Security Engineer (Data & Endpoint Security)

Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. 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. 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. 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. About the Opportunity Job Responsibilities Data Security (Optional Focus Area) * Develop and enhance enterprise data security detection capabilities, including but not limited to DLP, sensitive data identification, data encryption/decryption, and data masking. * Continuously validate and optimize existing data security rules, models, and detection strategies to improve coverage and accuracy. * Participate in data security incident identification, response, investigation, and forensics. * Build and maintain data asset maps; use graph-based techniques to trace data flows and identify risks of sensitive data exfiltration. * Use enterprise data platforms to perform risk analytics, anomaly detection, and data-focused threat modeling. Endpoint / Host Security (Optional Focus Area) * Build and improve host-based detection capabilities, including malware analysis, intrusion detection, threat modeling, and host behavior baseline modeling across office and production environments. * Continuously refine host security policies and detection models to improve detection performance and reduce false positives. * Handle host security ale