Top Upwork Freelancers

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  1. Ahmed Hosny

    Ahmed Hosny Agency Contractor

    Senior Software Developer

    Egypt - Last active: 11/21/2014 - Tests: 2 - Portfolio: 2

    Developing Web, Desktop and Mobile Applications that meets the Standards. Hope to create new level of Standards by depending more on AI in my Applications, Also focusing on Security and Usability.

    Associated with: TrustWorthyApp, SpanLayer

    $25.00 /hr
    25 hours
    4.95
  2. Natalya Potockaya

    .Net C# Developer

    Russia - Last active: 2 days ago

    Experienced and skilled software developer/architect

    $22.22 /hr
    7,005 hours
    5.00
  3. Alexandr Timoshenko

    Alexandr Timoshenko

    Android developer

    Ukraine - Last active: 2 months ago - Tests: 4 - Portfolio: 3

    Are you looking for a great Android App developed with high quality and within a tight deadline? You came to the right place. Over the last 4 years i have developed various apps for Android including but not limited to social networks, client apps for various web-based solutions, custom firmwares, and complex solutions involving working with Bluetooth/USB hardware connected to android devices. I am always trying to find new ways to improve my skill in programming/architecture without impacting on working performance and things to make my clients happy. In each project I try to use best practices to make the code run fast and let the project become bigger without the additional effort of rewriting parts of the application in the future. My projects have used numerous of technologies: - Connection to the server and receipt of JSON files and .png and .jpeg images. - Parse/Upload large data from/to server. - Working with camera, streaming video data, applying various effects to real-time video. - Bluetooth communications - Connecting android devices to USB accessories - Optimizing loading big images into device memory. - Different layouts to show complex content to user - Asynchronous work everywhere required to load data dynamically and lets UI run smoothly. - Google Maps to display user location and various location based data. - Animations - Push notifications - Ads I have experience building and using various native libraries in android projects: ffmpeg, libcurl,openssl, libjpg, libpng, SDL, OpenCV. Dont hesitate to contact me any time. Let's make this world easier with quality applications

    $30.00 /hr
    50 hours
    4.96
  4. Mariusz Plucinski

    Mariusz Plucinski

    C++/Java/Python programmer

    Poland - Last active: 10/25/2014 - Tests: 7

    I am enthusiast programmer, focused on innovation. Being interested in wide area of IT-related jobs, including development of desktop applications, mobile applications, distributed systems and embedded systems. I have 4 years of experience in C/C++ programming. 3 years of experience in Python programming, 2 year experience in JavaSE and Android programming. Good knowledge of Linux, Android and OS X operating systems. Knowledge of many databases (MySQL, SQLite, PostgreSQL, Redis), various network protocols (HTTP, OpenID, OAuth, KNX, DNS, SAML), control version systems (Git, Subversion, Mercurial). I consider testing (both automatic and manual) as very important part of software development.

    $20.00 /hr
    868 hours
    4.88
  5. Nick R

    Ruby / Web Scraping

    Russia - Last active: 21 hours ago - Tests: 1 - Portfolio: 3

    1. Webscraping/parsing/data extraction I've scraped thousands of sites in my life. Prefer Ruby (Mechanize, Nokogiri, etc). 2. Web automation in Ruby i can help if you want to interact with your old legacy ASP webapp, if you want to find products in shops and complete purchases automatically, etc

    $23.33 /hr
    2,155 hours
    4.99
  6. Natko Kalisnik

    Senior C++ developer

    Croatia - Last active: 3 days ago - Portfolio: 1

    Designed and developed many projects. Mostly related to audio/video. Radio and TV broadcasting.

    $66.67 /hr
    164 hours
    5.00