Network & System Administrators

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Paul Irungu

Paul Irungu

Network/Software develper

Kenya - Tests: 2 - Portfolio: 8

I am a .NET developer with 4 years of experience in related fields; I specialize in backend, APIs, web-services and desktop applications. This means that I have familiarity with rest, Entity Framework, XAML, LINQ and a commitment to gaining expertise in Microsoft .NET technologies stack. In addition to my years of experience, I hold Bachelor of Science in Telecommunications Engineering from Makerere University. I'm always looking for opportunity to improve the project I'm working on.I do my best to provide my customers with every bit of knowledge and experience I have. I keep polishing my skills by taking additional courses in my field. I spend as much as 10 hours per week watching training videos and attending online webinars on professional and organizational topics. I am dreaming to take part in some really big data and high-load project

$15.00 /hr
0 hours

Athar Ahmad

Athar Ahmad

Unity 3D Expert | Professional

Pakistan - Tests: 2 - Portfolio: 12

5 Years Of Game Development Experience with Education of BS Honours in Computer Science. Made 20+ Games and an Assembly Game Maker Currently I am a Game Developer (Unity 3D) in SmarNovative Labs ( and Completed almost 7+ Gaming Projects there. Over the Last 5 years I`ve Made Numerous 2d and 3d Games in Unity 3d (3 years), in Native Android (1 year), in Java OpenGL (1 year), C++ (Console), C (Graphics.h) and in Assembly. Apart from this, I have Experienced... - Unity Plugins & Dynamic Unity 5`s UI - Local Database Connectivity in Unity - Server Based Database with Unity - Unity Networking for Multiplayer Games If You are Not Satisfied, Please check my Projects Online ...

$9.99 /hr
0 hours

Sergiy Zaschipas

Sergiy Zaschipas Agency Contractor

WEB IPTV Cloud & SaaS Architect. Code Performance Expert (15+ years)

Ukraine - Tests: 5 - Portfolio: 2

Hi, I am full stack software developer and product manager with 15+ years of development experience. I prefer using opensource tools and libraries. Ruby, Perl, Java, Java Script, Action Script, C/C++ are languages of my projects and MySQL, Postgres, Sqlite, MongoDB, BerkeleyDB are databases for them. Frameworks which help me create perfect applications are Mojolicious, CGI::Application, Ruby On Rails and for sure JQuery and YahooUI. I like different projects and my expertise cover wide area of IT technologies. Projects where I can apply not only my experience but also my mind are my favorites.

$45.00 /hr
9,271 hours

Alejandro Arauz Serafin

Alejandro Arauz Serafin Agency Contractor

C#, MVC, SQLServer, Windows2008Server, Corepoint HL7

Mexico - Tests: 5

I have been programming for the past three years and I have learned how to use different technologies. I have experience developing web applications with C# ASP.NET and I also have experience with Windows Server administration. I would like to work on challenging projects that will help me learn new things and gain more experience with new technologies. I consider myself to be a hard working responsible developer eager to exceed client expectations.

$30.00 /hr
11,419 hours

Jeanette B.

Jeanette B. Agency Contractor

Team Leader||Project Manager||Sytem Administrator||IT Consultant

El Salvador - Tests: 6

I am a very self motivated individual, a very skilled Information Technology consultant and a skilled IT Project Manager I have a Degree of Computer science as well as a Project Maanagement diploma, and technical diplomas in the networking and hardware field. I also have a vast experience of more that 12 years in the System Information field and Project Management position My abilities include: - Web development Experience: -Software Project Management -PHP/MySQL -Forms development : JotForm, Wufoo, etc. .NET /SQL -HTML/CSS -JOOMLA/PHP -JavaScript Other skills -Computer software troubleshooting for operating systems -virus removal/internet troubleshooting - Laptop and Desktop Hardware resolution knowledge: Drivers, software installation issues, file-sharing issues I have worked for Fortune 500 Companies such as, Dell Computers, Western Union and Honda Motorcycles, in a variety of projects from Networking setup and administration to Software Development and Database administration.

$25.00 /hr
7,496 hours

Valery P.

Valery P. Agency Contractor

PHP / ExtJS / Web Developer / Zend Framework

Belarus - Tests: 3 - Portfolio: 31

Open to relocation to Europe for a long-term contract. More that 9 years, I participated in many projects with different programming languages, such as Java, PHP, JS, Delphi, C#. Developed and improved many websites, programs, and CMS systems. Also worked on development of few CRM systems. My primary skills: - Operating systems: Windows (all), Linux (Gentoo, Ubuntu, Debian), MacOS. - Programming languages: PHP, JavaScript, SQL, Java, UNIX Shell scripts, HTML, CSS, XML. - Frameworks: Zend Framework, ExtJS 3, ExtJS 4, Phalcon PHP Framework, JQuery, Google Maps API. - Databases: MySQL. - Technologies and tools: JPA, Hibernate, JPQL, RabbitMQ, Maven, GIT, Kount API, Google Maps Distance Matrix API, PayPal API, Fidelity API, USAePay API, API, Froogle API, UPS API, JSON, AJAX, Hadoop, Hadoop MapReduce, HDFS, Hadoop Fair Scheduler, WebDAV, Hibernate, Spring, Apache, CVS, SVN, Tomcat, JBoss, GMF, EMF, DITA, Apache Servicemix, Apache Axis2, SOAP, TestNG, JUnit. - Network and Server: Microsoft Network, XAMP, LAMP, Linux, TCP/IP protocols stack, FTP & HTTP protocols, Active Directory. - Other expert knowledge: PSD to table less and valid DHTML, distributed computing, huge data processing, Eclipse programmer (Plugins, UI, OSGI). - Computer Application: IntelliJ IDEA 14, Adobe Photoshop CS4, Navicat 11, Zend Studio, Eclispe. I like to participate in new projects, especially those ones which allow me to research new technologies and learn new tricks. Now I'm working with solutions for managing big datasets, ecommers, shopping cart, social engine, payment systems, supporting web sites... Looking for long term partnership. Please take a look on portfolio and work history. Thanks.

$25.00 /hr
8,230 hours

Diego Woitasen

Diego Woitasen Agency Contractor

DevOps, OpenStack, Linux and Open Source

Argentina - Tests: 5 - Portfolio: 2

I’m an engineer focused on: DevOps Engineering OpenStack Linux and Open Source. I have more than 10 years of experience working with Linux and Open Source, providing solutions for small, medium and big companies. My specialties are: * Automation, Orchestration: Chef, Saltstack, Puppet. * Cloud and virtualization solutions: OpenStack, AWS, RackSpace, Digital Ocean. * Coding: Python, Ruby, C, C++, PHP, Perl * High Availability. * Load Balance. * Scalability. * Network services, I love challenges, new environments and help to my clients to make their life easier. Get more information about me here:

$55.56 /hr
1,684 hours

Ioan Alexandru T.

Ioan Alexandru T. Agency Contractor

Network and System Engineer

Romania - Tests: 7 - Portfolio: 4

I am an energetic, well-spoken and capable Network & System Administrator with expertise in Linux Server Administration and Network equipments. I enjoy working on all things IT related, and I have extensive experience of resolving Linux server problem and also network related problems. My key strengths include, but are not limited to: - WebServers: Nginx, Apache, Tomcat; - Databases: MySQL, MariaDB, CouchDB; - Mail Servers : Postfix, Dovecot, Qmail, DBMAIL; - FTP: Vsftpd, ProFTPD, Pure-FTPD; - VPN: OpenVPN, PPTP; - Firewall: csf, afp, custom iptables firewall; - Backup Solutions; - Proxy Servers; - Bash Shell Scripting; - Web Security (PHP Security php_suhosin, Apache Security mod_Security, OS Security (malware detection), Antivirus (clamav)); - - Traffic Control Scripts based on TC; - Monitor Technologies; - TCP/IP, VLANS, Routing Protocols - (RIP, EIGRP, OSPF) I have CCNA Certification and during time I had participate to online courses to improve my experience in Linux, Security, Firewalls. I will bring to your company or project fresh ideas, new perspectives, a diversity of experiences, and a dedication to service.

$11.11 /hr
2,822 hours

Andres Montalban

Andres Montalban Agency Contractor

Cloud Architect / DevOps Engineer / Senior Linux Sysadmin / AWS

Uruguay - Tests: 6 - Portfolio: 3

Over the last 10 years I have worked with World Class IT Infrastructure configuring, deploying and maintaining routers/firewalls/servers all over the world using the most recent technologies. In the following list you will find my knowledge in the computer and network technologies: Linux servers and desktop administration Apache web servers running in Linux, Windows and Unix (FreeBSD/OpenBSD) Mail servers configuration/administration using qmail, Postfix and Exim Good experience with Cisco routers, switches and firewalls (PIX) DNS servers administration using BIND Control panels knowledge, Plesk, Cpanel, Virtualmin, H-Sphere OpenVPN client/servers configuration Untangle configuration/setup Asterisk setup/configuration using Asterisk source or using fully customized installations like Elastix Services and server monitoring using Zabbix, Nagios, BigBrother and Cacti Database servers using MySQL/MS SQL/PostgreSQL Windows 2000/2003 configuration/administration for AD purposes, Exchange Mail Servers, WWW/DB servers Samba deployments using LDAP backend to store user information Experience with Linux Clusters using Heartbeat and Linux Virtual Server NAS, iSCSI, SMB network storage knowledge. I have experience with FreeNAS and Openfiler Experience with IBM Bladecenter S using HS12 and HS21 servers, from build to put the servers in production using Gentoo/Samba/LDAP/GoSA and Asterisk for the HS12 OpenWRT installations and configuration using Routerboard/PCEngines embedded PCs pfSense configuration/customization I have installed Wordpress, SugarCRM, V-Tiger, OTRS, Zimbra, Roundcube, and many others open source software in production environments

$44.44 /hr
2,087 hours

Shahzad Ali

Shahzad Ali Agency Contractor

Wordpress Expert,Mobile sites/Responsiveness, Custom theme,web updates

Pakistan - Tests: 7 - Portfolio: 138

I'm TOP RATED and Upwork verified WordPress developer with over five years of experiences in WordPress. I am also a senior HTML developer with extensive experience in building high quality sites and Responsive as well. My goal is to provide high quality services. I always try to make long-term position for web development companies. I am very hard worker, good English speaker and with good experience. My Skills: - Strong experience with developing Mobile sites - Strong experience with Web Development from Scratch - Extensive experience with Wordpress Customizations - Strong Knowledge about Wordpress Security - Creating an overall unified look and feel for the site - Responsive design expertise - PHP development experience - Expert developer knowledge of Wordpress (custom posts/plugins/widgets, theme dev, database/mysql, WP APIs) - Strong design sense. Attention to detail - Strong HTML, CSS and Javascript skills - Ability to work off of PSD files, code and effectively visually replicate for the web. - Strong sense of modern web design trends - Strong understanding of modern web standards & best practices

Groups: Application Developers Alliance, Bluehost Developers and Designers...

$16.67 /hr
6,618 hours