Senior Staff/Staff Cryptography Engineer
Hong Kong, Hong Kong SAR; Singapore, Singapore·Posted today
web3blockchainzkcybersecuritygorustzk-snark
<div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxuseysYUio6Qia64JLLAwE7dh"> <div data-page-id="doxusokjWsaOkSCIjzixAfRM3sd" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxusaUYeCmu82WSkkm5KDd00db"> <div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxuseysYUio6Qia64JLLAwE7dh"> <div data-page-id="doxusokjWsaOkSCIjzixAfRM3sd" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxusaUYeCmu82WSkkm5KDd00db"> <div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxuseysYUio6Qia64JLLAwE7dh"> <div data-page-id="doxusokjWsaOkSCIjzixAfRM3sd" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxusaUYeCmu82WSkkm5KDd00db"> <div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxuseysYUio6Qia64JLLAwE7dh"> <div data-page-id="doxusokjWsaOkSCIjzixAfRM3sd" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxusaUYeCmu82WSkkm5KDd00db"> <div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxuseysYUio6Qia64JLLAwE7dh"> <div data-page-id="doxusokjWsaOkSCIjzixAfRM3sd" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxusaUYeCmu82WSkkm5KDd00db"> <div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <div data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"> <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"> <div data-page-id="PNNZdiw4Yo1ZOmx8btbucw8qsLG" data-lark-html-role="root" data-docx-has-block-data="false"> <h2 class="heading-2 ace-line old-record-id-ARMWdtKDIowwlyxaSOuuzEqssIf"><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">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.</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. 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.</div> </div> </div> </div> <div class="ace-line ace-line old-record-id-Cfb8dvi9voxFkWxhNcmuJX50sZb"> <div data-page-id="PNNZdiw4Yo1ZOmx8btbucw8qsLG" data-lark-html-role="root" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-NQ1gdeOLNoEsm2xDroWukiwGs3g"> </div> <div class="ace-line ace-line old-record-id-NQ1gdeOLNoEsm2xDroWukiwGs3g"> <h2 class="font-claude-response-body break-words whitespace-normal"><strong>Responsibilities</strong></h2> <ul class="[li_&]:mb-0 [li_&]:mt-1 [li_&]:gap-1 [&:not(:last-child)_ul]:pb-1 [&:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1"> <li class="font-claude-response-body whitespace-normal break-words pl-2">Design, assess migration paths for, and implement post-quantum cryptography (PQC) algorithms within existing signature and key management systems; track the latest developments in cutting-edge PQC standards such as lattice-based cryptography</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Design and develop the underlying cryptography library for MPC wallet / Web3 security products</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Research Web3-ecosystem cryptography technologies and produce technology selection reports and related technical documentation</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Conduct security audits of wallet-layer signature code and cryptographic protocol implementations</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Participate in defining the team's cryptography technical standards and enforce security red lines for cryptography-related code</li> </ul> <h2 class="font-claude-response-body break-words whitespace-normal"><strong>Requirements</strong></h2> <ul class="[li_&]:mb-0 [li_&]:mt-1 [li_&]:gap-1 [&:not(:last-child)_ul]:pb-1 [&:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1"> <li class="font-claude-response-body whitespace-normal break-words pl-2">Master's degree or above in Cryptography, Mathematics, Computer Science, Cybersecurity, or a related field</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Solid theoretical foundation in cryptography, including public-key cryptosystems, symmetric/asymmetric cryptography principles, lattice theory fundamentals, security protocol design, and blockchain cryptography applications</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">In-depth research experience in post-quantum cryptography; familiar with lattice-based cryptography and hash-based signatures; knowledge of NIST PQC standard algorithms (Kyber, Dilithium, SPHINCS+, etc.); experience with algorithm migration or engineering implementation is a plus</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">In-depth research experience in secure multi-party computation (MPC); familiar with threshold signature and secret sharing protocol principles and engineering implementation</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Some research background in zero-knowledge proofs (e.g., zk-SNARK/zk-STARK), homomorphic encryption, or related cryptographic theory</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Proficient in at least one of: C/C++, Rust, Go, or Java</li> </ul> <h2 class="font-claude-response-body break-words whitespace-normal"><strong>Nice-to-Haves</strong></h2> <ul class="[li_&]:mb-0 [li_&]:mt-1 [li_&]:gap-1 [&:not(:last-child)_ul]:pb-1 [&:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1"> <li class="font-claude-response-body whitespace-normal break-words pl-2">Published papers at international cryptography conferences</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Fluent English (listening, speaking, reading, writing)</li> </ul> </div> <h2 class="heading-2 ace-line old-record-id-CmqsdZ2GTo6Z9VxuHx4ugzRRsm3"><strong>Perks &<span style="font-size: 18pt;"> Benefits </span></strong></h2> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-XvQudJ7z0ouSnuxOibouMkKzsCc" data-list="bullet"> <div>Competitive total compensation package</div> </li> <li class="ace-line ace-line old-record-id-GAzBdJXxLo291PxrthXurPeds4g" data-list="bullet"> <div>L&D programs and Education subsidy for employees' growth and development</div> </li> <li class="ace-line ace-line old-record-id-CKPxdgHeoosenzxCpV2uV32ysz0" data-list="bullet"> <div>Various team building programs and company events</div> </li> <li class="ace-line ace-line old-record-id-XjPSdIa92oGeLox9Qo9uejVEs4c" data-list="bullet"> <div>Wellness and meal allowances </div> </li> <li class="ace-line ace-line old-record-id-CS34dAJCDoMDHxx95pZu43yjsxB" data-list="bullet"> <div>Comprehensive healthcare schemes for employees and dependants </div> </li> <li class="ace-line ace-line old-record-id-Uqtsd4bN8oaHt7xyPlYuxmfcsob" data-list="bullet"> <div>More that we love to tell you along the process!</div> </li> </ul> <div class="ace-line ace-line old-record-id-JGIsdeznCo2qpfxJAqkuViMfsHS"> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </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 </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>