Senior Mobile Developer (React Native)

IQ Business Group; Sandton; On-site; ZAR 500,000 - 700,000; Full time

Job summary

IQ Business Group in Sandton, Gauteng is seeking a highly skilled Senior Mobile Developer with strong React Native experience. You will design, develop, and maintain secure, scalable mobile applications that support digital banking initiatives and enhance customer experiences.

The ideal candidate has extensive experience in mobile architecture and collaboration within enterprise environments. This role offers the chance to work on innovative digital banking solutions in a fast-paced environment.

Qualifications

• Strong experience developing mobile applications using React Native.
• Solid experience with JavaScript and TypeScript.
• Experience integrating REST APIs and asynchronous data handling.
• Understanding of mobile application architecture and design patterns.

Responsibilities

• Design, develop, and maintain mobile applications using React Native.
• Integrate mobile applications with RESTful APIs and backend services.
• Implement secure coding practices aligned with banking standards.
• Collaborate with UX/UI designers to deliver customer-centric mobile experiences.

Skills

React Native

JavaScript

TypeScript

REST APIs

Redux

Agile/Scrum

Git

Education

Bachelor’s Degree or Diploma in Computer Science

Tools

CI/CD

Jest

Detox

Cypress

Job description

# Senior Mobile Developer (React Native)iqbusiness South AfricaSandton, GautengContractApply NowView All JobsPosted **2 JUNE 2026** - Closing Date### Job DescriptionWe are seeking a highly skilled Senior Mobile Developer with strong React Native experience to join a fast-paced banking technology environment. The successful candidate will be responsible for designing, developing, and maintaining secure, scalable, and high-performing mobile applications that support digital banking initiatives and enhance customer experience.This role requires a strong engineering mindset, experience working within enterprise environments, and the ability to collaborate closely with product owners, architects, QA teams, and backend developers to deliver world-class mobile solutions. **Key Responsibilities*** Design, develop, and maintain mobile applications using React Native for iOS and Android platforms.* Build reusable, scalable, and maintainable frontend components and mobile architectures.* Integrate mobile applications with RESTful APIs, backend services, and third-party platforms.* Ensure application performance, responsiveness, reliability, and security standards are maintained.* Participate in system design discussions and contribute to technical architecture decisions.* Implement secure coding practices aligned with banking and financial industry standards.* Collaborate with UX/UI designers to deliver intuitive and customer-centric mobile experiences.* Conduct code reviews, mentor junior developers, and promote engineering best practices.* Troubleshoot production issues and support continuous improvement initiatives.* Work within Agile/Scrum delivery teams and contribute to sprint planning and estimations.* Collaborate with DevOps teams on CI/CD pipelines, automated deployments, and release management.* Maintain high test coverage through unit testing, integration testing, and automation practices.**Required Skills & Experience Technical skills** * Strong experience developing mobile applications using React Native.* Solid experience with JavaScript and TypeScript.* Experience integrating REST APIs and working with asynchronous data handling.* Strong understanding of mobile application architecture and design patterns.* Experience with state management libraries such as Redux or Context API.* Knowledge of native mobile development concepts for Android and iOS.* Experience with mobile security best practices, authentication, and encryption.* Familiarity with CI/CD pipelines and DevOps practices.* Experience with Git version control and collaborative development workflows.* Strong debugging, performance optimization, and problem-solving skills.**Banking/Enterprise experience** * Previous experience within banking, fintech, insurance, or highly regulated enterprise environments.* Understanding of secure transactional systems and customer-facing digital platforms.* Experience working on high-availability and scalable systems.**Advantageous skills** * Experience with native Android (Kotlin/Java) or iOS (Swift) development.* Exposure to cloud platforms such as Azure or AWS.* Experience with automated testing frameworks such as Jest, Detox, or Cypress.* Knowledge of microservices and API-driven architectures.* Experience with mobile analytics and monitoring tools.* Exposure to biometric authentication and secure mobile payment integrations.**Qualifications*** Bachelor’s Degree or Diploma in Computer Science, Information Technology, Software Engineering, or related field.* Relevant mobile development certifications are advantageous.