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# Senior Backend Engineer - Kotlin - English speaking

- **Company:** voize GmbH
- **Location:** Köln, Germany (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Backend, Kotlin, Graphql, Asynchronous Programming, Api Design
- **Published:** July 12, 2026
- **Apply:** https://de.indeed.com/viewjob?jk=9c3477d874b931a5

## About the Role

* Several years of experience in backend development and API integration
 * Proficiency with Kotlin and Coroutines is essential
 * API design and development with REST or GraphQL
 * Business fluent in English (C1) to communicate effectively with customers
 * Open to travel to UK or US occasionally

## Description

* 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.


## Related Videos

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- [Back(end) to the Future: Embracing the continuous Evolution of Infrastructure and Code](https://www.wearedevelopers.com/videos/440-back-end-to-the-future-embracing-the-continuous-evolution-of-infrastructure-and-code)
- [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse)
- [Putting the Graph In GraphQL With The Neo4j GraphQL Library](https://www.wearedevelopers.com/videos/257-putting-the-graph-in-graphql-with-the-neo4j-graphql-library)
- [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape)
- [Moving from Java to Kotlin](https://www.wearedevelopers.com/videos/384-moving-from-java-to-kotlin)

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