Marketing Engineer

We grew from $1M to $10M ARR in under 12 months and now serve 10,000+ customers.

Fonio is Europe's market leader for AI phone agents for SMBs. Now were expanding globally and into new products.

We move fast, take ownership, give direct feedback, and avoid politics and unnecessary meetings.

Join one of Europe's fastest-growing companies. 1 Marketing Engineer 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