<div class="ace-line ace-line old-record-id-doxus3bYvV5DS6icDHnquWbEcNb"> <div class="ace-line ace-line old-record-id-doxus3bYvV5DS6icDHnquWbEcNb">OKX will be prioritising applicants who have a current right to work in Hong Kong, and do not require OKX's sponsorship of a visa.</div> <div class="ace-line ace-line old-record-id-doxus3bYvV5DS6icDHnquWbEcNb"><em>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.</em></div> <div class="ace-line ace-line old-record-id-doxussQumjJyp0pDHcFh7Y3bH0b"> </div> <h2 class="heading-2 ace-line old-record-id-doxusl2cgB8vs7Q3ent4HKPgocd"><strong>Who We Are</strong></h2> <div data-page-id="Kpucdjv7JoAcSZxSf7PuRl5Yscb" data-lark-html-role="root" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-Cfb8dvi9voxFkWxhNcmuJX50sZb"> <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: <em>We Before Me</em>, <em>Do the Right Thing</em>, and <em>Get Things Done</em>. 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> <div class="ace-line ace-line old-record-id-Cfb8dvi9voxFkWxhNcmuJX50sZb"> </div> </div> <div data-page-id="OvVyd3xPZo5hNhxbppju7P8isgg" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-CzjQdI1IWofbWMxmIahu6dAMsjc"> <div data-page-id="Q5McdBHqRos9a1xglGGuWZx7sgc" data-docx-has-block-data="false"> <h2 class="heading-2 ace-line old-record-id-doxusl2cgB8vs7Q3ent4HKPgocd"><strong>About The Opportunity</strong></h2> <div class="ace-line ace-line old-record-id-doxusdoP7NU01oX9Z29HojysCiF"> <div data-zone-id="0" data-line-index="0"> <p>We are looking for a Staff Mobile Security Engineer to join our Mobile Security team, where you will play a key role in identifying and mitigating security vulnerabilities across OKX's mobile applications and platforms. This is a high-ownership role at the intersection of offensive security, mobile engineering, and platform protection — you will work closely with development, operations, and compliance teams to ensure security is embedded at every layer of our mobile stack.</p> <p>You bring deep expertise in mobile application security, offensive techniques, and secure coding practices. You are also fluent in AI-assisted development and bring the discipline to build, maintain, and continuously improve your own AI engineering workflows.</p> </div> </div> <div class="ace-line ace-line old-record-id-doxusJZ5t4Jnk2dRFRKdHIJXMmb"> </div> <h2 class="heading-2 ace-line old-record-id-doxusl2cgB8vs7Q3ent4HKPgocd"><strong>What You'll Be Doing</strong></h2> <div data-page-id="R1MMdOP7Jor8rJxZjvEuEmM9s6b" data-docx-has-block-data="false"> <div data-page-id="EJEWdyXsfojXT9xHKfDuSPpSswb" data-docx-has-block-data="false"> <div data-page-id="IwA0dvhKMo2zqdxUm6sux6uxsbb" data-lark-html-role="root" data-docx-has-block-data="false"> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-Lawfdsko6oZQdQxizyqutN4Ls6f" data-list="bullet"> <div>Identify and address security vulnerabilities in mobile code, systems, and networks through manual review, automated tooling, and threat modelling.</div> </li> <li>Manage and optimise application security tools, processes, and alerts to maintain a strong security posture.</li> <li>Validate and respond to Bug Bounty submissions, triaging findings and coordinating remediation with engineering teams.</li> <li>Produce detailed security findings reports and present them to both technical and management audiences, contributing to real-world attack prevention.</li> <li>Collaborate with development teams to implement and champion secure coding practices across iOS and Android platforms.</li> <li>Apply AI tools to accelerate security research, automate vulnerability detection workflows, and improve the efficiency of threat analysis.</li> <li>Work alongside operations and compliance teams to ensure security is a consistent priority across the organisation.</li> <li>Participate in incident response and management activities.</li> <li>Stay current on the latest offensive security techniques, application security threats, and industry best practices.</li> </ul> <p> </p> </div> </div> </div> <h2 class="heading-2 ace-line old-record-id-doxusJHbXag5ngXLLiXggj1zhBg"><strong>What We Look For In You</strong></h2> <div data-page-id="R1MMdOP7Jor8rJxZjvEuEmM9s6b" data-docx-has-block-data="false"> <div data-page-id="EJEWdyXsfojXT9xHKfDuSPpSswb" data-docx-has-block-data="false"> <div data-page-id="IwA0dvhKMo2zqdxUm6sux6uxsbb" data-lark-html-role="root" data-docx-has-block-data="false"> <ul class="list-bullet1"> <li>5+ years of experience in mobile application security or off