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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mobile Engineer - React Native - **Company:** CGI Technologies and Solutions, Inc. - **Location:** St. Louis, MO, United States - **Experience:** Expert - **Salary:** $89,600.0 - $176,300.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), A/B Testing, Web Accessibility, Agile Methodology, Amazon Web Services, Data Analysis, IOS Applications, Application Integration Architecture, App Store (IOS), Microsoft Azure, Bluetooth, Mobile Application Development, Cloud Computing, Program Optimization, Profiling, Code Review, Databases, Continuous Integration, Software Debugging, Memory Management, Sync (Unix), Github, Push Technology, Mobile Application Software, Location-Based Services, Modular Design, Objective-C (Programming Language), Performance Tuning, Scrum Methodology, Mobile Security, Software Engineering, TypeScript, Management of Software Versions, Working Model 2D, Data Logging, Google Cloud, ReactJS, Caching, Technical Debt, Firebase, Offline Storage, Backend, Kotlin, Information Technology, Graphql, React Native, Restful APIs, Jenkins - **Published:** July 7, 2026 - **Apply:** https://www.juju.com/job/00000000gejrew ## About the Role 10+ years of software engineering or mobile development experience. . 5+ years of React Native, JavaScript, and TypeScript experience. . Strong knowledge of React Native architecture, hooks, navigation, rendering, native modules, and state management. . Strong mobile architecture experience, including modular design, reusable components, and scalable code organization. . Experience with performance tuning, debugging, profiling, memory optimization, and crash analysis. . Experience building offline first apps with local databases, secure storage, caching, sync, and background processing. . Experience integrating APIs, GraphQL, Firebase, analytics, crash reporting, and mobile SDKs. . Native Android experience with Kotlin/Java or native iOS experience with Swift/Objective C. . Knowledge of App Store and Play Store deployment, signing, certificates, provisioning, versioning, and rollouts. . Experience with CI/CD tools such as GitHub Actions, Azure DevOps, Fastlane, or Jenkins. . Strong understanding of mobile security, testing frameworks, observability, logging, and production monitoring., Bachelor's degree in Computer Science, Engineering, IT, or equivalent practical experience. . Strong problem solving, debugging, decision making, and communication skills. . Ability to lead technical work and influence teams without formal authority. . Ownership mindset with a passion for building reliable, secure, user centered mobile applications. Preferred Skills . Enterprise scale mobile app experience. . Experience in agriculture, sustainability, field operations, logistics, IoT, geospatial, or data driven domains. . Experience with maps, location services, geofencing, background tracking, camera, Bluetooth, sensors, or device hardware. . Knowledge of accessibility, design systems, monorepos, feature flags, A/B testing, and remote configuration. . Experience with Agile/Scrum teams and cloud platforms such as AWS, Azure, or Google Cloud., + GraphQL + React JavaScript + React Native + Typescript + Agile + Cloud Computing ## Description Excellent opportunity to grow skills and autonomously own your work. From design to implementation, have a strong voice in how the client approaches mobile development and a very large real world impact. . Work on meaningful products supporting agriculture, sustainability, and digital transformation. . Collaborative and innovative engineering environment. . Opportunity to shape mobile platform strategy, architecture, and engineering culture. . Growth through technical leadership, mentorship, and complex product challenges. This role must be performed at our client site in St Louis, MO, however a hybrid working model is acceptable. Your future duties and responsibilities: . Build and maintain cross platform mobile apps using React Native, JavaScript, and TypeScript. . Lead mobile architecture for scalability, performance, reliability, security, and maintainability. . Define coding standards, reusable patterns, shared libraries, and engineering best practices. . Optimize app startup time, memory usage, rendering, network performance, bundle size, and offline behavior. . Integrate REST APIs, GraphQL, Firebase, analytics, crash reporting, push notifications, and third party SDKs. . Build offline first features, including local storage, caching, sync, background processing, and conflict resolution. . Develop native Android or iOS modules when required. . Collaborate with product, design, backend, QA, security, and business teams. . Drive decisions on state management, testing, CI/CD, release processes, and mobile tooling. . Lead app releases, App Store and Play Store readiness, phased rollouts, and production monitoring. . Troubleshoot complex production issues related to crashes, performance, authentication, sync, and devices. . Mentor engineers through code reviews, design reviews, documentation, and technical guidance. . Identify technical debt, platform risks, and opportunities for modernization., Serve as a technical leader and trusted advisor for mobile initiatives. ## Related Videos - [The Road to MLOps: How Verivox Transitioned to AWS](https://www.wearedevelopers.com/videos/1050-the-road-to-mlops-how-verivox-transitioned-to-aws) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [There's an app for that - on the role of cross platform development in the app development ecosystem](https://www.wearedevelopers.com/videos/278-there-s-an-app-for-that-on-the-role-of-cross-platform-development-in-the-app-development-ecosystem) - [Enterprise-Cloud-Native - Fast-Paced Development & Deployment in a Highly Secure Banking Environment](https://www.wearedevelopers.com/videos/671-enterprise-cloud-native-fast-paced-development-deployment-in-a-highly-secure-banking-environment) - [Our GitOps approach for deploying an Identity Provider and an API Gateway in a SaaS company](https://www.wearedevelopers.com/videos/776-our-gitops-approach-for-deploying-an-identity-provider-and-an-api-gateway-in-a-saas-company) ## Related Articles - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)