Sergei Rybalkin (@lightdelay) header
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Tech lead for Android Infra @Meta | 🛠 Compilers | all opinions are my own

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Joined August 2010
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Sergei Rybalkin retweeted
🚀 Big news from the Kotlin Foundation! We’re welcoming @lightdelay, Senior Staff Software Engineer at @Meta and longtime Kotlin champion, to the board. With his technical leadership and community insight, Sergei will help shape Kotlin's future. 👏kotl.in/7mvxly
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#kotlinconf 2025 vs 2023
I have the best possible reason to miss #kotlinconf this year ❤️
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Sergei Rybalkin retweeted
Let's give it up for @lightdelay hitting the #dcnyc24 stage 📣 Explore K2 #Kotlin compiler & its impact on production environments. Discover how K2 enhances performance & efficiency in Kotlin compilation with insights & benchmarks from Meta. nyc.droidcon.com/sergei-ryba…
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15 years less backwards compatibility compared to java
What is the "killer feature" for server-side Kotlin (existing or not)?
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Sergei Rybalkin retweeted
My team is hiring #AndroidDev which wants to work in OSS! Don't be shy. And yes he's my manager 👇 – at Berlin, Germany
Just saw @Eli_White at the Meta internal eng fair! If you are excited about React for the iOS and Android ecosystems, he’s hiring ;)
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Heaving both of your 2FA factors on one device is a bad idea. How do people solve the second device problem? especially when travelling I just found myself in a situation where my password manager required a physical device that I don’t have with me
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Sergei Rybalkin retweeted
Try out the Alpha of K2-based IntelliJ plugin and share your feedback! 🎉 blog.jetbrains.com/idea/2024…
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Sergei Rybalkin retweeted
In other news, I'll be talking about Java compiler hacking, type systems, flow-sensitive type inference, and AI* at WITS/POPL. Come say hi if you're going to be around! popl24.sigplan.org/details/w…
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Is there a lightweight Json parse for jvm? I want to use it as a part of a kotlin build, and figured out Jackson classloading is too heavy even for compilation with daemon. need minimal classloading, fast runtime (no regexp under the hood).
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I feel exactly the opposite about Kotlin Multiplatform. It’s probably the first multi-platform approach that might work for mass adoption. Here is why: 1️⃣ Right on time for the market where one could build an app using genAI with a limited platform knowledge
This post by @donnfelker is pure gold donnfelker.com/why-kotlin-mu… The article presents a pragmatic approach for choosing the right technology for your needs, or, generally speaking, the right tool for the job. History repeats itself, as seen with Cordova/Phonegap, Ionic, Xamarin, React Native, and currently with Kotlin Multiplatform. This is a great read for everyone who has an impact on the tech stack, from business owners to engineering managers, tech leads, and developers. #Mobile #KMP #multiplatform #androiddev #iosdev #webdevelopment
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2️⃣ In increasing software generalists hiring trend (instead of platform specialists) We do not have cheap money any longer, companies are pivoting.
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3️⃣ Community and adoption momentum. There’s lot of people and companies investing in KMP right now. It all started before a stable release.
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How to survive a long haul flight with 8 months old baby? Please share your advice and life hacks. London —> South East Asia
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I guess Move fast and break things is now taken by another company
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As an Engineer I think a lot about Times New Roman Empire
As a Vice President at Microsoft I always ask interviewees if they have a strong opinion about folks who ask them if they care about coding fonts. Then I have those folks stop interviewing my candidates.
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Best good morning email!
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I’m looking for an Engineering Manager for a Mobile Language Foundation team at Meta, London office. We improve modern Android and iOS programming languages (Kotlin, Swift) to make Meta apps better. DMs are open like, share metacareers.com/jobs/1426729…
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Serious question. What’s the best approach to writing a monolith in 2023?
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Portugal. Wine : Work 1 : 0
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Hey Lisbon friends! Who is up for a beer? 😀
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