Director, Model Risk — AI & Fraud

As Director of Model Risk focused on AI and Fraud at OKX, you lead independent oversight and effective challenge of fraud models used to detect, prevent, and manage fraud risk across OKX's products and customer journeys. You establish end-to-end validation of fraud models, from conceptual soundness and data review to implementation, outcomes analysis, performance monitoring, and remediation follow-up. Your portfolio covers supervised machine learning models, anomaly detection, graph and network analytics, rules-based or hybrid systems, and AI-enabled fraud applications. This is a hands-on, builder role: you will independently establish the fraud model validation capability from the ground up, personally execute validations, and play a leading role in assessing AI-enabled systems.

What you'll do

• Establish and own the independent validation framework for fraud models and AI-enabled decision systems across OKX products, covering conceptual soundness, data quality, implementation, and outcomes analysis, in line with SR 26-2 and equivalent model risk frameworks
• Assess model conceptual soundness, intended use, assumptions, and limitations
• Personally execute end-to-end model validations as the technical expert, including independently reproducing results through hands-on data analysis and code review
• Assess AI/ML and generative AI applications, including LLM-based and agentic systems, for robustness, reliability, explainability, and appropriate human oversight, applying strong applied AI evaluation expertise
• Perform ongoing monitoring review and periodic revalidation to ensure sustained model performance through changing fraud patterns and business conditions
• Provide effective challenge to model owners; communicate conclusions, limitations, and risk ratings clearly to senior management and governance forums, and track remediation through closure
• Build and continuously mature the fraud model validation capability, standards, and workflows within MRM

What you bring

• A Master's or Ph.D. in a quantitative field such as Statistics, Mathematics, Computer Science, or a related discipline, or equivalent experience
• 10+ years of quantitative, fraud risk, or model risk experience, with a recognized track record as a hands-on technical expert who personally delivers independent validations of models and decision systems
• Excellent communication and judgment, including the ability to explain quantitative findings to senior audiences and constructively challenge model owners
• Practical experience with statistical and machine learning methods; proficiency in Python and SQL; working knowledge of SR 11-7 or equivalent model risk and AI governance frameworks
• Experience with AI/ML governance and controls, including explainability, fairness, robustness, ongoing monitoring, or generative and agentic AI applications in fraud operations

Nice to have

• Experience establishing validation frameworks, methodologies, or capabilities in settings where they did not previously exist
• Strong applied AI capability: hands-on experience evaluating or building ML/LLM-based systems in production, including prompt engineering, evaluation harnesses, fine-tuning assessment, or agentic AI workflows; ability to run red-team style testing on AI applications

What we offer

• Salary range of $200,000 to $300,000, dependent on job-related knowledge, skills, experience, and market location
• Performance bonus and long-term incentives as part of the compensation package
• Comprehensive medical, financial, and other benefits
• Wellness and meal allowances
• Comprehensive healthcare schemes for employees and dependants
• Various team building programs and company events

About OKX

OKX is a leading crypto exchange and developer of OKX Wallet, giving millions access to crypto trading and decentralized applications. A trusted brand by hundreds of large institutions, OKX is backed by Proof of Reserves and operates globally with core principles of "We Before Me", "Do the Right Thing", and "Get Things Done". OKX is part of OKG, a blockchain group that brings crypto value to users worldwide through products including OKX, OKX Wallet, OKLink and more.