Luko Gjenero

Luko Gjenero

Zagreb, Croatia
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Luko Gjenero

Luko Gjenero

Zagreb, Croatia
Member since March 1, 2013
Luko is a seasoned developer with contributions to numerous large-scale projects currently in use by Croatian national organizations. He is schooled in electrotechnics, and has published several important research papers on a variety of topics. He enjoys being faced with challenging problems.
Luko is now available for hire
Experience
  • C, 10 years
  • C++, 8 years
  • C#, 8 years
  • Java, 8 years
  • iOS, 5 years
  • Objective-C, 5 years
  • OpenCL, 4 years
  • CUDA, 3 years
Zagreb, Croatia
Availability
Part-time
Preferred Environment
Mac OS X, Windows 7, Xcode, MS VS, SVN, Mercurial
The most amazing...
...software I've created is a 4D Thermal Imaging System. It helps to replace expensive and invasive medical diagnostics with cheaper and non-invasive alternatives.
Employment
  • Software Engineer
    University of Zagreb University Computing Centre, www.srce.unizg.hr
    2011 - PRESENT
    • Worked at the Sector for Computing Systems.
    • Maintained the Croatian national grid infrastructure.
    • Maintained the Croatian EGI (European Grid Initiative) grid infrastructure.
    • Maintained HPC cluster resources, specifically GPU resources.
    • Created and maintained applications for the grid and the GPGPU environment.
    • Developed SW for availability and reliability of grid systems as part of an EU pilot project.
    Technologies: GT2, SGE, Torque (PBS), FhGFS, Cobbler, Puppet, CUDA, OpenCL
  • iOS Developer
    FreeOnTour (via TopTal) www.freeontour.com
    2014 - 2015
    • Rebuilt the application.
    • Added new functionalities.
    • Updated and optimised UI.
    • Implemented a new app datastore and communication layer.
    • Gave logistical assistance in publishing the app.
    Technologies: iOS7/8, Objective-C, iPad
  • iOS Developer
    Monster Productions (via TopTal) monsterprod.com
    2014 - 2014
    • Updated app UI for iOS7.
    • Fixed bugs from the previous version.
    • Setup apple development certificates for enterprise development.
    • Helped the client with device installation procedure.
    Technologies: iOS
  • iOS Developer
    ITU (via TopTal) www.itu.edu
    2014 - 2014
    • Created a developer social network app from scratch.
    • Implemented chat functionality using Quickblox API.
    • Added APIs for tracking and crash reporting.
    • Implemented user review functionality.
    • Implemented login using OAuth for twitter and github.
    Technologies: iOS
  • Senior IOS developer
    Paktor (via TopTal) www.gopaktor.com
    2013 - 2014
    • Created a stable iOS client for a highly popular dating app.
    • Implemented unit tests for core app functionality.
    • Managed a small team of developers.
    • Used APIs for performance tracking, crash reporting and A/B testing.
    • Improved app performance by reducing memory usage and thread management.
    Technologies: iOS, Objective-C
  • Senior Developer
    The Apps Crew (via TopTal)
    2013 - 2013
    • Singly created iPhone and Android applications and back-end web services for several applications.
    • Developed iPhone and Android app for mining security checks that allows instant incident reporting and supports corporate hierarchy.
    • Developed iPhone app for promotion of health clubs.
    • Developed iPhone and Android app for easier interaction between handymen and perspective clients.
    • Developed iPhone app that allows building blueprints of app ideas.
    • Supported a start-up company with consulting in regard client management and workload distribution.
    Technologies: Objective-C, Java, PHP
  • Software Engineer
    Ruđer Bošković Institute, www.irb.hr
    2009 - 2011
    • Worked at the Center for Informatics and Computing.
    • Researched and developed new visualization techniques in science.
    • Conducted research for new image processing applications and thermal imaging applications.
    Technologies: MATLAB, C/C++, OpenGL, OpenCL, Depth Sensors (e.g. Kinect)
  • Software Engineer
    Faculty of Electrical Engineering and Computing, www.fer.hr
    2007 - 2008
    • Worked as a developer on an electronic registration and tracking system for marine vehicles. The project was a part of an "E-governance" pilot program funded by the Croatian government and the EU to replace existing solutions with a robust system that joined the efforts of several ministries and agencies.
    • Designed and developed software for the Cinterion XT65 GSM/GPS module.
    • Designed and developed a desktop client application.
    Technologies: Java ME, Java SE, .NET
  • Software Engineer
    Telegra, www.telegra-europe.com
    2005 - 2007
    • Was responsible for the development of a number of large projects.
    • Developed a traffic management system for state highways and tunnels.
    • Created a tunnel safety system.
    • Developed and maintained a manufacturing process support system.
Experience
  • 4D Thermal Imaging System for Medical Applications (Development)

    The system was developed using MATLAB, OpenGL, OpenCL and Kinect.

  • Electronic Registration and Tracking System for Marine Vehicles (Development)

    The system was developed using Java ME, Java SE, .NET and GSM/GPS.

  • fLight (Development)
    http://www.fiskalneblagajne.info/

    This is a fiscalization software for small businesses. It was developed using C#, .NET, WPF, SQLite, and MySQL.

  • QUZE (Development)
    https://itunes.apple.com/us/app/quze/id573712321?mt=8

    This is a media-sharing iOS client application.

  • ARMS (Development)

    This is an advertising platform pilot project that is based on augmented reality, depth sensing, and 3D visualization. It was developed using C/C++, Kinect, and Ogre3D.

  • iCyBro (Development)
    https://itunes.apple.com/us/app/icybro/id514333276?mt=8

    This is a visualization tool for applications based on a CyBro controller for the iOS platform.

  • CHART (Development)

    This is a cross-platform (Windows, Linux, Mac OS X, iOS), high performance 2D charting library. It was created using C#, Objective-C, OpenGL, GLSL, XNA, HLSL, and OpenCL.

  • TapDoc (Development)

    Developed a iPhone application primarily designed as an assessment of the neuromotor functionality of the hand (ex. hand motor impairment) as a result of cerebral function status.
    The application is based on scientific research conducted on Ruđer Bošković Institute partially by myself.
    Objective-C, Matlab.

  • DArt, Prologis tehnologije d.o.o. (Development)

    These are various modules for business management systems that I developed, including ERM, ERP, SCM, OMA, and BA solutions.

  • Improving Virtual Team Communication (Other amazing things)

    This was published in the proceedings of the 14th International Conference on Software, Telecommunications, and Computer Networks (SoftCOM 2006).

  • Detection of Biogas at the Municipal Waste Landfill Using a Thermal Imaging Camera (Other amazing things)

    This was published in the proceedings of the International Scientific Congress on Energy and the Environment in 2010.

  • Heat Source Parameter Estimation from Scanned 3D Thermal Models (Other amazing things)
    http://ieeexplore.ieee.org

    This was published in the proceedings of the Vol. I. MEET&GVS 34th International Convention MIPRO in 2011.

  • Application of Infrared Thermal Imaging in Blade System Temperature Monitoring (Other amazing things)

    This was published in the proceedings of the 53rd International Symposium on Electronics in Marine.

  • Active 3D Scanning Based 3D Thermography System and Medical Applications (Other amazing things)
    http://ieeexplore.ieee.org

    This was published in the proceedings of the Vol. I. MEET&GVS 34th International Convention MIPRO in 2011.

  • Experimental Verification of Heat Source Parameter Estimation from 3D Thermograms (Other amazing things)

    This was published in the Periodicum Biologorum in 2011.

  • 4D Thermal Imaging System for Medical Applications (Other amazing things)

    This was published in the Periodicum Biologorum in 2011.

  • Vital Fitness and Health Telemonitoring of Elderly People (Other amazing things)

    This was published in the proceedings of Vol. I. MEET&GVS 34th International Convention MIPRO in 2011.

  • Semidefinite optimization of High Performance Linpack on heterogeneous cluster (Other amazing things)

    This was published in the proceedings of Vol. I. MEET&GVS 36th International Convention MIPRO in 2013.

  • Towards new energy efficiency limits of High Performance Clusters (Other amazing things)

    This was published in the proceedings of ITI 2013, 35th International Conference on INFORMATION TECHNOLOGY INTERFACES 2013

Skills
  • Languages
    C++, Java, C, C#, Objective-C
  • Frameworks
    OpenCL
  • Libraries/APIs
    SQLite, OpenGL, XNA
  • Tools
    MS Visual Studio, Microsoft Team Foundation Server, SVN, Xcode, MonoDevelop, Eclipse, Redmine
  • Platforms
    CUDA, iOS, Android, SharePoint
  • Storage
    MySQL, MS SQL, SQL Server, Oracle
Education
  • Graduate Engineering degree in Electrotechnics
    Faculty of Electrical Engineering and Computing - Zagreb, Croatia
    1999 - 2005
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