> Markdown version of [/jobs/ext/1659131-senior-backend-engineer-kotlin-english-speaking](https://www.wearedevelopers.com/jobs/ext/1659131-senior-backend-engineer-kotlin-english-speaking). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Engineer - Kotlin - English speaking - **Company:** voize GmbH - **Location:** Berlin, Germany - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Computing Platforms, Software Systems, Data Streaming, Backend, Kotlin, Graphql, Asynchronous Programming, Api Design - **Published:** July 18, 2026 - **Apply:** https://www.adzuna.de/details/5798304684 ## 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 As a Backend Engineer part of our US/UK 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. 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. ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [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) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [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) ## Related Articles - [Finding Jobs in Germany](https://www.wearedevelopers.com/magazine/375-finding-jobs-in-germany) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Finding IT & Technology English-speaking Jobs in Germany ](https://www.wearedevelopers.com/magazine/446-finding-it-technology-english-speaking-jobs-in-germany) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [How to Find Tech Jobs in Berlin](https://www.wearedevelopers.com/magazine/291-how-to-find-tech-jobs-in-berlin)