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OKX

Venture capital for blockchain startups

Director Model Risk - AI & Fraud

Quantitative RiskUpdated on Nov 5
Full-timeSan Jose, CA, USAIn-person

About the Job

Requirements

  • 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.
  • 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.

Responsibilities

  • 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.

Desired Qualifications

  • Experience establishing validation frameworks, methodologies, or capabilities in settings where they did not previously exist.
  • 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.

About the Company

OKX

Venture capital for blockchain startups

OKX Ventures acts as the investment arm of the OKX cryptocurrency exchange, funding and supporting blockchain, DeFi, and Web3 projects. It invests across a wide range of areas—from infrastructure and middleware to applications and games—aiming to strengthen the crypto ecosystem. The firm provides capital and access to OKX’s network of partners and advisors to help portfolio companies grow and succeed. Notable holdings include Polygon, Solana, and Avalanche, reflecting a strategy focused on projects with potential to impact the crypto industry at large. OKX Ventures differentiates itself through its crypto-native perspective, extensive industry network, and active involvement in portfolio development, rather than just providing funding. Its goal is to identify promising projects and help them scale, contributing to a more robust and innovative blockchain ecosystem.

Company size
5,001-10,000
Company stage
Not listed
Total funding
$1.1B
Headquarters
Singapore, Singapore
Founded
2017

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