android developer payment terminals

HireHi; Polska; On-site; PLN 90,000 - 140,000; Full time

Benefits offered by this job

Access to GIGLIKE benefits platform

Job summary

Pekao CoNext ищет Android-разработчика для создания и поддержки приложений под платежные терминалы. Требуется опыт работы с Kotlin, MVVM, Jetpack Compose и интеграциями через REST/SDK. В обязанности входит проектирование архитектуры, обеспечение безопасности кода и участие в CI/CD процессе.

Команда работает над критически важными банковскими решениями в Польше, ценит дотошность, самостоятельность и умение работать в англоязычной документации.

Qualifications

• Опыт разработки Android-приложений на Kotlin с использованием Android SDK и Android Studio.
• Знание MVVM или MVI и понятие архитектурных паттернов.
• Умение работать с Jetpack Compose для UI.
• Опыт работы с REST/JSON/XML и тестированием.
• Знание принципов безопасного кодирования и CI/CD.

Responsibilities

• Разработка и поддержка Android-приложений для платежных терминалов.
• Проектирование архитектуры приложений, модульности и контрактов между модулями.
• Реализация UI на Jetpack Compose и обеспечения офлайн-режима.
• Интеграция с платежными терминалами, SDK и периферией (NFC, принтеры).
• Участие в обзоре кода, поддержка CI/CD и улучшение процессов.

Skills

Kotlin

Android

MVVM/MVI

CI/CD

English docs

Education

Высшее образование в информатике

Tools

Android Studio

Jetpack Compose

Dagger/Koin

RxJava/Retrofit

Git

Job description

Описание

Pekao CoNext supports key technology initiatives for the Pekao Group and delivers long-term projects that influence the development of banking in Poland. The company works with experienced B2B contractors and develops solutions for one of Poland’s largest banks.

Задачи

• Build and develop Android applications for payment terminals
• Design application architecture, including modularization, layer separation, and stable contracts between modules
• Design and implement user interfaces in Jetpack Compose and complete business processes with error handling, operation retries, and offline mode
• Integrate applications with payment terminals, their SDKs, and peripherals such as NFC, card readers, and printers
• Develop kiosk/COSU solutions that support secure device operation
• Integrate with terminal management systems, including remote parameterization, updates, and device monitoring
• Ensure application quality and security through testing, code analysis, and mobile security best practices
• Participate in code reviews, develop team standards, and improve CI/CD processes
• Ensure the performance, reliability, and high quality of delivered solutions
• Document key technical decisions, interfaces, and system flows
• Integrate terminals with VAS applications and external devices using TCP/IP, USB, Bluetooth, and Android Intents

Требования

• Experience developing Android applications with Kotlin, Android SDK, Android Studio, and AndroidX
• Experience with MVVM and MVI architectures and designing scalable mobile application structures
• Experience using Jetpack Compose to build modern user interfaces
• Experience with Git, Gradle configuration, and dependency management tools such as Dagger or Koin
• Daily experience with RxJava, Retrofit, OkHttp, and Android Data Binding
• Experience creating and maintaining unit tests
• Knowledge of integrating systems based on REST, JSON, XML, and binary protocols
• Knowledge of Clean Code principles and ability to apply them to deliver high-quality solutions
• Understanding of secure coding and application security best practices
• Ability to work independently with technical documentation in English
• Independence, responsibility, and good work organization
• Ability to analyze problems, find optimal solutions, and collaborate with a team
• Experience with Jira and Confluence
• Nice to have:
  • Higher education in computer science, mathematics, or a related field
  • code review experience
  • experience with Gerrit or similar tools
  • code refactoring experience
  • knowledge of Android payment terminal environments and device manufacturer SDKs
  • experience with payment processes such as settlement, reversal, batch processing, and receipt printing
  • practical knowledge of kiosk mode/COSU and Device Owner API
  • experience integrating with TMS and remotely managing terminal fleets
  • knowledge of ISO 8583, ISO 20022, or nexo standards
  • experience profiling application performance with Android Studio Profiler
  • experience in financial or other regulated environments
  • knowledge of PCI and payment application security
  • experience with Android Keystore
  • R8/ProGuard, and anti-tampering solutions

Условия

• B2B contract
• Access to the GIGLIKE benefits platform