Marija Efremova

Marija Efremova

Skopje, Macedonia
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Marija Efremova

Marija Efremova

Skopje, Macedonia
Member since August 1, 2013
Marija has been a developer for almost 6 years, possessing an excellent knowledge of object-oriented programming, design patterns, algorithms, and data structures. She is effective working both with a team and alone. She strives to develop, design, and distribute native iOS applications.
Marija is now available for hire
Portfolio
Experience
  • Objective-C, 3 years
  • Newsstand Kit, 3 years
  • Cocoa Touch, 3 years
  • CocoaPods, 3 years
  • Twitter iOS SDK, 3 years
  • C++, 5 years
  • C, 5 years
  • SQL, 5 years
Skopje, Macedonia
Availability
Part-time
Preferred Environment
Mac OS, Xcode
The most amazing...
...thing I've coded is a single-player and multiplayer quiz game with chat integration.
Employment
  • iOS Developer
    Freelance
    2011 - PRESENT
    • Developed an augmented reality application for iOS using NinevehGL.
    • Developed a .obj model viewer application.
    • Created a carousel app with a split display on half of the screen allowing for several operations at the same time. Combined many different native iOS applications and other extra features to make the application even more usable.
    • Built a weather forecast clock using OpenGL.
    • Developed a native newsstand application featuring a .pdf and .epub reader.
    • Developed a RSS feed reader application.
    • Developed a single-player and multiplayer quiz game with chat integration.
    • Worked as a team member in developing an application for a digital community.
    • Developed a word puzzle game.
    • Developed social integration support for applications.
    Technologies: Objective-C, OpenGL ES, PHP
  • OpenGl/ iOS/ engineer
    Moondropapps.com (via Toptal)
    2014 - 2015
    • Lead engineer of the iOS application.
    • Redesigned the app's gallery and optimized the image loading process.
    • Improved the photo editing features.
    • Added Twitter and Facebook sharing support.
    • Implemented an image starring feature.
    • Added ads support.
    Technologies: Objective-C, OpenGL ES
Experience
  • Drawp (free version) (Development)
    https://itunes.apple.com/us/app/drawp-drawing-families-closer/id571816406?mt=8

    Drawing and painting app with over 200 colors and textures, voice recording, unlimited art storage and coloring pages designed by leading artists. Allows kids to safely and easily share artwork in a parent-approved network.

  • Drawp Unlimited (Development)
    https://itunes.apple.com/us/app/drawp-unlimited-drawing-families/id625439995?mt=8

    Drawing and painting app with over 200 colors and textures, voice recording, unlimited art storage and coloring pages designed by leading artists. Allows kids to safely and easily share artwork in a parent-approved network.

  • We365 (Development)
    https://itunes.apple.com/ca/app/we365/id722529129?mt=8

    Developed the initial version of the We365 iOS app.
    We365 is a social network for taking daily challenges, explore causes and recording user's volunteer hours.

  • WordWell (Development)
    https://itunes.apple.com/mk/app/word-well/id591369961?mt=8

    Development and redesign of the WordWell, puzzle game which is played by combining letters in any direction (horizontally, vertically or diagonally) in order to make bigger words.
    Added new different game modes (survival, strategy, time, free) and score table for tracking and comparing weekly and all-time scores.

  • BG reader (Development)
    https://itunes.apple.com/mk/app/bg-reader/id781450705?mt=8

    An RSS feed reader which enables you to read all the latest news from the best Bulgarian portals on one place.

  • FridgeCheck (Development)
    https://itunes.apple.com/us/app/fridgecheck/id821747573?mt=8

    FridgeCheck is application that will fasten the process of deciding what to make for your meal based on the ingredients you enter.

  • PaintDrop - Sketch (Development)
    https://itunes.apple.com/cy/app/paintdrop-sketch/id578758217?mt=8

    A simple iPad application for sketching with few key features:
    - pen tool with adjustable thickness
    - dynamic pencil tool
    - easy to use straight line tool
    - one touch color selection
    - background tool to customize your background
    - easy to use drawing management system
    - social integration: one click share to Facebook, Twitter and Email
    - integrated camera tool for background images
    - integrated iPad picture tool

  • Signature+ (Development)
    https://itunes.apple.com/cy/app/signature+-sign-contracts/id577284402?mt=8

    An easy to use app for scanning and signing documents.

  • Quiz app (Development)

    A single-player and multiplayer quiz game with chat integration.

  • .obj file viewer (Development)

    It allows users to access and view 3D .obj files downloaded from mail and to interact with them (navigate, rotate, zoom in/out).

  • A Tutorial on iOS 8 App Extensions (Publication)
    iOS 8 introduced a new concept called App Extensions. This new feature did not break down the walls between the applications, but it opened a few doors providing gentle yet tangible contact between some apps. The latest update gave us an option to customize the iOS ecosystem, and we are eager to see this path opening up as well.
Skills
  • Languages
    Objective-C, Swift, SQL, C, PHP, Java, C++
  • Frameworks
    EventKit, StoreKit, Social Framework, Core Location, Cocoa Touch, EventKitUI, Foundation, iOS SDK, AV Foundation, Address Book, Address Book UI, Newsstand Kit, Accounts, AudioToolbox, Media Player, Map Kit, Cocoa, Message UI, OpenCL, Core Data, JSON Framework for Objective-C
  • Libraries/APIs
    Twitter iOS SDK, REST API, MBProgressHUD, AFNetworking, SQLite, Facebook iOS SDK, iOS Native Libraries, CocoaPods, Core Animation, Parse iOS SDK, MagicalRecord, Flurry, Amazon API, Facebook API, Facebook SDK, Facebook Open Graph API, Google Ads, Google Maps, OpenGL
  • Tools
    SourceTree, GitHub, Crashlytics, Google Analytics
  • Paradigms
    Agile Software Development, MVC, Lean Development, Object-oriented Programming (OOP)
  • Platforms
    iAd, iOS
  • Misc
    UI Kit, iOS 8 Extensions
  • Storage
    MySQL
Education
  • BA degree in Informatics and Software Engineering
    University of "St. Cyril and Methodius" - Faculty of computer science and engineering (FINKI) - Skopje
    2008 - 2014
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