Android Developer (Kotlin, Jetpack Compose)
About the role
We are looking for an
Android developer
who wants to develop and evolve the
heyOBI app
, connecting
digital shopping
with the in-store experience within a large
retail ecosystem
. You will contribute to intuitive and reliable
mobile experiences
covering product discovery, shopping, customer accounts, and loyalty benefits. You will collaborate closely with engineers, UX/UI designers, product owners, and architects to deliver maintainable solutions for international markets.
Your key responsibilities include:
- Develop and maintain
Android
features using
Kotlin and Jetpack Compose
, integrating with existing Android Views where needed.
- Translate business requirements and UX/UI designs into accessible, responsive, and user-friendly mobile experiences.
- Integrate
GraphQL and REST APIs
for product information, store availability, customer accounts, shopping lists, and loyalty services.
- Implement reliable
authentication, session management, and network error handling
.
- Manage asynchronous operations and application state using
Kotlin Coroutines and Flow
.
- Develop and maintain
local persistence, caching, and data synchronisation
to ensure consistent behaviour under varying network conditions.
- Support seamless navigation across
native screens, embedded web content, deep links, and push notifications
.
- Ensure application quality through
automated testing, code reviews, performance optimisation, and production issue analysis
.
- Collaborate on
localisation, market-specific requirements, CI/CD, and Google Play releases
.
Benefits
- Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose
medical care package, meal tickets, sports cards
(we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms),
cinema tickets, shop vouchers, discounts and many more.
- Language Courses – you'll have access to a
multi-language learning platform
enabling you to practice your language skills and learn new ones!
- Regular and systematic further
training opportunities - both internally and from external
providers
. We support your ongoing learning and development.
- Cooperation within an
internal community
is our everyday reality. We have
networking events, coding challenges, and company parties
for different occasions.
Qualifications
- Completed university degree in
Computer Science
or a comparable technical field.
- 3-5 years of professional Android development experience , with strong proficiency in
Kotlin
and experience maintaining and evolving a production application.
- Hands-on experience with
Jetpack Compose
, a solid understanding of the
Android SDK and application lifecycle
, and familiarity with existing
Android Views and Fragments
.
- Practical experience with
Kotlin Coroutines and Flow
, including asynchronous operations and reliable UI state management.
- Experience integrating
GraphQL and REST APIs
, ideally using
Ktor
, with a good understanding of authentication, session management, and network error handling.
- Experience with
local persistence and caching
, ideally using
Room and DataStore
, and maintaining consistency between local and backend data.
- A good understanding of
modular application design, separation of concerns, and dependency injection
.
- Familiarity with
WebView integration, deep links, push notifications, and Android background processing
.
- Experience with
automated unit and UI testing
, debugging, crash analysis, and performance optimisation.
- Familiarity with
Git, Gradle, CI/CD, and Google Play release processes
.
- Strong communication skills in
English
and
Polish
, with readiness to work in a
hybrid model in Katowice
.
Nice to have:
- Experience in
retail, e-commerce, or loyalty applications
.
- Familiarity with
Kotlin Multiplatform or Compose Multiplatform
.
- Experience with
Firebase, ML Kit, or CameraX
.
- Knowledge of
accessibility and localization
for international apps.
About OBI Smart Technologies
WHO ARE WE:
We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail.
OUR MISSION:
"We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer."
