Senior/Staff Java Engineer - Web3 Wallet Defi Earn
Hong Kong, Hong Kong SAR; Singapore, Singapore·Posted today
web3blockchainsmart-contractsdefiredisevmsolana
<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"> <h2 data-page-id="AEW3d0Y2noLuIcxROuFubTLpsZd" data-docx-has-block-data="false"><br><strong>Who We Are</strong></h2> <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="Kpucdjv7JoAcSZxSf7PuRl5Yscb" data-lark-html-role="root" data-docx-has-block-data="false"> <div class="ace-line ace-line old-record-id-doxusxfrenHjJKtgnorBrzgGFPb">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-doxusxfrenHjJKtgnorBrzgGFPb">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-doxusxfrenHjJKtgnorBrzgGFPb">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> </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"> <h2 class="heading-2 ace-line old-record-id-PiRwdXFmiomeQDxx0RUuDGJ1sag"><strong>About the Opportunity</strong></h2> <div class="ace-line ace-line old-record-id-NrSYd8kjeoNTrexRDNsuNpZOsMd"> <p class="font-claude-response-body break-words whitespace-normal">We're building the next generation of open platforms at the intersection of Web3 and AI — secure, open, and high-performance products and infrastructure spanning DeFi and the AI Agent ecosystem, designed to bring smarter Web3 experiences to users worldwide.</p> <p class="font-claude-response-body break-words whitespace-normal">The team is focused on two core directions:</p> <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"> <li class="font-claude-response-body whitespace-normal break-words pl-2"><strong>Wallet Earn</strong> — A one-stop on-chain aggregated investment platform that lets users easily access leading DeFi protocols such as Aave, Morpho, Pendle, and Pancake, with seamless deposit, redemption, and yield management, continuously lowering the barrier to DeFi participation.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2"><strong>AI Agent Marketplace</strong> — An open marketplace and infrastructure layer for AI Agents, built around core primitives like Agent, Task, and Order. It enables agents to autonomously accept tasks, complete work, earn rewards, build reputation, and collaborate with other agents to create value.</li> </ul> <p class="font-claude-response-body break-words whitespace-normal">OKX is part of OKG. Through OKX, OKX Wallet, OKX Pay, and OKLink, OKG delivers leading Web3 infrastructure and digital asset services to users globally.</p> <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"> <li class="font-claude-response-body whitespace-normal break-words pl-2">Design, build, and continuously optimize the backend architecture of the Wallet Earn on-chain aggregated investment platform.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Design and build the aggregated-investment risk control platform, ensuring system stability, fund safety, and business scalability.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Continuously improve protocol integration capabilities, raising both new-protocol onboarding efficiency and overall R&D velocity.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Contribute to the multi-chain user asset/position platform, supporting asset parsing and display across major public chains and DeFi protocols; expand new protocols and asset types while keeping position data accurate, real-time, and efficient.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Contribute to the AI Agent Marketplace core platform, owning the architecture and development of core modules such as Agent, Task, and Order, and explore integration scenarios between AI Agents and Web3.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Own stability across core business flows to ensure high availability and high performance; independently diagnose and resolve complex production issues including performance bottlenecks, data consistency, fund safety, and edge-case business scenarios.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Continuously improve system architecture, code quality, monitoring/alerting, observability, and exception-compensation capabilities to strengthen reliability, security, and maintainability.</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"> <li class="font-claude-response-body whitespace-normal break-words pl-2">Solid Java fundamentals with strong command of mainstream frameworks such as Spring Boot and Spring Cloud.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Hands-on experience with common middleware including MySQL, Redis, MQ, and RPC.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Proven experience building high-concurrency, high-availability distributed systems.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Familiarity with the design and mechanics of major DeFi protocols (e.g., Aave, Morpho, Pendle, Pancake); understanding of smart contract fundamentals, with on-chain integration or contract development experience a plus.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Familiarity with mainstream wallet products and account models, and a working understanding of on-chain assets and the DeFi ecosystem.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Strong systems analysis and architecture design skills, ideally from large-scale consumer (To C) products or financial systems; able to independently own core-module design and drive complex projects to high-quality delivery.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Ability to independently analyze and resolve complex production issues, with experience in log analysis, distributed tracing, performance tuning, fault recovery, and data-consistency governance.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Strong sense of ownership and accountability, proactively driving problems and projects to resolution.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Strong communication and collaboration skills, comfortable in a fast-moving business environment; genuine interest in Web3, DeFi, or AI Agents and a drive to keep exploring frontier technology.</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"> <li class="font-claude-response-body whitespace-normal break-words pl-2">Familiarity with account models, transaction mechanics, and underlying principles of major public chains such as EVM, Solana, and Tron.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">On-chain protocol development, smart contract development, or protocol integration experience.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Experience building high-concurrency trading systems, core financial systems, or payment systems.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Understanding of on-chain risk control, KYT, and AML mechanisms.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Platform development experience with AI Agents, LLMs, MCP, Function Calling, A2A (Agent-to-Agent) protocols, or Workflow systems.</li> </ul> <h2 class="font-claude-response-body break-words whitespace-normal"><strong>Perks & Benefits</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"> <li class="font-claude-response-body whitespace-normal break-words pl-2">Competitive compensation and a long-term incentive plan.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Comprehensive insurance coverage for employees and their families.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">An international team, an open engineering culture, and rich opportunities for technical growth.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Deep involvement in frontier Web3 × AI work, building next-generation open infrastructure alongside outstanding engineers.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Additional benefits will be detailed later in the hiring process.</li> </ul> </div> <div class="ace-line ace-line old-record-id-JGIsdeznCo2qpfxJAqkuViMfsHS"> <div> <div class="job__description body"> <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="Zrp2dGhcIo3UFmxud3WuQirssDb" data-lark-html-role="root" data-docx-has-block-data="false"> <div data-page-id="I1Zud8CYtoGHccx0MImuyRU4s2c" data-lark-html-role="root" data-docx-has-block-data="false"> <div data-page-id="I1Zud8CYtoGHccx0MImuyRU4s2c" data-lark-html-role="root" data-docx-has-block-data="false"> </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>