How to Apply for Senior AI Applied Software Engineer in Spain 2026: Eligibility, Last Date & Preparation Guide

We are seeking a talented Senior AI Applied Software Engineer to join our growing tech team in Madrid. This role is critical for developing and implementing advanced, production-grade AI solutions that power our core product features. You will be responsible for the full lifecycle of AI model deployment, from initial research and prototyping using modern ML frameworks (like PyTorch or TensorFlow) to robust integration into scalable backend services. Key responsibilities include optimizing model performance, ensuring data pipeline integrity, and collaborating with cross-functional teams to translate complex business problems into functional AI products. Ideal candidates possess a strong background in both software engineering best practices and applied machine learning techniques. A proven ability to write clean, efficient code and deploy models reliably in cloud environments is highly valued. This guide explains exactly how to apply for this workatbackbase post in Spain, the important dates, the test pattern, and a preparation strategy to score well.