Smadex is a performance advertising engine for mobile apps, enabling the world's leading marketers to grow across Mobile and Connected TV (CTV). Powered by AI models trained on real campaign outcomes, Smadex delivers profitable growth at scale. Headquartered in Barcelona, with teams across the Americas, EMEA, and APAC, Smadex is a business unit of Entravision (NYSE: EVC).
Our mission is to continue to improve our ad-tech platform, especially the core of it, our algorithms, to help our clients achieve their programmatic advertising campaign goals. 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!
Ad-tech is one of the most demanding environments for machine learning. At its core, our DSP operates as an ultra-low-latency recommender system, matching the right ad to the right user in milliseconds. You will be operating at massive scale under strict latency constraints, solving unique modeling challenges that aren't even covered in current scientific literature.
As a Data Scientist embedded within our Machine Learning team, your mission is to bridge the gap between theoretical model design and real-world production reality. You will be the analytical anchor dedicated to ensuring the performance, interpretability and stability of our core Deep Neural Networks models within our high-frequency, complex auction ecosystem with millions of ad requests processed every second.
We are looking for a deeply analytical individual with very strong ML expertise—someone who isn't satisfied with "it works," but needs to understand the system at a fundamental level. You will apply scientific rigor to drive measurable improvements in our live bidding performance.
Please note that we do NOT provide VISA sponsorship. Candidates without a legal permit to work in Spain won't be considered.

Smadex is a Mobile Growth Platform that powers performance, direct response, and brand advertising campaigns across in-app, CTV, and mobile web. With transparency and contextual targeting at its core, customers can rely on Smadex as a trusted partner to run privacy-centric advertising campaigns with optimized creative strategies to deliver performance. Smadex scales campaigns with customizable machine-learning algorithms - fed by a multitude of contextual signals and first-party data to find audiences that resonate and convert for your app, game, brand, or offer. Smadex is focused on helping customers unlock performance and scale in a privacy-compliant manner to build long-term sustainable value.
Advertisers can access global consumers on the highest quality brand safe and viewable inventory at scale and capture attention using strong and engaging ad formats to drive performance sales and brand metrics. Smadex partners with the leading third-party platforms to provide the most innovative solutions and independent measurement.
Our open platform can easily plug and play with any new external partners. Smadex is a technology company led by engineering and data science, working with agencies and direct clients across the globe.
Smadex is a business unit of Entravision Communications (NYSE: EVC)