Smadex is a leading advertising technology company founded in Barcelona in 2010 and acquired by US-based, publicly traded Entravision (NYSE: EVC) in 2018. We are one of the top mobile ad-tech companies in the world and the largest Demand Side Platform (DSP) based in Europe, with revenues over $100M and consistently growing year over year.
As a Senior Product Designer within the Product team, you will own the user experience strategy and design execution for user-facing initiatives in our product ecosystem. Working alongside the Director of Creative Products, Product Managers and Engineering, you will transform complex advertising technology into intuitive, elegant experiences that help advertisers create, optimise and measure high-performing creatives across Mobile and Connected TV.
This position is based in Barcelona (hybrid).
Role's tasks and responsibilities
Own the user experience for one or more Products, from discovery and concept development through to detailed design and delivery.
Partner closely with Product Managers and Engineering to shape product direction,



influence roadmap decisions and ensure user needs are represented throughout the product development lifecycle.
Design intuitive user journeys, workflows, interfaces and prototypes that simplify complex creative, AI and advertising technology into elegant product experiences.
Contribute to and evolve the Smadex Design System, creating scalable interaction patterns and reusable components that improve consistency across the platform.
Validate concepts through prototyping, user research, experimentation and product analytics, using data and feedback to continuously improve the user experience.
Stay at the forefront of UX, AI-assisted design, design systems and emerging technologies, helping shape the future of Creative Products at Smadex.
Role's skills and requirements
5+ years' experience designing digital products for SaaS, B2B software or technology platforms.
Strong portfolio demonstrating end-to-en

📌 Senior Product Designer (Barcelona)
🏢 Smadex
📍 Barcelona