Freelance Backend Engineer - Kotlin (m/f/d)

Reposted 3 Days Ago
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7 Locations
In-Office or Remote
Senior level
Software
Doku einfach einsprechen.
The Role
Develop and maintain integrations between voize and German senior care/hospital software. Design scalable REST APIs and data models, take end-to-end ownership from architecture to implementation, collaborate with partners, and improve caregiver workflows. Remote across Germany with occasional travel to Berlin; minimum 3+ month freelance engagement.
Summary Generated by Built In
🎤 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!

Skills Required

  • Several years of experience in backend development and API integration
  • Excellent proficiency with Kotlin
  • API design and development with REST
  • Fluent in German (C1)
  • Willingness and authorization to travel to Berlin (expenses covered)
  • Availability to work for a minimum of 3+ months
Am I A Good Fit?
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The Company
HQ: Berlin
70 Employees
Year Founded: 2020

What We Do

The Digital Voice Assistant for Senior Care Documentation

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