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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on developing new features and maintaining a native Android mobile application. Key stack includes Kotlin Multiplatform (KMP), Kotlin and Java, with architectures like MVVM and Clean Architecture. Main responsibilities are delivering test-covered code, participating in code reviews, documenting technical specs, collaborating with cross-functional teams and improving app performance and usability. Required minimum 5 years Android experience, CI/CD and Git knowledge, and fluent Polish and English.
from: 30 October 2026
to: 29 November 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:hybrid • full office
Poznań, Wilda
Requirements
Expected technologies
Kotlin Multiplatform (KMP)
Android
Our requirements
- Minimum 5 years of experience in Android development
- Strong expertise in Kotlin Multiplatform (KMP) and Android
- Proficiency in Kotlin and Java, with the ability to refactor existing code
- Understanding of mobile software architectures, including MVVM, Clean Architecture, and SOLID principles
- Experience with Continuous Integration and Continuous Deployment processes, along with a good understanding of Git
- Familiarity with UI/UX design principles and Material Design
- Fluent Polish and English
- Residency in Poland
Optional
- Experience with agile development methodologies
- Knowledge of testing frameworks and tools for Android development
Your responsibilities
- Developing high-quality, test-covered code for scalable and maintainable applications
- Participating in code reviews to ensure adherence to best practices and coding standards
- Documenting technical specifications and installation procedures for applications
- Collaborating with cross-functional teams to define, design, and ship new features
- Continuously discovering and implementing new technologies to enhance development efficiency
About the project
Join our team as an Android Developer and become part of a challenging mobile development project. You will work on a modern native Android application, developing new features and continuously improving its quality, performance, and usability. Working closely with other developers and cross-functional teams, you will have the opportunity to influence technical solutions and contribute to the further development of the application.
What we offer
- Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
- Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
- We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
- Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
- Comfortable workplace – class A offices or remote work
- Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
- PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
- Investment in your growth – meetups, webinars, training platform and technology blog – you choose
- Fantastic atmosphere created by all Sii Power People
Recruitment stages
- 1.Send your CV
- 2.Talk to us about your expectations
- 3.Learn more about our projects and choose the best
- 4.Start your adventure with Sii!
Sii Sp. z o.o.
Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.
This is how we work
Senior Android Developer (f/m/x)
I apply to:
Sii Sp. z o.o.
Poznań, Wilda
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