Freelance Senior Backend Engineer - Kotlin (m/f/d)
Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Aug 18, 2026. voize scores B on the Alion truth index.
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 Backend Engineer for our German Market squad, you’ll ensure that data flows smoothly between our products and our partners' software solutions. You'll build and maintain the integrations that connect the voize with senior care and hospital software platforms. We are open for you to be based remotely across Germany, France or the UK.
Your Daily Business - No two days are alike
Shape the future of our integrations - Develop interfaces that seamlessly connect voize with systems in the care and medical sector
Build future-proof solutions - Develop a scalable API, set industry standards, and work closely with partners and clients
Take end-to-end ownership - From the idea and implementation to the ongoing development of our integrations
Architecture with foresight - Design thoughtful data models and sustainable solutions for complex systems
Work with impact - Your work saves caregivers time, improves documentation, and supports people who do amazing work every day.
Your Skillset - What you bring to the table
Several years of experience in backend development and API integration
Excellent proficiency with Kotlin
API design and development with REST
Fluent in German (C1) to communicate effectively with partners
Willingness and work authorisation to travel to Berlin (we cover your expenses!)
Can work with us for minimum 3+ months
Ready to talk? Apply now!
We look forward to your application and can’t wait to meet you - no matter who you are or what background you have!