Staff Software Engineer, Backend

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Software Engineer, Backend based in Spain.

This is a high-impact backend engineering role focused on building and scaling developer infrastructure that powers integrations between applications and the real world.
You will own critical backend systems, APIs, and services from initial concept through production and ongoing improvement.
The role offers significant influence over technical direction, product strategy, and the evolution of the developer experience.
You will work closely with developer customers to understand integration challenges and turn them into practical, scalable solutions.
As a senior technical contributor, you will help drive performance, reliability, scalability, and engineering quality across the platform.
You will also contribute to open-source development and collaborate with a highly autonomous, distributed engineering team.
This opportunity is ideal for an experienced backend engineer who combines deep technical expertise with strong product judgment and developer empathy.