Android Engineer — Kotlin + Jetpack Compose for Retail Apps

Reply; Katowice; Hybrid; PLN 150,000 - 210,000; Full time

Benefits offered by this job

Benefits budget 550 PLN monthly

Medical care

Meal tickets

Sports cards

Cinema tickets

Shop vouchers

Language courses

Training programs

Networking events

Job summary

OBI Smart Technologies is seeking an experienced Android developer to evolve the heyOBI app, connecting digital shopping with in-store experiences within a large retail ecosystem.

You will work with engineers, UX/UI designers, product owners and architects to deliver reliable mobile experiences covering product discovery, shopping, customer accounts, and loyalty benefits for international markets.

Qualifications

• Completed university degree in Computer Science or a comparable technical field.
• 3-5 years of professional Android development experience.
• Strong proficiency in Kotlin and experience with Jetpack Compose.
• Experience with GraphQL and REST APIs, ideally using Ktor.
• Knowledge of local persistence and caching (Room/DataStore).
• Familiarity with modular app design, dependency injection, and Android lifecycle.
• Experience with WebView, deep links, push notifications, and background processing.
• Experience with automated unit and UI testing, debugging and performance tuning.
• Familiarity with Git, Gradle, CI/CD and Google Play release processes.
• Fluent English and Polish; willing to work in a hybrid model in Katowice.

Responsibilities

• Develop and maintain Android features using Kotlin and Jetpack Compose.
• Translate business requirements and UX/UI designs into mobile experiences.
• Integrate GraphQL and REST APIs for product info, store availability, and loyalty services.
• Implement authentication, session management, and network error handling.
• Manage asynchronous operations with Kotlin Coroutines and Flow.
• Develop and maintain local persistence, caching, and data synchronization.
• Support navigation across native screens, embedded web content, deep links, and push notifications.
• Ensure quality through automated testing, code reviews, performance optimization, and production issue analysis.
• Collaborate on localisation, market-specific requirements, CI/CD, and Google Play releases.

Skills

Kotlin

Jetpack Compose

Android Architecture

English communication

Polish communication

Education

Bachelor's degree in Computer Science

Tools

Ktor

GraphQL

REST APIs

Room

DataStore

Git

Gradle

CI/CD

Job description

OBI Smart Technologies is seeking an experienced Android developer to evolve the heyOBI app, connecting digital shopping with in-store experiences within a large retail ecosystem.

You will work with engineers, UX/UI designers, product owners and architects to deliver reliable mobile experiences covering product discovery, shopping, customer accounts, and loyalty benefits for international markets.