Senior Staff AI Engineer, Anti-Fraud
OKX is a leading global cryptocurrency exchange offering a wide range of trading services, including spot and derivatives trading, as well as Web3 solutions.
Maintainer signals as of 8/12/2026
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About OKX
OKX is a global cryptocurrency exchange known for its trading services and financial products. The platform offers a wide range of features, including spot and derivatives trading, staking services, and a user-friendly interface suitable for both beginners and experienced traders.
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Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You develop and optimize transformer-based machine learning models for blockchain fraud detection, analyze on-chain data, design graph-based fraud detection approaches, build AI agents, deploy scalable AI services, collaborate across functions, research fraud-detection techniques, and monitor and improve production performance.
Requirements
- Bachelor's or Master's degree in Computer Science, Data Science, Artificial Intelligence, or a related field
- Experience working with on-chain data
- Understanding of blockchain transaction structures
- Expertise in transformer models such as BERT or GPT
- Experience with graph databases such as Neo4j or Amazon Neptune
- Experience with graph query languages such as Cypher or Gremlin
- Experience building AI agents
- Experience deploying AI/ML models and services in production
- Proficiency in Python
- Experience with PyTorch, TensorFlow, or Hugging Face
- Familiarity with blockchain ecosystems and smart contract mechanics
- Knowledge of anomaly detection
- Experience with scalable data pipelines and cloud infrastructure
Responsibilities
- Develop and optimize transformer-based machine learning models for blockchain fraud detection
- Analyze on-chain data to extract features for anti-fraud algorithms
- Design graph-based approaches to identify complex fraud patterns
- Build AI agents using LangGraph or similar frameworks
- Deploy and maintain scalable AI services and models in production
- Collaborate with data engineers, product managers, and software engineers
- Research and apply techniques in fraud detection, blockchain analytics, and AI
- Monitor model and service performance
- Troubleshoot issues and implement enhancements
Benefits
- Competitive total compensation package
- L&D programs
- Education subsidy
- Team building programs
- Company events
- Wellness allowances
- Meal allowances
- Comprehensive healthcare schemes for employees and dependants