Senior Machine Learning Engineer

Roku is seeking a Senior Machine Learning Engineer in Manchester to develop and optimise AI-driven marketing systems that enhance customer targeting and personalisation. The role involves designing and training machine learning models, working with real-time inferencing infrastructure, and building scalable ML platforms to manage model lifecycle processes. Candidates should have experience with distributed machine learning frameworks such as Spark, Ray, and TensorFlow, along with strong programming skills in Python and Java. They will collaborate with engineering, data science, and product teams on high-impact projects, employing statistical analysis, reinforcement learning, and optimisation techniques. It is essential to have applied ML experience in recommendation systems, familiarity with large-scale data environments, and a relevant degree in Computer Science or related fields. The position fosters a collaborative and fast-paced working environment, with opportunities to work on cutting-edge advertising technologies and AI applications.