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Responsibilities:Build, test, and deploy mobile apps using React Native.Develop web portals using React.js and TypeScript.Support existing functionality and develop new components.Understand product and domain elements. Collaborate with business analysts to refine and implement requirements.Refactor and improve code to maintain adaptability and long-term maintainability.Work effectively both independently and within a team, adhering to software development standards and processes.Evaluate and improve application performance and high availability.Create unit and integrated system tests to ensure developed functionality works as intended.Produce technical documentation explaining system components and usage.Perform root cause analysis on bugs and implement fixes in an integrated system.Deploy applications on servers when required.Execute functional test scenarios (development testing).Analyse and enhance existing code and system functionality according to business needs.Manage mobile app stores, developer accounts, and related services.Requirements:Grade 12 / Matric with a relevant tertiary qualification in IT or Computer/Engineering Sciences, or Matric with at least 5 years of relevant development experience.Minimum 5 years experience as a Mobile Developer in a software development environment.Experience using API services to integrate with mobile applications.Experience building API services (.NET Framework) for mobile integration.Experience designing and maintaining relational databases.Proficiency in accessing mobile device components (camera and geolocation) and deploying these features.Ability to mentor team members and work collaboratively.Solid understanding of SDLC processes, tools, and Agile software development methodologies.Skills & Technologies:React Native, React.js, JavaScript, and TypeScriptC#.NET and Microsoft .NET FrameworkMobile store deployments: iOS, Android, and HuaweiAPI integration: Web/RESTful services, XML, and JSONRelational databases: Microsoft SQL ServerAzure DevOps: Repos, CI pipelines, and releasesStrong understanding of OOP principles, design patterns, and best practicesExperience with Google Services, Firebase, and SentryTools: Visual Studio, VS Code, Android Studio, XCode, and SoapUI/PostmanAdvantageous:Experience with .Net Core, Web API, and MVCKnowledge of security vulnerabilities and impact on solutionsExperience monitoring and optimizing mobile app performance and security https://www.executiveplacements.com/Jobs/S/Senior-Mobile-Developer-React-Native-1271503-Job-Search-03-13-2026-00-00-00-AM.asp?sid=gumtree

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