Senior Staff AI Engineer, Anti-Fraud

• Develop and optimize machine learning models, with a focus on transformer-based architectures, tailored for fraud detection in blockchain data.
• Interpret and analyze on-chain data to extract meaningful features for building robust anti-fraud algorithms.
• Design and implement graph-based approaches using graph databases and graph query languages to identify complex fraud patterns.
• Build intelligent agents using LangGraph or similar frameworks to automate detection workflows and decision-making processes.
• Deploy and maintain AI services and models in production environments, ensuring scalability, reliability, and high performance.
• Collaborate with data engineers, product managers, and software engineers to integrate AI solutions into production workflows.
• Research and apply state-of-the-art techniques in fraud detection, blockchain analytics, and AI.
• Monitor model and service performance, troubleshoot issues, and implement enhancements in response to evolving fraud tactics.
  
  

• 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 a strong understanding of 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 graph query languages (e.g., Cypher, Gremlin).
• Hands-on experience building AI agents, preferably using LangGraph or equivalent frameworks.
• Demonstrated success in deploying AI/ML models and services in production environments (e.g., via REST APIs, microservices, or cloud platforms).
• Proficiency in Python and relevant AI/ML libraries (e.g., PyTorch, TensorFlow, Hugging Face).
  
  

• Familiarity with blockchain ecosystems and smart contract mechanics.
• Knowledge of AI techniques in anomaly detection.
• Experience with scalable data pipelines and cloud infrastructure (e.g., AWS, GCP).
• Strong problem-solving abilities and critical thinking skills in fraud detection scenarios.
• Excellent communication skills and ability to work in a collaborative, cross-functional environment.
  
  

• Competitive total compensation package
• L&D programs and Education subsidy for employees' growth and development
• Various team building programs and company events
• Wellness and meal allowances
• Comprehensive healthcare schemes for employees and dependants
• More that we love to tell you along the process!

Please note that Hong Kong is a group-level service hub, and OKX does not carry on a business of operating a virtual asset trading platform in Hong Kong.