# Freelance Senior Backend Engineer - Kotlin (m/f/d) at voize Freelance Senior Backend Engineer - Kotlin (m/f/d) at voize in Berlin and 12 more. Remote, contract. Posted October 29, 2026. - Company: voize - Location: Berlin and 12 more - Workplace: Remote - Job type: Contract - Posted: 2026-10-29 - Apply: https://jobs.ashbyhq.com/voize/fcc30a85-c126-46e2-8d9b-25f1944aa4e8/application - Source: https://jobmagic.ai/jobs/freelance-senior-backend-engineer-kotlin-mfd-voize-zhbbct ## Description ### 🎀 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**. ### πŸ’‘ 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.** ### πŸš€ 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! πŸš€ We look forward to your application and can’t wait to meet you – no matter who you are or what background you have!