Senior Android Engineer: Kotlin & Jetpack Compose

Revolut; Poland; On-site; PLN 340,000 - 520,000; Full time

Job summary

Revolut is seeking a Mid/Senior Android Developer with strong native Android and Kotlin experience to contribute to high-scale, live B2C applications. This hands-on role requires deep technical knowledge of Android architecture, concurrency, and end-to-end delivery.

You will own features from design through release, collaborate with product, design and engineering teams, and help optimize performance, test coverage, and production monitoring in a fintech environment.

Qualifications

• 4+ years of native Android/Kotlin experience with a CS/STEM degree, or 6+ years of relevant software engineering experience without a CS/STEM degree.
• Senior candidates: 5+ years with a CS/STEM degree or 8+ years without a degree.
• Recent experience (within the last 2–3 years) focused primarily on native Android development with Kotlin.
• Strong knowledge of Kotlin, Jetpack Compose, Views/XML, MVVM, Clean Architecture, Coroutines, Flow, and Dependency Injection (Dagger 2, Hilt or Koin).
• Experience designing and working with multi-module architecture, Domain/Data layer separation, DTO mappers, Room, SQLite, RecyclerView and DiffUtil.
• Strong understanding of concurrency, async data streams, thread safety, memory management, performance optimisation, and foundational computer science/data structures.
• Proven ownership of new features involving architecture and backend integration rather than maintenance, support, debugging, or UI-only work.
• Hands-on ownership across the application lifecycle, including architecture, development, CI/CD, Google Play releases, crash/error tracking and production monitoring.
• Experience with unit, UI or visual regression testing, using tools such as JUnit, MockK/Mockito, Espresso, Robolectric or Screenshot Testing.
• Experience working with high-scale B2C Android applications published on Google Play, ideally with 100k–1M+ users, with 1M+ monthly active users particularly relevant.
• Strong English communication skills and experience collaborating with Product Managers, Designers and Engineers in fast-paced, cross-functional teams.

Responsibilities

• Work on high-scale, live B2C Android applications, delivering architecture-driven features.
• Own features end-to-end from design through release, including testing, monitoring, and backend integration.
• Collaborate with Product Managers, Designers, and Engineers in fast-paced, cross-functional teams.
• Contribute to CI/CD, Google Play releases, crash/error tracking and production monitoring.

Skills

Native Android/Kotlin

Kotlin

Jetpack Compose

Views/XML

MVVM

Clean Architecture

Coroutines

Flow

DI (Dagger 2/Hilt/Koin)

Multi-module architecture

Domain/Data layer

DTO mappers

Room

SQLite

RecyclerView

DiffUtil

Concurrency

Memory management

Performance optimisation

Feature ownership

Backend integration

CI/CD

Google Play releases

Crash/error tracking

Testing (JUnit/Mockito/Espresso)

High-scale B2C apps

English communication

Education

CS/STEM degree

Tools

Android Profiler

Logcat

JUnit

Mockito

Espresso

Robolectric

Job description

Revolut is seeking a Mid/Senior Android Developer with strong native Android and Kotlin experience to contribute to high-scale, live B2C applications. This hands-on role requires deep technical knowledge of Android architecture, concurrency, and end-to-end delivery.

You will own features from design through release, collaborate with product, design and engineering teams, and help optimize performance, test coverage, and production monitoring in a fintech environment.