Senior Kotlin Multiplatform Developer

Quick Facts

• Contract: 12 months (B2B), with possible extensions
• Work model: Remote, with 1–2 meetings per month at the client site (often Warsaw)
• Start: ASAP
• Focus: Senior Kotlin Multiplatform (KMP) mobile development for electronic business banking

Description

You will join a team responsible for the development and maintenance of mobile applications built on a shared codebase for Android and iOS. The role involves designing, implementing, and evolving cross-platform components, working closely with business and technical teams.

Responsibilities

• Write high-quality Kotlin Multiplatform code
• Design and develop shared mobile app components
• Create technical documentation
• Perform unit testing
• Integrate mobile apps with backend services
• Collaborate with Business Analysts, Java developers, IT Architects, and other team members
• Coordinate with the business client
• Participate in code reviews and refactoring of existing solutions

Requirements

• Minimum 5 years of professional experience in mobile app development
• Very good knowledge of Kotlin
• Commercial experience with Kotlin Multiplatform
• Experience with coroutines, RxJava, network communication, and API integration
• Knowledge of MVI and Clean Architecture
• Experience with Dependency Injection using Koin
• Experience building user interfaces using Jetpack Compose and Compose Multiplatform
• Knowledge of Git and version control systems
• Familiarity with software engineering best practices and Clean Code principles
• Experience with code reviews and refactoring
• English proficiency for working with technical documentation
• Experience with Jira and Confluence
• Analytical mindset
• Ability to work independently and take responsibility
• Team collaboration and communication skills

Benefits

• 12-month B2B contract with possible extensions
• Remote work with occasional onsite meetings (often in Warsaw)