Senior Machine Learning Engineer

Lyst, a leading global fashion shopping platform founded in 2010, is seeking a Senior Machine Learning Engineer to join their Product Listings team. The platform serves over 160M shoppers annually, curating products from 27,000 brands and stores. Recently joining forces with Zozo in 2025, Lyst is accelerating its vision to transform fashion shopping through AI and technology.

The role combines deep data science expertise with production-grade ML engineering, focusing on optimizing advertising through automation. You'll be instrumental in performance marketing automation, working with Python and standard ML toolkits in an AWS environment. The position involves the full ML lifecycle, from data exploration to model deployment, with a strong emphasis on clean, documented code.

As a Senior ML Engineer, you'll collaborate with marketers, data analysts, and engineers to build predictive models for ROAS prediction, lifecycle-aware bidding, and grouping optimization. The role requires strong technical skills in Python and SQL, experience with production ML systems, and familiarity with advertising metrics.

The company offers an attractive hybrid working model, comprehensive benefits including private healthcare, generous holiday allowance, and a unique clothing allowance for using the Lyst platform. They maintain a strong focus on continuous learning with a £1,000 annual training budget and foster an inclusive culture with regular social events and interest-based groups.

This position represents an opportunity to make a significant impact on how Lyst scales its advertising efforts while working with cutting-edge ML technologies in the fashion e-commerce space. The role combines technical excellence with business impact, making it ideal for someone passionate about applying ML to real-world commercial challenges.