Senior Mobile Application Developer

Your key responsibilities:

• Creating a new application based on microservices
• Collaborate with agile team members to achieve project and client goals
• Participation in design and test activities

Skills and attributes for success:

• Strong knowledge of Kotlin Multiplatform (KMP) for building and maintaining shared business logic, networking, and data layers across Android and iOS.
• Ability to design and implement integration and end‑to‑end tests using multiplatform testing tools
• Deep understanding of backend API interaction, including serialization, error handling, retries, and validating API contract compatibility.

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• Experience collaborating closely with backend teams on API schemas, authentication flows, versioning, and ensuring consistency between mobile client expectations and backend behavior.
• Competence in integrating tests into CI pipelines to ensure deterministic, reliable, and high‑coverage test execution for shared mobile code.
• Experience with source code management, continuous integration and automated deployment
• Very good English language verbal and written communication
• Experience working in international projects
• Experience in agile / scrum methodology

To qualify for the role, you must have:

• Bachelor's degree in Engineering, IT, Science, other Technical qualification
• 3+ years in a corporate IT environment in a similar positions

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• Strong communication skills

Ideally, you’ll also have

• Certificates proving certain skills: Kotlin, Java, Spring, SQL, AWS or Azure Cloud will be an additional advantage

Offer:

• Location: 100% remote
• Start: ASAP
• Employment: B2B contract with apreel
• Rate: 160 170 zł/h + VAT