Twitter Freelancers

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  1. Tymofii Cherkovskyi

    Tymofii Cherkovskyi

    Front-End Developer

    Ukraine - Last active: 14 hours ago - Tests: 4 - Portfolio: 3

    Hi, nice to meet you. TOP 5% HTML5 / CSS3 / Javascript / jQuery tested Contractor on Elance. I'm constantly learning web design and development, following the best & latest web coding techniques. Fully dedicate myself in every project and never look at it as something which has to be done fast without the need to see the client fully satisfied. I am kind of perfectionist and it is very important for me everything to be as the client wants to.

    $15.00 /hr
    362 hours
    5.00
  2. Mario Stipetic

    Mario Stipetic

    UI and UX designer

    Croatia - Last active: 1 day ago - Tests: 2 - Portfolio: 6

    Strong passion for great quality UI (user interface) and UX (user experience) design. I am specialized in designing MVP (minimum viable product) for iOS iPhone mobile apps, Android mobile apps and web apps. Please contact me for latest works in PDF format that are not listed in my Upwork portfolio. I have 12 years of professional experience in web and mobile design. I obtained masters degree in design of visual communication at Arts Academy in Split, Croatia. Some of design recognition include nomination for "Website of the day" award at awwwards.com – worlds most recognized web design award website. http://www.awwwards.com/best-websites/peaks-digital-agency-template/ Nomination for cssdesignawards.com: http://www.cssdesignawards.com/sites/peaks-digital-agency-template/26739/

    $27.00 /hr
    105 hours
    5.00
  3. Dusan Lazarevic

    Dusan Lazarevic

    iOS mobile iPhone apps/games (iphone app & game programming)

    Serbia - Last active: 2 days ago - Tests: 1 - Portfolio: 41

    Mobile IT & Programming (iOS App & Game Developer) > Highly experienced iOS mobile programmer for iPhone & iPad. Made more than 50 iphone apps/games already on app store. Especially skilled in cocos2d framework. Fast, precise and top quality results for iphone mobile apps and games

    $38.00 /hr
    59 hours
    4.98
  4. Sergey Rogachov

    Sergey Rogachov

    Software Development,optimization, advanced problems solving

    Ukraine - Last active: 5 days ago - Tests: 10 - Portfolio: 2

    Why you should hire me , instead of cheaper alternatives? Because you get what you pay for . Who am i ? I am a software developer, team lead and project manager with more then 19 years in industry. My strong sides are: problem solving, optimization, reverse-engineering skills, focus on client needs, attention to quality and economics of the decisions, deep understanding of computer systems and software architecture. I worked on various projects for different industries like marine transportation, web application for computer-aided learning, mobile applications; security: iClass, rfid, reverse-engineering.

    $44.44 /hr
    512 hours
    5.00
  5. Evgen Litvinenko

    Evgen Litvinenko

    iOS developer

    Ukraine - Last active: 14 hours ago - Tests: 2 - Portfolio: 13

    I'm iOS developer. I have 5 years practical experience in implementation of apps for iPhone, iPad and iPod on iOS operation system. I have personally implemented more than 20 apps and also participated in many successful joint projects. I particularly like implementing interesting and unusual applications with absolutely non-standard interfaces and cool content. Language: C/C++, Objective-C, Swift. Areas of Expertise - Social networking with GPS, Maps, Chat, Event, Comment, Media Sharing - Photo/Video Editing & Sharing with Social - Сlient-server communication using RESTful, JSON, XML, RSS, Caching - Github, Bitbucket and JIRA. - Google Map Service, Apple Map - Audio players, AudioToolbox, AVFoundation, CoreAudio and MediaToolbox Frameworks - Databases: CoreData, SQLite - File System, SystemConfiguration, MobileCoreServices and Security Frameworks - Complex Animations, CoreGraphics and QuartzCore Frameworks - Data synchronization, iCloud - KeyChain - Working with images, image filters - Using Accelerate, Motion effects - In-App Purchase - Git, SVN, etc. - Social network integration, like Facebook, Twitter, Flickr, Instagram, YouTube, Google, VKontakte, etc - Analitycs and Ads, iAd, AdMob, MM, Jumptap, RevMob, Chartboost, PlayHaven, AdWhirl, etc. And more... I’m good at communicating with clients, developers and designers (those with and without technical knowledge). I listen and pride myself on a strong attention to detail. I love new technologies and I am always looking for interesting and challenging projects, so don't hesitate to contact me if you're looking for a developer or some sort of mobile consulting. I skilled in C, Objective-C, iOS apps: iPhone and iPad, frond end and back end, Xcode, Xcode testing instrument occupies, AppStore publishing, Mobile testing, Apple's design and development guidelines. I have good experience with OOP, Design Patterns and Architecture design, algorithms and data structures. For 4 years I have been working for the big developers' team. I like working with experienced and skilled programmers. During this time, many applications have been written starting from iOS 4.0 up to the latest version. Prior to that, I got Master's degree in "Zaporozhye Institute of Economics and Information Technologies" in specialty "Computer systems and networks". During my study I practiced various programming languages​​, such as: С, C++, C#, Java (Android), Objective C (iOS), PHP, Delphi, Data Base. I enjoy making apps, and take pride in their work!

    Groups: Application Developers Alliance

    $27.78 /hr
    1,386 hours
    5.00
  6. Pavel Ismailov

    Pavel Ismailov

    4+yr Android / Client-server apps / Games / SQLite / JSON / API

    Russia - Last active: 14 hours ago - Tests: 2 - Portfolio: 3

    My goal is bring your idea to reality. 4 years experience in Android allows me work at high quality projects. I like to keep a close contact with you and inform you about the progress during all the project. My linkedin profile: http://linkedin.com/in/ismailov ---- APPS ---- - Twitch IRC chat - https://play.google.com/store/apps/details?id=org.tchat - Very Hard Game: Home - https://very-hard-game.com - Taxi app - https://play.google.com/store/apps/details?id=com.taxsee.taxsee - Pextr - https://play.google.com/store/apps/details?id=com.pextr.app - Other - https://very-hard-game.com/apps.html ---- DEVICES PARK ---- All devices from that list are REAL devices which I can use to test your app. - Samsung --- Galaxy Note 2014 Edition --- Galaxy Note 3 SM-N900 --- Galaxy Note 16Gb --- Google Nexus --- Galaxy S4 16Gb --- ATIV Smart PC --- ATIV Smart PC Pro --- Galalxy Tab III 16Gb 3G 10.1 --- Galaxy Tab III 8Gb 3G 7 --- Galaxy Tab III 16Gb 3G 8 --- Galaxy Tab II 16Gb 3G 10.1 ---- EXPERIENCE ---- My experience: - ANDROID SDK 2.3-5.0 --- UI/UX --- games --- client-server --- rest APIs --- SQLite --- JSON --- dynamically loading --- fragments --- camera recording --- audio recording --- canvas drawing --- multithreading --- sensors - REST APIS --- Facebook --- Twitter --- Vkontakte --- Parse --- Admob --- Flurry --- Leadbolt --- Google - JAVA --- OOP --- clean code --- MVC - GAMES ENGINE --- Andengine 2d games --- I am fanatic of Android OS and spend all my time on it! My main desire - do the job quickly, accurately and in a given time terms. Pleas check my open source apps https://github.com/pavel-ismailov http://very-hard-game.com/apps.html tel: +7-923-125-4461 skype: pavel.ismailov mail: pavel.ismailov@gmail.com linkedin: http://linkedin.com/in/ismailov github: https://github.com/pavel-ismailov facebook: https://www.facebook.com/pavel.ismailov.9

    Groups: Application Developers Alliance

    $33.00 /hr
    1,391 hours
    4.71
  7. Martin Kovachev

    Martin Kovachev

    Senior Mobile / Web Developer

    Bulgaria - Last active: 4 days ago - Tests: 9 - Portfolio: 33

    Thank you for visiting my profile! I am an experienced developer, generalist with over 15 years in the field of research, development and integration of software solutions - including web technologies, mobile devices, server / cloud solutions. What i do: - Software Development: iOS / Mac (Cocoa / Objective-C), Android (Java), Windows (.NET), C/C#/C++/PHP - Analysis and Consulting: Aiding Clients in developing their initial ideas into a working solution. Development of technical / cost documentation, finds and presents various solutions to not-so-everyday problems. - Project Management: Management of all aspects of a project - cost, time, resources, issues. Planning and development of initial costs, separation of tasks per team members, milestone tracking, Client communications. - Analysis, planning and development of cloud based solutions - scalable and redundant web services, load balancing solutions, database clusters (MySQL / Percona based), long term support on hardware and software. - UI / UX / Web Design Key industries / targets: - Business oriented applications for small / mid companies - mobile / web / desktop software applications - Entertainment sector - development of promotional / marketing applications / services What i can do for you: - A complete full-cycle development - from your initial idea - to the fully implemented, installed and managed product. - Warranty of a bug-free software - Longterm support on request I'll be happy to discuss your ideas at any moment! Martin Kovachev ------------------- A note to potential new Employers: I work with the idea of providing a quality product / service - and i am happy doing so but i expect to be paid for my experience and know-how :) I always require an upfront payment of at least 20% or if this is not possible - you must escrow the amount somewhere and release it on a per month basis. This is all i require in terms of payments but it is essential. Thank you for the understanding!

    $30.00 /hr
    0 hours
    4.97
  8. Jon Anderton

    Jon Anderton

    Semantic Mediawiki, Mediawiki, PHP, ASP.NET, HTML5+CSS3

    Russia - Last active: 2 days ago - Tests: 6 - Portfolio: 8

    — Experienced Mediawiki and SemanticMediawiki developer. (Have some commits merged into repository). — Mediawiki skin creator. — Expertise in CSS, jQuery, HTML and PHP/ASP.NET. — Very nice design skills (Photoshop/Illustrator)

    Groups: LoginRadius

    $33.33 /hr
    909 hours
    5.00
  9. Naira G.

    Naira G.

    Wordpress / HTML5 / CSS3 / Twitter Bootstrap / jQuery

    Armenia - Last active: 6 days ago - Tests: 6

    I am a web developer with more than 5 years of experience. I have worked with wide range of projects using Wordpress, Woocommerce, HTML / XHTML / HTML 5, Javascript / jQuery, CSS3, Twitter Bootstrap, PHP, MySQL, Photoshop. I create websites with Wordpress, including theme customisation, complete development, conversion from PSD, responsive pages development, plugin development / changes, do front-end development for html applications and websites.

    $17.78 /hr
    243 hours
    5.00