Senior Android Engineer – FinTech Platform (Kotlin / Jetpack Compose)

Peoplemore; Kraków; Hybrid; PLN 165,000 - 234,000; Full time

Benefits offered by this job

Hybrid working model

Private medical care

Sports card

Training courses

International projects

Job summary

People More seeks a Senior Android Engineer for a FinTech platform. You will design, build, and maintain production-grade Android apps using Kotlin, Jetpack Compose, and modern architecture across Android View systems.

Collaborate with engineering and product teams, ensure quality through tests and CI/CD, and contribute to performance optimization and security across hybrid work locations in Kraków/Warsaw. Strong English and Polish required.

Qualifications

• 5+ years of professional native Android development with Google Play releases.
• 4+ years with Kotlin and Jetpack Compose and/or Android View system.
• 3+ years of Android testing with JUnit, Espresso, and Compose Testing.
• Strong Kotlin skills including Coroutines, Flow, sealed classes, and extensions.
• Experience with Clean Architecture, MVVM or MVI and modular design.
• Hands-on with dependency injection (Hilt or Dagger 2).
• Experience with Room, EncryptedSharedPreferences and Android Keystore.
• Knowledge of Retrofit and OkHttp with certificate pinning and structured error handling.
• Experience with Android Profiler and Perfetto for performance tuning.
• Familiar with Gradle-based CI/CD pipelines and automated signing.
• Ability to read Java in legacy apps and integrate third-party SDKs.
• Experience implementing feature flags and structured event tracking.
• Very good English and Polish.

Responsibilities

• Design, develop, and maintain production-grade Android architecture with modular components.
• Build native Android apps using Kotlin, Jetpack Compose, and the Android View system.
• Implement async operations and state management with Coroutines and Flow.
• Develop data persistence with Room, EncryptedSharedPreferences, and Android Keystore.
• Participate in PRDs, specs, testing, deployments, and event tracking.
• Create unit and UI tests with JUnit, Espresso, and Compose Testing; monitor performance.
• Use Perfetto/Android Profiler to optimize CPU, memory and UI speed.
• Maintain crash/ANR stability with Crashlytics and regression minimization.
• Improve CI/CD processes with Gradle and GitHub Actions.
• Integrate native Android with web experiences via WebView, App Links, and Deep Linking.
• Collaborate with Engineering and Product to define requirements and backlog.

Skills

Android native dev

Kotlin

Jetpack Compose

Android testing

MVVM / Clean Architecture

Hilt / Dagger

Retrofit / OkHttp

Room / EncryptedSharedPreferences / Ke

Android Profiler

CI/CD with Gradle/GitHub Actions

Tools

Gradle

GitHub Actions

Crashlytics

Perfetto

Job description

Hello,

We are called People More because we treat our employees with respect, but also because the projects we work on are for people and should be easy and pleasant to use. We are technological, but we look at the bigger picture :)

The company is made up of people with a huge client base in the country and abroad, for whom we build projects from scratch (UX, UI, frontend, backend, mobile) or in part. We work directly for our clients and also support our partners in their own solutions. This ensures a wide range of projects and the ability to change! We work with clients all over the world.

Senior Android Engineer – FinTech Platform (Kotlin / Jetpack Compose)

Your duties will include

• Design, develop, and maintain the architecture of a production-grade Android application, ensuring well-defined layers, modular components, and an efficient Gradle build structure.
• Build and enhance native Android applications using Kotlin, Jetpack Compose, and the Android View system
• Implement asynchronous operations and effective state management with Kotlin Coroutines and Flow.
• Develop data persistence and security mechanisms using Room, EncryptedSharedPreferences, and Android Keystore.
• Participate in the entire software development lifecycle, including PRD preparation, technical specifications, testing, feature-flag-based deployments, and structured event tracking.
• Create and maintain automated unit and UI tests using JUnit, Espresso, and Compose Testing.Monitor, analyze, and optimize application performance using Android
• Profiler and Perfetto, particularly in the areas of CPU utilization, memory management, and UI responsiveness.
• Ensure high production stability by identifying and resolving crashes and ANRs with tools such as Crashlytics, while minimizing regression risks.
• Develop and improve CI/CD processes using Gradle, GitHub Actions, or comparable automation solutions.
• Implement and maintain integrations between native Android functionality and web-based experiences, including WebView, Custom Tabs, App Links, and Deep Linking.
• Work closely with Engineering and Product Managers to define requirements, manage the team backlog, and propose effective Android-specific solutions.
• Collaborate with backend development teams on API contracts, authentication mechanisms, and event schemas.
• Support production incident resolution and contribute to root cause analysis and post-incident reviews when necessary

Requirements That Must Be Met

• At least 5 years of professional experience in native Android development, including applications released through Google Play.
• Minimum 4 years of hands‑on experience with Kotlin and Jetpack Compose and/or the Android View system.
• At least 3 years of experience in Android testing using JUnit, Espresso, and Compose Testing.
• Strong proficiency in Kotlin, including Coroutines, Flow, sealed classes, and extension functions.
• Practical production experience with Jetpack Compose and the Android View system.
• Solid understanding of architectural approaches such as Clean Architecture, MVVM, and/or MVI, including modular application design and separation of concerns.
• Hands‑on experience with Hilt or Dagger 2, including dependency injection, component lifecycles, and scope management.
• Experience working with Room, EncryptedSharedPreferences, and Android Keystore.
• Knowledge of Retrofit and OkHttp, including certificate pinning and structured error‑handling mechanisms.
• Experience analyzing and improving Android application performance using Android Profiler and Perfetto.
• Familiarity with Gradle-based CI/CD pipelines, including automated application signing and delivery.
• Ability to understand and work with Java code, particularly in legacy applications and third‑party SDK integrations.
• Experience implementing feature flags and structured event tracking within mobile applications.
• Very good English and Polish

What We Offer

• We are open and honest and we solve problems instead of generating them.
• Maybe it’s obvious, but we really respect our employees and associates. We used to be software developers, too, and we appreciate that job!
• A small team
• An international working environment and international projects
• Private medical care
• Sports card
• Training courses
• Hybrid working model: preferably 1 day per week in the Warsaw or Cracow office.

Why it’s a good idea to work with People More?

• If you are not satisfied with your work or your tasks, we’ll find a way out together!
• If you get bored, we will offer you a new product and new, fascinating tasks
• We will work on your brand together: you will get an opportunity to attend conferences, including as a speaker, and we will help you publish in recognized magazines and online
• We will facilitate your access to challenges that are usually difficult to get
• At any time, you can talk directly to the board of People More—we talk your language because the company’s founders are software developers and designers!

What does the recruitment process look like?

• A friendly remote initial interview
• A remote technical talk
• The decision to work together!

Salary

120 - 170 zł/h

contract

B2B

Location

Kraków / Warsaw / hybrid