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Last updated: October 1, 2015
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Sun Dro

Sun Dro

Software engineering. Design, development and maintenance of software.

Georgia - Tests: 4 - Portfolio: 7

I have 5 years experience in Software engineering: Design, Development and Maintenance of software, 2 years experience in IP-TV software development and I also have a big experience in IT Security, Penetration Testing, Technical Support and Operating Systems (GNU/Linux, Windows) Administration/Architecture. Personal Blog: Services: - System Programming - Middleware Development - Desktop Application Development - Server-Side Application Development - Android Application Development - IT Security Research - Penetration Testing - Malware Analysis - IT Security Advisory - IT Infrastructure Consulting - Security Awareness Training - Operating Systems Administration

$10.67 /hr
0 hours

Dragan D.

Dragan D.

Drupal Developer,Security Researcher,PHP Developer

Serbia - Tests: 7 - Portfolio: 1

During the years of productive work I performed work for customers from USA, Canada, Netherlands, Russia, Australia. Both sides enjoyed cooperation. Over the last 7 years, I have developed a wide range of websites using HMTL, PHP, MySQL. I also have some experience in the following areas: Ajax, OOP and software design and testing.

$16.67 /hr
0 hours

Fabián Cuchietti

Security Engineer


"><var onmouseover="prompt(1)">On Mouse Over</var> Honors: Facebook - White Hat Hacker Google Hall of Fame Mozilla Advisory Apple Hall of Fame Microsoft Acknowledgments Yandex -- Hall of Fame Kaneva Hall of Fame Paypal Hall of Fame

$111.11 /hr
0 hours

Mariusz Z.

Mariusz Z.

Penetration Tester, Linux/UNIX Security Admin,Intrusion Analyst, CISSP

Poland - Tests: 9 - Portfolio: 1

I'm Linux Security Administrator & Web Application Penetration Tester with 8 years of experience in the IT field. I'm CISSP (ID# 478556) and OWASP member. My expertise ranges from designing, building secure & robust systems to analysis of subtle software security flaws. I can help you with: - thoroughly security testing your web application (black-box and/or white-box tests) and helping in mitigating detected vulnerabilities - analyzing and assessing vulnerabilities in your application's underlying IT infrastructure - security hardening Linux/UNIX servers/clusters - recommending solutions and best practices on how to design and maintain secure AWS infrastructures - responding to security incident in Linux/UNIX environment, helping in recovery process (rootkit detection, malware removal, etc.)

100% Job Success
$19.00 /hr
123 hours

Aleksandre Vardanidze

Aleksandre Vardanidze

--admin systems|database|network|security

Georgia - Tests: 6

--Admin systems Extensive experience with the configuration, hardening, and maintenance of various Linux distributions, including: * Red Hat Enterprise Linux, Fedora, CentOS * Debian, Ubuntu * OpenSuse Able to set up vital Linux infrastructure components including load balancers, DNS servers, proxy, web/application servers, and mail servers. Familiar with os-level security policies as well as server-level security layers like SELinux. --Admin database Skilled in MySQL database administration for standalone servers as well as replicated and clustered environments. I have also worked with postgsql --Admin Network I've been working as a network administrator for 5 years. For now I'm working in a governmental agency as a network administrator and network security specialist. Have experience with almost every cisco and hp network devices, also I design governmental network and our agency network design. I'm certified ccna,ccnp and ccna sec. had trainings in ccnp sec, ccdp, gsec, CEH,ENSA and Microsoft products (server 2003/8, exchange server and etc) Monitoring and diagnosing faults of VPN connections with other organization, Data Exchange Agency IPS/IDS system and sensor setup, operation. Security concept, design, documentation and implementation. --Programming Native PHP & PHP framework: Phalcon Python (python frameworks: django, cherrypy, flask) C/C++, x86 assembly, x86 architecture (PE binary format, IDA & general RE) --Malware Analysis Static and Dynamic Analysis using a debugger and disassembler. Memory Forensic with Volatility Detect malware characteristics at the Windows API level (DLL injection, function hooking ”SSDT, IAT”, keylogging, communicating over HTTP, DNS.) --Admin other Here is the incomplete list of technologies and solutions I have used over my 5 years of experience. -Zabbix, Zenoss, Nagios, Munin and Cacti for monitoring purpose  -Configuration management - Puppet, SpaceWalk, Katello  -Web servers - Apache, Ngnix, Lighttpd  -Load Balancing with Haproxy and Barracuda Load Balancer  -Virtualization - Vmware ESXi --Computer Skills, Trainings and Certification Windows; Windows Server (2003/2008/2012); MS Office; Linux; MacOS ; Network Monitoring Tools; Certified Ethical Hacking ( CEH ) - Self-study Course Security Certified Network Specialist - Self-study Course EC-Council Network Security Administrator - Self-study Course Metasploit Framework Expert - Self-study Course CompTIA Security - Self-study Course HISTORY * SpeedLine - Aug 2010 to May 2012 - Linux Engineer, System Administrator * DATA EXCHANGE AGANCY - Jun 2012 to May 2014 -CERT SPECIALIST * Unipay - Jun 2014 to Present -Linux Enginner, Network Administrator

$33.33 /hr
19 hours

Deibys Paredes

Deibys Paredes

Linux Systema Administrator


I am a professional organized, efficient, dependable, who has worked in several IT fields for over 10 years. With experience as a Linux System Administrator, Linux Network Administrator, migrations planning and many other functions. I can bring value to your business and help solve issues. I have strong knowledge in Web server (Apache, Lighttpd, Nginx, PHP, Perl, Python..), Monitoring (Cacti, Nagios, Zabbix), Mail server (Sendmail, Qmail, Postfix, Zimbra...), DNS (Bind, Power DNS...), Firewall, Network, Database (MySQL, noSQL: couchbase...), load balancing (HaProxy, LVS..), Virtualization (VMware vSphere, XEN, Proxmox, Citrix...). However, my knowledge is not limited in these areas.

$17.00 /hr
0 hours

Maxim Tsoy

Maxim Tsoy

Experienced Python Developer and Security Researcher

Russia - Tests: 7 - Portfolio: 2

1. Python development: Rich experience in distributed Python applications and web applications development using Django, Pyramid, and Celery. Released several mobile Python applications (kivy). 2. Security Assessment: I have a huge experience in vulnerability research and security assessment (currently this is my main occupation). Reached the top in many hacking contests, including DEF CON CTF. I usually specialize in web application security, however, I am experienced in network, database, cryptography and other security areas. Disclosed security advisories for many vendors including: - Cisco - Citrix - Yandex (Entered Bug Bounty Hall of Fame) - SAP - Qiwi 3. Game Development: Have an experience in game design and development using Game Maker Studio.

$75.00 /hr
249 hours

Greg Molnar

Greg Molnar

Ruby Developer / Penetration tester

United Kingdom - Tests: 2 - Portfolio: 4

I am Greg, a UK based independent developer/consultant. I focus on Ruby and Ruby on Rails but occasionally I work with other technologies too. I usually help businesses and organisations to reduce costs by automating repetitive processes and to turn ideas into a working product. I love open source and I try to contribute to open source projects as much as I can. I am a Rails contributor( and I also contributed to the following projects: Rack Mini Profiler
 Textacular Mongoid the Ruby MongoDB ORM
 Yii PHP MVC framework

$100.00 /hr
0 hours

Reem B.

system admin


I'm currently working at University of Tartu in cloud computing field OpenStack, and i was working previously as Linux / window system admin, i have experience in technical support as freelancer since 2002.have knowledge in Database, SQL. Also my study was Computer Engineering so I know in Electrical/Electronic Engineering. I was designing implementing electronic circuits. I also took technical course in PLC design. I was studying embedded system last semester I was using AT&T and Arduino boards to write software for driving stepper motor.

$12.00 /hr
0 hours