{"active":true,"apply_url":"https://job-boards.greenhouse.io/okx/jobs/7805494003","company":{"claimed":false,"name":"OKX","slug":"okx","website":"https://www.okx.com"},"countries":["HK"],"employment_type":null,"first_seen_at":"2026-10-31T10:15:09Z","getwork_url":"https://getwork.dev/jobs/gh-okx-7805494003/","id":"gh-okx-7805494003","injection_flag":false,"last_seen_at":"2026-11-03T12:00:09Z","location":"Hong Kong, Hong Kong SAR","published_at":"2026-07-15T05:21:10Z","regions":["apac"],"remote":"onsite","role_family":"mobile","salary":null,"seniority":"staff","stack":["rust","react","llm"],"stack_mentioned":["javascript","java","kotlin","swift"],"title":"Senior / Staff Software Engineer, Mobile — Core (Account & Risk)","untrusted_description":"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.\n\nWho We Are\n\nAt OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom.\n\nOKX 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.\n\nAcross our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er.\n\nOKX 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.\n\nAbout The Team\n\nOwn the account backbone of a CeFi platform trusted by millions — login, registration, account security, MFA, Passkey — where a single security regression is measured in real user funds. The more senior you are, the more you set the technical direction others build on.\n\nWhat You'll Be Doing\n\n-\nOwn account-system subsystems end-to-end — authentication, MFA, Passkey/WebAuthn, session & device trust, account registration and recovery — including architecture, tradeoffs, and long-term evolution.\n\n-\nDesign flows that are secure and low-friction at millions-of-DAU scale — the hardest tradeoff in this space.\n\n-\nPartner with risk & security teams to turn threat models into shipped mobile defenses.\n\n-\nBuild our AI-native engineering practice — design automated development workflows and harness systems (agents, evals, guardrails, CI integration) that let AI do real engineering work, while safeguarding delivery quality and efficiency.\n\n-\nRaise the bar through design and code review, and by making the engineers around you better.\n\n-\nAt the Staff level: set technical direction beyond your own subsystem and drive cross-team, cross-timezone decisions that shape the account platform.\n\nWhat We Look For In You\n\n-\nDeep, hands-on experience building native iOS and/or Android — you understand the platform, not just a framework on top of it.\n\n-\nExperience with a cross-platform / shared business-logic layer. We build ours in Rust + UniFFI; direct Rust-on-mobile experience is a strong plus, but experience with any shared-logic approach — KMP, Flutter, or React Native — transfers well and is valued.\n\n-\nFluent in at least one of: Swift / Kotlin / Rust / Objective-C / Java / JavaScript, with strong CS fundamentals.\n\n-\nArchitecture experience with large-scale mobile apps — you've applied maintainable design patterns and own solutions from requirements through to production.\n\n-\nHands-on with mobile authentication & security — OAuth/OIDC, MFA, secure storage (Keychain/Keystore), biometrics. Direct experience with Passkey / WebAuthn / FIDO2 is a strong advantage — it's live in our stack and central to what you'll work on.\n\n-\nSolid grasp of threat modeling and the mobile attack surface.\n\n-\nYou apply AI deeply in your own engineering — not just code generation. You've built, or are driven to build, automated development workflows and harnesses that make delivery both faster and more reliable. Solid grasp of LLM fundamentals, prompt engineering, RAG, and agent concepts, with hands-on experience taking an AI pipeline from scratch to shipped.\n\n-\nComfortable with ambiguity and high scale — you've debugged problems that only appear under real production load.\n\n-\nSignals we value: you naturally raise the standard of teams you join, mentor without being asked, and can grow into a technical anchor for the group.\n\nNice-To-Haves\n\n-\nFraud / risk, cryptography, or regulated-industry (fintech) experience.\n\n-\nExperience with mini-program or dynamic/hot-update frameworks.\n\n-\nCrypto trading / Web3 experience.\n\nPerks & Benefits\n\n-\nCompetitive total compensation package\n\n-\nL&D programs and Education subsidy for employees' growth and development\n\n-\nVarious team building programs and company events\n\n-\nWellness and meal allowances\n\n-\nComprehensive healthcare schemes for employees and dependants\n\n-\nMore that we love to tell you along the process!\n\nPlease 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.\n\nNotice:\n\nAll official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website.\n\nInformation collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX's Candidate Privacy Notice.","url":"https://job-boards.greenhouse.io/okx/jobs/7805494003"}