Andrey Breslav
Designer
London, England, United Kingdom
Summary
🤩
RockstarAndrey Breslav is a veteran language designer and engineer with 16 years of experience, best known for leading the creation of the Kotlin programming language from its inception in 2010 through 2020. Based in London, he blends deep language-design expertise with pragmatic engineering, routinely refining APIs and examples to improve clarity and correctness—as evidenced by contributions to the widely referenced kotlin/coroutines-examples repository. His background combines project leadership with hands-on work on coroutines and developer ergonomics, making complex concurrency concepts accessible. Colleagues know him for meticulous attention to naming, signature simplicity, and removing subtle bugs like name shadowing to produce cleaner, more maintainable code.
16 years of coding experience
Stackoverflow
25,331reputation
1.4mreached
110answers
2questions
abstract
top-1%
generics
top-5%
string-formatting
top-1%
lambda
top-5%
java
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intellij-idea
top-5%
Github Skills (24)
kotlin10
asynchronous10
async10
constructor10
inheritance10
string-formatting10
abstract10
coroutines10
concurrency10
code-optimization9
intellij-idea9
java9
lambda9
syntax9
generics9
Programming languages (4)
Github contributions (5)
Kotlin/coroutines-examples
Apr 2016 - Aug 2016
Examples for coroutines design in Kotlin
Role in this project:
Back-end Developer
Back-end DeveloperContributions:27 commits, 2 PRs, 23 pushes in 3 months
Contributions summary:Andrey primarily worked on refining the code examples within the `kotlin/coroutines-examples` repository. Their contributions involved clarifying method names, adding checks, removing name shadowing, and simplifying function signatures. These changes spanned multiple files and appear focused on improving code clarity and adherence to design principles for Kotlin coroutines.
kotlinkotlin-multiplatformcoroutines
hhariri/kotlin
Oct 2013 - Jun 2014
Contributions:121 commits in 8 months
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