Portrait of Stelios Gisdakis

Stockholm · GR · EN · SV · FR

Stylianos
Gisdakis

Head of AI at Filed. I've spent the last decade leading data, ML, and platform teams in fintech — Visa, Tink, Anyfin, Spotify, Klarna. KTH PhD before that.

I lead the AI organisation at Filed.

I've spent most of my career in fintech, usually at the point where data and ML stop being a side project and start running the company. Klarna was where I first saw that up close — building credit-risk models when getting one wrong was an actual P&L event.

I joined Anyfin as the founding data person and stayed long enough to grow the team and the product. After Anyfin came Tink, where I ran data and analytics through the Visa acquisition. At Visa I moved into platform — the open-banking infrastructure thousands of banks plug into. There was a year at Spotify in between, on personalisation, which felt like a different planet.

Now I'm at Filed, building the AI organisation. Most days I'm thinking about the same thing I was thinking about ten years ago: why models that look great in a notebook fall apart in production. The answer is almost never the model.

PhD from KTH, in electrical engineering.

Selected roles.

  1. 2025 — Present

    Head of AI at Filed

    Running the AI org. Building the platform, setting research direction, putting models in front of finance teams.

  2. 2024 — 2025

    Senior Director, Core Platform at Visa

    Led core platform across Visa Global Open Banking — the multi-region systems banks and fintechs in Europe plug into. Reliability, scale, developer platform, engineering leadership.

  3. 2023 — 2024

    Director, Data & Analytics at Tink

    Ran data and analytics for the open-banking product. Stayed through the Visa acquisition.

  4. 2018 — 2023

    Head of Data Science at Anyfin

    First data hire. Built the team that owned credit risk and pricing as the company grew.

  5. 2017 — 2018

    Senior Data Scientist at Spotify

    Personalisation and experimentation on the consumer product.

  6. 2016 — 2017

    Data Scientist · Team Lead at Klarna

    ML models for credit risk and fraud on the consumer credit product.

  7. 2011 — 2016

    PhD, Electrical Engineering at KTH Royal Institute of Technology

    Networked systems security — ML for intrusion and fraud detection, identity and credential management for mobile and vehicular systems.

gisdakis.s@gmail.com LinkedIn