About US:
At Leadtech, we’ve been redefining digital businesses since 2009, creating innovative online solutions that reach millions of users every month. With a diverse team of over 700 members from 23+ nationalities, we’re united by a passion for creativity and collaboration.

We specialize in delivering user-centric experiences across web and mobile platforms, where people can connect with our products like never before.

We’re proud of our general reach and committed to fostering an inclusive workplace where every individual contributes to our shared vision of bringing cutting-edge projects to life. Learn more about our journey and mission on our page

About the Role:
We’re looking for a MarTech Full-Stack Developer to join our Marketing Technology & AdTech team.

This is not the kind of “full-stack” role where you’ll spend your life centering buttons or debating border-radius values for three sprints. You’ll be working at the intersection of engineering, attribution, internal tooling, and growth — building the systems that make campaign measurement reliable,



data flows usable, and marketing teams less dependent on guesswork.

You’ll help us maintain and evolve the technical backbone behind tracking, postbacks, schemas, integrations, and internal tools. That includes working on our internal CRM/tooling, improving how marketing teams operate, and making sure data moves where it should, when it should, and in the format it should.

You’ll collaborate closely with performance marketers, product owners, developers, and data stakeholders, acting as a bridge between business needs and technical implementation.

And just so we’re clear: we don’t really care what you studied or where. Computer Science, Physics, Philosophy, self-taught, bootcamp, or “learned by breaking production and fixing it later” — all valid.
We care about what you can do, how you think, and how you take ownership.

Also: if you use AI to move faster, think better, document clearer, or automate borin

📌 Martech Full Stack Developer (Barcelona)
🏢 Leadtech
📍 Barcelona