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An established organisation within the financial services sector is seeking a Senior Mobile Developer (React Native) to join their software development team. The successful candidate will be responsible for developing and refining mobile and web applications, improving existing functionality, and contributing to architectural and performance enhancements.Youll collaborate closely with analysts and technical teams to interpret requirements, build wellâ??structured code, diagnose system issues, and ensure optimal application performance. This role requires a selfâ??driven, detailâ??oriented individual who can work effectively in both team and independent settings.Key Responsibilities:Build, test, and deploy mobile applications using React Native.Build and deploy web portals using React.js (TypeScript).Develop and enhance new and existing components.Work with analysts to refine requirements and translate them into technical solutions.Improve code quality through refactoring and bestâ??practice implementation.Create unit tests, integration tests, and technical documentation.Conduct rootâ??cause analysis and resolve system issues.Manage mobile app store deployments (iOS, Android, and Huawei).Perform functional testing and support quality testing phases.Integrate mobile applications with API services.Maintain application servers and support deployment processes.Job Experience and Skills Required:Education:Grade 12 / Matric.IT-related Degree/Diploma OR Matric with 5+ years relevant mobile development experience.Experience:Minimum 5 years mobile development experience in a professional environment.Strong experience integrating mobile apps with API services.Experience building backend API services using .NET Framework.Proficient in relational database design and development.Experience accessing device components (camera, geolocation, etc.).Familiarity with SDLC, Agile methodologies, and development standards.Technical Skills:React Native, JavaScript, and TypeScript.React Native best practices & mobile architecture patterns..NET / C#.NET (advantageous).RESTful APIs, XML, and JSON.SQL Server & relational databases.Mobile store deployment for iOS, Android, and Huawei.Google Services, Firebase, and Sentry.Azure DevOps (repos, CI pipelines, and release management). https://www.executiveplacements.com/Jobs/S/Senior-Mobile-Developer-React-Native-1271146-Job-Search-04-17-2026-00-00-00-AM.asp?sid=gumtree

Executive Placements

Mamelodi

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Overview Senior QA Engineer with strong experience in test automation and a focus on ensuring the quality and reliability of their mobile apps (React Native, iOS, Android, Harmony OS) and backend services (Rails, REST APIs, Sidekiq, PostgreSQL, Heroku/Digital Ocean). As part of an Agile Scrum team, you will work closely with Developers, Product Managers and DevOps to integrate quality into every stage of the development process. As the team grows, you will also play a key role in supporting and guiding Junior QA Engineers.Key Responsibilities:Test Automation & Quality StrategyDesign, develop and maintain automated test frameworks for mobile apps (React Native, iOS, Android, Harmony OS) and backend services (Rails, REST APIs).Build and extend test coverage for UI, API and mobile app workflows, ensuring strong automation for reliable releases.Integrate automated tests into CI/CD pipelines (GitHub Actions, Firebase Test Lab) to ensure efficient, repeatable testing.Explore and implement new testing tools and practices to improve automation and streamline testing processes. Hands-On QA ExecutionPerform automated and exploratory testing across mobile and backend systems, ensuring product stability, performance and scalability.Work closely with developers to ensure comprehensive test coverage for new features and functional requirements.Validate third-party service integrations like Twilio, SendGrid, Huawei Push Kit and Google APIs.Track, document, prioritize and reproduce defects, ensuring timely resolution. Team CollaborationWork within an Agile Scrum team, collaborating with developers, product managers and other stakeholders to ensure quality throughout the development lifecycle.Share knowledge and provide support to junior QA engineers as the team grows, ensuring consistent application of QA best practices.Collaborate with DevOps to improve testing processes and integrate tests into the deployment pipeline.Collaborate with Project Managers in task scoping to ensure developers follow test-driven development principles.Process ImprovementAdvocate for shift-left testing, ensuring that testing starts early and continues throughout the development process.Continuously evaluate and improve QA processes, focusing on increased automation, coverage and efficiency.Participate in sprint reviews, retrospectives and other Agile ceremonies to ensure quality is prioritized.Coordinate with DevOps on creating and maintaining compliance processes and documents.Required Qualifications5+ years in QA engineering, with strong experience in test automation.Expertise in React Native, iOS, https://www.executiveplacements.com/Jobs/S/Senior-QA-Engineer-1259260-Job-Search-04-13-2026-00-00-00-AM.asp?sid=gumtree

Executive Placements

Kensington

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Basic Requirements:Formal Tertiary education: Grade 12Diploma or Degree in:Information TechnologyComputer ScienceSoftware testingEngineering or a related field.Experience:3 to 6+ years experience in software quality assurance, including practical exposure to both manual and automated testing.Experience testing both web and mobile applications is essential.Languages: English required.Drivers Licence: Code 8- (minimum) Job Objectives:The Technical QA Engineer owns quality assurance across the ODIN Checkpoint web and mobile platform. The role spans manual testing, test design and a strong drive toward automation, reducing repetitive effort, accelerating regression cycles and increasing release confidence.The appointee must test beyond the happy path, covering role-based workflows, mobile sync and offline behaviour, API data flows and integration touchpoints. They will work closely with product and development teams to validate features, verify fixes and maintain a structured, scalable QA practice. Main Tasks and Responsibilities:Test Planning & Test DesignTranslate feature specs, user stories and tickets into comprehensive test scenarios covering happy paths, corner cases, negative cases and regression impact across web and mobile.Manual Functional TestingExecute manual testing of features, bug fixes and releases. Validate outcomes against acceptance criteria and identify defects, gaps and regressions.Test AutomationBuild, maintain and expand automated test suites (UI, API, regression, smoke) using modern frameworks. Prioritise automation of high-value and high-frequency test areas to maximise coverage and speed.Web & Mobile Quality AssuranceValidate behaviour across browsers, devices, app states and network conditions, including offline transitions, sync reliability, role-based flows and notification handling.Defect Reporting & VerificationLog defects with clear reproduction steps, evidence and severity. Retest fixes and confirm resolution quality before sign-off.Release & Regression SupportExecute structured regression, smoke and sanity test cycles per release. Identify risk areas, validate critical workflows and provide clear release readiness sign-off.QA Process ImprovementDrive QA maturity through reusable test packs, automation strategy, clear documentation and continuous process improvement. Preference will be given to https://www.jobplacements.com/Jobs/O/Odin-Checkpoint-Technical-QA-Engineer-1280297-Job-Search-4-13-2026-8-23-33-AM.asp?sid=gumtree

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"mobile app developers" in South Africa

mobile app developers in South Africa (53 results)

Results for mobile app developers in "mobile app developers" in South Africa in South Africa