Hiring: Senior Software Engineer, Predictions (Mobile) Company: Gemini Location: Miami, FL Job Posted Time: 2026-09-17 11:38:15 Employment Type: Contract / Remote Target Skills & Keywords : Expo, Integration Testing, Jetpack Compose, Kotlin, React, React Native, Swift, SwiftUI, TypeScript, Web3, WebSocket, gRPC About the job Experience: •6+ years of software engineering experience, including 4+ years building production mobile applications with React Native. Required Skills: •Build and maintain the Predictions mobile trading experience end-to-end: market browsing, order placement, portfolio views, and settlement flows. •Architect performant, real-time UI for streaming market data (orderbook, price charts, position P&L) using modern React Native patterns (TurboModules, JSI, native navigator integration). •Partner cross-functionally with backend engineers on gRPC and WebSocket integrations that power live trading surfaces. •Create reusable, well-tested UI components shared across Predictions and the broader Gemini mobile app. •Partner 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. •Scope and implement solutions independently, making informed architecture decisions and tradeoffs around native vs. JS boundaries. •Establish and improve mobile development processes — testing strategy, release quality gates, OTA vs. native release decisions. •Conduct thorough code reviews and mentor other engineers on React Native best practices. Qualifications: •Comprehensive expertise in React Native internals — bridging, native modules, performance profiling, and debugging. •Strong UX/UI sensibility with a track record of contributing to design and product decisions, not just implementing specs. •Expertise in unit and integration testing for mobile. •Comfort working in a regulated environment where changes require rigor and auditability. •Operational familiarity with Expo, EAS, and OTA update strategies. •Exposure to gRPC, WebSockets, or similar real-time transport protocols. •Prior work at a fintech, exchange, or other regulated product environment. •It Pays to Work Here Compensation: •$140,000 - $200,000 / year •Flexible work environment (work from home / hybrid options) Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!