- Design, develop, and maintain the mobile service layer (Backend-for-Frontend) supporting large-scale mobile applications
- Deliver secure, reliable, and high-performing Server Side APIs for Real Time consumer experiences
- Write clean, maintainable code and contribute to code reviews, refactoring, and continuous improvement initiatives
- Collaborate with mobile, product, and design teams to define solutions that enhance usability and functionality
- Troubleshoot and optimize application performance for responsiveness and scalability
- Create robust unit tests and integration tests to ensure software reliability
- Manage asynchronous processing, error handling, and performance optimization in distributed systems
- Support Legacy system integrations and modernize existing codebases when required
- Follow CI/CD best practices and contribute to team development pipelines and build systems
- Actively share ideas, propose improvements, and participate in solution design discussionsProven experience building Server Side applications with strong understanding of modern Back End development practices
- Proficiency in Kotlin or related JVM languages (Java, Scala, etc.)
- Practical knowledge of RESTful and GraphQL (GQL) API design and integration
- Hands-on experience with Gradle or similar build tools
- Solid understanding of asynchronous programming, thread management, and performance optimization
- Experience working with CI/CD pipelines and automated testing frameworks
- Strong debugging and problem-solving skills with attention to system scalability and maintainability
Nice to Have Skills
- Experience designing or integrating RAML-based documentation into API workflows
- Familiarity with Legacy system modernization or integration within enterprise environments
- Understanding of cloud-native development patterns or containerized deployment workflows (eg, Docker, Kubernetes)
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Java/Kotlin Developer | Hybrid, London | Inside IR35 employer: Korn Ferry
Korn Ferry Project Solutions is an exceptional employer, offering a dynamic work environment in the heart of London where innovation meets collaboration. With a strong focus on employee growth and development, we provide opportunities to lead impactful projects in cyber security while enjoying competitive compensation and the flexibility of outside IR35 contracts. Our inclusive culture fosters teamwork and encourages professional advancement, making it an ideal place for those looking to make a meaningful contribution in the insurance sector.