Senior Android Developer (f/m/x)

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

Benefits offered by this job

Great Place to Work

Profit sharing

Medical care

Centre of internal trainings

Regular integration events and trips

Job summary

Sii Poland is seeking a Senior Android Developer to join a long-term product development initiative focused on logistics and digital services. You will design, build, and enhance mobile applications used by millions, collaborating with cross-functional teams in an agile environment.

You will lead in performance tuning, architectural improvements, and automated testing, while contributing to technical decisions and documentation for ongoing success.

Qualifications

• 6+ years of commercial Android development experience.
• Strong Kotlin skills and hands-on Android SDK experience.
• Experience building modern UIs with Jetpack Compose and using Coroutines.
• Experience with automated testing, CI/CD practices, and scalable mobile applications.

Responsibilities

• Design, develop, and maintain high-performance Android apps focusing on stability and responsiveness.
• Refactor and optimize existing code and architectures.
• Build and maintain automated CI/CD pipelines for test and release processes.
• Deliver clean, testable code and participate in technical decision making.
• Participate in code reviews and promote engineering best practices.
• Create and maintain technical documentation for development and operations.

Skills

Android development

Kotlin

Jetpack Compose

Coroutines

CI/CD

Testing

English

Polish

Tools

Android SDK

Job description

Join a long-term product development initiative in the logistics and digital services sector, focused on creating mobile solutions that support millions of everyday users. As a Senior Android Developer, you will play a key role in designing, building, and improving high-performance mobile applications, working closely with cross-functional teams in an agile environment. This position offers the opportunity to influence technical decisions, contribute to software architecture, and help deliver reliable, scalable, and user-centric products.

Your tasks

• Designing, developing, and maintaining advanced Android applications with a focus on performance, stability, and responsiveness
• Enhancing existing solutions through refactoring, code optimization, and continuous architectural improvements
• Building and maintaining automated CI/CD pipelines to streamline development, testing, and release processes
• Delivering high-quality, testable, and maintainable code while contributing to technical decision-making
• Participating in code reviews and promoting engineering standards, best practices, and software quality
• Creating and maintaining technical documentation to support development and operational processes
  
  

Requirements

• At least 6 years of commercial experience in Android application development
• Strong proficiency in Kotlin and hands-on experience with the Android SDK
• Practical experience building modern user interfaces with Jetpack Compose
• Solid knowledge of asynchronous programming and concurrency using Coroutines
• Experience with automated testing, CI/CD practices, and maintaining scalable mobile applications
• Fluent communication skills in both Polish and English, enabling effective collaboration in an international environment
  
  

Job no. JOB-NMERU

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care