Senior Machine Learning Engineer

A senior machine learning engineer at Roku develops and improves intelligent systems supporting marketing and advertising initiatives. The role involves implementing machine learning models for customer personalisation, ad relevance, and targeted campaigns, alongside maintaining robust production systems. Candidates should possess experience in applied machine learning, data analysis, and scalable infrastructure using tools like Spark, Ray, and TensorFlow. The position requires strong coding skills in Python and Java, as well as a background in large-scale data environments such as NoSQL stores. Expertise in real-time model scoring, reinforcement learning, and model lifecycle management are essential. The successful individual will collaborate effectively across teams, adapt to evolving needs, and contribute to innovative advertising technologies.