Senior / Lead Android Developer

Newdigitalstreet; Warszawa; On-site; PLN 120,000 - 160,000; Full time

Benefits offered by this job

Private health care

Fitness passes

Attractive remuneration

Job summary

A tech company in Poland is seeking a Senior Android Developer / Android Technical Lead to design and develop innovative mobile applications for millions of users. The role emphasizes leadership in architecture, quality assurance, and mentoring. Ideal candidates will possess over 7 years of Android development experience and proficiency in Kotlin. Competitive remuneration and a benefits package, including health care and fitness passes, are offered.

Qualifications

• 7+ years of professional experience in Android development.
• Deep knowledge of Android SDK and core components.
• Practical use of dependency injection frameworks.

Responsibilities

• Design, develop, and maintain high-quality Android applications.
• Lead architectural decisions and support team processes.
• Conduct code reviews and provide technical mentorship.

Skills

Android development (Kotlin, Java)

MVVM architecture

RxJava3

Git

Analytical thinking

Tools

Git

Gradle

Postman

Mockito

Android Profiler

Job description

We’re looking for a Senior Android Developer / Android Technical Lead to join our team and take a key role in building and scaling mobile applications used daily by millions of users.

Responsibilities:

• Design, develop, and maintain high-quality Android applications with a strong focus on performance and user experience
• Lead architectural decisions and support the team in adopting engineering best practices
• Integrate mobile applications with backend services in a secure and efficient manner
• Write and oversee unit and integration tests, ensuring high test coverage and stability
• Conduct code reviews, provide technical mentorship, and help shape development standards
• Take ownership of technical documentation and ensure alignment with project goals

Requirements:

• 7+ years of professional experience in Android development (Kotlin, Java)
• Deep knowledge of Android SDK and its core components
• Hands‑on experience with: Git, Gradle, Postman, SoapUI (or similar tools)
• Proficiency in using key libraries and tools such as: RxJava3, OkHttp, Lottie, AndroidX, Firebase, Android Architecture Components
• Strong understanding and practical experience with MVVM architecture and software design patterns
• Experience in reactive programming
• Practical use of dependency injection frameworks (Hilt, Dagger2, Koin)
• Familiarity with testing frameworks (Mockito, MockK, PowerMock, etc.)
• Analytical thinking, problem‑solving mindset, and effective communication skills

Nice to have:

• Previous experience in a Tech Lead or similar leadership role
• Experience with multi‑module Android projects
• Strong debugging and profiling skills using tools like Android Profiler, Layout Inspector, apksigner, apkanalyzer
• Familiarity with native Android development using NDK, C/C++
• Understanding of CI/CD processes and tools like Jenkins, GitLab CI, or Bitrise
• Integration experience with Huawei Mobile Services (HMS) and Firebase
• Deep understanding of SOLID principles and Clean Architecture
• Experience using Gerrit, GitLab, and other code review/version control tools
• Comfortable working with JIRA, Confluence, and related tools

We offer:

• Contribution to the creation of an innovative product used by customers
• Ability to work in a cutting‑edge field with the latest technology
• A stable job full of new challenges, and ongoing professional development
• Attractive remuneration adequate to your qualifications and professional experience
• Benefits package, including private health care, fitness passes

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