Founding Software Engineer (Full Stack)

Location: Madrid, Spain (Hybrid – 3 days/week in office)

Salary: €45,000–€55,000 base

Experience: ~2+ years

About the Opportunity

We're partnering with a fast-growing technology startup that is building critical data infrastructure for a large, traditionally underserved industry.

The company has already secured commercial agreements with major enterprise customers and is entering a period of significant growth. Having proven market demand and established strong customer traction, the team is now looking to make its first full-time engineering hire to help accelerate product development and scale the platform.

This is an opportunity to join at a pivotal stage, working directly alongside an experienced founding team to shape both the product and the engineering function from the ground up.

The Role

As the first full-time engineer, you'll ...