Top Upwork Freelancers

Clear all filters
  1. Celestine O.

    Celestine O.

    lagosMarket

    Nigeria

    I have 7 years in Telecommunication and IT industry with speciality in system development in Value Added Service (VAS) products. I have developed and launched various product with PHP, VXML, Java, .NET and C# . I have very good experience in monitoring and reporting in IT and Telecommunication environment with history of very successful projects.

    $50.00 /hr
    131 hours
    5.00
  2. Sleiman Saidi

    Sleiman Saidi

    Simple, Clear, Focused, on Results.

    Lebanon

    I've been working as a freelancer in web development, software development and SEO for more than 9 years. I've used to work through vWorker.com since 2005 and I have completed more than 400 projects there and I were ranked #36 out of more than 300,000 vWorkers before the site got acquired by freelancer.com during November 2012. I am ready to handle all your development, marketing, and design needs. Don't hesitate to get in touch and I'll be glad to serve you.

    $35.00 /hr
    126 hours
    5.00
  3. Geza Akocsi

    Geza Akocsi

    Windows system and network administration, web development

    Hungary - Tests: 4 - Portfolio: 1

    In the last 3 years I'm working as consultant, developer and system administrator in introduction of document management projects based on ELO system. (<a href="<a href="http://www.odesk.com/leaving_odesk.php?ref=http%3A%2F%2Fwww.elo.com"";;;; target="_blank">http://www.odesk.com/leaving_odesk.php?ref=http%3A%2F%2Fwww.elo.com"</a>;;;;; title="You are about to go to a URL outside odesk.com"><a href="http://www.odesk.com/leaving_odesk.php?ref=http%3A%2F%2Fwww.elo.com";;;; title="You are about to go to a URL outside odesk.com">http://www.elo.com</a></a>)I have 15 years of experience in system management in small business area. (Windows based servers and workstations, network planning and management.)In last five years I have designed and developed some websites from scratch, including areas of e-commerce and web-based business management.I have a lot of practice in remote management and it is my new tendency in my support field.

    $11.11 /hr
    17 hours
    4.81
  4. George Vavoulogiannis

    George Vavoulogiannis

    Software Developer / Analyst

    Greece - Portfolio: 9

    For more than 25 years, as a professional developer, i am building business applications for the Greek and foreign market. I have developed software for the most popular platforms (Dos, Windows, Internet/Intranets, IBM AS/400) and i have long time collaboration in application development with companies at leading position in information technology business such as IBM Hellas. Some of the skills i possess: * Excellent understanding of business application * Broad knowledge of technical solutions * Excellent analysis and problem solving skills * Can design and code complex applications using advanced technology * Can create optimization programs to resolve problems * Can design and build prototype applications and * I am results oriented

    $30.00 /hr
    643 hours
    5.00
  5. Alexander K.

    Alexander K.

    PHP developer specializing in Wordpress plugins

    Cyprus

    I have several years of experience in programming. It consists of 6 months of working extensively with Wordpress plugins, 1 year of working with PHP5 and PHP OOP, 2 years of working with C# / VB .NET. Additionally, I know HTML / CSS / Javascript. As a side skill, I am capable of writing bash scripts in Windows and Linux. I posses excellent communication skills in English (scored 8/9 in IELTS academic). In my previous job, I was a system administrator of a company with 50 staff that consisted of headquarters and several world wide branches. My tasks were ranging from deploying computer systems to maintaining company's websites (one of them was comapany's Wordpress blog). I have configured and installed Cisco hardware throughout entire organization (ASA, IOS, Aironet). Upon request, I am able to provide a reference letter as well as more details specifics of my previous job.

    $13.00 /hr
    222 hours
    5.00
  6. Marcel Popescu

    Marcel Popescu

    Senior .NET Developer

    Romania - Tests: 6 - Portfolio: 4

    I am a senior .NET programmer with over 20 years of professional experience, mainly in back-end C# applications using SQL databases - web services and Windows services. I am very familiar with SQL data modeling and normalization up to third normal form. One of my recent accomplishments was changing an error-prone, manual process that was taking three days each month into an automated, five-minute scheduled task using MS SQL Data Tools. Unit testing and test-driven design are very important to me - I wrote a book, TDD by Example, available on Amazon. I don't mind working on pre-existing code without tests but I generally insist on adding them to any code I change.

    $40.00 /hr
    426 hours
    5.00
  7. Jagjeet Singh

    Jagjeet Singh

    Labtech, Kaseya, ConnectWise Consultant

    India - Tests: 1

    Technically knowledgeable and service oriented IT professional experienced in providing solutions to customer and end-users with proven technical expertise is seeking for a rewarding, challenging and personal growth where I can best use my knowledge and experiences in implementing, managing and supporting the IT infrastructure and end-users. Specializing in designing, implementing and maintaining Enterprise IT platforms, TRT takes the stress, risk and complexity out of managing core IT systems. Maintain complete control over the environment we take accountability for keeping it running efficiently and securely.

    $22.22 /hr
    1,843 hours
    5.00
  8. Olga I.

    Olga I.

    Photographer

    United States - Tests: 1 - Portfolio: 5

    With over 5 years of photography experience for some of the most innovative cultural organizations and businesses in the US, I am here to bring you creative ideas to life. My photographs share an intimacy and a fine-art understanding of conveying emotion through sofisticated composition, subtle lighting and strong colors. I can and will deliver stunning images in a timely manner. Let's collaborate on your next project!

    $70.00 /hr
    13 hours
    4.96
  9. Roberto R.

    Roberto R.

    Team Leader (& Developer)

    Mexico - Tests: 2

    Leader of a small team of smart developers. Well experimented in: - BCP - Business Continuity Planning - Mission Critical - Business Application Integration (Legacy/Mobiles/Web) - SQL & Op.System standard of many vendors or providers - Magic Development Platform / uniPaaS / Xpa from +20 years - Magic Integration Platform / iBolt / Xpi from +5 years +25 years working in IT as Specialist Software Support InterNetworking Consultant

    $80.00 /hr
    20 hours
    5.00
  10. Iurii Polishchuk

    Iurii Polishchuk

    IT Expert: Oracle DBA, OCP, OCA, MCP, MCTS

    Ukraine - Tests: 2 - Portfolio: 1

    OCP, OCA, MCTS, MCP certified IT expert with more than 10 years of experience in a variety of directions: - Oracle Database administraion (Oracle DB 10i, 11g, 12c), RMAN, DataGuard (STANDBY), RAC, DataPump, Flashback, OLAP, Partitioning, Performance Tuning, SQL, PL/SQL. - operating systems installation, maintanace and administration (MS Windows NT,2000,2003,2008R2,2012, Linux, FreeBSD); - virtualization (Hyper-V, VMWare, Parallels, VirtualBox, Xen); - infrastructure (Active Directory, DNS, DHCP, VPN, Terminal Services, SCCM, Group Policies); - networking (TCP/IP, Forwarding, NAT, iptables, VPN); - Internet technologies and programming (Python, HTML, PHP, Java, C++); - scripting (Powershell, Python, BASH). My Microsoft certification: https://mcp.microsoft.com/authenticate/validatemcp.aspx Transcript ID: 1005555 Access Code: AccessGranted To check my Oracle certification please send me the message with Your email, then I'll publish credentials. Here is my elance account: https://www.elance.com/s/iurii-polishchuk/

    $44.44 /hr
    192 hours
    4.98