Senior Staff AI Engineer, Anti-Fraud

Responsibilities

• Develop and optimize machine learning models, specifically transformer-based architectures, for blockchain fraud detection
• Analyze on-chain data to extract meaningful features for robust anti-fraud algorithms
• Design and implement graph-based approaches using graph databases to identify complex fraud patterns
• Build intelligent agents using LangGraph or similar frameworks to automate detection workflows
• Deploy and maintain scalable AI services and models in production environments
• Collaborate with cross-functional teams including data engineers and product managers to integrate AI solutions
• Research state-of-the-art techniques in blockchain analytics and AI to stay ahead of evolving fraud tactics

Requirements

• Bachelor’s or Master’s degree in Computer Science, Data Science, Artificial Intelligence, or a related field
• Proven experience working with on-chain data and blockchain transaction structures
• Expertise in transformer models (e.g., BERT, GPT) and their practical applications
• Experience with graph databases (e.g., Neo4j, Amazon Neptune) and query languages (e.g., Cypher, Gremlin)
• Hands-on experience building AI agents, preferably using LangGraph or equivalent frameworks
• Proficiency in Python and relevant AI/ML libraries such as PyTorch, TensorFlow, or Hugging Face
• Demonstrated success in deploying AI/ML models into production via REST APIs or microservices

Preferred Qualifications

• Familiarity with blockchain ecosystems and smart contract mechanics
• Knowledge of AI techniques specifically applied to anomaly detection
• Experience with scalable data pipelines and cloud infrastructure (AWS, GCP)
• Strong problem-solving abilities in complex fraud detection scenarios

Benefits

• Competitive total compensation package
• L&D programs and education subsidies for professional growth
• Wellness and meal allowances
• Comprehensive healthcare schemes for employees and dependents
• Various team building programs and company events

About the Company

OKX is a leading crypto exchange and the developer of OKX Wallet, providing millions of users with access to crypto trading and decentralized applications. We are a global team united by our core principles: We Before Me, Do the Right Thing, and Get Things Done.