{"id":236100,"url":"https://alion.io/job/gemini-senior-software-engineer-predictions-mobile","title":"Senior Software Engineer, Predictions (Mobile)","company":{"id":5388,"name":"Gemini","domain":"gemini.com","url":"https://alion.io/company/gemini","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":95,"open_postings":6,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":111,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"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":{"min":140000,"max":200000,"currency":"USD","period":"year","gross":null,"usd_annual":200000},"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"gRPC","optional":false},{"name":"React Native","optional":false},{"name":"TypeScript","optional":false},{"name":"WebSockets","optional":false},{"name":"Expo","optional":true},{"name":"JavaScript","optional":true},{"name":"Jetpack Compose","optional":true},{"name":"Kotlin","optional":true},{"name":"React.js","optional":true},{"name":"Swift","optional":true},{"name":"SwiftUI","optional":true}],"status":"live","first_seen_at":"2026-04-27T19:03:46Z","employer_posted_date":"2026-09-17","last_verified_at":"2026-10-11T23:16:01Z","board_verified":true,"closed_at":null,"days_open":167,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":166},"description":"About the Company\nGemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014, offering a wide range of simple, reliable, and secure crypto products and services to individuals and institutions in over 70 countries. Our mission is to unlock the next era of financial, creative, and personal freedom by providing trusted access to the decentralized future. We envision a world where crypto reshapes the global financial system, internet, and money to create greater choice, independence, and opportunity for all - bridging traditional finance with the emerging cryptoeconomy in a way that is more open, fair, and secure. As a publicly traded company, Gemini is poised to accelerate this vision with greater scale, reach, and impact.\nThe Department: Predictions\nThe Role: Senior Software Engineer (Mobile)\nAs a Senior Mobile Engineer on the Predictions team, you'll own the mobile experience for Gemini's CFTC-regulated prediction markets exchange. You'll build and ship trading interfaces for event contracts - from order entry and position management to real-time market data - within Gemini's React Native app. You'll work closely with product, design, backend, and compliance to bring new contract types (binary, range, combo) to market on mobile and drive activation and retention for a fast-growing product line.\nResponsibilities:\nBuild and maintain the Predictions mobile trading experience end-to-end: market browsing, order placement, portfolio views, and settlement flows. \nArchitect performant, real-time UI for streaming market data (orderbook, price charts, position P&L) using modern React Native patterns (TurboModules, JSI, native navigator integration).\nCollaborate with backend engineers on gRPC and WebSocket integrations that power live trading surfaces. \nCreate reusable, well-tested UI components shared across Predictions and the broader Gemini mobile app.\nPartner with product and design to shape mobile-specific UX for new contract categories (weather, economics, crypto, sports) and features like combo contracts and range contracts.\nScope and implement solutions independently, making informed architecture decisions and tradeoffs around native vs. JS boundaries.\nEstablish and improve mobile development processes - testing strategy, release quality gates, OTA vs. native release decisions.\nConduct thorough code reviews and mentor other engineers on React Native best practices.\nUse analytics and experimentation data to inform product and engineering decisions around activation funnels, onboarding, and trading engagement.\nMinimum Qualifications:\n6+ years of software engineering experience, including 4+ years building production mobile applications with React Native. \nStrong proficiency in TypeScript. \nDeep understanding of React Native internals - bridging, native modules, performance profiling, and debugging.\nExperience building real-time, data-intensive UIs (trading, dashboards, live feeds).\nStrong UX/UI sensibility with a track record of contributing to design and product decisions, not just implementing specs.\nExpertise in unit and integration testing for mobile.\nComfort working in a regulated environment where changes require rigor and auditability. \nPreferred Qualifications:\nExperience with financial or trading applications (orderbooks, charting, position management).\nFamiliarity with Expo, EAS, and OTA update strategies. \nExperience with native module authoring (Swift/Kotlin) or SwiftUI/Jetpack Compose embedding via Expo Modules API.\nExposure to gRPC, WebSockets, or similar real-time transport protocols.\nExperience with performance analysis tooling (Flipper, React DevTools profiler, native instruments). \nPrior work at a fintech, exchange, or other regulated product environment.\nIt Pays to Work Here\nThe compensation & benefits package for this role includes:\nCompetitive starting pay\nA discretionary annual bonus\nLong-term incentive in the form of a new hire equity grant\nComprehensive health plans\n401K with company matching\nPaid Parental Leave\nFlexible time off\nSalary Range: The base salary range for this role is between $140,000 - $200,000 in the State of New York, the State of California and the State of Washington. This range is not inclusive of our discretionary bonus or equity package. When determining a candidate’s compensation, we consider a number of factors including skillset, experience, job scope, and current market data.\nIn the United States, we offer a hybrid work approach at our hub offices, balancing the benefits of in-person collaboration with the flexibility of remote work. Expectations may vary by location and role, so candidates are encouraged to connect with their recruiter to learn more about the specific policy for the role. Employees who do not live near one of our hubs are part of our remote workforce. All employees, however, are required to onboard in-person at one of our office locations.\nAt Gemini, we strive to build diverse teams that reflect the people we want to empower through our products, and we are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. Equal Opportunity is the Law, and Gemini is proud to be an equal opportunity workplace. If you have a specific need that requires accommodation, please let a member of the People Team know.\n#LI-AA1","description_format":"text","description_chars":5456,"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":["401k plan","Equity","Flexible time off","Hybrid work","Parental leave"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"},{"name":"Canada","iso":"CA","kind":"region"},{"name":"Mexico","iso":"MX","kind":"region"},{"name":"Anguilla","iso":null,"kind":"region"},{"name":"Antigua and Barbuda","iso":"AG","kind":"region"},{"name":"Aruba","iso":"AW","kind":"region"},{"name":"Bahamas","iso":"BS","kind":"region"},{"name":"Barbados","iso":"BB","kind":"region"},{"name":"Belize","iso":"BZ","kind":"region"},{"name":"Bermuda","iso":"BM","kind":"region"},{"name":"British Virgin Islands","iso":"VG","kind":"region"},{"name":"Bonaire, Sint Eustatius and Saba","iso":"BQ","kind":"region"},{"name":"Cayman Islands","iso":"KY","kind":"region"},{"name":"Costa Rica","iso":"CR","kind":"region"},{"name":"Curaçao","iso":"CW","kind":"region"},{"name":"Dominica","iso":"DM","kind":"region"},{"name":"Dominican Republic","iso":"DO","kind":"region"},{"name":"El Salvador","iso":"SV","kind":"region"},{"name":"Greenland","iso":"GL","kind":"region"},{"name":"Grenada","iso":"GD","kind":"region"},{"name":"Guadeloupe","iso":"GP","kind":"region"},{"name":"Guatemala","iso":"GT","kind":"region"},{"name":"Haiti","iso":"HT","kind":"region"},{"name":"Honduras","iso":"HN","kind":"region"},{"name":"Jamaica","iso":"JM","kind":"region"},{"name":"Martinique","iso":"MQ","kind":"region"},{"name":"Montserrat","iso":"MS","kind":"region"},{"name":"Nicaragua","iso":"NI","kind":"region"},{"name":"Panama","iso":"PA","kind":"region"},{"name":"Puerto Rico","iso":"PR","kind":"region"},{"name":"Saint Kitts and Nevis","iso":"KN","kind":"region"},{"name":"Saint Lucia","iso":"LC","kind":"region"},{"name":"Saint Vincent and the Grenadines","iso":null,"kind":"region"},{"name":"Saint-Pierre and Miquelon","iso":"PM","kind":"region"},{"name":"Sint Maarten","iso":"SX","kind":"region"},{"name":"Trinidad and Tobago","iso":"TT","kind":"region"},{"name":"Turks and Caicos Islands","iso":"TC","kind":"region"},{"name":"United States Virgin Islands","iso":"VI","kind":"region"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Blockchain & Crypto"],"lifecycle":[{"event":"open","at":"2026-09-05T10:07:20Z"}],"visa":[],"liveness":{"score":27,"band":"fade","label":"Fading","p_open":1,"p_active":0.603,"p_room":0.44,"age_days":165,"expected_fill_days":111,"reasons":["conf:0","velocity","win:tail","crowd:"],"computed_at":"2026-10-10T05:45:15Z"},"pay":{"stated_usd_annual":200000,"is_top_pay":true},"html_url":"https://alion.io/job/gemini-senior-software-engineer-predictions-mobile","json_url":"https://alion.io/job/gemini-senior-software-engineer-predictions-mobile.json","meta":{"generated_at":"2026-10-12T00:40:04Z","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":195,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":5388},"rest":"https://alion.io/mcp/rest/get_company?id=5388"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fgemini-senior-software-engineer-predictions-mobile"},{"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%2Fgemini-senior-software-engineer-predictions-mobile"},{"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%2Fgemini-senior-software-engineer-predictions-mobile"},{"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/gemini-senior-software-engineer-predictions-mobile\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgemini-senior-software-engineer-predictions-mobile"}]}