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Last updated: October 1, 2015
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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

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

Tushar K.

Tushar K.

Development and Testing

India - Tests: 2 - Portfolio: 9

5+ years of extensive experience in Manual and Automated testing of Client/Server, N-tier Distributed Architecture, Web-based, Mobile and Desktop Applications with focus on System Analysis, Verification and Validation. As a Quality Assurance and Principal Quality Control Consultant, over the years I have tested a wide range of web based, client-server, windows-based and multimedia applications, mobile applications. - Expertise in Manual and Automation Testing on Web based and Software applications. - Efficient in Smoke Testing, Black-box-testing, Regression-testing, Functional-testing, Usability-testing, Database-testing, User acceptance-testing,Load Testing,Security Testing, Cross-browser Testing - Checking compliance with requirements, finding defects, logging and tracking them, performing validations of fixes and regressions, logging enhancements, creating documents/tools to improve the testing processes - Expertise in all stages in testing SDLC (i.e,Scheduling, Test design which includes test case design, test execution, testreporting by using test summary report then analysis of the found defects). - Expert in Security Testing of web applications to test Web Security Vulnerabilities. - Well dressed with the MySQL to do back-end testing of web applications. Hands on experience of Test Planning with effective skills of Test Case development along with Scenario Matrix. - Tools: QTP, Selenium(Open sources), Mantis So, you will have all necessary information to make your application the most stable, functional and user-friendly.

85% Job Success
$11.11 /hr
457 hours

Shadab Shaikh

Shadab Shaikh

Lead Automation/Manual QA tester

India - Tests: 5 - Portfolio: 4

Dear All, My name is Shadab Shaikh, I am a web & Mobile app tester with 9+years of hands on experience in TESTING Web & Mobile Applications. I offer a five point promise so that you will know what to expect: * I'll listen to you: that's the best place to start in understanding your objectives * I'll avoid geek speak and talk to you in plain English * I'll use a common sense approach that's based on your business, not my agenda * I'll think outside of the box and encourage you to do so too * I'll be here whenever you have a question I use all the latest testing tools and techniques. I have strong knowledge of SDLC and different types of testing mythology (Black box testing, Regression, Smoke, sanity testing). I am very much familiar with ad hoc & Scrum (agile) testing mythology . I am using bug tracking tool mantis, Jira, Unfuddle, basecamp, Bugzilla. I have knowledge of W3C valid XHTML and CSS. After testing your application, I will write a report on found bugs and suggestions with screenshots and steps to reproduce them. So, you will have all necessary information to make your application the most stable, functional and user-friendly.

100% Job Success
$11.11 /hr
1,014 hours

Omar M.

Omar M.

Sr.Quality Engineer | Software Tester | QA Tester

Canada - Portfolio: 1

7 years of professional experience in Software Testing/Quality Assurance using software engineering methodologies (Agile, Scrum, Waterfall..etc) focused on E-commerce, ERP, Big Data, ETL and Data Warehousing for Web and Mobile Apps. and here more details about my Experience &Skills: - Software Quality Engineer assuring business-critical systems. - Proven experience in leading, mentoring and developing others on the Test Process. - A quick learner, capable of building a collaborative problem solving approach when in a new Role or Project. - Excellent track record of leading large scale projects working with in-house and 3rd party Teams - Experience in defining and implementing test policies, strategies, processes and best practices.

$16.00 /hr
7 hours

--- Serhiy Chernikov ---

--- Serhiy Chernikov --- Agency Contractor

Team Lead\Lead QA Engineer\Business Analist

Ukraine - Tests: 2 - Portfolio: 14

• QA lead\Project Lead with more than 8 years of IT experience. • Excellent knowledge of development, testing activities: planning and control, analysis and design, implementation and execution development, test closure activities. • Good theoretical and practical knowledge of development, testing methodologies. I'm proficient in all of testing types and most software development methodologies (RUP, Agile, AUP, Waterfall).

Associated with: QA group, Global Network Solutions

$16.67 /hr
475 hours

Iñaki Rodríguez

Iñaki Rodríguez

Ethical hacking and malware analyst

Spain - Tests: 2

During my career, I have acquire great background in ethical hacking, incident handling and malware and forensic analysis . This was thanks to my experience doing ethical hacking for financial services and telecom companies. I have also experience designing and implementing high availability and high performance web platforms with open source technologies. I can program in several languages and I do task automation and integration between several technologies.

$44.44 /hr
34 hours

Christian Fernandez

Christian Fernandez

Linux Network and systems engineer/Ethical Hacker pentester

United States - Tests: 2 - Portfolio: 5

Skills: I currently provide computer security, operations, networking, and systems engineering, research, administration and development for the Linux operating system, and in general, in the FLOSS(Free/Libre Open Source Software) community, computer security/hacking research vulnerabilities and penetration testing. Dev: Ruby, Rails, C/C++, Bash, etc (when time permits I like to explore learn new languages at the moment playing with Java) Specialties: Open Source, Free Software, GNU/Linux, Network Engineering, Penetration testing, Computer and Computer Security research, GNU/Linux systems and network architecture. Amazon Web Services, Virtualization , GNU/Linux Systems engineering and developer.

72% Job Success
$77.78 /hr
345 hours

Stergios K.

Stergios K.

Penetration testing, Malware removal


I am a security researcher and penetration tester with more than five years of experience. I can provide you with web application penetration testing, reverse engineering services, server security and malware removal

$27.00 /hr
69 hours