JSON, REST API, XML, XSLT, DTD. Databases Engines: PostgreSQL, MySQL, Oracle, SQLite, Mnesia, MS Access, Sybase, DB2. Networking: TCP/IP, ISO/OSI, IPv6, Ethernet, VLAN (dot1q), ARP, VRRP, CARP, MPLS L2, MPLS L3, STP, GVRP, PPPoE, VPN, PPTP, L2TP, IPSec, OpenVPN, SNMP, SSH, XMPP, SIP, h323, BGP, OSPF, RIP, IRC, AJAX, Netflow. Virtualization: OpenStack, XEN/Server, Qemu, VMWare, FreeBSD Jail, Chroot. CMS: WordPress, Bitrix, osCommerce, Joomla, RoundCube. Panels: CPanel, Plesk, ISPManager, Webmin. less

Roman T. has added 3 portfolio pieces. Create an account to review them.

Work History and Feedback

  • Jul 2015

    Cpanel expert needed
    Roman completed the job on time and on budget. Was very helpful in resolving issues and making recommendations on future implementations.
    $150.00 earned
    Fixed Price

  • Jul 2015

    OpenBSD desktop: compose key & UTF-8 terminal
    1 hour
    $20.00 / hr
    $13.33 earned

  • Jan 2013 - Nov 2013

    Linux / Plesk

    No feedback given

    $100.00 earned
    Fixed Price

  • Dec 2012

    Install small app on amazon S3 server
    Excellent communication,n very good cooperation and he was able to solve al requests. I am looking forward to working with him in further projects.
    1 hour
    $33.33 / hr
    $43.33 earned

Roman T. has more jobs to show. Create an account to review them.


Name Score (out of 5) Time to Complete
Regular Expressions with PHP Test 2.60 Below Average 16 mins
Unix Shell Script Test 3.40 Above Average 20 mins
Internet Security Test 3.00 Top 30% 11 mins
Unix Test 4.10 Top 20% 12 mins
TCP/IP Test 3.25 Above Average 19 mins
Programming with C Test 2.60 Above Average 21 mins
U.S. English Basic Skills Test 3.75 Above Average 13 mins
English Spelling Test (U.S. Version) 2.75 Below Average 9 mins
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Work History

92% Job Success
338 hours worked
19 jobs


More than 30 hrs/week

Associated with

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288 hours

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