Smadex is a leading advertising technology company founded in Barcelona in 2011 and sold to American-based and stock-listed Entravision in 2018 (NYSE:EVC). We are one of the top mobile ad-tech companies in the world and the largest Demand Side Platform (DSP) based in Europe, with our revenues over +$100M and consistently growing +40% YoY over the past years.

Our mission is to continue to improve our ad-tech platformto help our clients achieve their programmatic advertising campaign goals, and we want to give our employees a job they’ll love, where they will be challenged to improve results through real-life engineering and data analysis and where everyone’s implication has an impact.

Are you ready to be part of the new unicorn? Keep reading

Role overview
You will be an embedded scientist within our Machine Learning team, dedicated to ensuring the peak performance and stability of our core models (Gradient Boosting, DNN) within a high-frequency, complex auction ecosystem.



This role is for a deeply analytical individual who seeks to understand systems at a fundamental level and drive measurable improvements in production performance.

Responsibilities
- Conduct in-depth analysis of model behavior in the live auctioned environment
- Identify and propose architectural and feature enhancements to resolve non-optimal performance at the system level
- Collaborate on the development and automation of model performance monitoring and interpretability tooling

What you need to have:
- 5+ years of relevant experience in Data science / Machine Learning positions
- Background in Mathematics, Physics, Computer Science or Data Science.
- Proficiency in Python, SQL, Statistics
- Possesses excellent communication skills both verbal and written
- Fluency in English

Extra points for:
- )
- Knowledge of Game Theory, Statistical Physics, Bayesian Inference

Reward package:
- Integrate a highly motivated and young team.
- Great compensation package.
- Top location at the heart of Bar

📌 Machine Learning Senior Engineer (Barcelona)
🏢 Smadex Slu
📍 Barcelona