Senior Android Software Engineer (Kotlin)

JobCubby; Wrocław; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Long-term cooperation

Stable product environment

Architectural influence

Modern Android tech

Hybrid work model

High-impact role

Job summary

JobCubby is seeking a Senior Software Engineer to design and develop Android applications in Kotlin. You will contribute to evolving a modern mobile architecture, working with SDUI and WebView integrations, and collaborating with product and design teams. The role offers autonomy and a chance to influence architectural decisions.

You will participate in CI/CD processes, code reviews, and mentoring, while helping shape a scalable and secure mobile platform for thousands of users.

Qualifications

• 3+ years of professional Android development experience.
• Strong proficiency in Kotlin and modern Android libraries.
• Experience with architectural patterns, UI/UX guidelines, and CI/CD workflows.

Responsibilities

• Design and develop Android applications using Kotlin and modern Android technologies.
• Contribute to the design and evolution of the mobile architecture.
• Collaborate with Product Owners, UX Designers, Backend Engineers, and other stakeholders.
• Implement reusable modules and design systems for scalable apps.
• Participate in code reviews, pair programming and mentoring.

Skills

Kotlin

Android Development

MVVM

Clean Architecture

CI/CD

Tools

Jetpack Compose

Hilt

Room

Coroutines

Flow

Retrofit

WebView

Job description

to apply - email only, no card. You can also save this posting or score it againstyour profile with AI.## About the roleDesign and develop Android applications using Kotlin while contributing to the evolution of mobile architecture and engineering standards. Collaborate with cross-functional teams to implement reusable modules, maintain design systems, and ensure high performance and scalability.## RequirementsRequires at least 3 years of professional Android development experience with strong proficiency in Kotlin and modern Android libraries. Candidates must have a solid understanding of architectural patterns, UI/UX guidelines, and experience with CI/CD workflows.## BenefitsLong-term cooperationStable and growing product environmentInfluence over architecture and technical decisionsModern Android technologiesHigh-impact roleAutonomyHybrid working model## Full descriptionAbout the ProjectWe are looking for a Senior Software Engineer to join a team building and evolving modern mobile solutions used by thousands of users.The mobile platform is being developed towards a modern architecture based on Native Shells, Native Modules, WebView, and Server-Driven UI (SDUI), enabling multiple product teams to work independently while maintaining a seamless user experience, high performance, security, and scalability.This role offers the opportunity to contribute not only to application development, but also to the evolution of mobile architecture, engineering standards, and development processes.Scope of Services* Design and develop Android applications using Kotlin and modern Android technologies* Contribute to the design and evolution of the target mobile architecture* Design and implement Android Native Shells and reusable Native Modules* Support application modularization and scalability initiatives* Integrate native Android components with WebView and Server-Driven UI (SDUI) solutions* Develop and maintain the Android Design System, including reusable UI components, documentation, and development guidelines* Collaborate closely with Product Owners, UX Designers, Backend Engineers, and other stakeholders* Participate actively in technical discussions and architectural decision-making* Implement user interfaces with a strong focus on usability, accessibility, consistency, and user experience* Refactor existing codebases and improve application maintainability* Participate in code reviews and pair programming sessions* Mentor and support less experienced team members* Implement automated testing strategies and quality assurance processes* Define and promote coding standards, best practices, and development guidelines* Create and maintain technical documentation* Ensure ongoing maintenance and support of existing solutions* Drive continuous improvements within the development team* Contribute to CI/CD processes, release management, and application delivery through Google Play* Work in an Agile product development environmentRequired Qualifications* Minimum 3 years of professional experience in Android application development* Strong commercial experience with Kotlin* Hands-on experience with:* Jetpack Compose* Hilt* Room* Kotlin Coroutines* Kotlin Flow* Retrofit or similar networking libraries* Solid understanding of:* MVVM* Clean Architecture* SOLID principles* Object-Oriented Programming and design patterns* Experience designing and building complex mobile applications* Experience with application architecture and codebase refactoring* Understanding of mobile application security and secure data processing practices* Strong knowledge of Android UI/UX guidelines and best practices* Experience implementing accessible and user-friendly interfaces* Experience participating in code reviews and technical discussions* Ability to work independently and take ownership of delivered solutions* Strong collaboration and communication skills* Experience with CI/CD concepts and development workflows* English proficiency at B2 level or higherNice to Have* Experience in a Senior, Lead, Principal, or Tech Lead role* Experience with Native Modules, WebView-based architectures, or Server-Driven UI (SDUI)* Experience building or maintaining Design Systems and UI component libraries* Experience with mobile application modularization* Experience with Firebase Analytics or similar analytics platforms* Experience writing unit tests and automated tests* Experience with E2E testing tools such as Maestro* Familiarity with GDPR requirements in mobile applications* Experience using Git, Jira, and Confluence* Experience collaborating closely with UX teams and working with Figma* Strong understanding of accessibility standards and inclusive mobile design* Experience using AI-powered tools in daily software development* Experience building scalable mobile platforms supporting multiple product teamsWhat We Offer* Long-term cooperation within a stable and growing product environment* Influence over architecture and key technical decisions* Opportunity to work with modern Android technologies and architectural patterns* A high-impact role with real ownership and autonomy* Collaboration with experienced product, UX, and engineering teams* Hybrid working model (up to 5 on-site visits per year)Tech StackKotlin - Jetpack Compose - Hilt - Room - Coroutines - Flow - Retrofit - MVVM - Clean Architecture - Git - CI/CD - Firebase Analytics - Maestro - WebView - SDUI