Pentasia is partnered with an exciting early-stage product company that is redefining fan engagement within the sports and gaming space. Our client is building a next-generation sports and casino sweepstakes platform and is looking for a Senior Mobile Developer to play a key role in shaping the future of its mobile experience. This is a high-impact opportunity to join a fast-moving team where you'll have genuine ownership, influence product direction, and help scale a platform with ambitious growth plans.The OpportunityMobile sits at the heart of our client's roadmap. As they evolve from a WebView-heavy architecture toward a fully native React Native experience, they are seeking an experienced mobile engineer who can help drive that transformation. You'll be responsible for delivering intuitive, high-performance mobile experiences across iOS and Android, while working closely with Product, Design, Backend, and Frontend teams to improve user activation, engagement, and retention.This role would suit someone who thrives in a startup environment, enjoys solving complex mobile challenges, and wants the opportunity to have a direct impact on both product and technical strategy.Key ResponsibilitiesLead the evolution from a WebView-centric architecture to fully native, high-performance React Native applicationsDesign, build, and maintain premium mobile experiences across sports and gaming productsWork closely with backend teams to develop scalable and reliable API integrations, including real-time data handling, caching strategies, and network resilienceCollaborate with Product and Design teams to create polished user experiences featuring native interactions, animations, and gesturesOwn and manage the mobile release lifecycle through CodePush, TestFlight,



and Google PlayMonitor and optimize application performance using analytics and attribution platforms such as Firebase, GTM, and AppsFlyerEstablish engineering best practices, testing frameworks, tooling standards, and development processes for the mobile teamRequirements4+ years of experience developing and shipping production mobile applications for both iOS and AndroidExpert-level React Native and TypeScript experienceStrong understanding of mobile architecture, state management, navigation, and performance optimizationExperience working with analytics, user attribution, experimentation frameworks, and push notification platformsHands‐on experience managing App Store Connect and Google Play ConsoleStrong knowledge of mobile performance diagnostics, profiling, and troubleshooting issues such as memory leaks and bridge bottlenecksComfortable working in a fast‐paced, entrepreneurial environmentPassion for delivering exceptional user experiences with a keen eye for design detailStrong communicator who can effectively challenge and influence product decisions when neededNice to HaveExperience within sports betting, gaming, iGaming, sweepstakes, fintech, or other real‐time consumer productsExposure to onboarding, activation, retention, and lifecycle-focused product initiativesKnowledge of Swift and/or KotlinExperience contributing to product strategy and feature ideationFamiliarity with experimentation platforms, attribution tools, and engagement systemsWhat's on OfferCompetitive compensation packageSignificant technical ownership and autonomyThe opportunity to influence the development of a rapidly growing mobile productA collaborative engineering culture focused on innovation and deliveryHybrid working flexibility in TorontoTeam events, social activities, stipend advantages, and a highly engaged work environment #J-18808-Ljbffr

📌 Senior Mobile Developer | React Native | Igaming (Toronto)
🏢 Pentasia
📍 Toronto