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Ljubljana, SI

Mark Žakelj

I train machine learning models and build the backends they run in. Most of it is plumbing.

Work

Sportradar ML engineer 2025 →
Freelance Fullstack developer 2023 →
KatalistAI ML engineer 2023 – 24

Earlier: data science at Lek-Sandoz, 2020 to 2021. Mostly Python and Java. PyTorch, Flink, Kafka, FastAPI, Postgres, Kubernetes, AWS.

Projects

openpose-extrapolation

Pose detectors drop the joints that fall outside the frame. The rest of the skeleton constrains where the missing ones should be, so there was nothing to annotate.

ConsistentFacesSD

Several characters in one image, with the same faces from image to image. Stable Diffusion and IP-Adapters, with face detection and an attribute matching step.

text_to_audio_alignment

A timestamp for every word of a transcript.

attractor_generator

De Jong attractors, plotted and colourised. Written in C.

dine.si

A booking platform for private chefs. Chat, Stripe, an admin panel.

fiddle-gateway.eu

A web platform for musicians. I rebuilt it.