description

Hi, I’m Florents! I was born 33 years ago. After living the first five years of my life in Albania, my family moved to Salamis Island, Greece, where I grew up. I’m based in Greece now.

I build data tools for a living. My interests lie somewhere between database engineering, AI, web crawling, and data journalism. Nowadays, I mostly write code in Python and C, while I try to find excuses to write more Rust and Go.

diofanti.org

If you’re a Greek journalist, politician, or concerned citizen, you may have come across diofanti.org, a free and public tool I’ve created that tracks government spending in Greece. Here’s a demo video showcasing it.

Software

My open-source software projects are available on
github.com/Florens-Tselai.

Postgres Extensions

  • pgllm: pgllm: Use LLMs in Postgres
  • pgPDF: pgPDF: Query PDFs from Postgres
  • jsonb_apply: Postgres JSON with a functional twist
  • pgJQ: A Postgres extension that brings jq to Postgres and SQL
  • vasco: MINE-statistics extension for Postgres. Correlation discovery made easy.
  • cookiecutter-postgres-extension: A cookiecutter template for a Postgres extension

SQLite Extensions

  • tsellm: tsellm: Use LLMs in SQLite and DuckDB
  • liteJQ: jq extension for SQLite.
  • WarcDB: A tool that serves crawl data as SQLite databases.

Professional Experience

I have research, working, and leadership experience across the entire data supply chain: from modeling and applying machine learning algorithms to multiple domains to engineering and managing production deployments of big data pipelines.

Some companies I have worked for or consulted for include BCG, Deutsche Telekom, BASF, GfK, XING, BMW, and Advantest among others.

Press

When I have something interesting to say, I write opinion pieces in the Greek press:

  • Η τεχνητή νοημοσύνη χρειάζεται ανοιχτά μοντέλα naftemporiki.gr
  • Για ποια έλλειψη προσωπικού μιλάμε; naftemporiki.gr
  • Διοφάντη: Διαύγεια για ανθρώπους naftemporiki.gr
  • Γραφή: Το κρυφό όπλο της τηλεργασίας moneyreview.gr
  • Πόσοι κατάλαβαν την ιστορία με την GameStop; moneyreview.gr

Sometimes I give interviews too:

  • Η “Διοφάντη” αποκαλύπτει “πού πάνε τα λεφτά” radiome.gr
  • Φλόρεντς Τσελάι: Το Διαδίκτυο δεν είναι μόνο τρεις - τέσσερις εφαρμογές kathimerini.gr
  • Η πιο πολύτιμη «πρώτη ύλη» σε επίπεδο αγοράς και κάλπης naftemporiki.gr
  • H προβολή στις εκλογές του Μαΐου mixcloud.com

Interests

In my free time, I eliminate free time. In particular, I try to read as many books as possible; I’m primarily interested in strategy, history, philosophy, and politics.