Top Upwork Freelancers

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  1. Andrey K.

    Andrey K. Agency Contractor

    Expert iOS Developer

    Russia - Last active: 2 days ago - Tests: 2 - Portfolio: 5

    More than 5 years experience in native iOS applications development using latest Apple technologies, great number of successfully completed projects including my own apps. Experience in big and complex projects for well known customers. Ability to work as a part of a big team or alone. Key knowledges: Software Architect, Design Patterns, iOS SDK, xCode, Team-Leading, Multithreaded Application Development, MVC. SWIFT: Largest experience and understanding of the modern Apple programming-language: closures, functions, optionals, structs, enums, control flow, pattern matching, data modelling, GCD, extensions Apple xCode 3-6: "Instruments" for testing: leaks, allocations, CoreData tool, Time profiler, Performance tool, Zombies, File Activity etc. C/OBJECTIVE-C: Strong Objective-C skills, modern style (GCD, ARC, blocks programming, object literals etc.). Apple’s code documentation: UI & AppStore guidelines, iOS 7 UI/UX guidelines. Memory Management, protocols, categories etc. COCOA/COCOA TOUCH FRAMEWORKS: UIKit, Foundation, CoreGraphics, CoreAnimation, CoreImage, CoreLocation, CoreMotion, AVFoundation, GameKit, MapKit, Social, CoreData, StoreKit, QuartzCore, Accounts, AudioToolbox, SDWebImage, AddressBookUI, CoreMedia, CoreVideo, MessageUI, CoreText, EventKit, SpriteKit, CloudKit and others. DATABASES: SQLite (mobile, powered by CoreData.framework), Data Modeling, Multithreaded DB management. I have the strong iOS development skills with more than 5 years experience and a large number of completed and published projects including my own products. I know how to create any custom iOS applications from the beginning till the AppStore release. KEY SKILLS: - ability to start and finish any project (have a lot of my own AppStore projects) - build easily supported, workable and stable project architecture - make UX the most user-friendly and unlocked with multithreading - pixel perfect Interface Building works - Data Modeling and DataBase management in multithreaded environment - ability to apply any kind of iOS animation  I love to produce a great products for people.

    Associated with: KickApps

    $44.44 /hr
    100 hours
    5.00
  2. Gaston Claret

    Gaston Claret Agency Contractor

    Unity3D Game Developer

    Argentina - Last active: 1 day ago - Tests: 4 - Portfolio: 15

    Hello, my name is Gaston Claret and I'm a 24 year old a software engineer from Buenos Aires, Argentina. I work on Unity to create games, my passion! I love a challenge, and I'm always eager to create quality work for my customers. In the past, I've worked for over 2 years as a C# / .NET developer, working for a big enterprise web application. I'm very passionate about my work, and always eager to learn new technologies. I have lived in Toronto, Canada for 3 years, so I am both fluent in English & Spanish. I have knowledge in the following: ✓ Game development & design ✓ Unity 3D & 2D ✓ NGUI ✓ Android / iOS / WP8 ✓ Facebook Social Integration ✓ IAP Integration ✓ Ad Integration (Admob, Heyzap, Leadbolt, Chartboost, etc) ✓ Multiplayer Games ✓ Game Center / Google Play Services Integration

    Associated with: Bigfoot

    $44.44 /hr
    83 hours
    5.00
  3. Pavel Gribov

    Pavel Gribov

    .net professional

    Russia - Last active: 11 days ago - Tests: 5 - Portfolio: 4

    Hi, my name is Pavel Gribov. I'm fullstack developer and I've experience in IT since 2003. I live in Saint-Petersburg, Russia (UTC+3). You can find more information about me on my web site: http://gribov.pro/business/english-version In my portfolio you can find a few of the programs that I've developed. I believe my strong points are my Creativeness and Punctuality. My #1 goal will always be to meet your needs and deadline. When working on a new project, I like to communicate with the client, so that I can have a clear understanding of his/her needs and vision of the project. I'm honest and reliable. Listed below are my experience and skills: Experience in formation of both server-side (asp.net (MVC), PHP) and client-side (JavaScript, ActionScript) applications since 2003. Programming languages and technologies: • C# including .net 4.5 (asp.net (mvc), WCF, LINQ, ado.net, .net remoting, data crawling and parsing, Windows.Forms and WPF applications, multithreading, security including SSL Certificates ); • ActionScript; • JavaScript (the language itself + frameworks jQuery and AngularJs + vanilla ajax and json); • PHP; • SQL Styles and marking languages: • CSS + preprocessors (less and stylus); • HTML 5; • Microsoft XAML; • XML; • XSLT. Frontend technologies: • npm; • gulp; • jade; • Bower; • less; • stylus; • yandex.Bem; • jQuery; • AngularJs; Version control systems: • Git; • MS Team Foundation Server; • SVN; • MS Subversion. IDE: • MS Visual Studio; • Eclipse; • JetBrains PhpStorm. Bug/Issue trackers: • Jira; • MS Team Foundation Server; • Bugtracker .net; • Redmine. Database: • MS SQL Server (beginning from 2000); • MySql (beginning with 3.23); • SQL Lite (from the 3rd version). Experience in working with SQL Server includes shaping of inquiries in order to optimize the narrow parts, security configuration on the level of columns, administration over maintains plans and backups, including testing of efficient base restore in case of supernumerary situations. Seven-year experience in formation of distributed applications (DB + servers with client API + clients (thin and thick) on the platform .net. Interaction between program components is realized with WCF (both REST and SOAP). Experience in developing a system that administers users’ personal accounts. Money is deposited through electronic payment systems, check cards or by invoicing a bill to a legal person. Then users spend deposited money on services, provided by the system. All financial operations are realized transactional, taking into account ACID requirements. In the process of development, the set of requirement according to PCI DSS standard was considered. Experience in forming a team from scratch and administering it during a seven-year period. There were seven people in the team, some of them were in the staff (programmers, helpdesk) and others - freelancers (designers, imposers). Experience in administering employees of «adjacent» profile – journalists, promoting the project. Successful experience in negotiating with purveyors and counteragents in order to strike deals on the most advantageous for the company conditions (reduction of work cost, acceleration of deliveries, and work without prepayment). While working, I reach the goals in the most optimal way, changing the technological platform if necessary (for example, inserting AngularJs in addition to jQuery) with essential refactoring. I aim at manual labor minimizing, introducing autogenerating samples, macro project and similar elements. I value the relationships with colleagues and create a comfortable and productive working atmosphere.

    $35.00 /hr
    0 hours
    5.00
  4. Alejandro Giraldo

    Alejandro Giraldo Agency Contractor

    CSS/jQuery/PHP/Joomla/Facebook/Wordpress/Drupal/Linux/CodeIgniter

    Colombia - Last active: 1 day ago - Tests: 1 - Portfolio: 8

    As a blogger and code lover I have tested and worked with a big and biggest CMS like wordpress, drpal , joomla , magento, and many others, taking the first one as part of my big portfolio and experiencie as u can corroborate with my experiencie. CSS/HTML/jQuery are part of my daily work and mixing this knowledge with wordpress and PHP, I am dispossed to create almost any challenge that client put to me and becoming it in a good product. Would be awesome to meet u and make a team to create very awesome things.

    Associated with: Permalink

    $44.44 /hr
    1,005 hours
    4.96
  5. Aleksey Zhuravlev

    Aleksey Zhuravlev

    Java/Android/Web Developer.

    Russia - Last active: 12/30/2014 - Tests: 3 - Portfolio: 4

    Over the last 3 years, I have developed on java a Web, standalone and mobile applications. The DB is used in my work: MySQL, Oracle, SQLite. The last 2 years I have developed for Android phones. Have a good skills for this platform. The last projects is based on the Android SDK. I am designing and developing application for this platform.

    $27.78 /hr
    134 hours
    5.00
  6. Alexander Kozlov

    Alexander Kozlov

    Top level professional Architect and SW engineer

    Russia - Last active: 3 months ago - Tests: 21 - Portfolio: 5

    Make things done! I'm a professional C/C++ developer with more than 12 years of experience. I have been working both for a companies from Fortune 500 list, and a small local companies. My core competency lies in the world of mobile applications, SaaS and PaaS, desktop software and games development. I love to do my work right and really enjoy being respected for the things i do.

    $55.56 /hr
    1,772 hours
    5.00
  7. Alex S.

    Alex S.

    Programmer / Developer

    Russia - Last active: 3 months ago - Tests: 9

    I'm awful at selling myself, it gave me a headache just to write this text. Someone called me a superstar, when I passed the screening process for a Python developer position, to this day I still laugh about it. No, I'm not bad by any means, I'm probably better than average, but I'm certainly not Guido or Armin Rigo. My skills and experiences, I have a wide range of those, from your typical web development to computer vision and genetic algorithms in context of game development, but most of it is on the jack of all trades level, definitely not an expert. I suppose my forte is Python backend development, but I've done frontend work as well (AngularJS). I'm currently trying to get into MEAN stack, since it seems to be popular nowadays. As for workflow and methodologies, I double check my commits and try to write the code as clean as possible, I follow TDD when possible, and prefer an uncluttered text editor and terminal tools as my IDE.

    $33.33 /hr
    881 hours
    4.93
  8. Sagun Joshi

    Sagun Joshi

    Database Consultant

    Nepal - Last active: 2 months ago - Tests: 7 - Portfolio: 4

    Over the last 11 years, I have developed no. of Software using Oracle, MS SQL, Access as a back-end and Visual Basic, Java as a front-end and Crystal Report and Data Report as a reporting tool. I also have excellent experience on Oracle Administration. Here are the details of my few recent Oracle experience: #. Currently working as a Oracle DBA Consultant. 1. D2Hawkeye Services (U.S. Based Company), currently involved as Oracle DBA training consultant. Provide Oracle DBA training and technical support(like performance issues, code samples, SQL tuning, Backup strategy, creating Server Managed Backup Scripts, etc) to the working staffs. 2. Midas Technology (Local Software Company, specialized in Hospital Management System and Colleges, Schools Software), currently involved as Oracle Consultant. Task performed so far from this organization: a. Oracle DBA training to the staffs. b. Oracle Database Server configuration at Manipal Hospital for peak performance. Configured Oracle Data Guard (Physical Stand-by Database). c. Successfully recovered the critical databases of Neuro Hospital, Whitehouse College and Teaching Hospital, Syakar Co. Ltd. (Largest Vehicle importer of the country), Himal Iron & Steel Industries due to Media Failure. (Note:, the databases at Whitehouse College and Himal Iron and Steel Industries were running in no- archive mode and the database was successfully recovered to the point of failure). d. Configuration and installation of Oracle RAC database at Dulikhel Hospital. Also configured for Oracle Data Gurad. e. Has done performance tuning in no. of critical databases. 3. Has done number of Oracle Database Server customization, configuration for small organizations. I also have a lots of training experience on MS SQL, Oracle, Java and Visual Basic since 2000. I have been providing training to the working professionals. Hear are the few organization, I have given training at: • Nepal Bank Ltd. • Nepal Telecom • D2Hawkeye Services (U.S. Based company) • Nepal Investment Bank • Nepal Agriculture Bank • Lumbini Bank • National College of Computer Studies • Manipal Medical College • Midas Software • Designco Software

    $33.33 /hr
    407 hours
    4.77
  9. Ilya Frolov

    Ilya Frolov

    System Administrator and Web Developer

    Russia - Last active: 5 months ago - Tests: 7 - Portfolio: 6

    I am java developer and linux system administrator. Have an interest in all kind of web based programming technology like python, ruby, perl. I have ability to create software from abstracts and fundamental algorithm design to deploying on production servers and zooming in business. I am interesting in java, open source, secure networking (SSL and so on), servers maintenance. Prefer full circle development - from idea to full production server support! I like to learn and follow the most modern technologies. I have 3+ year of shared web hosting design and service.

    $16.67 /hr
    77 hours
    5.00
  10. Pavel M.

    Pavel M.

    QA manager/Team Lead/Senior QA engineer

    Belarus - Last active: 3 months ago - Tests: 2 - Portfolio: 1

    5 years of experience in software testing and QA management. Familiar with almost all QA methodologies, bug-tracking tools, requirements-tracking tools. Project management environment and QA team can be provided on demand, as well as single QA member. As for now, i believe that QA services will help every company/customer archive their goals with high quality.

    $40.00 /hr
    363 hours
    5.00