Mobile Developer

Job Title

Mobile Developer

Description

We are seeking a hands-on Mobile Developer to join an enterprise engineering team based in Sandton, Johannesburg. This is an on-site role (mandatory 8 hours in office) focused on building, maintaining, securing, and supporting enterprise-grade mobile applications for iOS and Android using React Native, Expo, and TypeScript. The role contributes to high-quality mobile delivery by translating business and design requirements into robust technical solutions, integrating with enterprise services, and supporting CI/CD and release processes while maintaining strong engineering discipline.

Location: Sandton, JHB — Work from office mandatory (8 hours in office).
Duration: 6 months (renewal possible).
Note: All checks must be clear prior to engagement.

Responsibilities

• Design, build, and maintain cross-platform mobile applications using React Native, Expo, and TypeScript.
• Implement polished user interfaces from Figma, wireframes, and design systems with attention to accessibility and performance.
• Integrate mobile apps with enterprise RESTful APIs, authentication flows, and secure storage solutions.
• Support enterprise CI/CD pipelines and release processes using Azure DevOps, YAML pipelines, automated builds, signing, and approval workflows.
• Manage monorepo structures, shared packages, dependency management, and mobile workspace tooling.
• Implement and maintain observability and error reporting (Dynatrace, Sentry, Splunk) and support production incident response.
• Ensure mobile security, performance optimization, accessibility, and compliance with enterprise quality gates.
• Author and maintain automated tests; apply TDD/BDD practices and support unit testing and mobile quality checks.
• Collaborate in Agile/Scrum teams, participate in code reviews, and maintain high standards of engineering delivery.
• Support app distribution and lifecycle management via App Store Connect, TestFlight, Google Play Console, and internal distribution channels.
• Leverage AI-assisted development tools responsibly to improve productivity while maintaining code quality and engineering judgement.

Skills

The ideal candidate will demonstrate the technical skills listed below and the ability to work on-site in Sandton for the duration of the contract.

• React Native
• Expo
• TypeScript
• JavaScript
• React
• State management
• React Navigation
• iOS development
• Android development
• Swift
• Kotlin
• Native module development
• Monorepo
• Dependency management
• Mobile workspace tooling
• Azure DevOps
• CI/CD
• YAML pipelines
• App Store Connect
• TestFlight
• Google Play Console
• Mobile app signing and distribution
• RESTful API
• Authentication
• Secure storage
• Dynatrace
• Sentry
• Splunk
• Mobile security
• Performance optimization
• Accessibility
• Observability
• Automated testing
• Unit testing
• TDD
• BDD
• Figma
• Design systems
• Git
• Code review
• Agile
• Scrum
• Release management
• Production support
• AI-assisted development tools
• Azure certifications
• Digital banking
• Payments
• Foreign exchange
• Lending

Qualifications

• Proven experience building and maintaining iOS and Android apps in enterprise environments using React Native, Expo, and TypeScript.
• Strong JavaScript and React fundamentals, including modern state management and navigation patterns.
• Practical experience with enterprise CI/CD tooling (Azure DevOps), automated signing, and mobile release management.
• Experience with observability and error/analytics tools such as Dynatrace, Sentry, or Splunk.
• Demonstrable understanding of mobile security, performance, accessibility, and production support practices.
• Experience integrating with RESTful APIs and implementing secure authentication and storage flows.
• Familiarity with automated testing, TDD/BDD approaches, and mobile test strategies.
• Ability to convert Figma designs and design system components into pixel-perfect, accessible mobile UI.
• Excellent Git, code review, and Agile/Scrum experience.
• All background and security checks must be clear prior to startt