Staff/Principal Machine Learning Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff/Principal Machine Learning Engineer based in United States. As a Staff/Principal Machine Learning Engineer, you will operate at the intersection of applied machine learning and platform engineering, helping scale ML innovation across a high-impact technology environment. You will design foundational tools, infrastructure, and workflows that accelerate model development and improve predictive performance. The role spans the full machine learning lifecycle, from data preparation and feature engineering through training, evaluation, deployment, and monitoring. You will work closely with research scientists, data scientists, ML engineers, and product teams to turn complex modeling needs into scalable solutions. Your work will help automate repetitive processes, improve experimentation speed, and enable scientists to focus on high-value modeling and analysis. This is a high-influence position for an experienced ML engineer who enjoys technical leadership, cross-functional collaboration, and solving ambiguous problems at scale.