Senior Android Engineer: Build High-Performance Apps

Sii Poland; Lublin; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Solid financial situation

Centre of internal trainings

Profit sharing

Medical care

MySii app

Job summary

Sii Poland is seeking a Senior Android Developer to join a long-term mobility and digital services project in Poland. You will design, build, and improve high-performance Android apps, collaborating with cross-functional teams in an agile setting.

You will drive architecture, contribute to scalable solutions, and ensure quality through testing and code reviews while shaping technical direction across the product.

Qualifications

• 6+ years of commercial Android app development experience.
• Strong Kotlin and Android SDK proficiency.
• Experience with Jetpack Compose and asynchronous programming using Coroutines.
• Experience with automated testing and CI/CD practices.

Responsibilities

• Design, develop, and maintain advanced Android applications focusing on performance and stability.
• Refactor and optimize existing solutions; contribute to architectural improvements.
• Build and maintain automated CI/CD pipelines for development, testing, and release.
• Deliver high-quality, testable, maintainable code and influence technical decisions.
• Participate in code reviews and uphold engineering standards and quality.
• Create and maintain technical documentation to support development and operations.

Skills

Kotlin

Android SDK

Jetpack Compose

Coroutines

Automated testing

CI/CD

English & Polish

Tools

CI/CD pipelines

Job description

Sii Poland is seeking a Senior Android Developer to join a long-term mobility and digital services project in Poland. You will design, build, and improve high-performance Android apps, collaborating with cross-functional teams in an agile setting.

You will drive architecture, contribute to scalable solutions, and ensure quality through testing and code reviews while shaping technical direction across the product.