Senior Data Scientist

About the role

What We're Looking For We're looking for a Senior Data Scientist to help build the intelligence layer behind ARQ's financial products. You'll work on some of our most important risk and financial crime challenges, developing machine learning models that help us detect fraud, prevent losses, and make better decisions at scale. This is a highly impactful role where you'll take problems from idea to production — partnering with Product, Engineering, and Operations teams to turn large-scale datasets into models that directly influence customer and business outcomes. You'll join a fast-growing team helping build the future of financial services for more than 2 million customers across the Americas. What You'll Be Doing Design, build, and deploy machine learning models that solve real-world financial crime and risk challenges. Work on problems such as fraud detection, chargeback prediction, anomaly detection, identity verification, and transaction monitoring. Transform ambiguous business problems into measurable ML solutions. Partner closely with Product and Operations teams to define requirements, success metrics, and decision frameworks. Analyse large datasets to identify patterns, opp