Principal/Senior Mobile Engineer, Trading Strategies, CEX

<div class="ace-line ace-line old-record-id-doxus3bYvV5DS6icDHnquWbEcNb">OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa.</div> <div class="ace-line ace-line old-record-id-doxussQumjJyp0pDHcFh7Y3bH0b">&nbsp;</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">At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom.</div> <div class="ace-line ace-line old-record-id-Cfb8dvi9voxFkWxhNcmuJX50sZb">&nbsp;</div> <div class="ace-line ace-line old-record-id-Cfb8dvi9voxFkWxhNcmuJX50sZb">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.&nbsp;</div> <div class="ace-line ace-line old-record-id-Cfb8dvi9voxFkWxhNcmuJX50sZb">&nbsp;</div> <div class="ace-line ace-line old-record-id-Cfb8dvi9voxFkWxhNcmuJX50sZb">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.</div> <div class="ace-line ace-line old-record-id-Cfb8dvi9voxFkWxhNcmuJX50sZb">&nbsp;</div> <div class="ace-line ace-line old-record-id-Cfb8dvi9voxFkWxhNcmuJX50sZb">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.<br><br></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 Team</strong></h2> <div class="ace-line ace-line old-record-id-doxusJZ5t4Jnk2dRFRKdHIJXMmb"> <div data-lark-html-role="root"> <div data-page-id="RZi1dJQT4oV3eoxV3NklXMoAgYg" data-lark-html-role="root" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxlgHz9YM5yF1SsXpsVi5w5msh">The Trading Strategies Mobile Team owns OKX's Trading Bot and Copy Trading experiences across iOS and Android. On the Trading Bot side we build the full suite of strategy bots (Spot &amp; Futures Grid, Spot &amp; Futures DCA, Recurring Buy, Smart Portfolio, Smart Arbitrage, Signal Bot, DCD, and AI-powered bots) that let millions of users automate their trading across spot and derivatives. On the Copy Trading side we let users discover top traders and automatically mirror their positions. It's a large, high-complexity mobile surface built on a shared Rust/UniFFI core, and we're actively moving performance-critical paths to Rust so the logic is shared across platforms. We care deeply about engineering quality. A big, fast-moving codebase demands high standards for architecture, stability, and performance, so we invest consistently in review rigor, knowledge-sharing, and technical training to keep raising the bar. We're also a growth team, working closely with Product and Design to ship new strategies, improve the automated trading experience, and most recently build AI-driven bot experiences. We're at an exciting inflection point, bringing AI into both our product and our engineering workflows. If you're energized by taming complexity at scale, driving technical excellence and business impact in equal measure, and shaping how automated crypto trading works for millions, this is the team to be on.</div> </div> </div> <div data-lark-html-role="root">&nbsp;</div> </div> <h2 class="heading-2 ace-line old-record-id-doxusl2cgB8vs7Q3ent4HKPgocd"><strong>What You'll Be Doing</strong></h2> <div data-page-id="RZi1dJQT4oV3eoxV3NklXMoAgYg" data-lark-html-role="root" data-docx-has-block-data="false"> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-doxlgtpKY96aj6erQpxRs7iZeXe" data-list="bullet"> <div>Own the technical architecture and delivery of the Android/iOS Trading Bot codebase as your primary focus, while also contributing to Copy Trading as our second core surface, raising code quality, stability, and performance across both and across the flows that create, manage, copy, and follow strategies.</div> </li> <li class="ace-line ace-line old-record-id-doxlgqsMfdCzBzW8nAOEp3P0coe" data-list="bullet"> <div>Lead large-scale technical initiatives end to end, from the Kotlin/Swift-to-Rust/UniFFI migration to modularization and binary-compatibility discipline across the Trading Bot and shared-core repositories, and the work to cut crash, ANR, and startup hotspots.</div> </li> <li class="ace-line ace-line old-record-id-doxlgBOtn3FFGqkpwIt8TiRlekg" data-list="bullet"> <div>Join product requirement discussions, shape well-reasoned technical solutions, and protect product performance, stability, and user experience.</div> </li> <li class="ace-line ace-line old-record-id-doxlgm81rBYvyS3OFur1hnikIbb" data-list="bullet"> <div>Partner with product and business to drive the Trading Bot roadmap, from new strategy types to sharing, attribution, and growth features, to AI-powered bot experiences, turning technical leverage into business impact.</div> </li> <li class="ace-line ace-line old-record-id-doxlg3NIJ8rCqCgwYERnx7cemdh" data-list="bullet"> <div>Stay close to industry trends, keep refining the technical architecture, and grow the team's engineering capabilities through training and knowledge-sharing.</div> </li> <li class="ace-line ace-line old-record-id-doxlgXSU806dFRfWxOe81l9fVKd" data-list="bullet"> <div>Mentor engineers and lead by influence, lifting the whole team's technical proficiency.</div> </li> <li class="ace-line ace-line old-record-id-doxlgXSU806dFRfWxOe81l9fVKd" data-list="bullet"> <div><span class="text-only">Lead the team in exploring the integration of AI into business scenarios, driving product and technology innovation.</span></div> </li> </ul> </div> <h2 class="heading-2 ace-line old-record-id-doxusJHbXag5ngXLLiXggj1zhBg"><strong>What We Look For In You</strong></h2> <div data-page-id="RZi1dJQT4oV3eoxV3NklXMoAgYg" data-lark-html-role="root" data-docx-has-block-data="false"> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-doxlgU8rmJdgBsQf3w3WSRGuEgf" data-list="bullet"> <div><strong>Staff/Principal level Android/iOS expertise.&nbsp;</strong>8+ years building and shipping production Android/iOS apps, with deep Kotlin and a strong command of multi-module architecture, dependency and binary-compatibility constraints, and platform performance (ANR, crash, startup, memory).</div> </li> <li class="ace-line ace-line old-record-id-doxlgI7evHWN35mx8Ye1gdvLpTb" data-list="bullet"> <div><strong>A track record of leading mid to large projects end to end. </strong>You hold a high bar for architecture and engineering quality, and you've raised that bar on a large, legacy-heavy codebase with results to show for it.</div> </li> <li class="ace-line ace-line old-record-id-doxlgnnIxmziMFOA3zwA9TpdHGe" data-list="bullet"> <div><strong>Technical strategy paired with business sense. </strong>You can set technical direction and work with product to turn it into roadmap and revenue. You own outcomes, not just code.</div> </li> <li class="ace-line ace-line old-record-id-doxlg5SfvV8DaKGtvGFk8BgGL4g" data-list="bullet"> <div><strong>A trading or fintech background. </strong>Client-side experience at a crypto exchange, brokerage, or fintech app, with familiarity in core domains like order placement, market data, and asset management. Automated or algorithmic trading is a strong plus.</div> </li> <li class="ace-line ace-line old-record-id-doxlgWwqHnqkcf65gxzuIFfm57e" data-list="bullet"> <div><strong>Influence and mentorship. </strong>You make the engineers around you better through review, design guidance, and knowledge-sharing, and you build alignment across teams without leaning on authority.</div> </li> </ul> </div> <h2 class="heading-2 ace-line old-record-id-doxusKUjfoqh7QZ5RVAXhjX7gig"><strong>Nice-To-Haves</strong></h2> <div data-page-id="RZi1dJQT4oV3eoxV3NklXMoAgYg" data-lark-html-role="root" data-docx-has-block-data="false"> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-doxlghXysZW94UlH8L94XxBnYsg" data-list="bullet"> <div><strong>Cross-language or Rust experience. </strong>Rust, UniFFI/FFI, or iOS Swift/Obj-C, and comfort owning a shared cross-platform core.</div> </li> <li class="ace-line ace-line old-record-id-doxlgj7BlJcaCDd4g55tmcNTMbd" data-list="bullet"> <div><strong>Automated-trading domain depth. </strong>Hands-on with trading bots, grid or DCA strategies, perpetuals and derivatives, copy or social trading, or market-making and arbitrage, or trading in general.</div> </li> <li class="ace-line ace-line old-record-id-doxlgmkLBv8Pf7vf4jLJhCrQ0Uc" data-list="bullet"> <div><strong>AI engineering experience. </strong>LLM fundamentals, prompt engineering, RAG, or agent workflows, and an eye for bringing AI into both the product and the engineering workflow.</div> </li> <li class="ace-line ace-line old-record-id-doxlgogSslAdEMkmKUzzCtCUgOh" data-list="bullet"> <div><strong>Performance and reliability tooling. </strong>APM, tracing, and crash or ANR triage at scale.</div> </li> <li class="ace-line ace-line old-record-id-doxlgqmd82StcklOc19w9vNn33e" data-list="bullet"> <div><strong>Scaled </strong><strong>CI/CD</strong><strong>. </strong>Experience with large monorepo or multi-module release systems, such as MMR-style merge pipelines.</div> </li> <li class="ace-line ace-line old-record-id-doxlgMsx1yxPrIRfisFc6QTEbBc" data-list="bullet"> <div><strong>Client-side team leadership. </strong>You've mentored or led a client-side team and can drive cross-team collaboration and technical review.</div> </li> </ul> </div> </div> </div> <div class="ace-line ace-line old-record-id-Avh0dL0UvoHyoFxymwmuPqtAsWe"> <h2 class="heading-2 ace-line old-record-id-doxusxvzyTH4iZpRPTygm6sKzcf"><strong>Perks &amp; Benefits</strong></h2> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-doxus9Bu8Z2VOqDK5F51723OA8g" data-list="bullet"> <div>Competitive total compensation package</div> </li> <li class="ace-line ace-line old-record-id-doxusB7tdGuv2SmCPjgmCN3Jb1c" data-list="bullet"> <div>L&amp;D programs and Education subsidy for employees' growth and development</div> </li> <li class="ace-line ace-line old-record-id-doxusZTvzFyB7VKd89mBtiKL9ob" data-list="bullet"> <div>Various team building programs and company events</div> </li> <li class="ace-line ace-line old-record-id-doxus4VLa66AV1kBqr1XQp7CFec" data-list="bullet"> <div>Wellness and meal allowances</div> </li> <li class="ace-line ace-line old-record-id-doxusktLuOm7fBzEDlSg6b719qf" data-list="bullet"> <div>Comprehensive healthcare schemes for employees and dependants</div> </li> <li class="ace-line ace-line old-record-id-doxusXaQ6LYBcrJKsuq40ykOyNr" data-list="bullet"> <div>More that we love to tell you along the process!</div> </li> </ul> <p>&nbsp;</p> </div> </div><div class="content-conclusion"><div data-lark-html-role="root"><span class="text-only" data-eleid="18"><span class="text-only"><span class="text-only" data-eleid="6">Notice:<br></span></span></span> <div data-lark-html-role="root"><span class="text-only" data-eleid="26"><span class="text-only">All official </span><span class="text-only text-with-abbreviation text-with-abbreviation-bottomline">OKX</span><span class="text-only"> vacancies are published on this website.</span></span> <span class="text-only" data-eleid="28"><span class="text-only">While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. </span></span><strong><span class="text-only" data-eleid="29"><span class="text-only">If in doubt, please apply directly through our official careers website.</span></span></strong></div> </div> <div data-lark-html-role="root"><span class="text-only" data-eleid="18"><span class="text-only">Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to&nbsp;</span><span class="text-only text-with-abbreviation text-with-abbreviation-bottomline">OKX</span><span class="text-only">'s </span></span><a class="link rich-text-anchor __anchor-intercept-flag__ text-content-link" href="https://www.okx.com/en-eu/help/okx-candidate-privacy-notice" target="_blank" data-eleid="19" data-lark-is-custom="true" data-lark-link="true">Candidate Privacy Notice</a><span class="text-only" data-eleid="20"><span class="text-only">.</span></span></div></div>