Senior backend developer - Tech Lead

Our client is a global leader in legal research technology, providing access to one of the most comprehensive collections of legal information worldwide. Through advanced AI and data analytics, we're transforming how legal professionals access, analyze, and use legal data-faster, smarter, and at scale. We are looking for Mid Level (+3 years of strong experience) and Senior (+5 years of strong experience) profiles . The candidates need to be located (or open to relocation) in Madrid or Barcelona and open to having a hybrid working modality. Design, develop, and productionize scalable systems using technologies such as Python and Flask Collaborate with business stakeholders, engineers, and content teams to identify and deliver high-impact AI-driven products and services Implement comprehensive monitoring, testing, and auditing processes to ensure system quality and reliability Adhere to best practices in model and data governance , including ethics and compliance standards Bachelor's or

Master's degree in Computer Science , Mathematics , or a related technical field ~5+ years of experience developing machine learning applications in commercial or research settings ~ Skilled in organizing and analyzing complex datasets to extract insights ~ Proficient in Python , with experience writing and maintaining unit tests ~ Familiar with version control systems , such as Git (and optionally Graphite) ~ Hands-on experience using Docker for development and deployment Portfolio projects Java knowledge Machine learning expertise (NLP ) Flexible and friendly work culture Hybrid working modality from Madrid or Barcelona Projects with real-world impact in the legal tech space Screening call with Tech Lead Step 3: Test Home