Arthur Stevenson

Arthur Stevenson Machine Learning Infrastructure Engineer | Production LLM Pipelines, Distributed Processing, Ray/Polars/DuckDB, Performance Optimization Curitiba, Paraná, Brazil (BR) 391 connections • 391 followers About I’m a Machine Learning Engineer focused on large-scale, production ML systems, with an… Total Experience: 6 years and 3 months Experience Machine Learning Engineer - Nubank(https://www.linkedin.com/company/nubank) (Current) Jan 2025 - Present (1 year and 6 months) in São Paulo, Brazil - Optimize the machine learning pipelines with Ray, Pandas, and Polars, accelerating executions by up to 3.2x and generating an estimated annual savings of US 100,000. - Develop MLOp solutions with MLflow, Docker, Kubernetes, Terraform, and Dagster, applying best practices of automation, versioning, and scalability in the cloud (GCP). Implement an infrastructure in GCP (BigQuery, Anyscale) in order to support scalable pipelines, ETL, and big data. - Lead the development in Python, run automated testing and reusable repositories, while also promoting standardization, modularity, and reproducibility. - Create dashboards for monitoring and benchmarking of models and pipelines performance with a focus on reliability. - Do profiling and performance analysis with Py-spy, promoting improvements in runtime and features. - Apply security, compliance, IAM, and traceability practices, ensuring governance in regulated environments. - Collaborate with agile and multidisciplinary Scrum squads, aligning technical decisions with ethical AI and privacy by design principles in models such as credit scoring. Show less Department: Engineering and Technical • Level: Specialist Nubank (NU) is a Financial Services company. Nubank is a company that provides financial services and solutions. They offer a range of credit cards, including black cards, ultraviolet cards, and an app for organizing money. They prioritize security and provide complete support to ensure the