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Last updated: October 1, 2015
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Sergey P.

Sergey P.

VoIP and Linux Engineer

Russia - Tests: 5

OS: linux (gentoo, debian, centos ...), FreeBSD over 10 years using/administration Lang: perl, lua, shell (java, ruby, erlang studying) VoIP: asterisk, freeswitch, gnugk, kamailio/ser (over 7 year administration) PBX: Si2000 (v.5), Definity administration (SS7, ISDN) DB: mysql, postgresql Sec: DMVPN, IPsec, OpenVPN Publish: LaTeX

100% Job Success
$30.00 /hr
76 hours

Martin L.

Martin L.


Bulgaria - Tests: 8 - Portfolio: 5

Over the last eight years I have been involved in the development of web (Internet and Intranet) projects using PHP and part of my work in the last four years was to maintenance high available SQL and noSQL databases - to architect and optimize their structures and queries. Also I'm server administrator with 6+ experience with Linux ( Slackware 6-13, CentOS 4/5/6/7, Fedora, RedHat, Ubuntu, Debian). My skills include, but are not limited to configuring of network and firewalls, web servers (nginx/lighttpd/apache), databases (MySQL and MySQL Cluster, MariaDB, Percona, MongoDB full shareded and replicated clusters, Redis, Memcache and MemcacheDB clusters), message queue servers (RabbitMQ clusters and MemcacheQ), Elasticsearch, Haproxy, GlusterFS Clusters, NodeJS apps, KeepAlive HA clusters. DevOps experience with CoreOS, Google Cloud Compute, Amazon, Docker, Puppet and Ansible.

70% Job Success
$44.44 /hr
2 hours

Denis Ilijevic


Croatia - Tests: 7

I'm interested in new technologies, computer networks, computer security, operating systems and project management. For the last year I have been working with Microsoft and Oracle databases. Beside their procedural languages I learned how to use XQuery and XPath for querying XML documents in both databases. I have experience with BIND DNS and ISC DHCP and network administration, computer security and with Unix/Linux/Window operating systems.. Before accepting any job I will do a detail interview because that's the best way to find out if I can do a job. I guarantee for my work, before any payment I like to show what I did and answer any question you ask me. If my client isn't satisfied with with my work than I won't ask for any money but I will ask where I did wrong. My moto: satisfied client = happy client

$5.00 /hr
152 hours

Marc Gray

PHP/JS/HTML5 Expert Developer and Linux Administrator

United Kingdom - Tests: 12 - Portfolio: 1

I am an expert developer and system administrator with PHP, MySQL, Javascript, CSS3, HTML5 and Linux (I currently use: RHEL, CentOS, openSUSE, Fedora. I have previously used Gentoo and Ubuntu). I have previously developed/configured: - Full eCommerce framework with innovative admin panel (PHP, Javascript) - Automated video transcoding service (PHP, Linux, ffmpeg) - Automated document conversion service (PHP, Linux) - Database driven SFTP service and firewall stored over NFS (PHP, Linux) - Differencing document storage solution (PHP) - Deduplicating backup storage solution (PHP) - Multiple fault tolerant storage servers with 12tb of space (Linux) - Multiple complex scripted firewall setups using iptables (Linux) - Flash website without Flash, with pixel perfect design and advanced effects (Javascript) - MIME Email framework to replace PHPMailer (PHP) - ... and much, much more I also work as a white-hat hacker, where I probe and test servers for vulnerabilities. I have previously been CRB checked and treat all clients with confidentiality. I am happy to sign an NDA.

100% Job Success
$35.00 /hr
241 hours

Malith H.

Malith H.

Network and IT Security Engineer Cisco, Juniper,Checkpoit, Microsoft

United Kingdom - Tests: 1 - Portfolio: 1

To work in a competitive environment that effectively utilizes my analytical, interpersonal, leadership and organizational skills to conceive and achieve solutions. The solutions which help the organization in not only meeting its targets, but also allowing it to grow, thereby, enhancing my own skills as an individual and as a key player in the organization's development. Summery Over 5+ years of experience in planning, designing and implementation of LAN/WAN, WLAN, VPN networks. Expert knowledge of Cisco and Microsoft networks environment. Hand on experience in network, security, systems administration and systems support. Certified in CCNA (R & S), CCNA Security and CCNP certified (Routing & Switching); comfortable with Cisco 806, 1600, 1700, 2500, 2600, 3600, 7200 Series Routers, Cisco Catalyst 1900, 2900, 3500, 3650, 3700 Series Switches and wireless access points and bridges (Cisco Aironet 1200 series APs, 1300 series Bridges ) Expertise in SME LAN,WAN & CAN design, configuration & implementation with cisco devices, wireless network design/configuration & implementation, good working knowledge in Wide Area Networks (WANs) e.g. ADSL, MPLS, Frame Relay, PPP, ISDN. Experience in security implementation and firewalls, Site-to-Site & Site-to-Multisite VPN, DMZ, SSL, remote access and access control servers. Good hands on experiences with checkpoint safe@office 500, Check Point U-5 130, CheckPoint CPUTM-EDGE-N32 and Cisco ASA firewalls. Good knowledge of configuring Cisco based routing e.g. RIP, EIGRP, IGRP, OSPF, BGP, MPLS, VRF,HSRP, VRRP, GLBP, NAC, route redistribution, NAT, Route maps and switching e.g. VLAN implementation, STP, VTP, Access lists, L2/L3 Switching etc. Experience in designing cable and wireless networks, structured network cabling such as STP, UTP, coaxial etc., installation and configuration of LAN, WAN and wireless networks with active components such as routers, switches, firewalls, modems, access points, repeaters etc. Well understandable knowledge and hands on experience in Windows server 2003, 2008, Linux Cent OS and Redhat 5.

$15.00 /hr
0 hours


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
142 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

Petr B.

Petr B.

Senior Developer, Consultant

Russia - Tests: 5 - Portfolio: 2

I have strong background in UNIX/Linux software development, Master's Degree in Computer Science. I worked on Enterprise high-load distributed hosting automation systems as a Team Leader (3.5 years in SWsoft, Inc., now called Parallels). For the last 6 years I'm running my own small software development business in Russia with primary focus on Python/Django apps. Not pure Web but often involving integration with hardware (Proximity Cards, Sensor Screens) or external systems like Payment Processing, SMS Gateways, GABRIEL (Airline Reservation System), etc. I can take an idea and turn it into a working business, through all the intermediate stages. Also I have experience of investing my own funds in my projects, so I feel the difference between "perfect code" in a month and "good enough" code that increases the revenue right now. Nevertheless, my code is very good: no copy-paste, always written with performance, flexibility and security in mind, etc. On oDesk I'm looking for (and actually find :) interesting projects with a sight on long-term fruitful cooperation. I'm also open to smaller activities (e.g., consulting) where my knowledge can be helpful.

Groups: Coding Champs

100% Job Success
$40.00 /hr
1,739 hours

Daniel J.

Daniel J.

Senior Linux Systems Administrator

United States - Tests: 4 - Portfolio: 1

I am a Linux expert. I have been a linux user for 16 years and have used it professionally for 15 years. I was an early adopter of the Nginx web server and over the last 5 years I have been using it exclusively to manage high traffic web sites. I specialize in Linux security and have professional experience securing a web server using methods such-as but not limited to; chroot/jail environments, hardened kernel patches, and role-based access policies. I am an expert at tracking down even the most difficult of problems and most of my clients believe that I have a crystal ball under my desk. I am fluent in Python and PHP and can write everything from small scripts to automate tasks to a full blown command line application.

97% Job Success
$50.00 /hr
61 hours