Top Upwork Freelancers

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  1. Mihail K.

    Mihail K.

    UNIX/Linux administrator

    Belarus - Last active: 1 day ago - 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.

    $16.67 /hr
    88 hours
    4.97
  2. Julio Carvajal

    Julio Carvajal

    CCIE 42930,2xCCNP,Juniper Specialist

    Costa Rica - Last active: 1 day ago - Tests: 2 - Portfolio: 4

    Senior Network and Security engineer with more than 10 certifications from different vendors including a CCIE. As a Cisco TAC engineer I fixed over 2000 different issues on multiple platforms. Let me show you I am your network engineer. Certifications List: CompTIA Security+ CCNA JNCIA CCNA Sec CCNP Security CCNP Routing&Switching JNCIS-SEC CCIE Routing&Switching 42930 Languages: Spanish, English

    $77.78 /hr
    143 hours
    4.91
  3. Niyi B.

    Niyi B.

    Expert MT4/MT5 Developer.

    Nigeria - Last active: 1 day ago - Portfolio: 1

    8 years in the Metatrader development industry backed by 14 years of Software Design & Development with a Bachelor's Degree in Computer Engineering makes me the perfect Coder for your EAs, Indicators, and Scripts. 4 years of 5-Star reputation on Elance buttressed by a Recognition Award makes me the perfect Freelancer for your project. Freelancing full time allows me to provide swift response to your posts and get your job done in record time while providing great support long after completion.

    $33.33 /hr
    225 hours
    4.98
  4. John U.

    John U.

    Sqa, Black box testing

    United States - Last active: 1 day ago - Tests: 14 - Portfolio: 1

    Software and web app QA. With my nine years of Silicon Valley experience in QA with Netscape and America Online, whether you are a large or small company or a start-up, I can handle your QA needs, guiding your product to perfection. My present job of 8 hours per week since 2014, is with Web App Farm in Tampa. A native of San Jose, Ca, I am an expat living in Cali, Colombia, doing freelance QA work.

    $11.11 /hr
    3,137 hours
    4.98
  5. Roland S.

    Roland S.

    PHP programmer experienced in Zend Framework, CMS

    Serbia - Last active: 10 days ago - Portfolio: 29

    I'm a web developer in Serbia with 6 years of experience in the industry. I was worked in older frameworks, but nowadays I work with Zend Framework on a large scale web applications. When i have free time i develop my Cms with Zend Framework which I use as a core in my projects.

    $20.00 /hr
    1,702 hours
    5.00
  6. Andrii Ivanskiy

    Andrii Ivanskiy

    Administrator,DevOps,IT specialist

    Ukraine - Last active: 1 day ago - Tests: 1 - Portfolio: 8

    I am IT specialist with over than 6 years of experience on Windows and OpenSource (Linux) based technologies. I have strong skills on networking, operations systems, network services and applications: - Operating Systems - Windows (Windows NT, 2000, 2003, 2008, 2008R2, 2012), Linux (CentOS, Fedora, Red Hat), FreeBSD - Networks - TCP/IP, routing, VPN, NAT, iptables - Infrastructure and services - Active Directory, DNS, DHCP, Exchange, Lync - Cloud computing - Microsoft Azure, AWS - Applications - SharePoint, SharePoint Online, Office 365 - Databases - MS SQL , MySQL - Virtualization - MS Hyper-V, Vmware, Virtual Box - Scripting - PowerShell, Bash - Internet Technologies and Programming - IIS, Apache, Nginx, HTML, CSS, PHP, C#, ASP.NET, MVC

    $22.22 /hr
    47 hours
    4.85
  7. Piotr C.

    Piotr C.

    Experienced web developer (Python, Postgres, Unix)

    Poland - Last active: 4 days ago - Tests: 5

    Experienced web developer and unix administrator. My best skills include: * good team communication and project management * agile web development using Python and relational databases * deep knlowledge of web applications security * freeride snowboarding ;-) * RESTful and SOAP webservices * unix systems administration (FreeBSD and GNU/Linux) * profiling and optimization of applications

    $35.00 /hr
    1,870 hours
    5.00
  8. Tadej Magajna

    Tadej Magajna

    Zend Certified Experienced Web developer

    Slovenia - Last active: 1 day ago - Tests: 4 - Portfolio: 5

    I am a Zend PHP 5.3 certified developer and back-end programmer with over 6 years commercial experience. An expert in working with CMS systems ( especially Drupal and Wordpress). While working in UK, led a large project building a huge Drupal Site. A master in working with complex MySQL queries and database indexing and optimization. An expert in working with cashing systems ( varnish, memcache). Experienced in working on web server automation, custom bots, crawlers. I can write you any type of bot or crawler you'd like for a reasonable price.

    $19.50 /hr
    55 hours
    5.00
  9. Denis A.

    Denis A.

    DevOps/SRE lead

    Russia - Last active: 1 day ago - Tests: 3 - Portfolio: 6

    My name is Denis. I am from Russia, Siberia(UTC +6). I'll interested to develop smart web applications and/or configure IT infrastructure for yours own projects. My general skills in web development are: Pure: Perl, PHP, JS, some shell scripts for backend purposes, if it needed Frameworks: Yii, jQuery, Smarty, Twitter Bootstrap HTML, CSS of course I love linux and linux-based devices. I haven't favourite distro - all of them good in its own way. Exim, asterisk, nginx with php-fpm for highload distributed service - all that you wish, if it has a documentation. If not - I'll look into sources and set it anyway.

    $32.00 /hr
    129 hours
    5.00
  10. Vladimir Zotov

    Vladimir Zotov

    Asterisk|Network|Linux|AWS administrator, PHP|JS|HTML developer

    Russia - Last active: 1 month ago - Tests: 4

    I work in different IT areas for 9 years. I have advanced skills in network administration, helpdesk consulting, web-development. As network administrator I've builded and supported: - ISP network (routing,switching, billing, asterisk, DNS, Web-servers, email) - large company network (routing,switching, DNS, AD, Web-servers, email) Also I have advanced skills in AWS-infrastructure administration: - Amazon EC2 - Amazon S3 - Amazon Route 53 - Amazon Kinesis - Amazon VPC As web-developer I've created and supported web-sites and services on: - Joomla - Drupal - Bitrix - Yii - Moodle. Also, I'm Certified Cisco Networking Academy and Linux Professionl Institute instructor.

    $8.00 /hr
    27 hours
    4.99