{"id":126562,"url":"https://alion.io/job/arcus-senior-mobile-engineer-react-native","title":"Senior Mobile Engineer (React Native)","company":{"id":47763,"name":"Arcus","domain":"arcus.xyz","url":"https://alion.io/company/arcus","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Gem","truth_index":null},"role":"Mobile","role_family":"Mobile","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":156000,"max_usd":268000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":199},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"dYdX","optional":false},{"name":"JavaScript","optional":false},{"name":"React Native","optional":false},{"name":"State Management","optional":false},{"name":"Stripe","optional":false},{"name":"TypeScript","optional":false},{"name":"CI/CD","optional":true},{"name":"DeFi","optional":true},{"name":"Kotlin","optional":true},{"name":"React Query","optional":true},{"name":"React.js","optional":true},{"name":"Redux","optional":true},{"name":"Swift","optional":true},{"name":"Zustand","optional":true}],"status":"live","first_seen_at":"2026-06-10T00:20:19Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-16T11:05:49Z","board_verified":true,"closed_at":null,"days_open":128,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":128},"description":"Build the Future of Global Markets\nAt Arcus, our mission is to empower anyone to build wealth by making investing accessible, affordable, and simple. The team behind Arcus previously built dYdX, helping power over $1.5 trillion in trading volume. Now we're bringing the world's financial markets onchain.\nBuilt in partnership with Robinhood Chain and backed by a direct investment from Robinhood Crypto, Arcus brings crypto, stock tokens, commodities, and perpetual futures into one self-custodied account. Our vision is to build the world's best spot and perpetuals exchange - trusted, accessible, and reliable, with deep liquidity and accurate prices. Every asset, 24/7.\nExperienced team: Google, Meta, Citadel, DRW, IMC Trading, Stripe, Coinbase, and more.\nLeading backers and advisors: Andreessen Horowitz, Polychain Capital, Brian Armstrong, Fred Ehrsam, Naval Ravikant, Elad Gil, and more.\nJoin us in shaping the next generation of global financial markets!\n→ Learn more about working at Arcus\nRESPONSIBILITIES:\nBuild and enhance the Arcus mobile application using React Native\nOwn end-to-end mobile features from architecture and implementation through testing, release, and ongoing maintenance\nCollaborate closely with designers and backend engineers to deliver intuitive and performant mobile experiences\nHelp define the technical direction and architecture of our mobile platform\nImprove application performance, reliability, observability, and developer experience\nWork with technologies that directly interface with blockchain networks, wallets, and decentralized protocols\nPartner with cross-functional teams to deliver best-in-class trading experiences on mobile\nREQUIREMENTS:\nYou have demonstrated technical excellence through previous work and shipped high-quality mobile applications at scale\nStrong experience building and maintaining production React Native applications\nProficiency in JavaScript and TypeScript\nDeep understanding of mobile application architecture, state management, networking, performance optimization, and testing\nExperience publishing and supporting applications on both iOS and Android platforms\nStrong product sense and attention to user experience details\nYou are a fast learner who can quickly master new technologies and complex systems\n5+ years of software engineering experience, including significant experience building mobile applications\nExperience collaborating with designers, product managers, and backend engineers in fast-paced environments\nNICE TO HAVES:\nExperience building financial, trading, fintech, or security-sensitive applications\nExperience with native iOS (Swift) and/or Android (Kotlin) development\nExperience with React Query, Redux, Zustand, or similar state management solutions\nExperience building highly performant real-time applications\nExperience working with crypto wallets, blockchain technologies, or DeFi products\nFamiliarity with CI/CD pipelines, automated testing, and mobile release processes\nExperience mentoring engineers and influencing technical direction\nBENEFITS:\nUnlimited flexible PTO and 11+ paid company holidays\nCompany-paid medical, dental, and vision coverage\n401(k) with company match\nPaid parental leave\n$300/month wellness stipend\n$125/month commuter benefit and $200/month phone and internet stipend\n$1,700 in-office setup allowance plus up to $1,000 for home office\nFree lunch at the office and dinner post 6PM\n2 team offsites per year\nTeam bonding events - restaurants, comedy shows, escape rooms, etc.\nSalary range for this role is $210K to $270K (NY). Compensation subject to experience and location. Published salary bands pursuant to transparency laws, and do not include possible variable compensation such as annual merit increases, bonus eligibility, commission, or equity incentive.","description_format":"text","description_chars":3792,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity","Home office","Parental leave"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Blockchain & Crypto","Cryptocurrencies","Online Brokerage & Trading Platforms"],"lifecycle":[{"event":"open","at":"2026-06-10T00:20:19Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"Filed H-1B visas in the last two years","filings_12m":0,"filings_prev_12m":1,"green_card_filings_12m":0,"median_offered_wage_usd":null,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":0}],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.251,"p_room":0.28,"age_days":128,"expected_fill_days":31,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/arcus-senior-mobile-engineer-react-native","json_url":"https://alion.io/job/arcus-senior-mobile-engineer-react-native.json","meta":{"generated_at":"2026-10-16T13:50:40Z","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":13261,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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":47763},"rest":"https://alion.io/mcp/rest/get_company?id=47763"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Farcus-senior-mobile-engineer-react-native"},{"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%2Farcus-senior-mobile-engineer-react-native"},{"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%2Farcus-senior-mobile-engineer-react-native"},{"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/arcus-senior-mobile-engineer-react-native\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Farcus-senior-mobile-engineer-react-native"}]}