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

voize; Berlin; On-site; EUR 60,000 - 90,000; Full time

Job summary

voize is seeking a Freelance Senior Android Engineer to take ownership of our Android app, using Kotlin and Jetpack Compose to deliver features for healthcare professionals.

You will collaborate with product and engineering, shaping requirements from concept through testing to user feedback, with travel to Berlin and a minimum three-month commitment.

Qualifications

• Multiple years of Android development with Kotlin and Jetpack Compose.
• Strong knowledge of Git, CI/CD, and testing.
• User-friendly UI design sense.
• Fluent English; German a plus.
• Willingness to travel to Berlin; 3+ months minimum.

Responsibilities

• Own development and technical implementation of Android apps.
• Build features from idea to launch.
• Collaborate with product and engineering teams.
• Participate in the full development cycle from concept to feedback.

Skills

Android development

Kotlin

Jetpack Compose

Git

CI/CD

Testing

UI/UX

Flow lifecycle

English fluency

Travel willingness

Tools

Git

CI/CD

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

We look forward to your application and can’t wait to meet you – no matter who you are or what background you have!