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: 12 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. 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
    131 hours
    4.91
  5. Jagjeet Singh

    Jagjeet Singh

    Labtech, Kaseya, ConnectWise Consultant

    India - Last active: 5 days ago - 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
  6. Abhijeet Singh Rathode

    Abhijeet Singh Rathode

    SharePoint 2013/2010/2007, Office 365, Asp.NET

    India - Last active: 1 day ago - Tests: 2 - Portfolio: 3

    I have been working in SharePoint development for more than 7 yrs. and I always wanted to work on variety of challenging SharePoint development and implementation projects. I am working as full time freelancer and ready to accept challenges. Look forward for good opportunities. I have been working as a SharePoint solution architect and have experience in designing end to end solution in SharePoint. In addition to applications in asp.net/C# , PHP websites in Wordpress.

    $20.00 /hr
    611 hours
    4.85
  7. Eddie J.

    Eddie J.

    Developer

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

    Hello, I'm an expert level dev who is proficient with PHP, Flash AS2/AS3, and JavaScript. I have fundamental web skills in HTML, CSS, and also newer technology like JQuery and HTML5. I have some experience with Python, Ruby on Rails, and Unity3D. I have strong knowledge in a number of internet technology related fields like Linux systems, networking, and application interfaces. Most of my formal education is related to business, so I have strong communication skills and knowledge of money systems. Check out my company website onefoldmedia.com for examples of my work. I also have a resume available on request.

    $32.00 /hr
    1,614 hours
    4.99
  8. Diana emil M.

    Diana emil M.

    Software Quality Team Leader - CMMI, Selenium, and JMeter

    Egypt - Last active: 2 days ago - Tests: 2

    I'm a Software Quality Team Leader who has worked in a multi-national software house that is CMMI Level 3 certified for 6 years. I'm aware of the CMMI process. I have an excellent experience in using Selenium in testing automation. I'm capable of the following: 1. Requirements documents testing and analysis. 2. Writing test cases with detailed steps for complex scenarios. 3. Testing portals, web, intranet, mobile and desktop applications in different verticals (e-Business, education, health, etc.) and have experience in games. 4. Logging bugs and managing bug tracking systems. 5. Retesting and Regression testing. 6. Automated testing using Selenium and Manual Testing. 7. Performance testing using Jmeter and Usability testing. 8. Managing testing teams. 9. Training and Supporting final users to use the software. 10. Communicating testing results clearly and efficiently.

    $15.00 /hr
    612 hours
    5.00
  9. Negoslav Pejovic

    Negoslav Pejovic

    Team Leader of Technical Support Engineer L1

    Serbia - Last active: 1 day ago - Tests: 2 - Portfolio: 3

    Quick and easy learning as well as pronounced talent to hand over knowledge, adaptability, creativity, burly logic. I’m analytical, devoted to job, undependable, sometimes perfectionist, but always loyal. Additionally I handle the pressure well, meeting the deadlines, being independent in solving tasks, etc. I’m very creative person, modest, and very good in impersonal work with colleges. Experienced at working in thing0 that demand very devoted approach, precision with very short terms and I come upon, in that, excellent. I want to prosper professionally and I’m up to strive in it, whereby overwork or any other activities which can be useful in your business.

    $11.11 /hr
    3,095 hours
    5.00
  10. Vladimir Mott

    Vladimir Mott

    Microsoft Exchange, Lync, & PowerShell Expert

    United States - Last active: 1 day ago - Tests: 3

    Ex-Microsoft Senior Consultant with 15 years industry experience designing, deploying, securing and managing Microsoft Exchange, Lync, and Active Directory. Deep experience with multi-site deployments, Exchange Database Availability Groups, Lync Enterprise Voice,and hybrid Microsoft Office 365 deployments with SSO. Complex migrations to/from Exchange, Lync, and Office 365 are my specialty. Very experienced with complex hybrid / coexistence scenarios that require directory synchronization, federation, and custom PowerShell scripting. Excellent communication and problem-solving skills. I am based in California, USA. Technical Skills: - Exchange 2003/2007/2010/2013 - Lync 2010/2013 with Enterprise Voice - PowerShell Scripting - Office 365 - Forefront Identity Manager (FIM) - Active Directory - Windows Server 2003/2008/2012 R2 - Hyper-V - ADSI, LDAP, DNS, SMTP, TCP/IP

    $75.00 /hr
    520 hours
    5.00