Top Upwork Freelancers

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  1. Saša Kostadinović

    Saša Kostadinović

    IT technic

    Serbia - Last active: 1 month ago - Tests: 4

    Working for the large scale company. On the development supporting softwares for main frame program for more than ten years I build up a great experience in creating custom databases in MS Access. Area of expertise is MS Access databases and VBA programming. Reliable, self-motivated, customer oriented, creative and efficient. Working extensively with Excel and Access and developing in VBA among other platforms. Developing software for private and public sectors

    $11.11 /hr
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  2. Yurii R.

    Yurii R.

    OS X/iOS Developer

    Ukraine - Last active: 8 days ago - Tests: 3 - Portfolio: 4

    I’m very young and despite of this I’m very strong developer. I have insane math skills and I love challenging tasks. My main goals: - Reliability - Simplicity - Quality Technologies I love to work with: - CoreAudio: 1. Processing raw audio samples to add effects on sound. 2. Converting audio data from one format to another. 3. Playing audio with lowest latency using AudioUnits. 4. Creating audio chains to convert/add effects/mix incoming sound. 5. Capturing from device microphone, run through processing chain and playback modified sound. 6. Using higher level components to produce/capture sound (AudioQueue) 7. Creating audio players with own logic. 8. Working with interruptions in real-time (such as phone call) and resuming audio after call ends. 9. Remote sound control 'play/pause/next/previous track' that can be achieved by using for example apple headphones. 10. Creating audio files directly and filling them with correct audio data. - CoreGraphics (Drawing lines, shapes, texts, images) - CoreAnimation (Creating mind-blowing animations) Technologies in which I’m best: - CoreBluetooth - CoreLocation - Accelerate - UIKit - Foundation - AVFoundation - GCD - ObjC Runtime - Blocks I also have experience working with 3rd party frameworks such as: - Facebook - Parse - AFNetworking - MagicalRecord - cocos2d - ViewDeck

    $22.22 /hr
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  3. Artem Ushakov

    Artem Ushakov

    Android programmer

    Russia - Last active: 1 day ago - Tests: 4

    Hello. I have experience in developing with Java for Android and C++ with Qt framework. I have worked with different android features: location API, camera api, asynctask, network, services etc. I also worked with RESTFul services, JSON/XML and SQLite database. In C++/Qt I have worked with multithreading, network, GUI and multimedia module. I have experience with TCP/IP, video streaming, SQL database(MySQL, Oracle database, SQLite). I have experience with GStreamer, libVLC and OpenCV library. I work at Android Studio, Eclipse, QtCreator and GIT.

    $8.89 /hr
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  4. Oliver Kiessler

    Oliver Kiessler

    iOS, Android and Rails Software Development

    Germany - Last active: 1 month ago - Tests: 2 - Portfolio: 4

    I'm a Freelance Consultant and Software Developer from Cologne, Germany. My focus is on Ruby on Rails, iOS & Android App Development and agile Software Development (Scrum). Please see my website for all my current projects: http://inceedo.com/en/rails_java_app_projects.html As a software developer/architect and IT consultant I take on projects on a freelance basis. The projects are mostly in the field of webapplications (dynamic websites, web 2.0, portals, communities & social networks) and applications for mobile handsets (iOS/iPhone & Android Apps). I have extensive knowledge in backend development in both Java and Ruby and I've build numerous webservice-based webapplications (XML/JSON) and complex distributed applications. As far as app development goes, I know iOS and Android just as well and I've used many frameworks like Core Data, Core Location, AFNetworking and so on. I'm also specialized in cloud integration and push messaging.

    $90.00 /hr
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  5. Sergey P.

    Sergey P.

    .Net Developer | C# | WPF| SQL

    Russia - Last active: 1 month ago - Tests: 4 - Portfolio: 1

    Greetings! Since you are reading this, you might be considering hiring me, so let me tell you a little about myself to ease your choice. First thing you need to know is that I have a strong background in math and engineering fields and have received Master of Science diploma. Secondly, I tend to solve objectives in the best way possible, meanwhile considering deadlines and other demands. Its a pleasure for me to be high valued as a specialist. Thirdly, I have been developing software since I was a child and this is my passion, not just the way to pay the bills. Now a few words about technologies: I have 4-year experience in .Net and vast knowledge of many technologies. My favorite tools remain to be C#, WPF and SQL. Other technologies, I'm familiar with are: WinForms, Silverlight, JavaScript, HTML, CSS, ASP.Net MVC, DevExpess, Telerik, Entity Framework. Thank you for your time. I'm looking forward to hearing from you.

    $15.56 /hr
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  6. Javier Frias

    Javier Frias

    IT- Java-Programmer

    Argentina - Last active: 26 days ago - Tests: 3 - Portfolio: 2

    Hello my name is Javier I live in Argentina, and since 2010 I've been working with java getting experience in real cutting edge programmers team. I love working in a team, collaborating and contributing with the team success and achivement of goals. In each work experience I had the oportunity to work and learn different kind of technologies, that increased my experience in differents industries such as Insurance,Tourism, Metallurgical, and now Retail. I love learning new technologies and growing as a professional java programmer. I am able to be adapted and be opened to new proyects and challenges. Best Ragards Javier Frias

    $28.00 /hr
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  7. Fernando Távora

    Fernando Távora

    Software Development Engineer In Test

    Argentina - Last active: 1 month ago - Tests: 2 - Portfolio: 1

    I have more than 5 years experience in software/web programming and development. I'm a ISTQB Foundation Level Certified Tester and have strong skills of automation programming for functional and integration testing, developing automation frameworks with Maven, Java, TestNG, Selenium WebDriver and Jenkins. I have worked as a freelance developing web sites for small business companies and as a full-time employee in big corporations such as Thomson Reuters. I have strong experience working on Scrum teams.

    $28.00 /hr
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  8. Alejandro Oviedo García

    Alejandro Oviedo García

    Software Engineer

    Argentina - Last active: 22 days ago - Tests: 3 - Portfolio: 1

    I'm a person who seeks challenges, solving problems it’s what I've been taught. I’m not satisfied with ‘I think it won't work’. Some people might think that learning is a staged process; high school, college, etc. From where I see it, learning can be a philosophy of life: you can choose to never stop learning. Do you work on problems that you think I might find interesting? Please contact me.

    $24.44 /hr
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  9. Carlos eduardo J.

    Carlos eduardo J.

    iOS/WP8/Android/PHP/Codeigniter/Jquery/AngulaJS developer

    Colombia - Last active: 3 days ago - Tests: 4 - Portfolio: 1

    I'm software engineer/developer. I have around 5 years of experience in the area, managing IT projects and developing a wide range and variety of applications, including: web portals, information systems and other custom solutions as scripts & templates. In this way I have worked with a variety of technologies & platforms at the back, middle and front end such as: PHP, Codeigniter Framework, CSS, HTML, JavaScript, JQuery, Ajax, Flash + Action Script ,C#, XAML,AngularJS Oracle, MySQL, Postgres SQL, SQL Server. Mobile app like WP8, IOS Game Framework Like Unity3D I am seeking to build opportunities for you and your business. Thanks & regards

    $14.44 /hr
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  10. Gustavo Wolfmann

    Gustavo Wolfmann

    Software developer, parallel programming specialist

    Argentina - Last active: 1 month ago - Tests: 3 - Portfolio: 2

    Senior in design and developing of software. Skills: *Parallel programmer: 8 years in parallel programming research and programming. Expertise in OpenMP, MPI and CUDA. Phd candidate on optimizing parallel software. *Master in Software Engineering. Object oriented programming and design. Functional programming and relational DB based systems. *Senior programmer in smalltalk, perl, c/c++, fortran, haskell. Same expertise in java, python, pascal. *More than 20 years developing and teaching programming.

    $50.00 /hr
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