Network & System Administrators

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Dmitry Sytchev

Dmitry Sytchev

Asterisk/Freeswitch/Kamalio expert, VoIP engineer, Linux administrator

Russia - Tests: 7 - Portfolio: 1

I have more than 10 years of experience in installation and support of carrier-grade VoIP services based on Asterisk, OpenSIPS, Kamailio, Freeswitch and proprietary SIP/VoIP software. My professional interests are Callcenters, automated dialer systems and integration of VoIP software with company information flows. You can rely on my strong engineering and programming skills for projects starting from single VoIP server to a complete wholesale/carrier VoIP solutions including billing, call data analysis, security and fraud prevention. I have developed complete SIP solutions for VoIP carriers worldwide: Proxy/Registrars, IVR, prepaid systems, multi-tenant VoIP switches, hardware PSTN gateways (Cisco AS5300/5500, Audiocodes Mediant 2000, Quintum Tenor). I have experience in setup, administration and security of Asterisk, FreePBX, Elastix and FreeSWITCH PBX installations. As a programmer I use PHP, Javascript (both client-side using jQuery and Angular.js and server-side with node.js), Perl (system scripts/applications, Mojolicious webapps). I also have experience in development and administration of MySQL and Microsoft SQL Server databases. I'm experienced network engineer, skilled in routing and switching, general network architecture planning and deployment, network monitoring and security, including HA solutions (heartbeat/pacemaker). I use Zabbix and have some experience with Nagios and other monitoring software. I can also offer you consulting support in VoIP and network technologies.

100% Job Success
$33.33 /hr
104 hours

Yuri Turchenkov

Yuri Turchenkov

Python Developer and Linux Server Administrator

Russia - Tests: 7

PLEASE READ UP TO END! I'm looking for longterm Python Backend/Serverside development, MongoDB, Linux Administration/Development tasks, or interesting work I'm strong in : DB handle and data processing with Python Web Development using Python (backend/serverside/django) Web UI frontend programming (js, jQuery, ajax) Multimedia apps development with GSTREAMER Data scrapping Linux Administraion Embedded Linux development. I'm not graphic or web designer. Just coder: python, shell scripting are welcome. I'm not PHP or RUBY coder! I'm Python coder (i use C/C++ mostly to extend Python) If you have any interesting project that need a cool Python coder, feel free to invite me for an interview! ATTENTION! Please, add this string to your message to me: "Yes, I have read your objective". So I'll see that you have read my objective.

$46.70 /hr
2,980 hours

Sudan D.

Sudan D.

Network Engineer : Cisco : Juniper : Fortinet :

Nepal - Tests: 6 - Portfolio: 4

Despite the fact I am in young age I have years of experience with computers, networking and system. I am very tenacious and autodiact technical person for Cisco and Juniper Enterprise Network. I love to dig deep into specific technical challenges. 6+ years experience in Enterprise Netwrok. # Hands On Experience # Cisco: ASR 9K, ASR 1K, Nexus 7K, Nexus 5K, 4507R+E, 3900 Series, 2900 Series, 3850 Switches, 3650 Switches, 2960X Switches, ASA 5525X, ASA 5515X, ASA 5512X Juniper: MX40, MX5, SRX 550, SRX 240, SRX 220, SRX 210, SRX 100, EX 4300, EX 4200, EX 3300, EX 2200, MAG 4610, etc. More from Other Vendors # Some Highlights # @ Defining architecture and design for Enterprise customers. @ Lead engineer on some of the big enterprise networking projects. @ Training Internal Employee and customer. Main focus on Cisco and Juniper internetworks at Campus and Enterprise customers

100% Job Success
$34.00 /hr
242 hours

Ilya Obshadko

Ilya Obshadko

Software development professional

Israel - Tests: 5 - Portfolio: 4

Seasoned software developer, worked as software engineer, software development team leader, system architect, business analyst and project manager. Accurate and well-organized, always looking for the elegant and efficient solutions. Experienced in: - web development (mostly Java and Perl server-side technologies) - mobile software development for Apple iOS Technology background: - programming languages: Perl, Java, Objective C, C/C++, PHP, Clojure, Python, JavaScript - client-side: HTML5, CSS, jQuery, Bootstrap and other JS/CSS frameworks - system administration: Linux, FreeBSD, virtualization (KVM/QEMU), TCP/IP based networks - databases: PostgreSQL, MySQL, Oracle, MongoDB and others - Java development: J2EE, Apache Tapestry, Hibernate, JAX-RS, EclipseLink etc. - XML technologies: XSLT, XSL-FO - mobile development: Apple iOS (iPhone and iPad platforms) LinkedIn public profile:

100% Job Success
$45.00 /hr
2,383 hours

Guyen C.

Guyen C. Agency Contractor

Magento, Drupal, wordpress, Joomla & ASP/PHP/RUBY/FLASH/JAVA Developer

Bolivia - Tests: 8

I have 8 years experience developing Joomla/Wordpress and web and desktop applications . I have some projects created with Drupal, Joomla, Wordpress, c#, PHP, java J2EE, C/c++, Ajax JavaScript, CSS3, Ruby, XML. DHTML, WPF, LINQ and more. Try to find more opportunities for development of websites. I consider myself self-taught and always willing to acquire additional skills and training as required. I also have experience with Frameworks Ezpdo, Cake, Symphony.

Associated with: SCALE-S

$15.00 /hr
1,706 hours

Jamie B.

Jamie B.

Microsoft Technology Expert/CCNA

United States - Tests: 3

Talented IT professional with 14 years of experience in a wide variety of technologies. I started out in desktop support, worked my way up to global server support, including virtualization technologies, and have spent the last 3-4 years developing my Cisco networking skill set. I am currently a CCNA on track to get my CCNP. I am very proud of how diverse and broad my IT experience has become. I am well-versed in Azure, VMware, Hyper-V, all Windows Server OS including 2012, All Windows desktop OS including 8.1, site-to-site and remote VPNs (various vendors), Active Directory, SCCM, SCOM, and most of the popular versions of Linux. I am very skilled at designing, monitoring and supporting large server and network environments. I am looking for an opportunity to earn extra work doing the things that I love to do most in IT.

$30.00 /hr
299 hours

Murugeshwari S

Murugeshwari S

Senior Tester, Expert in Functional and Performance

India - Tests: 1

Overall 7 years of experience in Information Technology; Software Testing. Good understanding in Agile methodology with good experience in Scrum Master. Have good Process knowledge in SDLC/TLC models Worked extensively on Customer Escalations, Test Execution status and Defect Status Tracking.Well experienced in Manual and Performance testing also have exposure to Automation testing (Silk Automation) Good knowledge in AR client, Remedy QM applications, TestDirector, Testlink, Fogbugz and Jira. Preparing Test Strategy document, Performance strategy document, Test scenarios, Test conditions, Risk Assessment documents Involved in Performance Testing, System Testing, Integration Testing, Regression Testing, Compatibility Testing, Sanity Testing, Upgrade Testing, Worked closely with support on critical customer issues Microsoft certified in .Net, ISTQB Certified.

$12.00 /hr
756 hours

Dmitry Gorlov

Dmitry Gorlov

Linux Admin / Oracle certified professional

Russia - Tests: 11 - Portfolio: 1

Under construction... I start my IT career since 1992 using FoxBase by IBM-compatible 286AT computer. Today my phone have more powerfull CPU :-) In Linux from 1997, begun from Redhat 6.0 In Oracle from 2003, begun from 8.1.7 10g OCP Certified in 2007. Microsoft MCP in 2007.

100% Job Success
$20.00 /hr
445 hours