Senior Machine Learning Engineer

A senior machine learning engineer at Roku will develop and improve advanced machine learning models for marketing and advertising use cases, including personalisation and targeting optimisation. The role involves working with large-scale data analysis systems like Spark and Ray, and creating productionised recommendation engines, inference services, and model management platforms. Candidates should possess strong software development skills in Python and Java, with experience in distributed frameworks such as Spark, TensorFlow, or Ray. The position requires a background in applied machine learning, preferably within recommendations or ad-tech environments, and academic credentials in computer science, statistics, or related fields. Effective communication and collaboration with cross-disciplinary teams are essential for success in this role.