Senior Freelance Android Engineer - Kotlin (m/f/d)

voize GmbH; Germany (OH); On-site; USD 83,000 - 124,000; Full time

Job summary

voize GmbH seeks a Freelance Senior Android Engineer to own the Android app development from idea through launch. Experience in Kotlin and Jetpack Compose is essential, and CI/CD knowledge is expected. English fluency is required; German is a plus.

Willingness to travel to Berlin is a plus, with travel expenses covered. The role requires several years in Android development, a user-focused approach, and the ability to work with product and engineering teams in a fast-paced environment.

Qualifications

• Several years of experience in Android development with Kotlin and Jetpack Compose.
• Strong knowledge of Git, CI/CD processes, and testing.
• Keen eye for intuitive and user-friendly interfaces.
• Fluent English (C1); German is a plus but not required.

Responsibilities

• Take full ownership of the development and technical implementation of our Android apps (Kotlin & Jetpack Compose).
• Build features that genuinely make users’ lives easier, taking them from idea to launch.
• Work closely with the product and engineering team to turn requirements into creative and efficient solutions.
• Be involved in the entire development cycle: from concept and testing to user feedback.

Skills

Android development

Kotlin

Jetpack Compose

Git

CI/CD

Testing

UI/UX

English (C1)

Job description

Why voize? Because we’re more than just a job!

At voize, we believe the greatest gift to frontline workers is time - time to care, connect, and be present. Today, that time is lost to admin work that pulls nurses away from what matters most: people.

Your Mission

As a Freelance Senior Android Engineer, you'll take ownership of building and evolving our Android application, creating features that have a real impact on the daily lives of healthcare professionals. We are open to candidates based in France, Germany, or England, with a willingness to travel to our Berlin office from time to time (travel expenses covered). The initial contract is for a minimum of three months.

Your Daily Business – No two days are alike

• Take full ownership of the development and technical implementation of our Android apps (Kotlin & Jetpack Compose)

• Build features that genuinely make users’ lives easier, taking them from idea to launch

• Work closely with the product and engineering team to turn requirements into creative and efficient solutions

• Be involved in the entire development cycle: from concept and testing to user feedback

Your Skillset – What you bring to the table

• Several years of experience in Android development with Kotlin and Compose

• Good knowledge of Git, CI/CD processes, and testing

• A keen eye for intuitive and user-friendly interfaces

• Deep understanding of Flow lifecycle and Operators

• You speak English fluently C1 - German is a plus but not required.

• Willingness to travel to Berlin (we cover your expenses!)

• Can work with us for minimum 3+ months