Android Developer

KIS Solutions; Poland; Remote; PLN 75,000 - 95,000; Full time

Job summary

KIS Solutions is seeking a Senior Android Engineer with strong technical leadership skills to drive architectural decisions and deliver high-quality mobile experiences. This role requires hands-on development and mentoring of engineers while collaborating across teams on complex Android systems.

The ideal candidate has over 5 years of experience in Android engineering with expertise in Kotlin and Jetpack Compose. A competitive package with growth opportunities is provided.

Qualifications

• 5+ years of professional Android engineering experience.
• Expertise with Kotlin, Jetpack Compose, and modern architectural patterns.
• Strong understanding of SOLID principles and writing testable code.

Responsibilities

• Lead the technical design and architecture of Android applications.
• Act as a technical mentor supporting engineers across teams.
• Develop high-quality features using Kotlin and Jetpack Compose.

Skills

Android engineering expertise

Strong technical leadership

Kotlin

Jetpack Compose

Modern architectural patterns

Testable code practices

Tools

GitHub

CI/CD pipelines

Android Studio Profiler

Job description

We are looking for a Senior Android Engineer with strong technical leadership skills to drive architecture decisions, guide engineering practices, and deliver high-quality mobile experiences at scale.

In this role, you will not only contribute hands‑on to development but also act as a technical leader, influencing multiple teams, mentoring engineers, and helping shape the direction of our Android ecosystem. You will build modern native applications using Kotlin and Jetpack Compose, while ensuring scalability, security, performance, and engineering excellence.

This position requires close collaboration across teams and ownership of complex, large‑scale Android systems.

Job Activities

• Lead the technical design and architecture of Android applications, ensuring scalability, maintainability, and performance.
• Act as a technical reference and mentor, supporting and guiding other engineers across teams.
• Develop high-quality features using Kotlin, Jetpack Compose, and modern design principles.
• Make architectural decisions that emphasize scalability, testability, and performance.
• Work with REST and GraphQL APIs and collaborate closely with backend teams.
• Write clean, modular, testable code using SOLID principles and dependency injection.
• Maintain and expand automated test coverage (unit, UI).
• Design with security in mind: safe data handling, encryption, secure storage, and robust networking.
• Ensure strong observability—add metrics, logging, tracing, analytics, and performance instrumentation.
• Optimize performance using Android Studio Profiler and related tooling.
• Contribute to GitHub workflows, CI/CD automation, and trunk-based development.
• Use AI tools to enhance testing, documentation, refactoring, and developer efficiency.
• Collaborate with multiple mobile and backend teams in a large, complex engineering environment.
• Mentor peers and support engineering excellence across teams.

Requirements

• 5+ years of professional Android engineering experience.
• Expertise with Kotlin, Jetpack Compose, and modern architectural patterns (MVVM, MVI).
• Strong understanding of SOLID principles, DI, and writing testable, maintainable code.
• Experience with unit testing, test frameworks, and maintaining/expanding code coverage.
• Experience integrating with REST and GraphQL services.
• Background working on large, complex Android applications with multiple native engineering teams.
• Experience working with modularized Android architectures in large scale applications.
• Experience designing robust data layers, including caching strategies, offline support and synchronization.
• Experience implementing progressive rollouts, remote configuration and feature flags.
• Experience designing for security, observability, and performance.
• Proficiency with GitHub, CI/CD pipelines, and trunk-based workflows.
• Experience using AI-augmented engineering tools to improve development velocity and quality.
• Experience with event-driven or real-time architectures.
• Backend or full-stack exposure, or ability to influence API contracts.
• Experience with design systems, shared component libraries, analytics, and experimentation.