Top Upwork Freelancers

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  1. Jan Bartnitsky

    Jan Bartnitsky

    Software engineer, algorithm developer.

    Belarus - Tests: 2 - Portfolio: 2

    I've been involved in many projects with use of C++, Python, assemblers, Bash and MATLAB. I have solved problems attached to computer modeling of physical effects, parallel calculations and development of computer vision and image processing algorithms. I see my professional strengths in ability to investigate any task and apply scientific approach independently on its form, scope or platform. According to my specialization I have studied fundamental mathematics theory, principles of semiconductor electronics and different types of programming. Furthermore, my understandings of computer architecture and Operational Systems working concepts was formed on a base of deep discrete mathematics and algorithmic programming knowledge base.

    $16.67 /hr
    15 hours
    5.00
  2. Alexander K.

    Alexander K.

    Web Developer (ASP.NET MVC/Web Api, AngularJS)

    Belarus - Tests: 3

    I am a smart, self-motivated software engineer. A quick learner. I have a bachelor's degree in computer scienceI am a smart, self-motivated software engineer. A quick learner. I have a bachelor's degree in computer I am a smart, self-motivated software engineer. A quick learner. I have a bachelor's degree in computer science

    $22.21 /hr
    28 hours
    5.00
  3. Misha Zhutov

    Misha Zhutov

    Microsoft MVP .NET Developer/Architect

    Ukraine - Tests: 1 - Portfolio: 5

    Experienced and accomplished Software Development professional with an extensive 16 year background in Microsoft technologies. Recipient of Microsoft's coveted Most Valuable Professional award - https://mvp.microsoft.com/en-us/mvp/Mykhaylo%20Zhutov-36854. I have a track record of developing a range of projects from simple enhancements to complete products; with well defined specification and loose requirements description; worked at startups, established companies as well as freelancer. Excellent English both written and spoken. Good communication skills and client culture. My specialty: Software Architecture and Design, Software Implementation and Process Customization, Software Development. My profile at Elance.com: http://www.elance.com/s/mishazh/ Some of the technologies, languages and tools I am proficient: - .NET Windows Forms, Web Forms, Web Services, WPF, Silverlight - C#, VB.NET, VB • ASP.NET, JavaScript, AJAX, jQuery, HTML, CSS - MS SQL Server, T-SQL, MS Access - Visual Studio VSIP Packages/add-ins development - XML, XSL, DOM - COM, COM+, ActiveX - Microsoft Team Foundation Server - FxCop, StyleCop - MsBuild, Nant, NDoc, NUnit - Microsoft Windows Installer - T4 Templates - Crystal Report

    $25.00 /hr
    318 hours
    5.00
  4. Caio A.

    Caio A.

    Django / AngularJS / Python / Twilio - Plivo Guru

    United States - Tests: 3 - Portfolio: 1

    I'm an experienced djangonaut with experience building and maintaining applications. I'm very good at taking business requirements or a general use case and translating it into code. Technical requirement specifications are so 1999! Here's how my ideal contract workflow goes: We work in an agile manner, where you create user stories, which describe what needs to be done. I'll ask clarifying questions, and then I'll implement the stories. We'll deploy early and often to a staging site where we can collaborate on any adjustments that need to be made. If you already have other django developers on your project, I'll plug in to the team and use whatever branching strategy the team is using (though if asked, my preference is gitflow.) If you're wanting to build a new app, then rest assured it will be built using best practices so that another django developer can join in and participate without a big tutorial. If you already have a project that follows some semblance of best practice (using a pip requirements file, virtualenvironemnts, etc) then rest assured we won't be spending alot of time on "ramp up". In fact, I don't charge for dev environment setup, checking the code out, getting any dependencies resolved, etc. The clock starts when the productive coding starts (and if that doesn't start on day one, we need to have a discussion about why!) Let's build some apps together!

    $94.00 /hr
    12 hours
    5.00
  5. Ivan Dunkiy

    Ivan Dunkiy

    Mobile developer

    Ukraine - 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
  6. Yuri M.

    Yuri M.

    Java/C++/DB Developer

    Ukraine - Tests: 11 - Portfolio: 6

    7+ years experience in various projects. In my development practice I've worked on both desktop and web-projects where I've used different libraries and frameworks. I have experience in such areas: * as Java developer: Swing, SwingX, EJB 3, Struts, Spring, GWT, Hibernate, JDBC, JSP, XStream, Jetty, JUnit * as DB developer I've worked with MySQL, Firebird, MS SQL Server, PostgreSQL, H2. * as C++ developer: boost library, ability to write cross-platform code, MFC, Qt * worked with applications for project designing: Rational Rose, Visual UML, StarUML, Microsoft Visio. Good understanding OOP and data-store concepts. Also I have some experience in following areas: Microsoft .NET, Ruby on Rails, PHP and Python.

    $30.00 /hr
    4,048 hours
    5.00
  7. Anthony Yandow

    Anthony Yandow

    Database Administrator (Access/Excel/VBA)

    United States

    I am a Senior at SPSU for Computer Science. I have worked for years as an improvement engineer and business analyst in the auto manufacturing industry. I have created several database applications and hundreds of Excel sheets. I am extremely proficient in VBA programming to coordinate MS applications in an office environment. I also have experience in JAVA, C++, and SQL. My most resent interests have been in developing Google forms and sheets that implement Google Scripting language similar to Java Script.

    $75.00 /hr
    82 hours
    5.00
  8. Vladimir Petrov

    Vladimir Petrov

    Developer

    Russia - Tests: 5 - Portfolio: 5

    I am an experienced Python and Golang developer. I have developed a lot of system-level software, network daemons and specialized libraries. Notable projects i have worked on: - Virtualization management infrastructure. The goal of this project was in providing a high-performance virtualized environments in a matter of seconds. That was achieved through integration with proper technologies (LXC and ZFS), careful implementation of clustered operation and management, solid RESTful API and tight integration with target product. - Cluster configuration and orchestration. That project is aimed to provide full-fledged production-like environments for developing and testing company's business-critical projects. Project consists of Opscode Chef setup coupled with management tool for creating, destroying and inspecting environments. - Continuous deployment tool for company projects. The tool enabled one-click deployment of projects to various types of environments: development, QA and production; with role-based task execution, proper database migrations, interactive reporting and rollback control. These three projects, complemented with business processes optimisation made real to deliver 20+ releases per day for 6 separate development teams.

    $30.00 /hr
    220 hours
    4.93
  9. Ibrahim Z.

    Ibrahim Z.

    Software Engineer, Android, RoR, C++ Expert

    Pakistan - Tests: 2 - Portfolio: 3

    I am a software Engineer with having 3+ years of programming experience in Mobile, Web and Desktop Application Development. Being enthusiastic developer, I have always tried to keep pace with the latest technologies introduced in the platform. Experience & Skills: - Android Application Development - Ruby On Rails - Social Media Integration (Facebook, Twitter, LinkedIn etc) - Ads Integration (Google Admob, Airpush, Adsense) - Google Map Service, Geo location, Direction Service, Location API, Places API - Google Analytics - Third party SDK Integration - SQLite, MsSQL Databases - Source code management for GitHub, BitBucket, Subversion PS: - Solid knowledge of Computer Science fundamentals, Data Structures, Algorithms and OOP concepts. - Excellent knowledge of effective Database design - Career minded hard worker with professional attitude and good communication skills. I believe in a stronger and long term professional business relationship. Feel free to contact, looking forward to hearing from you.

    $16.67 /hr
    26 hours
    5.00
  10. Andrey K.

    Andrey K.

    Programmer / Developer

    Kazakhstan - Portfolio: 13

    Skills and competences Objective-C, iOS development: 4 years of experience Programmer Building Java applications with Java 6/7 and MySQL, Oracle: 9+ years Experience with REST, JSON-RPC, XML, JSP, Core Data, SSL. Experience in a number of other languages: C++, HTML, SQL, C#, ... Experience with graphic designs' programs: Photoshop, Corel Draw, Maya. Database expertise: primarily in MySQL / Oracle - Design, Index design, Performance optimization. Project management experience in managing in-house and remote teams: 2+ years. Professional experience iOS developer & publisher From September 2010 to the present Building and publishing iOS applications, iOS consultancy. Developed and published 20+ own titles on the App Store: “Reach the Moon”, “Jigtris Puzzle”, “Terrtris”, “Antonyms”, “Don't touch my FISH”, “JustWords.”, “Math Brainiac” etc. Developed and published 10+ titles for other companies on the App Store “Vesti.kz”, “Tengrinews for iPhone”, “WorldClass Almaty”, “NinjaMyApp SDK”, “Heaven & Hell”, “Hippie Trip”, “Just Timer”, “Word Monster” etc. From October 2007 to November 2011 Senior Software Engineer / (Java, Oracle, JSON, Protobuf, SSL, Digital signature-GOST, Objective-C) Kazakhstan Stock Exchange Responsibilities: • New software design & development from the beginning and throughout the development life-cycle • Existing System maintenance, troubleshooting, optimization, and 3rd line support • Interfacing with Internal clients, Stock Exchanges, Data consumers and other project stakeholders Developed and published FIX Getaway for MarketData distribution, FIX Getaway for trading, trading terminal STrade, mobile trading terminal MTrade. http://www.kase.kz/en/page/show/regulations_market_data http://www.etrade.kz/products/fix http://www.etrade.kz/products/strade https://itunes.apple.com/app/mtrade/id615200515 From August 2004 to October 2007 Software Engineer / (Assembler, C, DDK, SoftICE, WinDBG, Java) BIPS /Escape Driver development for Windows / Linux platforms IPW PCMCIA, USB modems. https://sourceforge.net/projects/ipw-client-soft Education and training Kainar University 2000 – 2004 Specialties: Information System. Qualification: Specialist of information technology computing and networks Courses Oracle certified courses 1Z0-001-002 SQL and PL/SQL

    $22.22 /hr
    96 hours
    5.00