<h2><strong>Who We Are</strong></h2> <p>At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. </p> <p>OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves.</p> <p>Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er.</p> <p>OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.</p> <div data-page-id="FPHddsA84o4bDNxtGyxlDsvmgpe" data-lark-html-role="root" data-docx-has-block-data="false"> </div> <div data-page-id="DEWydktFLo4ARlxtqUuu9DX4sAd" data-lark-html-role="root" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-Vclfd4PL7opuBCxw8PXupTossVg"> <div data-page-id="Rc93d2z8voh9dTx9FzOl0gXJgTh" data-lark-html-role="root" data-docx-has-block-data="false"> <div data-page-id="SkSkdJLw9o5015xcvPmlkI80gyc" data-lark-html-role="root" data-docx-has-block-data="false"> <h2 class="heading-2 ace-line old-record-id-doxlg9MqqHibzH8fTnm6mzaceag">About the Team</h2> <div class="ace-line ace-line old-record-id-doxlgjHwsai4tb3eabWaEXHAphf">We sit on the front lines of OKX's security and compliance mission. Our charter is to build the flexible, scalable, and intelligent AI systems that detect and prevent identity fraud, account takeover, and large-scale organized abuse — in real time and at the scale of a global financial platform. We own the core identity-risk capabilities that decide, millions of times a day, whether an account can be trusted: identity trust signals, behavioral risk modeling, relationship and cluster intelligence, and face, liveness and document verification. We work shoulder-to-shoulder with Product, Risk, Compliance, and Engineering to turn the hardest adversarial problems in crypto into production-grade defenses that protect good users and the open financial system.</div> <h2 class="heading-2 ace-line old-record-id-doxlgPtEHX2oqvwdmfv2HDwf9Pb">About the Role</h2> <div class="ace-line ace-line old-record-id-doxlg8dNh9CiKc1sPEr4TJjAx5m">We are looking for a Senior AI Engineer to design, build, and own key identity-risk and trust models at OKX. You will build models that combine identity verification results, device and geo data, and user behavior into trust and risk signals, and use graph and clustering methods to uncover organized, industrialized fraud. This is an end-to-end, research-to-production role: you will own algorithms in your domain and ship models into real-money, high-risk, large-scale production environments.</div> <div class="ace-line ace-line old-record-id-doxlgY5dMMKuKbZdNvxanjWnOwc">You will be a hands-on technical contributor who works closely with Product, Risk, and Compliance, and who helps raise the technical bar of the team. Your domains span:</div> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-doxlguVjLDz2341Y9CZgNzrX5gc" data-list="bullet"> <div><strong>Identity trust & risk modeling</strong> — fusing verification scores, device, geo, and behavioral data into identity-quality and trust signals.</div> </li> <li class="ace-line ace-line old-record-id-doxlgKIZcjlFPFEhUv4YoqYeBpg" data-list="bullet"> <div><strong>Cluster & relationship intelligence</strong> — graph and clustering methods to identify account farms, mass registration, and coordinated attacks.</div> </li> <li class="ace-line ace-line old-record-id-doxlgvj7HEFUkl7iHrpgQKZHg6e" data-list="bullet"> <div><strong>Behavioral risk modeling</strong> — behavioral features and sequence models for account takeover and abnormal-session detection.</div> </li> <li class="ace-line ace-line old-record-id-doxlgUckHHuGrVZL9S4u9aoqcud" data-list="bullet"> <div><strong>Biometric & multimodal signals</strong> — face embeddings, liveness/anti-spoofing, DeepFake and injection defense, document forgery and AIGC detection, used as inputs to identity trust and the risk layer.</div> </li> <li class="ace-line ace-line old-record-id-doxlgf8EKMxsOqZegJLpjkqYzCe" data-list="bullet"> <div><strong>AI agents</strong> — applying agentic AI to scale investigation, detection, and operational defense.</div> </li> </ul> <h2 class="heading-2 ace-line old-record-id-doxlgz4uFJ1OvFlpMGanHPEkFbf">What You'll Be Doing</h2> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-doxlgHIlIAuV0z7yYBJqEVqAgBe" data-list="bullet"> <div><strong>Build identity trust & risk models:</strong> Design and ship coarse-to-fine risk models that fuse face/liveness/document verification scores, device, IP and geo signals, and behavioral data, for high-concurrency real-time decisioning.</div> </li> <li class="ace-line ace-line old-record-id-doxlgPRewtBoL0Z4RGi0Be3IgPe" data-list="bullet"> <div><strong>Uncover organized </strong><strong>fraud</strong><strong> with graph & clustering:</strong> Build entity graphs across accounts, devices, faces, documents and templates, and apply community detection, clustering, and GNN methods to detect fraud rings and large-scale abuse.</div> </li> &l