
Joran Dirk Greef
@jorandirkgreef
Creator, Founder and CEO of @TigerBeetleDB — the financial transactions database designed to power the next 30 years of transaction processing.
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In 2020, we discovered a fundamental limit in the general-purpose DB design for transaction processing. This led to the creation of TigerBeetle. Today, I'm excited to announce TigerBeetle's $24 million Series A led by @natalievais of @sparkcapital. tigerbeetle.com/blog/2024-07-2…
Excited to announce TigerBeetle's $24 million Series A. Led by @natalievais of @sparkcapital with participation from @AmplifyPartners and @Coil. tigerbeetle.com/blog/2024-07-2…
The 1st Table Mountain Database Management Seminar Oct 9, 2025 An overnight hike — DBMS philosopher walk and talks, card games, South African braai under starry skies — with TigerBeetle, professors Philippe Bonnet and @peterabcz, and @DominikTornow #TMDBMS




TigerBeetle is the financial transactions database designed for mission critical safety and performance to power the next 30 years of OLTP. github.com/tigerbeetle/ti…
Andrew Kelley's talk about SoA from a few years ago totally and completely reinvigorated my love for computers and programming, I haven't been the same since
It's always a good time to talk about event loops
Walk and talk with @jorandirkgreef and the @TigerBeetleDB team, climbing Lion’s Head, chatting about Deterministic Simulation Testing & Event Loops. Stunning backdrop for stimulating conversations

3 months into officially joining @TigerBeetleDB and I'm reminded of the joy I got from receiving this special credential from our illustrator @joymachs on my first day 🤗 Appreciate being on the beetles bus with you Joy!

What percentage of PG deployments around the world run Read Committed as the default isolation level, and how nervous does this make you?
youtube.com/watch?v=yKgfk8… @jorandirkgreef is one of the best presenters I've ever heard. EVERY WORD he says is meaningful. You can tell how hard he works at his talks. The theory and history are fascinating. The thoughtfulness of the flow of his talk is phenomenal.
youtube.com
YouTube
1000x: The Power of an Interface for Performance by Joran Dirk Greef
And that's before you even get to the STUNNING visualization techniques for showing their benchmark results. UNBELIEVABLE how good @TigerBeetleDB is. This team sets the standard for how software should be done.
So you are telling me that if - You add ketchup to the fries - Dominik can only gets fries with ketchup after that? what a strongly consistent reality we live in!
Solving contention…
Narrator: They did, in fact, not share the fries. Dominik ate all the fries 🍟
There’s nothing like sharing Shared Nothing Distributed Burgers with my good friend @DominikTornow .. - How to apply ideas from chain replication for tighter distributed architectures? - The “write last, read first” rule for strict consistency. - We shared the fries!

From brainstorming transactional applications with the @TigerBeetleDB team to drafting blog posts with Table Mountain as backdrop Cape Town is a whole vibe

Correctness doesn't compose correct subsystems connected together ≠ one correct system Without transactions, how do we maintain consistency across distributed systems? Systems engineering in practice with @TigerBeetleDB and @resonatehqio

" We wanted direct control over how things would be stored, specifically so that we could include backwards compatible metadata that would allow past versions to read the new version on disk." Federico Lorenzi on building deterministic upgrades with multiversion binaries.
TigerBeetle 0.16.61 is released, our most palindromic release ever: - Lagging replicas repair faster - A new fuzzer on the block, for MessageBus - And a metric that tracks number of metrics😅 github.com/tigerbeetle/ti…

In Cape Town with the @TigerBeetleDB team jamming on systems engineering for transactional applications: Consistency Cabaret How to ensure consistency across components without transactions?! Blog post dropping soon

After missing the first Systems Distributed in '23 (still bummed), I'm on my way to Cape Town to spend time with @jorandirkgreef & the exceptional @tigerbeetle team

IronBeetle⚡️ Ep. 087 We've extended MessageBus fuzzer to cover the batched message passing interface. Let's see how that holds up on devhub: devhub.tigerbeetle.com/?fuzzer=messag… (Full episode: youtu.be/cMPipTeUm-A)
This was one hell of a morning… 🤯

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