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

Job Overview

Location

Berlin

Job Type

Contract

Category

Backend Engineer

Date Posted

July 16, 2026

Full Job Description

đź“‹ Description

  • • 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.
  • • 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.

🎯 Requirements

  • • 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.

🏖️ Benefits

  • • We cover your expenses for travel to Berlin.
  • • We are open for you to be based remotely across Germany.

Skills & Technologies

Kotlin
REST
Backend
Remote

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About Voize Inc.

Voize is a technology company focused on revolutionizing customer communication through AI-powered solutions. Their platform enables businesses to automate and enhance customer interactions across various channels, including voice, chat, and email. By leveraging advanced natural language processing and machine learning, Voize aims to improve customer service efficiency, reduce operational costs, and provide personalized experiences. The company operates within the rapidly growing conversational AI and customer experience management sectors, offering tools that help businesses scale their support operations and gain deeper insights into customer needs and sentiment. Their solutions are designed for a wide range of industries seeking to optimize their customer engagement strategies.

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