Senior Backend Engineer - Kotlin (m/f/d) - English speaking

voize; Köln; Hybrid; EUR 90.000 - 120.000; Vollzeit

Benefits dieser Stelle

Stock options

30 days vacation

Transport ticket

Urban Sports Club

Company off-sites

Learning platforms

Flexible hours

Hybrid work

Zusammenfassung

voize is hiring a Backend Engineer to join the US/UK squad and connect our AI companion with senior care and hospital software.

You will implement integrations, design scalable APIs, and own end-to-end delivery while collaborating with partners to impact frontline care in meaningful ways.

Qualifikationen

• Several years of backend development and API integration experience.
• Proficiency in Kotlin and Coroutines is essential.
• Experience designing and building REST or GraphQL APIs.
• Fluent English communication (C1) with customers.
• Willingness to travel to UK or US occasionally.

Aufgaben

• Shape the future of integrations between voize and care/hospital systems.
• Develop a scalable API and define interfaces with partners and clients.
• Own end-to-end implementation and ongoing development of integrations.
• Design thoughtful data models and sustainable system architectures.
• Deliver work that saves caregivers time and improves documentation.

Kenntnisse

Backend development

API integration

Kotlin

Coroutines

REST/GraphQL

English (C1)

Travel flexibility

Jobbeschreibung

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. 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, 2,000+ care facilities trust voize, and over 200,000 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. As a fast-growing team, we combine first‑class technology with meaningful social impact. And now, we’re looking for you to join us on this mission!

Your Mission

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 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

Your Skillset – What you bring to the table

• 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 fluency in English (C1) to communicate effectively with customers
• Open to travel to UK or US occasionally

Growing together – what you can expect at voize

• We are a fast‑growing startup, that means you will tackle challenges, grow quickly, and make a real impact, giving healthcare professionals more time for real patient care.
• We foster an open, collaborative culture with regular team events, whether you work from our Berlin office or remotely from Germany.
• Become a co‑creator of our success with stock options.
• Generous perks: 30 vacation days plus your birthday off, Germany Transport Ticket, Urban Sports Club, regular company off‑sites, and access to learning platforms such as Blinkist and Audible.
• You decide when you work best, that means flexible working hours and a good hybrid set‑up.

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!