Network & System Administrators

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  1. Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Netherlands - Tests: 7

    10+ years of Linux/Network experience with different systems. Finished and delivered SMB solutions to big corporate companies lie BNP Paribas, ABN AMRO or RBS. My main areas of knowledge are: 1) Networking (Cisco/Juniper/F5/BlueCoat and Linux/FreeBSD based solutions like vyatta/pfsense etc) 2) Security - Cisco IPS/IDS, CheckPoint, Linux/FreeBSD based, Juniper etc 3) Linux administration - mail system, database (mysql/mysql cluster), server with high load average, load balancers for server farms (Cisco/F5 based and Linux based like keepalived or apache/nginx with reverse proxy) 4) VoIP - Cisco/OpenSource(Asterisk and different installations based on asterisks like freepbx/elastix etc) There is a very small piece of my knowledge, I'm always looking for opportunity to grow and I'm pretty sure that if you give me tasks - I'll find out best way howto get it done.

    $27.78 /hr
    4,778 hours
    5.00
  2. William Grzybowski

    William Grzybowski

    (Web)Development and Unix-like Consultant

    Brazil - Tests: 7 - Portfolio: 2

    Before I even go to university i started working with Web-development. My first experience was about 6 years ago with pure HTML using frames in Dreamweaver 3. Since then I have worked hard to improve my skills in every way possible, not just as a web-developer but as a general programmer, and now I work essentially with Open Source software like Python(+Django), PHP, Linux/FreeBSD, PostgreSQL, etc.My degree in computer science helped me to understand the basics of a computer from the bits in the processor instructions to multimedia, and thus can be used everywhere to improve the final result of a project.

    $33.33 /hr
    3,500 hours
    5.00
  3. Boris A.

    15yr exp - Linux Systems Architect / ISP / IT Consultant

    United Kingdom - Tests: 4 - Portfolio: 2

    Having been involved in: * gathering customer's requirements (type of applications deployed) * specifying (hardware) * deploying (software and hardware installation, including in data centers) * monitoring / profiling * management * providing adequate documentation in each stage (doc/pdf/Visio) of Linux-based systems, also managing small IT teams, looking for new challenging projects. * BIND and djbdns based DNS architectures; * Qmail / Exim / Postfix-based mail systems; * Websystems to include Apache / MySQL / PHP / Perl configurations; * MySQL - single servers, Master/Slave configurations or Master/Master; * Tomcat/Resin based Java application servers; * Nagios / MRTG / Cacti monitoring and data acquisition; * Design/development and modification of Perl / PHP-based web systems; Also extensive experience in deployment and management of server configurations in data centers.

    $35.00 /hr
    14,510 hours
    4.84
  4. Anshulee A. Agency Contractor

    Cloud Computing Specialist, .NET and Mobile platform Expert

    India - Tests: 3

    I am the founder of Cennest Technologies. Cennest is envisaged as a software -based company focusing on solving business problems by using the best new technology ideas available. It is excites us to not just see trends around us but to realize that we are playing a role in advancing those trends. When the Amazon App store launched, we were involved, when the Samsung Galaxy Gear is being marketed, we are working on a solution around it, when Google Glass is being spoken of, people are coming to us to formulate their app ideas. Some of our strengths are:- 1) Early adapters of new technologies:- Windows 8, Windows Phone 8.1, Surface Apps, HTML5, CSS 3, Android, Azure, AWS,ASP.NET MVC 5/6, etc 2) Real time applications using WebSockets, SingnalR 3) Mobile App development:- Android, IOS ( Objective-c and Swift) 4) Extensive work in User Interface Intensive applications like WPF, Silverlight. Hands on in Blend as well as XAML 5) Expertise in Migrating existing applications/custom application development for Azure and AWS 6) Use of advanced design patterns to create generic frameworks for RAD 7) Expertise in Web based development using AJAX, jQuery, TypeScripting, Knockout.js, node.js etc SQL and OR Database storage and consumption using LINQ, OData, Entity Framework( Code First) etc 8) Extensible storage using Flat databases like Document DB, SimpleDB, Azure Table Storage, MongoDB . Scalable Relational Database using Elastic DB. 9)Office Business Applications 10) Automation Testing frameworks like Frank Test and Selenium

    Associated with: Cennest Technologies- Microsoft BizSpark Startup and Cloud Partners

    $27.78 /hr
    1,057 hours
    4.43
  5. Ezekiel Baniaga

    Ezekiel Baniaga

    Ezekiel Baniaga - Software Developer

    Philippines - Tests: 4 - Portfolio: 3

    With 5 years experience in various areas of Software Development. Concentrated on different open source technologies to provide clients with a low cost but high quality end results. Below are my mastered technologies and platforms: Enterprise: Java, NetBeans Platform, EJB, JPA, JAX-RS, Hibernate, JBoss Application Server, Apache HTTP Server, Tomcat, Jetty Reporting: JasperReports using iReport. Database: PostgreSQL, MySQL, Sybase, JavaDB, HSQL Software bug-tracking and management tools: Subversion, CVS, Trac, Kenai

    $13.33 /hr
    3,914 hours
    4.94
  6. Chalitha Wickramathilaka

    Chalitha Wickramathilaka

    Senior Backend Programmer / Tech Lead

    Sri Lanka - Tests: 2 - Portfolio: 15

    From almost 12 years I have been working with php based web applications. MVC, and Zend Framework 1/2 development environments. I have the same experience with java scripts /jQuery/extjs frameworks. I have more than 7 yrs experience on load balancing . Clustering , and replication over debian, centos and redhat systems. I use Oracle and mysql databases on most of my projects. As a code collaboration tool I am using Gforge with svn/git for my projects. also I have strong experience with iptv application such as tvguides, epg, music applications etc etc. I have been working on high loaded websites, application databases for my work. I have strong knowledge of optimizing web applications smooth run on a very high load. Also I have experience with hardware Visualization on VMware boxes. I have additional experience in ETL Jobs / Mysql clustering / Piranha / php heavy load balancing / caching nodes. Android / FB apps/ REDIS/VMware ESX configuration

    $33.33 /hr
    4,958 hours
    5.00
  7. Diego Gutierrez

    Diego Gutierrez

    Systems admin, DBA, developer, application architect

    Argentina - Tests: 19 - Portfolio: 2

    During my 20+ years of experience, I've gone through several different IT roles: developer, analyst, database designer, database admin, systems administrator, network designer, team leader, architect, CTO. This background allows me to understand all aspects involved in application development, being able to design a complex multi platform app from the ground up as well as help troubleshooting an existing app's problems or weird system behaviour.

    $33.33 /hr
    4,730 hours
    4.96