Plamen is available for hire
Hire PlamenPlamen Terziev
Verified Expert in Engineering
iOS Developer
Location
Sofia, Bulgaria
Toptal Member Since
September 15, 2014
Plamen is a software engineer and developer who specializes in front-end and back-end solutions. He has experience with iOS mobile native applications, C/C++ applications, and 2D/3D graphics and games. He is eager to learn and loves to work on challenging projects.
Portfolio
Bitsfleet, Ltd.
Realm, Unity3D, OpenGL, Cocoa, iOS, Objective-C, Swift
Droxic, Ltd.
Unity3D, Cocoa Touch, Objective-C, Swift
Tombooks (via Toptal)
OpenGL, Cocoa, Objective-C
Experience
Availability
Part-time
Preferred Environment
Subversion (SVN), Git, Visual Studio, Xcode
The most amazing...
...thing I've built is a 3D desktop application demonstrating different algorithms for surface subdivision.
Work Experience
CEO, Co-founder, and iOS Developer
2016 - PRESENT
Bitsfleet, Ltd.
- Implemented WasHere app - Share and discover the secret marks around you.
- Supported previous iOS projects in Swift and Objective-C.
Technologies: Realm, Unity3D, OpenGL, Cocoa, iOS, Objective-C, Swift
Senior iOS Developer
2014 - 2016
Droxic, Ltd.
- Implemented CalConvert Free: Metric, Currency and Unit Converter app.
- Implemented Timer Free: Multiple Countdown + Reminder app.
- Supported Broadway.com - Broadway Tickets, Videos, and News app.
- Implemented a 2D game built using Unity.
Technologies: Unity3D, Cocoa Touch, Objective-C, Swift
iOS Developer
2015 - 2015
Tombooks (via Toptal)
- Ported an existing iPad app to Mac using OpenGL, Cocoa Touch, and web views.
- Created scalable widgets to play with.
Technologies: OpenGL, Cocoa, Objective-C
Senior iOS Developer
2011 - 2014
Bitmix
- Created a social iOS native application for managing and sharing recommendations with friends.
- Supported and extended the iPhone and iPad versions of news reading applications.
- Updated the iPad news reading application to support Retina display.
- Integrated the iOS application with Newsstand.
- Created an iOS video player component with ad support.
Technologies: Core Data, RestKit, Core Animation, UIKit, iOS
Senior iOS Game Developer
2011 - 2011
Nexgen Development Group
- Created 2D iPhone game for managing Pet Park.
- Implemented game state persistence and server communication.
Technologies: PlayHaven, Tapjoy, SQLite, UIKit, Cocos2d, C++, iOS
C++ Game Developer
2010 - 2011
Masthead Studios
- Participated in development of a 3D MMORPG game in C++.
- Worked on 3D game client and game engine using C++ and DirectX and game servers using C++.
- Implemented asynchronous DirectX shaders compilation.
- Profiled and optimized different aspects of the game client.
- Implemented fast offline terrain light map generator.
- Researched physics simulation synchronization over the network.
Technologies: SQLite, PhysX, DirectX, Boost, C++
C++ Developer
2010 - 2010
Scopic Software
- Participated in CAD desktop application for woodworkers using C++ and OGRE.
- Worked on the core geometry engine used in the application.
Technologies: Qt, OGRE, OpenGL, C++
C++ Developer
2007 - 2009
Scopic Software
- Participated in a 3D application that is used by the dentists to mark margins on the teeth.
- Supported and enhanced testing tool that determined if a child can swallow a toy. It included physic and collision simulations that used the Bullet Physics library.
- Implemented drawing application prototype using a diffusion curves algorithm.
Technologies: Bullet, OpenGL, C++
Java ME Developer
2007 - 2007
Gameloft
- Supported mobile games on new devices.
- Integrated an ads platform in mobile games.
Technologies: Java ME
C/C++ Developer
2006 - 2007
Opencode Systems
- Participated in the core library used by all projects.
- Created convenient C++ interfaces for some of the Linux C primitives.
- Implemented unit tests for paths of existing classes.
Technologies: Linux, Boost, C++, C
Experience
WasHere - Share and Discover the Secret Marks Around You
Was Here is anonymous local sharing in a radius of 500 meters around you:
• See what neighbors and people around you are up to
• Share photos and videos or just text
• Put your graffiti art into the cloud
• Play scavenger hunt games
• Discover exciting new things
• Become a modern Kilroy
• See what neighbors and people around you are up to
• Share photos and videos or just text
• Put your graffiti art into the cloud
• Play scavenger hunt games
• Discover exciting new things
• Become a modern Kilroy
LoveThis
LoveThis is an iOS native application for managing and sharing recommendations with friends. I've implemented almost the entire application with the following technologies: iOS, UIKit, Foundation, Core Data, Core Animation, and RestKit.
The Times of London for iPhone
This is a news reading native application for iPhone, in which I implemented news downloading and offline mode support. I participated in all new features requested from the client.
Pet Park
Pet Park is an iPhone 2D game for managing a park of pets using Cocos2D. I implemented many parts of the game engine, game play logic, and server communication.
Earthrise
Earthrise is a 3D MMORPG game written in C++. I participated in various features for the client. I worked on the game servers and some of the tools such as the Model Editor and the World Editor.
SketchList 3D
http://sketchlist.com/SketchList 3D is a 3D cabinet design software for both hobby and professional users. I participated in improving the core geometry engine and implementing different client features.
3M™ Margin Marking Software
This application was designed for ditching, die cutting, and model trimming of teeth and was integrated as part of the 3M™ True Definition Scanner. I implemented an algorithm for smoothing a 3D mesh while keeping the feature edges and an algorithm for finding feature edges on a 3D mesh.
Vouch
http://www.vouchsoftware.comVouch runs a series of simulations using the top Toy Industry Standard Tests and toy 3D model to verify that toy is safe for use. I implemented various tests and participated in Bullet Physics integration.
Skills
Languages
Swift, Objective-C, C, C++, HLSL, GLSL
Other
Web Development, Game Development
Frameworks
ZURB Foundation, Boost, Qt, Cocos2d, RestKit, UIKit, Core Data, PhysX, OGRE, Bullet, Cocoa, Cocoa Touch, Unity3D
Libraries/APIs
OpenGL, Standard Template Library (STL), Core Animation, PlayHaven, DirectX
Tools
Subversion (SVN), Git, Microsoft Visual Studio, Xcode, Visual Studio
Paradigms
Agile Software Development, Object-oriented Design (OOD), Class-based OOP, Scrum, Design Patterns
Platforms
MacOS, iOS, Windows, Linux, Tapjoy, Java ME
Storage
Realm, SQLite
Education
2009 - 2011
Master's Degree in Computer Graphics
Sofia University "St. Kliment Ohridski" - Sofia, Bulgaria
2005 - 2009
Bachelor's Degree in Computer Science
Sofia University "St. Kliment Ohridski" - Sofia, Bulgaria
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