Jobgether SRL, listed on behalf of a partner company, seeks a Machine Learning Engineer specializing in ranking and personalization, based in Spain. You will design, build, and deploy real-time personalization services powering e-commerce discovery for hundreds of millions of users. Collaborate with engineers, data scientists, and stakeholders to improve product relevance via experiments and A/B tests, with cloud experience and an autonomous, proactive mindset in a remote-first environment.