Senior Backend Engineer - Node.js, GraphQL & REST APIs

Kake, based in Valencia, is seeking a Senior Software Engineer with a strong backend focus and some frontend experience. You will stabilize and extend an existing legacy system during a critical growth period while working on internal tools and a marketplace mobile app.

Adequate candidates will have 5+ years of engineering experience with expertise in Node.js, REST, and GraphQL APIs. The role demands quick self-onboarding to deliver impactful improvements in a fast-paced, evolving environment.