We’re looking for a Full-Stack Engineer to join our team and help shape the future of contextual advertising as we continue to expand globally.

Por favor, verifique que tiene el nivel de experiencia y las cualificaciones adecuadas leyendo la descripción completa de esta ocasión a continuación.
Who We Are
At Seedtag, our goal is to lead the change in the advertising industry because we believe that effective advertising should not be at odds with users’ privacy.

Every day, our teams develop new services that reach over 200 million users worldwide with fast response times to ensure that we deliver the best user experience. We’re fully committed to the DevOps culture, where we provide the platform that our Software Developers and Data Scientists use to manage over 100 different microservices, pushing dozens of changes to production every day. All of this is built on top of Kubernetes in Google Cloud Platform and Amazon Web Services.

If you are interested in joining one of the fastest-growing scale-ups in Europe and working on massive scalability challenges, this is the place for you.





As a Full-Stack Engineer in the AdServing team, you’ll help shape two of Seedtag’s most critical tools:

-
- Our SDK, the agent embedded in 200M+ devices daily, responsible for rendering ads in real time.
- Studio Pro, the creative tool used by designers to build contextual ads across multiple formats and devices.

You’ll be working with modern, typed front-end languages (Rescript and React), building performant interfaces and reliable APIs, all while collaborating with design and backend teams to make sure everything just works.

We’re looking for someone who enjoys solving hard problems, cares about maintainable code, and is ready to make key architectural decisions as the product evolves.

Your day-to-day will include:

-
- Designing and implementing client-side features for the SDK and Studio Pro.
- Developing scalable backend APIs to support dynamic creative logic and data syn

📌 Full-Stack Engineer (Madrid)
🏢 Seedtag
📍 Madrid