About the company
About OKX OKX is a leading crypto trading app, and a Web3 ecosystem. Trusted by more than 20 million global customers in over 180 international markets, OKX is known for being the fastest and most reliable crypto trading app of choice for investors and professional traders globally. Our Singapore office is a Product and Engineering hub and we are in the progress of expanding our teams in Singapore for the continuous growth of our global business. We build and maintain core trading platform with millions of daily active users. Design, Product and Engineering teams work cross-functionally to identify customer needs, and ship high-quality new features through fast iterations.
Job Summary
What You’ll Be Doing
📍Serve as the subject matter expert for blockchain security, leading detailed security analysis of smart contract source code (Solidity, Rust) and technical audits of the entire ecosystem securing our core crypto-asset operations, including smart contracts, L1/L2 protocols, and wallet infrastructure. 📍Leverage your deep expertise in blockchain security to both lead our digital asset assurance program and contribute to a wide range of audits across product security (AppSec) and AI applications. 📍Contribute to the annual risk-based audit plan by identifying emerging blockchain security risks and scoping potential audit projects. 📍Collaborate effectively with Engineering, Product, and security stakeholders to communicate audit findings, provide value-add recommendations, and monitor remediation plans. 📍Develop and maintain expert knowledge of the evolving crypto threat landscape and blockchain security best practices to ensure audit approaches remain current and effective.
What We Look For In You
📍We're looking for a hands-on, deeply technical auditor who is a recognized subject matter expert in Blockchain Security. You have a passion for protocol-level security and a proven ability to identify vulnerabilities in complex, crypto-native systems. You thrive on securing the core technology of the decentralized future while also applying your skills to the broader software security landscape. 📍Crypto-Native Expertise & Experience: Expert-level understanding of blockchain technology is required, including distributed ledgers, consensus mechanisms, cryptography, and smart contracts. Prior hands-on experience within a crypto exchange, custody, or DeFi environment is essential. 📍Digital Asset & Blockchain Security (SME): Demonstrable ability to execute technical audits of the technologies that secure crypto-assets, including Smart Contracts (Solidity, Rust), L1/L2 Protocols, and Wallet Infrastructure (HSMs, MPC). 📍Critical Thinking for Complex Environments: A proven capacity to analyze novel technical and control environments unique to crypto, identify intricate root causes, and propose effective, context-specific solutions.
The future of finance is here — whether you’re interested in blockchain, cryptocurrency, or remote web3 jobs, there’s a perfect role waiting for you.



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