Senior Mobile Engineer

Role Overview

• Develop cross-platform mobile applications using Flutter and Kotlin.
• Write clean, maintainable, and secure code to address complex business problems.
• Prioritize performance, scalability, and maintainability in all development tasks.
• Seamlessly integrate various APIs and SDKs, ensuring reliability and efficiency.
• Focus on delivering a modern, intuitive, and user-friendly experience for merchants across Europe.
• Collaborate with cross-functional teams to align technical solutions with business objectives.
• Actively participate in critical project decisions, including architecture design, framework selection, and tool evaluation.
• Mentor and support team members, fostering a collaborative and growth-oriented environment.
• Continuously improve applications while applying automation best practices to reduce waste and error.
• Work within Agile/Scrum methodologies, ensuring timely delivery, iterative improvements, and collaboration across teams.

Requirements

• Kotlin Multiplatform Experience: Hands-on experience developing and shipping KMP projects, including shared business logic and platform-specific implementations
• Mobile Development: Strong background in either Android (Kotlin) or iOS development with understanding of mobile app architecture patterns
• SDK Development: Experience building SDKs, libraries, or frameworks that other developers consume, with focus on API design and developer experience
• Payment Technology Knowledge: Understanding of contactless payments, NFC technology, or financial transaction processing (preferred but not required for exceptional KMP candidates)
• Advanced Kotlin: Deep expertise in Kotlin language features, coroutines, and multiplatform-specific APIs
• Cross-Platform Architecture: Understanding of shared code strategies, expect/actual patterns, and platform-specific implementations
• API Integration: Experience with RESTful services, secure communication protocols, and third-party API integration
• Testing & Quality: Strong testing practices including unit testing, integration testing, and automated testing frameworks
• Security Awareness: Understanding of secure coding practices, especially relevant to financial/payment applications
• Experience with payment processing systems, EMV standards, or financial technology
• Knowledge of NFC technology, contactless payment protocols, or mobile payment frameworks
• Background in modular architecture, dependency injection, and clean architecture principles
• Experience with CI/CD pipelines and automated deployment for multi-platform projects
• You have experience with design tools such as Figma and Canva
• You’re highly organised with strong project management skills
• You’re a great communicator and collaborator
• You have a growth mindset with eagerness to learn and a hands-on attitude.

Tech Stack

• Android
• Flutter
• iOS
• Kotlin

Benefits

• We trust you, so we offer flexible working hours, as long it suits both you and your team;
• Health Insurance;
• Meal Allowance;
• 25 days of Annual leave (+ Bank holidays);
• Public Transportation Card;
• Frequent team events & activities in the office and outside;
• Office snacks every day;
• Friendly, comfortable and informal office environment.