Top Upwork Freelancers

Clear all filters
  1. Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Netherlands - Last active: 2 days ago - Tests: 7

    10+ years of Linux/Network experience with different systems. Finished and delivered SMB solutions to big corporate companies lie BNP Paribas, ABN AMRO or RBS. My main areas of knowledge are: 1) Networking (Cisco/Juniper/F5/BlueCoat and Linux/FreeBSD based solutions like vyatta/pfsense etc) 2) Security - Cisco IPS/IDS, CheckPoint, Linux/FreeBSD based, Juniper etc 3) Linux administration - mail system, database (mysql/mysql cluster), server with high load average, load balancers for server farms (Cisco/F5 based and Linux based like keepalived or apache/nginx with reverse proxy) 4) VoIP - Cisco/OpenSource(Asterisk and different installations based on asterisks like freepbx/elastix etc) There is a very small piece of my knowledge, I'm always looking for opportunity to grow and I'm pretty sure that if you give me tasks - I'll find out best way howto get it done.

    $27.78 /hr
    4,749 hours
    5.00
  2. Roman Gorokhov

    Roman Gorokhov

    Expert FreeBSD/Linux Administrator

    Spain - Last active: 1 day ago - Tests: 6

    • 15+ year’s experience in the IT field. • Deadline conscious on all projects and assignments. Resolved IT related issues and concerns under strict deadlines. • Proactively implemented enterprise project deliverables at basic to intermediate levels. • Provided installation, configuration and maintenance of UNIX -based systems for different tasks: http, mail, ftp, dns, proxy, firewalls, smb, backup; web applications – from postfixadmin tо sugarcrm. BSD, Linux, Solaris, QNX. FreeBSD is my favorite. • FreeBSD Port contributor.

    $25.00 /hr
    111 hours
    4.82
  3. Dharmesh P.

    Dharmesh P.

    Official Odoo(OpenERP) Partner - ERP Solution Expert

    India - Last active: 3 days ago - Tests: 2 - Portfolio: 8

    With over 8+ years of experience in Odoo(OpenERP) and having worked for 900+ hours on oDesk, I offer Odoo(OpenERP) Development, Customization, Integration, Migration, Implementation as well as Maintenance and Support. I also conduct Odoo ERP Functional as well as Technical Training. I can deliver cost-effective, high quality and user-friendly open source solutions catering to your business needs.

    Groups: Application Developers Alliance

    $20.00 /hr
    961 hours
    4.98
  4. Sergey Kogut

    Sergey Kogut

    Sr Windows and Linux Systems Admininstrator

    Ukraine - Last active: 2 days ago - Tests: 1

    Hello, I'm a System Administrator with 11+ years experience. I have worked earlier with hosting companies like hostpro.ua, 1gb.ua, hostclear.com, justhost.com and SingleHop.com. I've great experience with WordPress, cPanel/WHM, Plesk and server configuration (Bind, Postfix, Apache, MySQL, FTP and etc) + Virtualization OpenVZ Also I know CentOS and Ubuntu rather good (installation and configuration of software like ffmpeg, 3dproxy, Maldet, OpenVPN, Bugzilla and etc) Also I've a good experience with Nginx + PHP-FPM + Nginx Cache + Varnish Cache Currently I work remotely as a system/server administrator at RipaMedia Inc. I love my job and also I like to help people like you :)

    Groups: Bluehost Developers and Designers

    $22.22 /hr
    138 hours
    4.90
  5. Sachin C.

    Sachin C.

    Coldfusion, SQL Server, Oracle, Twilio, Stripe, PHP, FFMPEG, ExtJS

    India - Last active: 1 day ago - Tests: 4 - Portfolio: 1

    I have extensive experience in developing web applications using coldfusion, php, asp, asp.net, jquery, sql server, Oracle. I also have expertise in migration of coldfusion websites including installation of webserver. I have extensive experience working on integration of Facebook, Gmail, Yahoo, linkedin, Twitter and Twilio API's.I have sound knowledge of domains like Benefits, Ticketting systems and Publishing systems.

    $20.00 /hr
    4,278 hours
    4.71
  6. Sridhar G S

    Sridhar G S

    Expert testing professional having 15 yrs exp in software testing

    India - Last active: 1 day ago - Tests: 6 - Portfolio: 10

    - A total of 18 years experience in IT industry and 15 years in Software testing and Quality Assurance for complex applications - Expert in manual and automated testing - QA activities such as test planning, test scheduling, test metrics, test reporting, QA process, setting up test environment. - Expert in web site / web application testing. - Expertise in testing Cluster Server (Veritas Cluster Server) and Storage (Veritas Volume Manager, arrays HP, EMC, NetApp) technologies. - Extensive expertise in QA life cycle and automation experience at Testing, System Testing, Regression Testing, Performance Testing, Functionality Testing, Winlogo Testing, SCS Testing, Formulating Test Strategies and Test environment, Preparation and execution of Test Plan and Test Cases, QA Report. - Experienced in testing on Windows 8.1, Windows XP, Windows Server 2000, 2003, 2008, Active Directory, Microsoft Exchange 2000/ 2003 Servers - Documentation Review (Won the first prize for doc review bug bash)

    $11.11 /hr
    10,840 hours
    4.92
  7. Christopher Brower

    Christopher Brower

    Senior Network Architect

    United States - Last active: 9 days ago - Tests: 2

    • Active Directory Implementation and Administration • Application and OS Automated Deployment • Database Administrator – Microsoft SQL Server 2000 and 2005 • Desktop Engineer – Automation of OS And Application Deployment • Help Desk Support • Group Policy and User Policy Administration • IIS Administration 5, 6, & 7 • Phone Engineer – Designed and Implemented 80 Phone VOIP PBX System • Physical and Logics Network Infrastructure Design • Physical Security Design and Implementation – IP Camera and IP Access Control • Network Security Design and Implementation • Messaging Administrator – Microsoft Exchange Server 2003 • Technical Documentation and Training • Vendor Relations & Purchasing • Virtualization Engineer – Microsoft Virtual Server and VMware ESX Server • Web Services Administrator • Wireless Network Infrastructure Design and Implementation • Adware / Malware / Spyware / Virus Removal • Architect Solutions for Customer’s Needs • Digital Achieving and Electronic Records Management • Disaster Recovery • Email Administration • Hardware Diagnostic and Repairs • Helpdesk Services • Network Diagnostics & Installations • Network Wiring • Server Installations and Provisioning • Server Maintenance • Software Installations • Software Patching and Upgrades • Phone System Installation and Support • Physical Network Repairs

    $66.67 /hr
    106 hours
    4.50
  8. RJ Ali

    RJ Ali

    J2EE/Spring/Hibernate/JSF/Mule ESB/Struts2/SAAS/AngularJS/REST/SOAP

    Pakistan - Last active: 1 day ago - Tests: 2 - Portfolio: 4

    I am having more than 8 years experience in developing web based enterprise solutions using technologies like Java, J2EE, Struts, JSF, Spring, Hibernate, Rich Faces, Prime Faces, GWT, Smart GWT. Further Android, JBPM, Performance Tuning, Query Optimization, Code Profiling, Memory Leaks and Team management. I have experience in SaaS applications and integration technologies like web services(jax-ws,jax-rs), JMS (Jboss Hornet Queue, Active MQ), Amazone AWS, Sales Force and Enterprise Service Bus (ESB) specially Mule ESB, Apache Camal, Service Mix and WS02 ESB. I have been working on web based solutions since 2005 so I have experienced the evolution of web technologies starting from web 1.0, then ajaxifying web apps and then single page Rich Internet applications using GWT, Smart GWT, Angular JS, Html5, Css3, D3, JQuery, Ext JS etc. With this much experience in web technologies I can even work as Front End Developer and I have already DONE few jobs as front end developer. What kind of work I prefer to work is the long term nature and hourly jobs. I prefer to establish long term reliable and trust worthy relations.

    $33.33 /hr
    2,624 hours
    4.90
  9. Stephen F.

    Stephen F.

    Proofreader, Editor, English Teacher, and Writer

    Serbia - Last active: 3 days ago - Portfolio: 13

    I am rated in the top 0.1 % of all freelancers in the writing and translation category for a reason. Precise, articulate, professional, and genuine work ethic. I am a native English speaker. Copy Editor/Proofreader, English (TESOL) teacher/online tuition (Facetime/Skype), writer and virtual assistant with a professional attitude. I am meticulous in my work with a very fine eye for detail. Very creative and hard working. I will always endeavor to meet agreed deadlines with efficiency.

    $17.00 /hr
    1,084 hours
    5.00
  10. Tymofii Cherkovskyi

    Tymofii Cherkovskyi

    Front-End Developer

    Ukraine - Last active: 1 day ago - Tests: 4 - Portfolio: 3

    Hi, nice to meet you. TOP 5% HTML5 / CSS3 / Javascript / jQuery tested Contractor on Elance. I'm constantly learning web design and development, following the best & latest web coding techniques. Fully dedicate myself in every project and never look at it as something which has to be done fast without the need to see the client fully satisfied. I am kind of perfectionist and it is very important for me everything to be as the client wants to.

    $15.00 /hr
    378 hours
    5.00