Senior Mobile Software Engineer (Android)

Main responsibilities

As a key Mobile Software Engineer, you will drive the development of crucial features and processes in the Post-Purchase Domain. Your focus will be on solving complex, multi-domain challenges to deliver fast and scalable solutions. You will work closely with product owners, designers, and other engineers to translate user needs into intuitive mobile experiences. You will join a thriving mobile community (100+ developers), actively contributing to code reviews and knowledge sharing. This role is ideal for someone with solid experience in mobile development, a strong understanding of software engineering principles, and a desire to grow your expertise in a fast-paced e-commerce environment.

Important things for you

• Flexible working hours in the hybrid model (4/1) – working hours start between 7:00 a.m. and 10:00 a.m., plus 30 days of occasional remote work.
• Salary range: PLN 18 850 – 25 900 (contract of employment, tax-deductible cost).
• Annual bonus based on annual performance and company results.
• Team based in Warsaw.

What You'll Do

• Design, develop, test, and deploy features for the Android application, ensuring high quality, performance, and responsiveness.
• Collaborate with product, design, and other engineering teams to define and implement innovative solutions.
• Participate in code reviews and technical discussions while maintaining high code quality standards.
• Identify and resolve performance and scalability issues.
• Continuously improve development processes, tools, and infrastructure.
• Share knowledge and mentor junior engineers.
• Stay up-to-date with the latest mobile technologies and industry trends.

Requirements

• 5+ years of professional experience in native Android (Kotlin) mobile application development.
• Understanding of mobile application architecture patterns (e.g., MVVM, MVI, Clean Architecture).
• Good understanding of Jetpack Compose and Coroutines.
• Familiarity with RESTful APIs, asynchronous programming, and efficient data handling.
• Proficiency in writing unit and integration tests.
• Familiarity with version control systems (e.g., Git).
• Solid understanding of software engineering principles, data structures, and algorithms.
• Experience with CI/CD pipelines.
• Good communication skills in English and Polish.
• Proactive problem-solving approach and passion for excellent user experiences.

Benefits

• Modern office space and high-quality work equipment.
• Choice of MacBook Pro or Dell with Windows and necessary accessories.
• Cafeteria benefits plan (medical, sports, lunch packages, insurance, vouchers).
• English classes related to your role.
• Training budget, hackathons, and internal learning platform.
• Additional day off for volunteering.
• Social events and internal initiatives.

You will work within an ecosystem based on tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. The environment includes over 1000 microservices, an open-source data bus (Hermes), a Service Mesh, large-scale data processing, and production-used machine learning, supported by modern AI tools to automate repetitive tasks.