Network & System Administrators

Clear all filters


SYED MOIN UDDIN Agency Contractor

Software developer

India - Tests: 3 - Portfolio: 1

Software developer with four years of experience in developing application in java and python on Linux platform. Have strong expertise on developing and deploying application on modern devops frameworks – openshift on docker and coreos / redhat / centos. Have strong experience of developing web 2.o platform UI on HTML5, CSS3, Java Script, JQuery framework. Have implemented web deployment and management in NGINX, Apache Httpd and implemented advances system management mechanism like reverse proxy, SSL termination, load balancing. Solid implementation experience of databases – mysql , oracle , postgres , mongodb. Implemented Mysql Galera cluster replication and Oracle RAC. Very good shell scripting experience towards system automation. Solid understanding on software development methodologies and implemented Atlassian ALM tools towards setting application lifecycle management.

Associated with: PTR Technologies

$15.00 /hr
135 hours

Dan Galeev

Dan Galeev

Software Developer

Germany - Tests: 3

Programming languages: - Python (django, twisted, lxml, imaging, jinja2, matplotlib, wtforms, tornado, ...) - preferred - Objective C - Javascript (JQuery) - (X)HTML, CSS Unix-systems administration: - Debian - RedHat - FreeBSD - Ubuntu - ArchLinux - OpenSuse Databases - administration and developing: - MySQL - Postgres - Oracle - SQLite - MongoDB Version control systems: - Mercurial - Git

$20.00 /hr
204 hours

Xupeng Y.

Xupeng Y.

Linux system expert / Python developer|China

China - Tests: 4

I have 9 years Linux experience, and more than 4 years experience with professional Linux system administration, I am skilled in deploying and maintaining Linux-based services such as: virtualization(Xen, KVM, Vmware, Openvz), LAMP stack and Java stack deployment and management, DNS(djbDNS prefered), openvpn, web server administration(Apache, Nginx), mail server(postfix, popd, imapd). I have great debugging/problem resolving skills with Linux server/services, which can save you much time and money. I am also an experienced Python/Django developer, with more than 3 years commercial projects development experience, I have been working on more than 5 Django based web sites, such as

$27.78 /hr
201 hours

Gerry Litwin

Gerry Litwin

Senior Application Developer

United States - Tests: 1

Highlights: Demonstrated record of high performance standards, including attention to detail, schedules, deadlines, budgets and quality work. Extensive experience in: Visual Studio (2005-2013) ASP.NET (2.0 - 4.5.1) SQL Server (2000-2014) DevExpress Excel C# ASP JavaScript Object Oriented Programming .NET Compact Framework SQLLite MySQL Oracle Sybase HTML DHTML XML MS Visual Studio 6 MS Visual Studio .NET 2002/2003/2005/2008/2010/2012/2013 MS TFS MS IIS MS Project MS Visio MS SQL Server SQL Azure Windows Azure Adobe Photoshop. Freelance -Application Development -Database Administration

$38.89 /hr
50 hours

Vladimir Stankov

Vladimir Stankov

CCNP Voice | Cisco VoIP Expert


Cisco VoIP Engineer with 7+ years of professional experience with Cisco Unified Communications and Collaboration technologies: CUCM, CCME, UC500, UC on UCS, CUBE, Unity Express/Connection, Presence, SIP, H.323, SCCP, MGCP, QSIG, TelePresence VCS, MCU, Codecs, Profiles and more.

$25.00 /hr
143 hours

Alfredo Solano

Alfredo Solano

Database and System Administrator

United States - Tests: 2

I am a seasoned database and system administrator with over 20 years of experience. If you're looking for simple stand alone programming or strategic enterprise implementations or anything in between, you've found the right person. I have developed and maintained various applications using Microsoft Access and VBA. I've been fortunate to take part in many enterprise level software implementations including Computerized Maintenance Management Systems (CMMS), Laboratory Information Management Systems (LIMS), Geographic Information Systems (GIS) using ESRI products, and PeopleSoft Systems (HR and FSCM). My part in these projects included both technical and project management duties. On the back end I sized, installed, and configured the UNIX (AIX, Solaris, and Linux) and Windows servers. I installed and configured the Oracle databases for these applications. Oh and of course, production maintenance for all the above is also included.

$80.00 /hr
1 hours

Donovan F.

Donovan F.

Cloud Engineer and Linux Expert

South Africa

I am an accomplished Systems Administrator with over 13 years professional experience building infrastructure and platforms for small web hosts, the enterprise data center and the cloud. My primary specialties are Linux systems, open source software, and cloud platforms. I began my career integrating Linux systems and varies opensource technologies for Internet Service Providers and Telecommunications providers. I realized that integrating programming/scripting into my skill set would automate and provide easy of implementation to many of my projects. Here is a brief sampling of skills and technologies I am currently (2015) working with: Linux - RHEL, CentOS, Ubuntu, and FreeBSD Datastores - MySQL, PostgreSQL, Memcached, Redis, MongoDB Monitoring - Nagios, Munin, Cacti, Shinken Management - Chef, Puppet Platforms - AWS, Rackspace, OpenStack Frameworks - Rails Lanaguages - Ruby, Python, Perl, PHP SCM - Git, SVN

$27.78 /hr
6 hours

Marcel Verspuij

Marcel Verspuij

Social WiFi specialist

Netherlands - Tests: 1 - Portfolio: 2

For different customers I build social WiFi solutions. From city free WiFi solutions to small business plug & play social WiFi solutions. This for MikroTik en OpenWrt routers. The cloud WiFi CRM is brand independent. It can serve the social WiFi landing page for many different captive portal and hotspot solutions. The cloud WiFi CRM is white label. Each customer can have his own look and feel. Customers can add their own functionalities and reports in the CMS. Because of the different international customers solutions are build in Amazon cloud or on their private server. Linux and Radius experience is high.

$33.33 /hr
4 hours

Rodney Caston

Rodney Caston Agency Contractor

Systems Engineer

United States - Tests: 3

I have over fifteen years experience in linux systems administration and development, having managed large environments composed of many thousands of systems. I believe I bring with me a valuable perspective on how to provide solutions for efficiently managing extremely large, and distributed environments without scaling headcount. Some of my accomplishments include having built site reliability/network operations centers from the ground up, from the development of the fault and performance management systems to the management of the staff. I have built up and administered large scale email infrastructures which would send and receive millions of emails daily. I have managed datacenter migration projects consisting of thousands of servers running live services. I have extensive experience in the online gaming industry, focusing on adminsitration, server engineering, and DevOps. I have even worked in a creative capacity as a writer and creative designer in the past, having co-created the MegaTokyo™ intellectual properties. Given the variety of roles I've had in my career, I consider myself a jack-of-all-trades. What I enjoy most is being able to provide value to the organizations that I am able to support, regardless of what role that places me in at the time. Specialties: Amazon Web Services, Apache, Backtrack 5, Bind/DNS, Cacti, Chef, Cloud, Drupal, Elasticsearch, Ganglia, Glusterfs, HAProxy, Heartbeat, Kibana, LDirectord, Linux (Ubuntu, Debian, Redhat, CentOS, Kali), Logstash, Memcache, Metasploit, Monit, MongoDB, MRTG, Munin, MySQL Server, Nagios, Netcool, Nginx, Offensive Security, OpenVAS, OpenVPN, OSSEC, OSX, Penetration Testing, Postfix, PowerDNS, Puppet, Ruby, RRDTool, SAN, Samba, Sendmail, Shell Scripting, Splunk, Squid, Syslog, SMTP, SNMP, SSL, Squid, TCP/IP, VMWare, Windows, and Xen.

Associated with: Caston Consulting LLC

$91.11 /hr
1,634 hours


Nidhal ELABED Agency Contractor

ASP.NET MVC,WPF,WCF & Android Developer

France - Tests: 5 - Portfolio: 9

During my studies I gained a strong knowledge of several areas of science and computer with a solid two-year preparatory class (Mathematics-Physics), and then I joined the National School of Computer Science, where I invested my passion for computer and new technologies and I gained new acquaintances on design and development of computer applications. I am actually an ASP .NET MVC developper in CodersCloud company where I have participated in development and design of severals products and projects. Over the 2 last years, I have developed a variety of application for many small society using Microsoft tools :WPF,C#,VB,.Net,LINQ TO SQL ,SQL Server .Besides I developed many Android Applications using the geolocation of Google (google Map),the REST webservice ,MySQl and Oracle DataBases. My basic skills is the management of a development project management applications and mobile applications stocks Android, and I'm looking for opportunities to build applications in these fields for you or your company.

Associated with: Zmonka Agency

$20.00 /hr
36 hours