IT
Intermediate Kotlin Developer
Hire Resolve
Johannesburg, Gauteng
Permanent
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Posted 02 October 2025 - Closing Date 02 December 2025

Job Details

Job Description

Hire Resolve's client is looking for an Intermediate Kotlin Multi-Platform Developer to join a dynamic team rebuilding a core banking application for a leading UK Bank. This is a greenfield project using modern mobile development practices, including Kotlin Multiplatform Mobile (KMM), Jetpack Compose, A/B testing, and AI-assisted UI generation. The ideal candidate will have strong Kotlin experience, exposure to cross-platform development, and a practical, problem-solving mindset.

Responsibilities: 

  • Develop and maintain high-quality Android and iOS applications using Kotlin Multiplatform Mobile (KMM).

  • Collaborate with a small, talented team of developers, architects, and testers.

  • Implement modern UI using Jetpack Compose and follow platform-specific design guidelines.

  • Integrate and manage A/B testing frameworks and feature flags for controlled rollouts.

  • Write clean, testable code and participate in code reviews.

  • Contribute to CI/CD pipelines and automated testing processes.

  • Work closely with product teams to analyze experiment results and optimize features.

Requirements: 

  • Kotlin & Mobile Development:

    • Strong practical experience with Kotlin for Android.

    • Exposure to iOS development concepts or KMM.

    • Understanding of Android/iOS app lifecycle and UI guidelines.

  • Architecture & Modern Practices:

    • Experience with modern architectures (MVVM, MVI, Clean Architecture).

    • Proficiency in Kotlin Coroutines and Flow for asynchronous programming.

    • Knowledge of RESTful APIs, Retrofit, JSON parsing, and dependency injection (Hilt/Koin).

  • A/B Testing & Feature Experimentation:

    • Hands-on experience with A/B testing tools (Firebase Remote Config, Optimizely, LaunchDarkly, etc.).

    • Familiarity with feature flags and experiment-driven development.

  • Testing & CI/CD:

    • Strong unit and UI testing skills (JUnit, Espresso, MockK).

    • Experience with mobile CI/CD tools (GitHub Actions, Bitrise, Jenkins, etc.).

    • Proficient with Git and collaborative code reviews.


Contact Hire Resolve for your next career-changing move.
Our client is offering a highly competitive salary for this role based on experience.
Apply for this role today, contact Gaby Turner at [email protected] or on LinkedIn
You can also visit the Hire Resolve website: hireresolve.us or email us your CV: [email protected]  
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