Kotlin/Java Developer

Mudita; Warszawa; Remote; PLN 180,000 - 240,000; Full time

Job summary

A renowned electronics company in Poland is seeking an experienced Android Developer to lead the development of e-ink applications. You will work on the Mudita App Store, focusing on building secure and efficient mobile applications using Kotlin. The ideal candidate has over 5 years of experience in Android development, a solid understanding of architectural patterns, and is passionate about mobile application security. This position offers a flexible remote/hybrid working model and various employee benefits.

Benefits

Co‑financing for multisport card

Private health care

English classes

2 paid days off for volunteering

Qualifications

• Minimum of 5 years of experience in mobile application development.
• Strong knowledge of Android SDK and Jetpack libraries.
• Practical experience with MVVM and MVI patterns.

Responsibilities

• Design and maintain mobile applications for Android.
• Create unit and integration tests for mobile applications.
• Collaborate with project, backend, and QA teams.

Skills

Developing mobile applications with Kotlin

Android SDK

Architecture patterns (MVVM, MVI)

Creating unit tests

Integrating with external APIs (REST, GraphQL)

Mobile application security best practices

Tools

Android Studio

JUnit

Espresso

Android Profiler

Job description

Working model: remote / hybrid

The project scope includes developing a system for publishing and distributing e-ink applications to mobile devices — the Mudita App Store — along with a dedicated developer portal (a counterpart to Google Play or the Apple App Store, but designed specifically for e-ink devices).

The final outcome will be a complete distribution platform featuring built‑in security, verification, and app distribution mechanisms, as well as a mobile application for end users and a developer portal. Sounds interesting?

Key Responsibilities

• Designing, developing, and maintaining mobile applications for the Android platform using Kotlin and Java
• Utilizing Android Jetpack libraries (including Compose) and Android Studio in daily development work
• Designing and implementing application architecture based on MVVM or MVI patterns, ensuring code consistency and scalability
• Creating and maintaining unit and integration tests for mobile applications
• Ensuring high code quality and security following best practices in mobile software development
• Integrating applications with external APIs (REST, GraphQL, WebSockets)
• Designing and implementing user authentication solutions using services such as OpenID, Auth0, Google Sign In, or similar
• Actively participating in architecture design, technology selection, and defining coding standards
• Collaborating with project, backend, and QA teams to deliver stable, efficient, and secure mobile applications

Qualifications

• Minimum of 5 years of experience in developing mobile applications with Kotlin as an Android Developer or in a similar role
• Strong knowledge of Android SDK, Jetpack libraries (including Compose), and development tools (Android Studio
• Practical experience with architectural patterns such as MVVM and MVI, with a clear understanding of their practical application
• Experience in designing unit tests and working with frameworks such as JUnit, Espresso, or MockK; ability to write clean, effective tests that ensure high code quality
• Experience in performance analysis and debugging using Android Profiler and related tools
• Ability to define and implement best practices in software development
• Strong knowledge of mobile application security best practices
• Experience in integrating mobile applications with external APIs (REST, GraphQL, WebSockets)
• Experience in designing mobile applications that implement user authentication using services such as OpenID, Google, or Auth0

Cool working environment

• Freedom and transparency
• Co‑financing for a multisport card, private health care and English classes
• 2 paid days off for volunteering

We are one of a very few companies in Poland dedicated to designing and manufacturing high quality consumer electronics, aimed at the international market, especially USA and EU⌚📱Our goal is to create unique products featuring top notch minimalist design, in order to help us to live our life in harmony with modern technology. We strive to be independent thinkers, who are not afraid of introducing products which go against typical hot trends, highly promoted by the mainstream big tech companies. To achieve our objective, we rely heavily on custom‑designed solutions.

Please send your CV or LinkedIn profile to:

(Please include the position name in the e-mail title)

Information regarding the processing of personal data of candidates

Please include the following clause in your CV:

“I agree to the processing of my personal data contained in the application documents provided by me in order to carry out the recruitment process by Mudita sp. z o.o. in Warsaw, Jana Czeczota Street No 6. I give my data voluntarily, I know the right to access and correct them, and that consent may be revoked at any time.”