Senior Android Engineer: Apps with Kotlin & Jetpack

Sii Poland; Kraków; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Solid financial situation

Contracts with the biggest brands

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Profit sharing

Passion Sponsorship program

Regular integration events and trips

Comfortable and well-equipped offices

MySii app

Medical care

Job summary

Sii Poland in Kraków is seeking a Senior Android Developer to design, build, and maintain high-performance mobile applications for millions of users. You will work with cross-functional teams in an Agile environment to shape architecture and deliver scalable, user-centric products.

The role emphasizes modern Android practices, Kotlin, CI/CD, and quality through testing and reviews, with opportunities to influence technical decisions and growth.

Qualifications

• 6+ years of commercial Android development experience.
• Proficient in Kotlin and Android SDK.
• Experience with Jetpack Compose for modern UI.
• Strong knowledge of asynchronous programming with Coroutines.
• Experience with automated testing and CI/CD pipelines.
• Fluent Polish and English for collaboration in international teams.

Responsibilities

• Design, develop, and maintain advanced Android applications with focus on performance and stability.
• Refactor and optimize existing solutions and improve architectural design.
• Build and maintain automated CI/CD pipelines for development, testing, and release.
• Deliver high-quality, testable, and maintainable code and participate in technical decisions.
• Conduct code reviews and promote engineering standards and best practices.
• Create and maintain technical documentation for development and operations.

Skills

Kotlin

Android SDK

Jetpack Compose

Coroutines

Automated testing

CI/CD

Polish and English

Job description

Sii Poland in Kraków is seeking a Senior Android Developer to design, build, and maintain high-performance mobile applications for millions of users. You will work with cross-functional teams in an Agile environment to shape architecture and deliver scalable, user-centric products.

The role emphasizes modern Android practices, Kotlin, CI/CD, and quality through testing and reviews, with opportunities to influence technical decisions and growth.