I am the Head of Developer Relations at DuckDB Labs, the company behind DuckDB. I lead the work on the documentation and the blog, give talks and perform interesting benchmark experiments. I triage the incoming tickets, run social media, and work on the branding of the DuckDB universe (DuckDB, DuckCon, DuckDB Labs and DuckLake). I also co-organize DuckCons and DuckDB meetups.
Outside of my day job, I am a contributor and board member of the GDC, the Graph Data Council (formerly known as LDBC), is a non-profit organization that promotes the use of graph data management technology and defines TPC-style graph database benchmarks. I have a COO-style role in the organization and also oversee benchmark audits.
Previously, I spent a decade in academia. I obtained my PhD in software engineering at the Critical Systems Research Group of TU Budapest, followed by a 3-year stint as a post-doctoral researcher at the Database Architectures group of CWI Amsterdam. My research focused on graph queries, graph analytics, and benchmarks.
Along with updates on what I’ve been up to, I also share some notes on this site.
Links
GitHub – Twitter – LinkedIn – Stack Overflow – Google Scholar – DBLP
News
- February: I will give a talk at FOSDEM’s Software Performance Developer Room titled “Database benchmarks: Lessons learned from running a benchmark standard organization”.
- January: I am co-organizing the first DuckDB Developer Meeting in Amsterdam.
- November: I launched the new branding and site design of Graph Data Council (GDC), formerly known as the Linked Data Benchmark Council (LDBC). Now it’s also available under
ldbc.org,graphdatacouncil.organdgraphdata.io. - November: I gave a talk about DuckDB at the Compass AI & Data Summit in Budapest, titled DuckDB: Big Data Unplugged.
- November: I gave a talk about DuckDB and DuckLake at Øredev 2025 in Malmö.
- September: I organized the third DuckDB Amsterdam Meetup.
- September: I co-authored the paper “The LDBC Financial Benchmark: Transaction Workload”, which got the best paper runner-up award at VLDB 2025’s benchmark track.
- September: I co-organized the DuckDB in Science meetup and the 20th LDBC TUC meeting in London.
- June: I co-organized the DuckDB Berlin Meetup. The event had 100 people on site, making it the largest DuckDB meetup so far!
- June: I presented DuckDB and DuckLake at the Budapest Data+ML Forum.
- May: DuckDB Labs released DuckLake, a new lakehouse format. I took a leading role in creating the launch strategy of the new format.
- April: I gave the closing keynote of PyCon Lithuania’s Data Day. See the recording.
- March: I presented “Graph databases: Where theory meets practice” at the Simonyi Conference, organized by my old alma mater, BME. See the Hungarian recording of the presentation and the English translation of my slide deck.
- February: I co-organized the second DuckDB Amsterdam Meetup.
- February: I gave a talk in the Data Analytics developer room of the FOSDEM conference in Brussels. See the slides and the recording.
- January: I was a co-organizer of DuckCon #6 in Amsterdam. This was the largest DuckCon so far and the first one that we streamed online.
For older items, see the news archive.