Top Upwork Freelancers

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  1. Dmitry Semyonov

    Dmitry Semyonov

    Proficient and initiative Java(J2EE), Android, C#(.Net)

    Kyrgyzstan - Last active: 07/11/2011 - Tests: 8 - Portfolio: 3

    For last 4 years have been working on some projects, mostly refferring to desktop applications, network tools and servers.Good knowledge of OOP, design patterns, software development methodologies.I have a good experience of working in team and usage of different tools for development: Continuous integration at Bamboo and CruiseControl, source control systems, JIRA, Trac and Bugzilla issue tracking systems, Apache Ant and bash scripting.I'm very interested in non trivial tasks according to network operations.

    $22.22 /hr
    80 hours
    5.00
  2. Adriana G.

    Adriana G.

    Professional sofware developer

    Romania - Last active: 4 months ago - Tests: 11 - Portfolio: 1

    I am a professional software developer with over 10 years of experience in analysing, designing and developing enterprise applications. The developer's moral responsibility should not end once the program is deployed and the project is formally accepted. My measurement of success takes into account not only how well explicit requirements are implemented, but the degree to which the architecture is designed to accommodate new features, allowing the project to grow. Skills and competencies: - Programming languages and technologies: C/C++, Java, SQL, Php, Java Spring, Spring Web Flow, Hibernate, JSP, Java Script (Ext JS, Secha Touch, JQuery, Ajax) – Markup Languages: HTML/DHTML, XML, XSL – Modeling languages: UML/OCL – Database management systems: PostgreSQL , PostGIS (stored procedures, triggers,database optimization, load balancing), MySql – Operating Systems: Linux, Windows, MacOS – Other: Latex, Metapost

    $27.78 /hr
    364 hours
    4.59
  3. Salman M.

    Salman M.

    iOS Developer/ Consultant

    Pakistan - Last active: 6 months ago - Tests: 2 - Portfolio: 5

    I am a veteran programmer with nearly 5 years of professional experience. I love solving complex problems and coding is my passion. I am looking for projects to keep my skills sharp and up to date. My experience is primarily in native, business and utility app development. A Lead Programmer for Fortune 500 clients and working on their major projects. I am fluent with objective-c, swift, android, Unity3d, PHP. I am also a cryptocurrency fanatic and have developed many pieces of software for Bitcoin, altcoins, and Nxt coin. Skilled ios developer who consistently streamlines the operations and constant client communication to meet project deadline and highest quality of the product. I have developed more than 150 apps and have many mobile apps that hit high ratings on App Store. Proficient in following areas. - iPhone/iPad, Graphics design if needed - Web services development using PHP/MYSQL - Back end development, for data management - Facebook API. - Youtube API. - Twitter API. - Chat applications - Messaging applications. - VOIP. - QR code & Bar Code implementation. - In-App Purchase Experience - Push Notification Experience - Game Center and OpenFeint Experience - Submitting Apps and Games to iTunes store and Marketing - JSON/XML/REST Web-Service - Core Data,Mac OS Kernel Program Experience - SQLite 3.0 Experience My vision is to go beyond Boundary and my Strength is to build beyond Excellence. I am a process oriented developer that not only helps you build your ideas but also to market them successfully. I will be providing you suggestions on what can make it better so that the idea gets its wings and then help you make it fly from imagination to a real world app. I am a partner to your apps and not mere developer. For the projects I work on, I provide 3 months warranty period upon release. 1) A bug in the code or blot in UI graphic design 2) A feature that was specified in original project specification but missed while development process 3) In case of a warranty issue, application will be fixed and re-uploaded to app store with no charge Thanks for your interest. Best regards.

    $20.00 /hr
    52 hours
    5.00
  4. Inayat Hussain

    Inayat Hussain

    Senior Software Developer, Architect

    Pakistan - Last active: 5 months ago - Tests: 3 - Portfolio: 2

    I am a professional software developer. Over the last 4 years, I have been involved in developing Desktop and Web applications using Microsoft technologies. I have been working as an architect as well. I have strong skills of .Net, C#, ASP.Net MVC, Jquery, Ajax, WPF, XAML, MVVM, Infragistics UI Tools, PRISM and Sql Server etc. I am a good desktop UI Designer as well. Furthermore I have good analytical skills. I am a hard working and an honest person. I strive to learn new technologies and keep myself up to date. Currently I am working as a Senior Software Engineer in a local software house. I have a little experience of Interactive Brokers and TWS as well. I am a little familiar with Bitbucket, git and tortoisehg. I have strong skills of *.Net Framework * C# * ASP.Net MVC, * Jquery, * Ajax * WPF * MVVM * PRISM * Design Patterns * Infragistics UI tools * OOP * Data structures * Strong Analysis * SQL Server * NHibernate

    $11.11 /hr
    205 hours
    4.84
  5. Mikhail Medvedev

    Mikhail Medvedev

    Web Developer - Python, Javascript, Java

    Russia - Last active: 04/28/2014 - Tests: 3 - Portfolio: 2

    I'm experienced back-end and front-end web developer. Interested in complex web projects. Specializations: Python (Django, Flask/Werkzeug, Google App Engine), MongoDB, Redis, Mysql, Postgresql for back-end. Javascript, HTML5, CSS3 for front-end development. Teamwork - Git, Mercurial, ticket systems. Integrating with third-party services. High-load web applications. Data mining: numpy, scipy, pandas, recommendation engines. "Code complete" is one of my favorite books and I have experience in writing unit-tests and clean object-oriented code. I'm result-oriented, highly motivated programmer who is passionate about quality of code and modern solutions.

    $25.56 /hr
    1,043 hours
    4.98
  6. 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
  7. Ivan Dunkiy

    Ivan Dunkiy

    Mobile developer

    Ukraine - Last active: 6 months ago - Tests: 3 - Portfolio: 1

    I'm end-to-end mobile developer. Made and released 7 projects both for Android and iOS. Used to work with technologies such as: REST, ORM, Push Notifications, SQLite, Google Maps, GSON, PayPal and others. Custom Layouts and Views creation. Used multithreading, background services, gestures listeners. Deliver your project from the start with specifications, requirements and design developing to the end with making support and analysis.

    $27.78 /hr
    22 hours
    5.00
  8. John B.

    John B.

    Expert LAMP admin, focus on Python and Flask

    United States - Last active: 7 months ago - Tests: 3 - Portfolio: 2

    Stanford grad w/ Masters of Information Science (UIUC) and 9+ years building whiz-bang websites, analyzing the heck out of some data, fixing what's broken, and making things that don't break in the first place. Talents: Python (esp. Flask, Django, and SciPy/NumPy), front-end stack [(X|HTML|5), CSS3, javascript (jQuery, backbone, etc.)]; server setup and administration; redis, SQL, mongo; solid understanding of what a user looks for when they look for information, and how to get it to them. Robust support for data management throughout its lifecycle of interest. I can also churn out written content pretty fast, if that's something you need.

    $45.00 /hr
    174 hours
    4.98
  9. Artem Fedorov

    Artem Fedorov

    Senior Full-Stack Developer - Ruby on Rails

    Russia - Last active: 08/27/2014 - Tests: 3 - Portfolio: 4

    With experience in programming for over 14 years, I've been doing Ruby & Ruby on Rails web development for the last 4+ years. I love concentrating on the end result and final polish - that's what user will see and interact with. As a result of this thoroughness and attention to detail, my open-source history viewing plugin for Miranda IM (http://addons.miranda-im.org/details.php?id=2995) became Miranda's de-facto standard. In addition to ruby, I know and use the following frameworks/technologies: CSS, AJAX, HAML, SLIM, SASS, SQL (MS SQL, SQLite, MySQL, PostgreSQL), NoSQL (MongoDB). My main expertise is Ruby (and Rails) - I've got 2nd place in oDesk Coding Challenge among Ruby developers. Also, I'm in the top 10% in Ruby and Ruby on Rails tests on oDesk. My projects do deployment, server provisioning and production error reporting automatically. I use Capistrano to deploy projects, Ansible for server provisioning and New Relic with Airbrake or Rollbar to monitor app in production. I can read other languages, like php, java, perl, python, c/c++. https://github.com/artemf/

    Groups: Coding Champs, Upwork Verified Developers

    $80.00 /hr
    117 hours
    5.00
  10. Bhupinder S.

    Bhupinder S.

    Good Android application developer

    India - Last active: 5 months ago - Tests: 2 - Portfolio: 5

    I have 2 year experience as an android application developer in an organization. I can utilize my skills to achieve the goals of any organization.I have skills to handle the challenging projects and provide the quality work. I have strong knowledge of JAVA, JAVA SCRIPT, C, C++,Objective c programming languages.I also have experience with IPHONE application development and managing database using MYSQL and SQLITE.

    $7.78 /hr
    10 hours
    5.00