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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on developing mobile solutions in the logistics and digital services sector supporting millions of users. Key technologies include Kotlin, Android SDK, Jetpack Compose, Coroutines and CI/CD automation and testing practices. Responsibilities cover designing, developing, and optimizing Android applications, building and maintaining CI/CD pipelines, and participating in technical decisions and code reviews.
from: 28 August 2026
to: 27 September 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote • hybrid • full office
Białystok, Centrum
Requirements
Expected technologies
Android
Kotlin
Android SDK
Jetpack Compose
Coroutines
Our requirements
- At least 6 years of commercial experience in Android application development
- Strong proficiency in Kotlin and hands-on experience with the Android SDK
- Practical experience building modern user interfaces with Jetpack Compose
- Solid knowledge of asynchronous programming and concurrency using Coroutines
- Experience with automated testing, CI/CD practices, and maintaining scalable mobile applications
- Fluent communication skills in both Polish and English, enabling effective collaboration in an international environment
Your responsibilities
- Designing, developing, and maintaining advanced Android applications with a focus on performance, stability, and responsiveness
- Enhancing existing solutions through refactoring, code optimization, and continuous architectural improvements
- Building and maintaining automated CI/CD pipelines to streamline development, testing, and release processes
- Delivering high-quality, testable, and maintainable code while contributing to technical decision-making
- Participating in code reviews and promoting engineering standards, best practices, and software quality
- Creating and maintaining technical documentation to support development and operational processes
About the project
Join a long-term product development initiative in the logistics and digital services sector, focused on creating mobile solutions that support millions of everyday users. As a Senior Android Developer, you will play a key role in designing, building, and improving high-performance mobile applications, working closely with cross-functional teams in an agile environment. This position offers the opportunity to influence technical decisions, contribute to software architecture, and help deliver reliable, scalable, and user-centric products.
This is how we work on a project
- Continuous Deployment
- Continuous Integration
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.
Białystok, Centrum
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