Christian Speckner
Software Developer at Mayflower GmbH
Würzburg, Bavaria, Germany
Summary
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Rockstar🎓
Top SchoolChristian Speckner is a software developer based in Würzburg, Germany, with 12 years of experience bridging scientific research and production engineering. Trained as a physicist with a PhD in High Energy Physics, he brings rigorous problem-solving and a propensity for clean abstractions to backend systems. At Mayflower GmbH he develops robust software while contributing to notable open-source projects like the multi-platform Atari 2600 emulator Stella and the async-mutex library, where he focused on data-structure design, refactoring, and synchronization primitives. He has taught web security as a lecturer, reflecting an ability to communicate complex technical topics clearly. Christian’s background in academia and physics research informs a methodical approach to architecture and interface design, often favoring abstract interfaces and modular refactors that reduce long-term maintenance risk. Colleagues can expect a developer who combines deep technical discipline with practical experience in concurrent and embedded-style codebases.
12 years of coding experience
3 years of employment as a software developer
PhD, High Energy Physics, PhD, High Energy Physics at Würzburg University
German, English
Github Skills (11)
asynchronous10
unit-testing10
typescript10
javascript10
c-language10
typescripts10
cprogramming-language10
emulation10
async10
typescript-types10
testing10
Programming languages (15)
Github contributions (5)
DirtyHairy/async-mutex
Oct 2016 - Nov 2022
A mutex for synchronizing async workflows in Javascript
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 reviews, 105 commits, 27 PRs in 6 years 2 months
Contributions summary:Christian primarily contributed to the core functionality of the `async-mutex` library, focusing on implementing and improving the mutex and semaphore implementations. Their work involved adding features like `isLocked` and `tryAcquire`, refactoring tests with fake timers and async/await, and introducing the `withTimeout` decorator for handling timeouts. They also refactored the internal implementation to use a `Semaphore`, indicating a shift in underlying mechanisms.
semaphorejavascriptmutexasynctypescript
stella-emu/stella
Oct 2016 - Nov 2022
A multi-platform Atari 2600 Emulator
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 releases, 600 commits, 2 PRs in 6 years 3 months
Contributions summary:Christian's commits primarily involve the creation of new data structures and the refactoring of existing code within the Atari 2600 emulator project. Their work focuses on defining and organizing data types, specifically related to TIA functionality. The changes involve moving enums into separate header files and creating abstract interfaces.
atari2600atari-2600emulatorsemulatoratari
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