Mobile Developer – iOS & Android (Swift/Kotlin)

About the role

We are looking for a Mobile Developer to design, build and maintain high‑performance native iOS and Android applications that serve millions of users in the fintech and payments space. You will work on a platform that processes billions of financial transactions each year and supports the movement of trillions of dollars worldwide.

Key responsibilities

• Transform existing React Native apps to a modern native architecture using Swift and Kotlin.
• Develop new features and maintain the current codebase for iOS (Swift) and Android (Kotlin) applications.
• Implement robust state management, architecture patterns, and secure data handling.
• Optimize app performance, memory usage, battery consumption and support multi‑language localization.
• Manage build pipelines, CI/CD, push notifications, analytics and ensure PCI and security compliance.
• Participate in code reviews, sprint planning and collaborate with UI/UX, backend and QA teams in an Agile environment.

Required profile

• 5+ years of professional mobile development experience.
• 4+ years of experience with native Android (Kotlin) and/or iOS (Swift) development.
• Strong understanding of mobile architecture, state management and design patterns.
• Experience with RESTful APIs, asynchronous programming and mobile security standards.
• Proven ability to work in Agile/Scrum teams.

Required skills

• Swift
• Kotlin
• React Native
• JavaScript
• RESTful APIs
• Asynchronous programming
• Encryption & data protection
• PCI compliance
• CI/CD pipelines
• Git
• Analytics tools & push notification services
• Agile/Scrum methodology