---
title: "Freelance Senior Backend Engineer - Kotlin (m/f/d)"
company: "voize"
company_url: "https://www.remjobs.works/companies/voize"
url: "https://www.remjobs.works/job/voize-freelance-senior-backend-engineer-kotlin-m-f-d-54db4be5-5fe2-42d1-af61-c40a8abee596"
apply_url: "https://jobs.ashbyhq.com/voize/fcc30a85-c126-46e2-8d9b-25f1944aa4e8"
workplace: remote
location: "Berlin"
remote_scope: "Berlin"
employment_type: contract
seniority: senior
role: software-engineering
region: europe
skills: ["kotlin"]
date_posted: 2026-08-18T22:17:02.229Z
first_seen_by_remjobs: 2026-09-04T18:44:58.735Z
---

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

**voize** · Berlin

Apply: https://jobs.ashbyhq.com/voize/fcc30a85-c126-46e2-8d9b-25f1944aa4e8

## About voize

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. 

We’re changing that by building the AI companion that frees nurses from admin, giving them back up to 30% of time. We don’t replace humans - we support and amplify their impact. Today, 1,500+ care facilities trust voize, and over 100,000 nurses rely on our AI companion** to ease their daily workload.

Our mission is backed with a $50M Series A funding led by Balderton Capital, with support from HV Capital, Y Combinator and other leading VCs.

## 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!

---

Source: voize's own career page, read by RemJobs. Canonical HTML version: https://www.remjobs.works/job/voize-freelance-senior-backend-engineer-kotlin-m-f-d-54db4be5-5fe2-42d1-af61-c40a8abee596