{"id":1219,"url":"https://alion.io/job/okx-senior-staff-software-engineer-mobile-infrastructure","title":"Senior Staff Software Engineer, Mobile Infrastructure","company":{"id":76,"name":"OKX","domain":"okx.com","url":"https://alion.io/company/okx","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":88,"open_postings":312,"ghost_share":0.112,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":84,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Hong Kong"],"countries":["HK"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":124000,"max_usd":263000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2198},"experience_years_min":6,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Claude Code","optional":false},{"name":"Java","optional":false},{"name":"Jetpack Compose","optional":false},{"name":"Kotlin","optional":false},{"name":"Objective-C","optional":false},{"name":"OpenAI Codex","optional":false},{"name":"Swift","optional":false},{"name":"Dart","optional":true},{"name":"Flutter","optional":true},{"name":"JavaScript","optional":true},{"name":"React Native","optional":true},{"name":"React.js","optional":true}],"status":"live","first_seen_at":"2026-06-29T05:53:10Z","employer_posted_date":"2026-09-30","last_verified_at":"2026-10-18T05:54:36Z","board_verified":true,"closed_at":null,"days_open":111,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":110},"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.\nWho We Are\nAt OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom.\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.\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.\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.\nAbout The Opportunity\nWe are looking for a Senior Staff Mobile Engineer to join our Mobile Infrastructure team, the foundational engineering group that powers the OKX app for millions of daily active users. This is not a feature delivery role. You will work at the platform layer, building the tools, frameworks, and systems that enable product engineering teams to move faster, ship higher quality code, and scale reliably.\nYou are deeply native in either iOS or Android, and confident contributing across both platforms leveraging AI coding tools to move fluidly between stacks. You care about engineering quality at the foundation level: architecture, performance, toolchain, and developer experience.\nWhat You'll Be Doing\nBuild and maintain mobile infrastructure, tooling, and shared frameworks that improve engineering efficiency and developer experience across the organisation.\nAnalyse and optimise application code at the UI and infrastructure layer, including memory footprint, package size, startup time, and rendering performance.\nDesign and develop reusable, scalable mobile components for use across iOS and Android platforms.\nPartner with product engineering teams to deliver infrastructure solutions, establish best practices, and drive technical standards.\nDrive architecture innovations that support world-class mobile app development at scale.\nOptimise project structure and engineering workflows to improve productivity, quality, and release velocity.\nApply AI coding tools to accelerate infrastructure development, improve code quality, and cross-translate solutions across iOS and Android platforms.\nStay current with mobile platform developments and emerging toolchain innovations, evaluating and adopting what moves the needle.\nWhat We Look For In You\n6+ years of native iOS or Android development experience, with a strong track record in infrastructure, platform, or architecture work.\nDeep expertise in either iOS (Swift/Objective-C/C++) or Android (Kotlin/Java, Jetpack), with confidence contributing across both platforms.\nActively uses AI tools in your engineering workflow - including building AI-leveraged workflows, curating domain knowledge bases, and codifying repeatable agent skills so tools like Claude Code or Codex deliver reliably on real production work.\nProven experience optimising app performance - memory, package size, startup time, and UI rendering - in production environments at scale.\nDeep understanding of design patterns, architectural principles, and the mobile SDK layer for building scalable, high-performance components.\nWorking knowledge of remote APIs, concurrency, layouts, transitions, animations, client-side persistence, and mobile architectural patterns.\nStrong communication skills - comfortable collaborating across global teams and delivering large-scale engineering outcomes independently.\nNice-To-Haves\nExperience working in a dedicated mobile architecture or infrastructure team with deep platform specialisation.\nHands-on experience across performance optimisation, toolchain engineering, automated testing frameworks, or design pattern standardisation.\nExperience working across both iOS and Android in a production infrastructure context.\nFamiliarity with cross-platform frameworks such as React Native or Flutter.\nExperience in fintech, crypto, or other high-scale consumer app environments.\nPerks & Benefits\nCompetitive total compensation package\n\nL&D programs and Education subsidy for employees' growth and development\n\nVarious team building programs and company events\n\nWellness and meal allowances\n\nComprehensive healthcare schemes for employees and dependants\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#LI-ML1 #LI-ONS \nNotice:\nAll official OKXvacancies 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.\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.","description_format":"text","description_chars":5284,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Company events"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Mobile Networks","Blockchain & Crypto","Cryptocurrencies","Crypto Wallets"],"lifecycle":[{"event":"open","at":"2026-06-29T05:53:10Z"},{"event":"close","at":"2026-09-17T07:04:11Z"},{"event":"reopen","at":"2026-09-17T09:32:03Z"}],"visa":[],"liveness":{"score":32,"band":"fade","label":"Fading","p_open":1,"p_active":0.732,"p_room":0.44,"age_days":109,"expected_fill_days":84,"reasons":["conf:1","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/okx-senior-staff-software-engineer-mobile-infrastructure","json_url":"https://alion.io/job/okx-senior-staff-software-engineer-mobile-infrastructure.json","meta":{"generated_at":"2026-10-18T08:01:20Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":12040,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":76},"rest":"https://alion.io/mcp/rest/get_company?id=76"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fokx-senior-staff-software-engineer-mobile-infrastructure"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fokx-senior-staff-software-engineer-mobile-infrastructure"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fokx-senior-staff-software-engineer-mobile-infrastructure"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/okx-senior-staff-software-engineer-mobile-infrastructure\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fokx-senior-staff-software-engineer-mobile-infrastructure"}]}