Jobs / Summary

Full Stack Engineer (Flutter & Kotlin)

Confidential company · Berlin · Posted Jun 19, 2026

Public summary

A HealthTech startup in Berlin is seeking a Full Stack Engineer focused on mobile development using Flutter and backend services with Kotlin. This role involves building cross-platform mobile applications, developing backend APIs, and collaborating with product and design teams to deliver scalable healthcare solutions across Europe.

Location and work setup

Location
Berlin
Remote status
Hybrid
German requirement signal
No German Required Detected
Detected job language
English

Responsibilities

- Build and maintain cross-platform mobile apps using Flutter - Develop backend services and APIs with Kotlin - Collaborate with product, design, and QA teams to deliver high-quality features - Contribute to architectural decisions and technical direction - Improve performance, scalability, and reliability of the platform

Qualifications

- Strong experience with Flutter (production-level apps) - Solid backend development experience using Kotlin - Experience building and consuming RESTful APIs - Understanding of scalable architecture and clean coding practices - Experience working in startup or scale-up environments is a plus

Skills

Flutter Kotlin Mobile Development Backend Development RESTful APIs Scalable Architecture