Machine learning engineer for recommendations

We're looking for a Senior Machine Learning Engineer to join our Search and Recommendations team, where we're building the next generation of AI-powered fashion experiences at ASOS. Our mission is to help millions of customers discover complete outfits that reflect their personal style, preferences and the latest fashion trends.

• Design, build and operate production machine learning systems that power outfit discovery and personalised fashion experiences.
• Partner with Machine Learning Scientists to deploy deep learning models and deliver meaningful customer and business outcomes.
• Deploy and optimise batch and real-time machine learning models serving millions of customers.
• Contribute to systems that power recommendations, personalisation and AI-driven fashion discovery experiences across ASOS.
• Improve system performance, reliability, observability and scalability across the machine learning lifecycle.
• Contribute to technical design decisions, architecture discussions and engineering best practices.
• Mentor and support other engineers through coaching, collaboration and knowledge sharing.
• Help strengthen technical practices across the team and the wider machine learning community at ASOS.
• Contribute to the development of shared machine learning capabilities, tools and best practices used across multiple teams.

• Experience designing, building and deploying machine learning systems in production environments.
• Strong understanding of machine learning engineering principles and modern software engineering practices.
• Hands-on experience with deep learning frameworks such as PyTorch, TensorFlow or similar.
• Experience training and optimising models using large datasets and distributed compute infrastructure.
• Experience working with recommendation systems, ranking, retrieval, personalisation or related machine learning domains.
• Knowledge of MLOps practices, including model deployment, monitoring and lifecycle management.
• Experience building reliable, observable and scalable services in cloud environments.
• Comfortable providing technical leadership and mentoring other engineers.
• Strong collaboration and communication skills, with experience working in cross-functional product teams.
• Curiosity about emerging AI technologies and the practical application of LLMs and generative AI in customer-facing products.

• Employee discount (hello ASOS discount!)
• Employee sample sales
• 25 days paid annual leave + an extra celebration day for a special moment
• Discretionary bonus scheme
• Private medical care scheme
• Flexible benefits allowance - which you can choose to take as extra cash, or use towards other benefits
• Opportunity for personalised learning and in-the-moment experiences that enable you to thrive and excel in your role