Data Scientist

Your Role

As our Marketing Engineer, you sit at the intersection of data science and paid media. You'll consolidate scattered customer signals into a single source of truth, build ML models that score leads by their real value, and feed those insights back into our ad platforms - making our marketing smarter than the platforms' out-of-the-box optimization. It's a hands-on, build-from-scratch role with full ownership over both the models and the impact they create.

What to expect

• Build our predictive CLTV modelling from the ground up: consolidate customer signals into a database, develop ML models on user behavior to score leads
• Feed those scores back into the ad platforms (Meta, Google, and more) to sharpen targeting and bidding
• Own tracking and conversion infrastructure: Tag Manager, Search Console, offline uploads, server-side setups
• Turn raw behavioral data into measurable performance impact
• Work closely with the Performance Marketing team and Go-to-Market managers

Who We're Looking For

• You're comfortable building data pipelines and ML models - Python, SQL, and modern ML tooling are second nature
• You understand paid media well enough to know what signals matter and how platforms consume them
• Experience with attribution, conversion APIs, or offline conversion uploads is a strong plus
• Hardworking, analytical, structured, and a natural fit for a direct, ambitious culture
• Strong English skills, as English is our company language
• German skills are a big plus

What We Offer

• Competitive Salary: €65.000-€130.000
• Equity - you build it, you should own a piece of it.
• Food & drinks - at our Vienna office, lunch and dinner are on us (plus all the drinks your heart desires, and yes, we have protein bars and vitamins too).
• Relocation bonus (if you still need to move to Vienna)
• Equipment of your choice - whatever makes you happy.
• Regular team offsites.

Hiring Process

• 15 min intro call
• 30 min skill interview
• 15 min Culture fit with the founders

https://www.fonio.ai/en/careers/?ashby_location_id=18386194-ff-51d91e785ada&ashby_jid=38f9b87f-319a-4a3d-ac02-5fd16aad318d#open-roles

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