Senior Full-Stack Mobile Engineer (Kotlin Multiplatform / Java)

Quick Facts

Role focus: Senior Full-Stack Mobile Engineer working across Kotlin Multiplatform (KMP), mobile apps, backend services, APIs, and cloud production systems.

Description

Build digital financial products used daily by millions of customers, processing millions of real-time transactions each month. As a Senior KMP Engineer, you’ll contribute across the stack—from shared cross-platform logic and customer-facing mobile features to backend services, APIs, cloud infrastructure, and production systems.

Responsibilities

• Develop shared business logic across mobile platforms using Kotlin Multiplatform (KMP).
• Design and build backend services and APIs using Java, Kotlin, and Spring Boot.
• Build and enhance customer-facing mobile features used by real customers every day.
• Work with cloud services, CI/CD, observability, monitoring, and production systems.
• Improve scalability, reliability, performance, security, and user experience.
• Collaborate with product, design, architecture, security, and platform teams.
• Drive engineering excellence through technical leadership, mentoring, and best practices.

Requirements

• Commercial experience in mobile application development with Kotlin or Kotlin Multiplatform.
• Deep understanding of modern Android or iOS architectures and software design principles.
• Strong Kotlin skills building production-grade applications.
• Some backend experience with Java, Spring Boot, APIs, and microservices.
• Familiarity with distributed systems and event-driven architectures.
• Experience with CI/CD, automated testing, and production environments.
• Ability to take end-to-end ownership of features from design through production.
• Strong communication and collaboration skills.

Benefits

• Cafeteria benefits package (including private healthcare or a Multisport card).
• Access to learning and language training platforms.
• Company events and birthday celebrations.
• MacBook as the primary work device.