Mohammed Hassan

Helsinki, Finland.

Work Experience:

December 2016 - Now

Part of the Finland security R&D team, we focus on how to secure Huawei mobile phones
Port Huawei secure OS code base to the clang compiler. This includes development and debugging.
Research and implement ways to build secure OS outside the Android source tree
Research and implement support for undefined behavior GCC sanitizer in secure OS
Port Optee OS to Hisilicon Hi2660 hardware
Implement support for clang CFI (Control Flow Integrity) in secure OS
Participate in various testing activities with other teams.

September 2012 - December 2016

Design and implement QtDeclarative bindings for the media discovery and browsing framework grilo.
Initial design and implementation of jolla media player using Qt/QML
Design and implementation of a GStreamer camera source element to be used by jolla camera. The element sits on top of Android camera HAL.
Design and implementation of a GStreamer video sink element to be used for camera viewfinder and gallery bideo playback rendering. The sink element is built on top of Android EGL extensions allowing efficient video rendering via GLES.
Adoption of GStreamer OpenMAX elements for usage with Android OpenMAX IL cores
Performance optimization for the whole camera and video playback pipelines.
Maintenance of the whole GStreamer framework for Sailfish OS including Jolla phone, Jolla tablet and various community devices.
Various middleware tasks including external SD card, tracker fixes, dconf migration and many others
Migration of SailfishOS to GStreamer 1.x. Including writing all the needed elements to allow camera functionality, video rendering and HW accelerated video decoding and encoding.

November 2011 - June 2012

Implementation of GStreamer plugins to wrap binary only encoders delivered by the chipset vendor in order to utilize GStreamer for video recording.
Implementation of a GStreamer source to allow using camerabin2 for video recording.
Implementation of an OpenGL ES2 based GStreamer sink for the camera viewfinder.
Work on optimizing the camera video recording path.

July 2008 - November 2011

Participate in Qt wrappers prototyping for the Media Application Framework (MAFW).
Harmattan camera team:
- Participation in the UI development.
- Implementation of the camera texture streaming/OpenGL ES2 based viewfinder in cooperation with Graphical adaptation, Multimedia middleware and Camera Adaptation
- Profiling camera ui and the whole vertical camera stack in order to identify the bottlenecks
- Interpreting the output of various tracing tools for various use cases (Still image capture, 720p video recording, ... etc) in order to identify bottlenecks.
- Pushing forward performance optimizations for the whole vertical camera stack including but not limited to the ISP driver, the adaptation components, viewfinder and DSP GStreamer components, the UI and the UI toolkit.
- Development of minimal kernel patches needed to help analyzing performance problems.
- Nominated "Harmattan hero" for my work on camera especially the viewfinder.

February 2007 - July 2008

Research, implement and develop various processes and tools needed for managing and improving the localization quality for Maemo SW (N800 and N810).
Prepare the translation files for the translation vendor, quality check the actual translation deliveries, package and send them to integration.
Technical support was given to the vendor engineer if needed.

November 2005 - February 2007

Implementing web portals, dynamic websites and intranet portals using Drupal.
Customizing various Open Source software applications to fit the needs of the company clients.

December 2004 - September 2005

September 2003 - October 2004

Linux system administrator, Management and administration of the various company servers, Among them is amrkhaled.net, moezmasoud.com and other small sites.
Administration of apache, MySQL, postfix and courier MTA for virtual hosts.
Maintenance of the GNU/Linux intranet server "firewall, file and print shares".
Maintenance of the internal network.
Help desk and support for the php developers.

January 28th - February 4th 2005: Participation in Asia source I as one of the localization track facilitators.
March 14th 2005: A presentation about the state of Arabic support and the free desktop as part of the MENGOS conference.
July 26th and 27th 2005: Gave two presentations during the 2nd OSS conference in Jordan organized by INT@J: OS Developer's Perspective: An Open Source Toolkit and The Status of Localization/Arabization of Linux and Open Source Software
January 8th 2006 - Jan 15th 2006: Participation in Africa source II as one of the NGO migration track facilitators.
July 12th 2006 - July 16th 2006: Trainee, North African Regional Wireless Training Workshop, Morocco organized by APC
January 2005: Participation in Asia source I as one of the localization track facilitators.
January 2006: Participation in Africa source II as one of the NGO migration track facilitators.
Debian developer as of March 2007.

Nationality: Egyptian.
Age: 34
Date Of Birth: 29/3/1981
Place Of Birth: Cairo, Egypt
Marital state: Divorced.
Education: Faculty of pharmacy, Cairo university.
Interests: I usually spend my free time coding and hacking or reading, Trying to learn new technologies and increasing my knowledge about GNU/Linux, Maintain my website www.foolab.org, and trying to spread GNU/Linux by joining any possible activities, Maintain my own software projects and/or trying to fix bugs in other software applications specially related to Arabic as well as participating in volunteer work.