Top Upwork Freelancers

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  1. Vitaly Soltysyak

    Vitaly Soltysyak

    MQL/Forex API Developer, MetaQuotes support, SQL Developer, RDB design

    Russia - Last active: 14 days ago - Tests: 5 - Portfolio: 3

    Primary skills: EA, indicators or scripts, any logic, any complexity. Adaptation, modification and optimization. MQL4 and MQL5. Forex Connect API development. Support and configuration of the MetaQuotes software (trading servers, backup servers, data centers, reporting service, bridges, feeds, etc). Developing of plugins for MetaQuotes Trading Servers. MT4 Server API, MT4 Manager API. ANSI SQL query programming; DB enterprise architecture modeling; DB structure and data modeling; T-SQL programming; SQL queries/storeds and DB model optimization.

    $33.33 /hr
    18 hours
    4.42
  2. Pasqualino Ferrentino

    Pasqualino Ferrentino

    Software Architect

    Italy - Last active: 9 hours ago - Tests: 17 - Portfolio: 1

    I am a computer scientist whose main skills are in the field of data analysis, pattern recognition, statistical software, machine learning and large scale system design and integration. I have developed systems using Neural Networks, Markov chains, Support Vector Machines in various applications: OCR, image processing, data analysis, text indexing and retrieval. I am also proficient in 3D image visualization using common off the shelf libraries and methodologies, either low or high level, like OpenGL, DirectX, VTK, Java3D. I understand and use common ray tracing programs. I understand image processing topics like segmentation, thresholding, classification. I have worked in the past in a 3d Face recognition European project. I know the OpenCV library quite well. In the field of "general programming" I have a good understanding of Databases, multi threaded applications, sockets, pipes, encryption (symmetric and asymmetric), compiler design, operating systems, low level data structure in memory and on disk, data integrity. I consider myself an expert in data structures and algorithms: trees, queues, lists, b-trees, hash tables; I use standard libraries like STL, Boost, Java generics. I have a good knowledge of SQL and data normalization however I have also used custom No-SQL databases like Datadraw, MapDB, Tokyo Cabinet, Zope. I know all the basic algorithms and templates used in every day coding; regarding data integrity and security. Compression (lossy and lossless), symmetric and asymmetric encryption, public certificates, I have worked with OpenSSL programming, encrypted web services, packet sniffers. I am proficient in all the common every day languages with an emphasis on C++ and Perl. But I can use: Java, Python, Visual Basic, C#, PLSQL, Delphi. I know all the Object Oriented Programming concepts and design patterns and I use them if the need arises, but I am also able to write object-free programs in C or functional languages (like Haskell or Scheme). I know modern version control systems like git and mercurial, even if I can use also older ones like Subversion or CVS. I know Windows programming and API quite well. I have used WPF and WCF to create desktop applications in Windows and web services. I have used Linux and Gui toolkits like Qt which are platform independent. I know XML, XSL, I have used several parsers like the MsXML or Xpath. I know how to validate a XML with a schema. I have worked with a team that handled thousands of XML documents relating to air crashes in a SQL server database. I am able to talk and write in English with fluency. If anything is not listed here either I have forgotten to list it or I can probably learn it quite fast, so don't hesitate in asking!

    $24.41 /hr
    7,088 hours
    4.97
  3. Biju J.

    Biju J.

    Web applications,Access & Excel VBA/Macro developer

    India - Last active: 1 day ago - Tests: 4 - Portfolio: 7

    Seeking challenging assignments for software development (windows and web), VBA Programming, auto processing / manipulation of excel and word documents. Technically sophisticated professional, offering 16+ years of insightful experience in Computer Programming, Software Training and Troubleshooting in India and abroad. During my 16 years of work experience, I have developed many software applications using the technologies Java / JSP / HTML / JavaScript / ajax, C#, Visual Basic, VB.Net, Visual Foxpro, Excel VBA, Word VBA, MS SQL Server, Sybase and MS Access. Example of work done : Work Order Tracking System, Call Desk Ticket Scheduling System,Payroll system, Water Connection & Billing System, Time Sheet & Cost Tracking System, Estimation System, Mail Server System, IT Help Desk & Tour Management System etc. I also have very good experience in Microsoft Office Package Excel,Word and PowerPoint. Expert in making forms in MS Excel and Word with validation, functions, macros and VBA application. Example of work done in excel : Developed function using excel macro to convert number to word (spell number). Developed excel form with look up functions, validation to verify the invoice of contractor. Developed a MS Word VBA application for extracting content from another word file and insert data in a new document based on the selection criteria in a cascading list box. Award: I received award from Saudi Arabian Oil Company for the automation of Work Order Processing with paperless workflow.

    $22.22 /hr
    1,209 hours
    4.98
  4. Faisal Iqbal

    Faisal Iqbal

    Smart Web Worker

    Pakistan - Last active: 6 days ago - Portfolio: 4

    I'm here on Elance for full-time. I have 10 years SOLID experience in PHP, MYSQL, AJAX, jQuery, Wordpress, Bootstrap, API integration, HTML5, phpBB, osCommerce, Joomla, and other technologies. Right now i am willing to join as part time or contract based jobs and that can be further to full time and permanent based on company offer and understandings.

    $15.00 /hr
    1,549 hours
    4.91
  5. Eugene Dementiev

    Eugene Dementiev

    *nix geek

    Russia - Last active: 8 days ago - Tests: 7 - Portfolio: 1

    Over the last 10 years, I was working with *nix-like OSes. I started from FreeBSD and OpenBSD, and now I use mostly Gentoo Linux. I have developed a big bunch of parsers/small scripts, configured a lot of different software. I have experience with a few different programming languages, mostly Python and bash. I've tried myself in web development (using flask, mongodb, a little of jQuery, etc). At my main job I work as a DevOps/Systems administrator. I use Ansible, ElasticSearch, Gitlab with Gitlab CI, pacemaker, docker, and many more cool things! I also mentor junior developers. Right now I need some extra money, so I'd love to do the following: 1) Ongoing sysadmin stuff. RAID, gmirror, software installation, compilation 2) Automation tasks with Ansible 3) Work with docker containers, write dockerfiles. 4) Do some Python coding to glue things together I can dedicate a few hours every day with more hours on holidays. I usually work between 7-10am CST (8-11am EST).

    $22.22 /hr
    119 hours
    4.96
  6. Yuliyan Tsvetkov

    Yuliyan Tsvetkov

    Advanced linux administrator and system automator

    Bulgaria - Last active: 15 days ago - Tests: 6 - Portfolio: 1

    In the world of 24/7 available services, giving to the customer best stable and optimized Linux environment is the primary role of every System Administrator, my role too. I've 5 years of experience in automation, installation and maintenance of Linux servers based on RHEL, CentOS, Fedora, Debian and Slackware distributions. Also I'm managing a lot of live servers for the biggest Telcos in the Middle east and Africa using new technologies, and also proven old ones.

    $22.22 /hr
    214 hours
    4.68
  7. Elvir S.

    Elvir S.

    PHP/MySQL/NET Developer, Web Programming And Consulting

    Bosnia and Herzegovina - Last active: 1 month ago - Tests: 5 - Portfolio: 3

    Over the last 25 years, I have developed a wide range of software using C, C++, Visual Basic on Windows and Unix platforms, targeting financial, engineering and scientific area. Today, I am focused on web applications using HTML, JavaScript, PHP, and MySQL including sites for small businesses, modification of running systems (CRM, CMS), maintenance of existing installations and fixing various issues like code bugs and server configuration.. My core competency lies in complete end-end management project task and ability to work in other area, if necessary. On other side, I am focused on Microsft NET technology, where I develop desktop and web applications based on ASP.NET, targeted to local companies and covering accounting, finance, human resources and other.

    $17.00 /hr
    26 hours
    4.95
  8. Ralph Swartwood

    Ralph Swartwood

    Certified WebSphere Administrator

    United States - Last active: 6 days ago - Tests: 1

    I have 10 years experience working with WebSphere Application Server version 3, 4, 5, 6 and 7 on AIX, Solaris, HP/UX, Linux, zLinux and Windows. I am certified in versions 5, 6 and 7. I am looking for short and long term engagements including installations, resolution of a specific problem and ongoing support. I also have experience working with WebSphere Portal Server, Process Server, IBM HTTP Server and Apache. I developed JACL and Jython scripts to automate application deployments and to make configuration changes. I am very familiar with Java programming of servlets, JSP, SQL and JMS. I developed a Nagios plugin that monitored JVM availability and Performance Monitoring Infrastructure (PMI) metrics. I can analyze thread dumps for JVM hang problems and heap dumps for OutOfMemory issues. I also have experience with DirectConnect and training in DataPower appliance administration.

    Groups: TrueBLUE

    $50.00 /hr
    44 hours
    4.60
  9. Geza Akocsi

    Geza Akocsi

    Windows system and network administration, web development

    Hungary - Last active: 6 days ago - 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
  10. Laxmikant T.

    Laxmikant T.

    Expert Game Tester (Windows/Linux/iOS/Android)

    India - Last active: 2 days ago - Portfolio: 1

    Professionally active into ITES and Gaming Industry since year 1999. Member of Gaming & Animation Committee of MCCIA, India. High premium on providing exclusive gaming services. Also worked in Technical Support services for online games. Particularly interested in QA Testing projects of related to Games and Interactive Applications on all the platforms (especially PC, MAC, Linux, iOS and Android). Good experience in Game QC & QA on most platforms, Focus Groups and MMOG Testing. Currently involved in QA Testing of VR technologies, Android consoles, testing of new gaming technologies and game controllers. With help of my team, I have tested over 600 games, interactive applications and portals by end of year 2014. Please check my LinkedIn profile on www.linkedin.com/in/lbthipse to know more about me and recommendations received by me.

    $25.00 /hr
    111 hours
    5.00