Machine learning engineer in recommendation systems

We're looking for a Machine Learning Engineer to join our Search & Recommendations team, where we build the machine learning systems that help millions of customers discover products every day. From personalised recommendations and product ranking to emerging AI-powered styling experiences, our work sits at the heart of the customer journey and directly influences how customers explore and shop on ASOS.

• Designing, building and maintaining production-grade machine learning systems that power personalisation and product discovery
• Developing and improving recommender systems, ranking models and customer-facing machine learning capabilities
• Deploying models into batch and real-time environments, ensuring reliability, scalability and performance at scale
• Collaborating with Applied Scientists and Engineers to take models from experimentation into robust production systems
• Monitoring, evaluating and iterating on models using real-world customer behaviour and performance metrics
• Contributing to engineering best practices, MLOps tooling and shared machine learning platform capabilities
• Helping to improve how machine learning is developed, deployed and operated across the organisation

• Experience developing, deploying or operating machine learning solutions in production environments
• Familiarity with modern machine learning frameworks and tooling such as PyTorch, TensorFlow, XGBoost or similar technologies
• Experience training models using GPUs, or an interest in distributed computing and scalable machine learning systems
• Understanding of software engineering fundamentals, including version control, CI/CD, testing, observability and containerisation
• An appreciation of MLOps practices and the challenges of deploying machine learning systems at scale
• Strong collaboration and communication skills, with experience working across engineering, science and product disciplines
• Curiosity, adaptability and a genuine enthusiasm for learning new technologies and approaches

• Employee discount (hello ASOS discount!)
• Employee sample sales
• 25 days paid annual leave + an extra celebration day for a special moment
• Private medical care scheme
• Fixed Annual Payment in addition to your salary each year, it's just an extra thank you from us
• Opportunity for personalised learning and in-the-moment experiences that enable you to thrive and excel in your role