Voize

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

Remote, United States remote Entry Salary not listed
remote Technology & IT Curated
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About the role

🎤 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!
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Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Role
Technology & IT API integration Writing Freelance Backend Engineer remote

Likely questions

  1. Tell us about work you have done that is close to the Freelance Backend Engineer - Kotlin (m/f/d) role.
  2. How would you approach your first 30 days at Voize?
  3. Which of API integration, Writing and Freelance have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you stay organised and communicate clearly when working remotely?

Prepare before the call

  • A recent example that proves your experience with API integration, Writing and Freelance.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Freelance Backend Engineer - Kotlin (m/f/d) role because I can bring practical experience in API integration, Writing and Freelance, learn the team quickly, and contribute to the outcomes Voize needs from this hire.

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