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Mihail K.

Mihail K.

UNIX/Linux administrator

Belarus - Tests: 5

I love UNIX! I love one-line shell scripts! I work with Debian, RedHat, HP-UX. Little with OpenSolaris and FreeBSD. I have experience in creating and supporting monitoring systems based on Zabbix and Nagios (several tens of servers with different OS). I am well familiar with network protocols and tools for testing and troubleshooting (wireshark, tcpdump, nmap, traceroute, etc.). I have experience in creating secure VPN tunnels based on OpenVPN, IPSec, L2TP/IPSec, GRE and PPTP. I was installing and configuring lighttpd, apache httpd, nginx, exim4, dovecot, samba, OpenLDAP, etc. I have experience with creating mail servers used in hosting company for many customers. I was working with virtualization Xen, KVM, VMware. Have experience with cloud services like Amazon EC2. I have experience in installing and configuring Oracle 10g, 11g, PostgreSQL, MySQL.

$17.78 /hr
107 hours

Valery E.

Valery E.

System Administrator / Software Architect

Belarus - Tests: 9

Over 10 years experience in: a) Administration from servers to WAN-size networks: Cisco/HP/Huawei/ZyXEL, Linux, Windows, Virtualization (HyperV, KVM, Xen, etc), DBMS (MySQL, PostgreSQL, etc), web servers (Apache, nginx, nodejs etc,), DNS (bind, powerdns), etc. b) DDoS mitigation, web software optimization, creating highload/high-availability systems. c) Web development - from webpages to large OLTP applications (billing services, marketing services, banner networks). Can code on c/c++/php/bash (and similar).

$30.00 /hr
28 hours

Avtar M.

Avtar M. Agency Contractor

Advanced Asp.Net, C#, Ajax, MSSQL Developer- CEO of Future Expert Pvt

India - Tests: 12 - Portfolio: 4

After concluding my bachelor's and master's degrees in Computer Science, I Joined many local and MNC companies like Xeo Software Inc, rising to position of Project Leader. My signature accomplishment was becoming Microsoft Certified Professional Developer. Today, I am CEO of Future Expert Pvt. Ltd., India based software outsourcing company.  My core expertise lies in Microsoft Technologies like ASP.NET, C#, VB.NET, AJAX, Silver Light, SQL-Server, Desktop Application, Windows Mobile Application, Web & Windows Services, etc. We work on highly accepted Industries wide coding standards by following various Design Patterns and OOPS concepts.

$11.11 /hr
2,323 hours

Jose Arteaga

Jose Arteaga

Cisco Telecommunications Engineer - Powering productivity through Comm

Venezuela - Tests: 6

Who I am... Network Engineer with 5+ years of experience working with a variety of technologies from different vendor like Cisco, VMware, Microsoft, Watchguard, Barracuda, etc. I had designed and implemented networks from scratch starting on the infrastructure (Routing and Switching), Security and finally the Applications (Unified Communications and Collaboration). My Mission... I specialized on designing and implementing network solutions for small, medium and large businesses in many different vertical markets like the oil and gas industry, banking, food and beverages industry and others. I had achieved customer satisfaction 100% of the time and exceeded their expectations while staying on-budget, meeting deadlines and finding new business opportunities inside the company and the customers. Always looking for the biggest challenges that help me excel myself not only in the networking field, but also in the business management side of the company making myself an integral and interdisciplinary engineer capable of achieving the impossible.

$50.00 /hr
257 hours

Antonio S.

Antonio S.

Software Engineer

Italy - Tests: 6 - Portfolio: 3

Over the last 7 years, I have developed a wide range of web applications using HMTL,CSS,JQUERY, PHP, and MySQL. My core competency is DRUPAL development. I am seeking opportunities to build websites from the ground up or develop custom modules. I also have some experience in the following areas: SQL, Ajax, OOP, ASP, C++, C#, ASP.NET, IIS, APACHE, linux administration.

$24.44 /hr
158 hours

Carlos Moran

Carlos Moran

Rails dev - Linux admin

Argentina - Tests: 19

Over the past 20 years I have been involved in several large projects including both software and hardware elements. I am looking to bring my expertise to businesses that have complex needs but don't have the volume to justify the expense of in-house talent. My skills include: - Project and team management: I have led web development projects from 3 to 30 people, using RUP, Scrum and homegrown methodologies. I know how to earn trust and gain the respect of collaborators, management, peers and clients. - Rails - I love the platform and have been working almost exclusively in RoR projects in the past 4 years for several different clients. - I prefer to use Thin, nginx, haml, jQuery, Semantic UI, Webistrano, MySQL or SQL Server, RVM and Rails 4.0 for new RoR projects. - I have experience consuming services like Twilio, SendGrid, UrbanAirship, and interfacing with payment gateways (usually Stripe and PayPal). - TCP/IP networking in general and the most popular protocols: HTTP/HTTPS, SMTP, POP3, SNMP, SSH. I also have a lot of experience troubleshooting connectivity and performance problems. I enjoy working with peers, but I can also work alone as developer and server administrator in small projects.

$47.78 /hr
34 hours

Reza I.

Reza I.

✔ Sr. Network & System Administrator (UNIX,Linux,Cisco,Shell,Perl)

Indonesia - Tests: 9 - Portfolio: 4

Over last 8 years I have design & deploy wide range network and server system using Cisco networking, Open Source Operating System like Linux and BSD or Windows Server. My core competency lies in complete end-end management of network infrastucture. I am looking for opportunities to design, setup and maintain networking infrastructure. I have extensive experience in Perl/Shell Programming, open source server applications such as integrate and modify, TCP/IP networking, Cisco Switch and Router, IT broadcast equipment such as SAN/NAS video server, digital media editing, project management and documentation

$20.00 /hr
402 hours

Serhiy T.

Serhiy T.

Linux, FreeBSD, Windows, Network, Apache, MySQL System Administrator

Ukraine - Tests: 12 - Portfolio: 1

- Operating systems: FreeBSD, openSUSE, Red Hat, CentOS, Debian, Ubuntu, Gentoo, Windows: 2000/2003/XP/Vista/7, Mac OS X: 10.4-10.6 - Programming languages (basic level): Bash, PHP, Perl, SQL, C, Objective C, html - Network protocols: TCP, UDP - Network services: DNS, FTP, HTTP, HTTPS - Web Servers: Apache, Nginx, Tomcat - MTA: Postfix, Qmail, Exim - FTP Servers: Pure-ftpd, Proftpd, vsftp - Firewalls: ipfw, ipchains, iptables - Network tools: route, iproute2, natd, tcpdump, netcat, trafshow - Databases: MySQL, MSSQL, Redis - Network file systems: GlusterFS - Virtualization: OpenVZ, Xen, VMware, Virtual PC - Version Control Systems: Subversion - Control panels: cPanel, WHM, Plesk - Monitoring systems: Nagios, Zabbix, Monit, Munin, Cacti - Cloud services: Amazon EC2 - Bug tracking systems: Mantis, Redmine, Trac, Jira - VPN: Mpd, OpenVPN, PPTP - Other software: Squid, Samba, Bind, Radius, Varnish, HAproxy, Wowza Media Server

$33.33 /hr
44 hours

Julien P.

Julien P.

Systems and Security Administrator

France - Tests: 10 - Portfolio: 1

I work as a network, systems and security administrator in a big french firm. I do the usual IT administration work (high availability, troubleshooting, monitoring...), plus we manage the cloud computing part for our customers. My environment is composed of 5000+ devices in our datacenters (physical servers, VMs, ESX, routers, switch...) I am someone who is able to adapt, polyvalent, and I am here to grow in experience and talent, in interesting projets.

$11.11 /hr
3 hours

Dimitrios Papadopoulos

Dimitrios Papadopoulos

Senior Networks/System Engineer

Greece - Tests: 8

Starting in 1994, when internet was a horrified 80x25 text character terminal, I had the chance to go through the late 90s internet-boom and the Web 2.0 era. Since then, with over 15 years of experience dealing with large telecommunications companies, Internet Service Providers and data centers, I had the opportunity to work on several cutting-edge IT projects and their associated systems and network implementations. I specialize in Linux and UNIX systems setup and administration at low level (shell) that includes installation, configuration, optimization and monitoring of the operating system and its accompanied application services and protocols such as apache/http, bind/dns, MySQL, sendmail/postfix /smtp, imap/pop3 etc. Also, at the network layer, I've designed and implemented routers based on Linux and/or CISCO platforms offering networking services from simple IPv4/IPv6 routing and its related technologies and protocols (RIP, OSPF, BGP) to more complex network services such as layer 3-7 firewalls, Intrusion Prevention & Detection Systems, VPNs, VoIP & QoS, monitoring, auditing, troubleshooting, security assessments etc. In the recent years of the cloud infrastructure technology, I learnt to deal with XEN and VMware Hypervisors while configuring hardware and software to provide IaaS and SaaS in virtualized environments.

$25.00 /hr
0 hours