Dawid D
C Developer at MDM
Greater Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolDawid D is a seasoned C/C++ developer with 14+ years of experience building performance-sensitive systems across game engines, mobile platforms, backend services, and trading software. He has contributed bug fixes and maintenance to high-profile open-source projects like cocos2d-x and an Android beacon library, and helped ship internal tooling at Arm (bob-build). His recent roles span senior C++ work at Flightradar24 and high-frequency trading software, reflecting a focus on optimization, reliability, and low-level problem solving. A passionate optimizer and longtime Linux user, he prefers lean, portable solutions over "buy more RAM" fixes and enjoys squeezing performance out of constrained devices. Dawid also has hands-on experience mentoring and teaching Java/Git, plus a strong open-source footprint under the gelldur handle. Outside work he trains regularly and keeps an eye on extreme sports and film when time allows.
14 years of coding experience
9 years of employment as a software developer
Licentiate degree, Inżynieria oprogramowania, 4/5, Licentiate degree, Inżynieria oprogramowania, 4/5 at Uniwersytet im. Adama Mickiewicza w Poznaniu
Polish, English
Stackoverflow
11,418reputation
3.8mreached
121answers
7questions
forms
top-5%
fullscreen
top-1%
flask
top-5%
versioning
top-5%
multithreading
top-1%
cmake
top-5%
Github Skills (30)
debug10
c-language10
game-engine10
multithreading10
robolectric10
java10
javas10
android10
game-development10
cprogramming-language10
broadcast-receiver10
cocos2d-x10
fullscreen10
unit-testing9
forms9
Programming languages (19)
Github contributions (5)
cocos2d/cocos2d-x
Mar 2013 - Aug 2016
Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.x & 2.x.
Role in this project:
Software Engineer (focus on bug fixing and code maintenance)
Software Engineer (focus on bug fixing and code maintenance)Contributions:15 commits, 2 PRs, 5 comments in 3 years 5 months
Contributions summary:Dawid primarily focused on bug fixes and code improvements within the Cocos2d-x game engine. Their contributions included addressing compiler errors, fixing documentation inaccuracies, resolving issues with particle system files, and correcting compile-time errors related to floating-point number handling. They also addressed an issue related to building with shared libraries and made the necessary changes to the build system configuration. The user worked with both C++ and build system configurations.
cocos2dmetalc-plus-plusiosdevelopment-tools
AltBeacon/android-beacon-library
Jul 2015 - Jul 2015
Allows Android apps to interact with BLE beacons
Role in this project:Mobile Developer (Android)
Mobile Developer (Android)Contributions:5 commits, 5 PRs, 9 comments in 9 days
Contributions summary:Dawid primarily contributed to the Android beacon library by addressing bug fixes and implementing code improvements. These changes include optimization of object creation, migrating test environments to Robolectric 3.0, and resolving a ConcurrentModificationException within the distance calculation module. Furthermore, the user updated test configurations and addressed minor code review comments, improving the library's stability and maintainability.
android-appsbluetoothbleandroidbluetooth-low-energy
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