PayPal, Inc. seeks MTS 1, Machine Learning Engineer in San Jose, CA Job Duties: Create innovative artificial intelligence (AI)/machine learning (ML) solutions that enhance personalization for PayPal users, with a focus on Al/ML algorithms supporting ranking and recommendation problems among other challenges. Write scalable, production-quality code to deploy models on company infrastructure, optimizing for performance and efficiency. Collaborate with cross-functional teams, including engineering, product, and marketing, to design, develop, and track key performance indicators for ranking and recommendation models. Conduct experiments to measure these key performance indicators as well as derive actionable insights from the data, to continually improve the technology and drive business outcomes. Write scalable production-quality code in Python, Java, Scala, or a similar programming language. Design and implement data engineering pipelines using technologies like Hive, SQL, BigQuery, or Spark. Utilize experience with Graph-based algorithms and infrastructure, experience working on feed-based ML ranking and recommendation systems, and prior experience working in a cloud-based environment such as GCP (Google Cloud Platform). Utilize hands-on experience with conducting experiments in various areas of personalization and causal inferencing. Partial telecommuting permitted from within a commutable distance.