{"id":468936,"url":"https://alion.io/job/dfns-lead-mobile-engineer","title":"Lead Mobile Engineer","company":{"id":175593,"name":"Dfns","domain":"dfns.co","url":"https://alion.io/company/dfns","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Deel","truth_index":{"grade":"B","score":81,"open_postings":9,"ghost_share":0,"stale_share":0.778,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-24T06:02:35Z"}},"role":"Mobile","role_family":"Mobile","seniority":"lead","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Paris, France"],"countries":["FR"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":120000,"max":220000,"currency":"USD","period":"year","gross":null,"usd_annual":220000},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Kotlin","optional":false},{"name":"React Native","optional":false},{"name":"Swift","optional":false},{"name":"JavaScript","optional":true},{"name":"React.js","optional":true}],"status":"live","first_seen_at":"2026-02-23T22:07:11Z","employer_posted_date":"2026-03-09","last_verified_at":"2026-10-24T15:33:28Z","board_verified":true,"closed_at":null,"days_open":242,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":242},"description":"Join a team of engineers and cryptographers building the infrastructure behind the next generation of financial systems.\nWe’re hiring a Lead Mobile Engineer to build the mobile experience of our platform. You’ll design and ship iOS and Android applications, improve our cross-platform architecture, and build interfaces that are fast, intuitive, and reliable. We’re looking for strong expertise in React Native and a sharp eye for product and UX details. You have experience shipping production mobile apps in fintech, blockchain, or other high-reliability environments. You’ll work closely with product, security, and backend teams to turn complex requirements into simple mobile workflows for both administrators and end users. This role includes owning projects end to end, contributing to mobile architecture decisions, and ensuring the mobile stack remains secure, reliable, and easy to build on.\nResponsibilities\nLead the design and development of our iOS/Android apps.\n\nOwn features from idea to launch to iteration.\n\nRefine SDKs and cross-platform frameworks for smooth integrations.\n\nBring fintech-grade UX and bank-grade security to mobile wallets.\n\nSet high standards for performance, security, and architecture.\n\nPartner with product and design to ship features fast.\n\nWrite clear docs, review code, and mentor teammates.\n\nRequirements\n8+ years in mobile engineering, with experience leading projects.\n\nExpert in React Native or native mobile (Swift, Kotlin, etc.).\n\nSkilled in cross-platform development and SDKs.\n\nHands-on with WebAuthn, passkeys, and secure authentication.\n\nProven record of shipping mobile apps in fintech or onchain.\n\nStrong sense of UX, detail-oriented, and reliable.\n\nClear communicator who thrives in fast-moving teams.\n\nRecruiting Process\nIntro call with Co-CEO (30 min)\n\nPersonality and cognitive tests (45 min)\n\nCoding test in a language of your choice\n\nFocus interviews with the hiring panel (180 min)\nCode review\n\nArchitecture review\n\nSecurity fundamentals\n\nCulture check fit\n\nFinal interview with CTO (30 min)\n\nReference calls and background checks\n\nTerms\nTitle: Lead Mobile Engineer\n\nSalary: $120,000-220,000 per year (full-time)\n\nEquity: 100-200 stock options vested over 4 years\n\nBenefits: Healthcare and travel expenses\n\nLocation: US or EU (remote-first, office optional)\n\nEquipment: MacBook Pro + essentials","description_format":"text","description_chars":2355,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Apple Macbook","Equity","Stock options"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Blockchain Infrastructure","Crypto Wallets"],"lifecycle":[{"event":"open","at":"2026-09-06T12:56:06Z"}],"visa":[],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.221,"p_room":0.28,"age_days":242,"expected_fill_days":34,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-24T06:02:35Z"},"pay":{"stated_usd_annual":220000,"is_top_pay":true},"html_url":"https://alion.io/job/dfns-lead-mobile-engineer","json_url":"https://alion.io/job/dfns-lead-mobile-engineer.json","meta":{"generated_at":"2026-10-24T16:51:59Z","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":24416,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"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":175593},"rest":"https://alion.io/mcp/rest/get_company?id=175593"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fdfns-lead-mobile-engineer"},{"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%2Fdfns-lead-mobile-engineer"},{"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%2Fdfns-lead-mobile-engineer"},{"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/dfns-lead-mobile-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fdfns-lead-mobile-engineer"}]}