Yaroslav Tkachenko
@sap1ens.com
Founder at Irontools. Data Streaming Advocate. Building data platforms. Writing about data engineering, real-time data and distributed systems.
Building: https://irontools.dev
Website & blog: https://sap1ens.com
Newsletter: https://streamingdata.tech
Building: https://irontools.dev
Website & blog: https://sap1ens.com
Newsletter: https://streamingdata.tech
IDK, the invention of web browsers? 😜
November 7, 2025 at 6:10 PM
IDK, the invention of web browsers? 😜
I'm very excited about the upcoming webinar: "The State of Stream Processing", recorded with brilliant @olenakutsenko.bsky.social and @gunnarmorling.dev.
October 31, 2025 at 1:05 PM
I'm very excited about the upcoming webinar: "The State of Stream Processing", recorded with brilliant @olenakutsenko.bsky.social and @gunnarmorling.dev.
October 27, 2025 at 4:29 PM
At Polyglot Vancouver
October 11, 2025 at 4:03 PM
At Polyglot Vancouver
I'll be at the Flink Forward in Barcelona next week. Happy to talk about all things data streaming, Flink, Arrow, DataFusion and more. You can also get these cute stickers! 🐿️
October 9, 2025 at 5:23 PM
I'll be at the Flink Forward in Barcelona next week. Happy to talk about all things data streaming, Flink, Arrow, DataFusion and more. You can also get these cute stickers! 🐿️
One of my superpowers: actually watching conference talk recordings 🤓
October 7, 2025 at 2:08 AM
One of my superpowers: actually watching conference talk recordings 🤓
Really, Grammarly?
September 18, 2025 at 10:06 PM
Really, Grammarly?
Introducing Iron Vector: native, columnar, vectorized, high-performance accelerator for Apache Flink SQL and Table API built on top of Rust, Arrow and DataFusion.
Reduce your Flink compute cost by up to 2x or handle 2x more data with the same infrastructure.
Reduce your Flink compute cost by up to 2x or handle 2x more data with the same infrastructure.
September 15, 2025 at 4:04 PM
Introducing Iron Vector: native, columnar, vectorized, high-performance accelerator for Apache Flink SQL and Table API built on top of Rust, Arrow and DataFusion.
Reduce your Flink compute cost by up to 2x or handle 2x more data with the same infrastructure.
Reduce your Flink compute cost by up to 2x or handle 2x more data with the same infrastructure.
I was compelled to make this
September 2, 2025 at 3:23 AM
I was compelled to make this
arrow-avro: I'm an experimental library!
me: ok, not a big deal
me, three days later: oh, I see 😬
me: ok, not a big deal
me, three days later: oh, I see 😬
August 31, 2025 at 9:34 PM
arrow-avro: I'm an experimental library!
me: ok, not a big deal
me, three days later: oh, I see 😬
me: ok, not a big deal
me, three days later: oh, I see 😬
The ability to keep up with DataFusion upgrades is a skill. The project truly leverages "breaking changes are fine in a major version upgrade" rule. Just look at this: datafusion.apache.org/library-user... 😅
August 29, 2025 at 10:41 PM
The ability to keep up with DataFusion upgrades is a skill. The project truly leverages "breaking changes are fine in a major version upgrade" rule. Just look at this: datafusion.apache.org/library-user... 😅
What's your getpocket.com export stats?
June 16, 2025 at 12:51 AM
What's your getpocket.com export stats?
At #WebSummit Vancouver. It’s nice to travel to a conference in 20 minutes with no flights involved 😀
May 28, 2025 at 4:42 PM
At #WebSummit Vancouver. It’s nice to travel to a conference in 20 minutes with no flights involved 😀
Opening Bluesky this morning...
May 27, 2025 at 3:41 PM
Opening Bluesky this morning...
How did we allow Jackson to become the default Java JSON library? 🫠
May 9, 2025 at 8:52 PM
How did we allow Jackson to become the default Java JSON library? 🫠
Setting up cross-platform build for a Rust project the first time 😅
May 1, 2025 at 4:48 PM
Setting up cross-platform build for a Rust project the first time 😅
I've realized why I like prog metal: it's perfect for Pomodoro-style focus intervals! 😄
April 21, 2025 at 2:27 AM
I've realized why I like prog metal: it's perfect for Pomodoro-style focus intervals! 😄