InPost

Senior Android Engineer - Fintech Platform

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SeniorHybryda·WarszawaFull-time

#459686·Dodano 20 dni temu·12

Źródło: InPost

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Tech Stack / Keywords

Kotlin Jetpack ComposeKotlin CoroutinesFlowRoomEncryptedSharedPreferencesAndroid KeystoreJUnitEspressoAndroid Profiler

Firma i stanowisko

InPost Pay is building its own fintech platform from the ground up. It is a large-scale, international initiative focused on architecture, core fintech components, and high-scale solutions. The engineering organization in Poland is lean and AI-native, seeking experienced engineers comfortable with agentic and AI-driven development. Hybrid working model: preferably 1 day per week in Warsaw or Cracow office.

Wymagania

Minimum 5 years experience in native Android engineering with production apps on Google Play.
At least 4 years working with Kotlin and Jetpack Compose and/or Android View system.
At least 3 years experience with Android testing using JUnit, Espresso, and Compose Testing.
Strong command of Kotlin features: Coroutines, Flow, sealed classes, and extension functions.
Production-level experience with Jetpack Compose and View system.
Knowledge of Clean Architecture, MVVM, and/or MVI with strong understanding of module and layer boundaries.
Experience with Hilt or Dagger 2, including component lifecycle and scope management.
Experience with Room, EncryptedSharedPreferences, and Android Keystore.
Knowledge of Retrofit and OkHttp, including certificate pinning and structured error handling.
Experience using Android Profiler and Perfetto for performance profiling.
Experience with Gradle-based CI/CD and automated signing/delivery.
Ability to read and work with Java in legacy systems and third-party SDKs.
Experience integrating feature flags and structured events on the mobile layer.
English proficiency at minimum B2 level.
University degree in IT, Computer Science, or related field.

Nice to have:

At least 2 years experience in FinTech or regulated mobile app development.
Experience with Google Pay or Android payment APIs.
Experience with modular Android apps at multi-module scale.
Knowledge of Instant Apps.
Experience implementing WCAG or Android accessibility standards.
Familiarity with KSP, KAPT, custom Gradle plugins, or Gradle convention plugins.

Obowiązki

Own the architecture of a production FinTech Android application, including layered architectural patterns, module boundaries, and Gradle build structure.
Develop and maintain native Android solutions using Kotlin, Jetpack Compose, and the View system.
Implement reliable concurrency and state management using Kotlin Coroutines and Flow.
Work with local persistence and security solutions such as Room, EncryptedSharedPreferences, and Android Keystore.
Contribute throughout development lifecycle: PRD authorship, specification writing, testing, feature-flagged releases, and structured event emission.
Build and maintain automated tests using JUnit, Espresso, and Compose Testing.
Profile and improve application performance using Android Profiler and Perfetto focusing on CPU, memory, and UI.
Monitor crashes and ANRs via Crashlytics; maintain zero-regression approach.
Support CI/CD automation using Gradle and GitHub Actions or equivalents.
Own integrations between native and web experiences including WebView, Custom Tabs, App Links, and deep linking.
Co-own team backlog with Engineering and Product Managers, integrating Android constraints and native proposals into requirements.
Collaborate with backend engineers on API contracts, authentication flows, and event schemas.
Participate in production incident support and post-mortem activities when required.

Benefity

Opportunity to work in a diverse, international, and cross-functional environment with experts.
Learning and experience expansion under senior leadership in e-commerce and logistics industries.
Growing company with multiple opportunities in Europe.
Range of benefits and investment in training opportunities.
InPost community involvement impacting sustainability, convenient deliveries, and circular economy.
Excellent working environment and flexible hours.
B2B type of contract offered.

Elastyczne godziny

InPost

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