> Markdown version of [/jobs/ext/2847982-mobile-app-engineer](https://www.wearedevelopers.com/jobs/ext/2847982-mobile-app-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mobile App Engineer - **Company:** The Dsi Group, Inc. - **Location:** Los Angeles, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Flutter, Multitier Architecture, Application Programming Interfaces (APIs), Business Analytics Applications, Data Analysis, IOS Applications, App Store (IOS), Cloud Computing, Code Generation, Code Review, Databases, Continuous Integration, Software Debugging, Decision Support Systems, Dependency Injection, Memory Management, Payment Systems, Github, Google Analytics, Apache Hive, Push Technology, JSON, Automation of Marketing, Payment Gateway, Performance Tuning, Shopify, Software Engineering, System Testing, Klaviyo Email and SMS Marketing, Pixel Perfect, Firebase, Offline Storage, Backend, Kotlin, Integration Tests, Sentry, Dart, Reactive Programming, Restful APIs, Multiplatform - **Published:** September 11, 2026 - **Apply:** https://www.thejobnetwork.com/job/c4790b30-a74d-4ba5-a70b-d1260f860de4/senior-mobile-app-engineer ## About the Role The ideal candidate brings deep expertise in Flutter, strong command of clean architecture and scalable mobile patterns, and a passion for crafting performant, intuitive, and conversion-driven mobile commerce experiences. You thrive in fast-paced environments, take ownership of technical quality, and are motivated by building products used by millions of customers worldwide., * 5+ years professional software engineering with 3+ years Flutter/Dart development * Shipped production Flutter apps to App Store and Play Store at scale * Expert-level Flutter and Dart with strong null safety practices * BLoC pattern (flutter_bloc) and clean architecture (domain/data/presentation layers) * Code generation tools: Freezed, JSON Serializable, Retrofit, Injectable/GetIt * Local storage solutions: ObjectBox, Hive, or similar embedded databases * Dio networking with RESTful API integrations and error handling * Comprehensive testing: unit, widget, BLoC tests with mocktail/bloc_test * E-commerce experience: shopping cart, checkout, product catalogs, user authentication Preferred: * Firebase ecosystem: Analytics, Crashlytics, Remote Config, Cloud Messaging * Multi-platform analytics (Braze, Sentry, Google Analytics, QuantumMetrics) * Shopify API or headless commerce platform experience * Marketing automation (Klaviyo, Braze) and push notification implementation * CI/CD with GitHub Actions * Platform channels with native iOS (Swift) and Android (Kotlin)a * FVM, l10n/i18n with flutter_intl, accessibility standards, * Deep understanding of Flutter internals, widget lifecycle, and performance optimization * Expertise in complex state management with BLoC and reactive programming (RxDart, Streams) * Strong architectural decision-making balancing scalability, maintainability, and performance * Proficiency with code generation workflows and dependency injection patterns * Experience debugging across Dart, Flutter framework, and native platform layers E-Commerce & Product Mindset: * Understanding of mobile commerce user journeys and conversion optimization * Experience with high-traffic consumer applications * Customer-centric approach with data-driven decision making * Familiarity with payment flows, loyalty programs, and personalization Collaboration & Leadership: * Excellent communication skills with technical and non-technical stakeholders * Ownership mentality - driving features from design through production * Proven mentorship capabilities and knowledge sharing * Team-first attitude with positive, collaborative approach * Comfortable with ambiguity and defining technical requirements ## Description * Build complex, performant UIs with pixel-perfect design implementation and smooth animations * Integrate third-party services: Shopify APIs, payment gateways, analytics platforms, CMS * Implement repository pattern with abstract interfaces and domain models * Write comprehensive unit, widget, and integration tests (80%+ coverage target) * Optimize app performance, memory usage, and crash-free rates * Conduct code reviews and mentor junior developers on Flutter best practices * Manage CI/CD pipelines and coordinate app releases * Collaborate with product, design, and backend teams on feature planning and technical decisions * Monitor production metrics via Crashlytics/Sentry and proactively resolve issues, * Free weekly catered lunch at HQ - M/T/W/Th * Dog-Friendly office on a Thursday and Friday * Free Swag Giveaways * Annual Holiday Party * Annual Summer Party * Invitations to pop-ups and other company events * Complimentary daily office snacks and beverages ## Related Videos - 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