Senior Kotlin Software Engineer

Senior Kotlin Software EngineerRole Overview

We are looking for an experienced software engineer to contribute to the development of cross\-platform applications for e\-bike analytics, maintenance, and factory assembly. In this role, you will design, implement, test, and maintain high\-quality software in close collaboration with other engineers and cross\-functional partners.

You will work at the intersection of desktop applications, embedded device communication, and factory tooling, enabling reliable interaction with e‑bike systems via USB/HID and other interfaces.

The position is based in our office in Cham (ZG) and has a 4\-day in\-office expectation.

Key Responsibilities

• Application Development

+ Design and implement shared business logic across our desktop platforms using Kotlin and KMP.
+ Integrate platform‑specific components where required.
+ Develop clean, maintainable, and testable code following established engineering standards and design principles.
+ Write and maintain unit, integration, and automated tests to ensure software quality and reliability.
+ Participate in code reviews and contribute to the continuous improvement of coding standards and development practices.
+ Analyse and resolve software defects, performance issues, and reliability problems across supported platforms.
+ Contribute to CI/CD pipelines, build automation, release processes, and development tooling.
+ Create and maintain technical documentation for implemented features, interfaces, and operational workflows.
+ Collaborate with product management and quality teams to refine requirements and define clear acceptance criteria.
+ Use and contribute to AI\-enhanced software development processes

• Embedded \& Device Communication

+ Design and implement robust communication with embedded e‑bike systems.
+ Work with USB/HID and other wired interfaces to support diagnostics, maintenance, and factory assembly processes.
+ Collaborate closely with embedded firmware engineers to align protocols and tooling.

• Cross‑Functional Collaboration

+ Work closely with the solution architect, product management, embedded teams, manufacturing, and quality teams.
+ Communicate technical topics clearly and collaborate effectively across disciplines.
+ Contribute to planning, estimation, and technical risk assessment.

Required Qualifications

• Strong experience with Kotlin and Kotlin Multiplatform (KMP) in production systems.


• Strong understanding of Ktor and modern asynchronous/networked application design.


• Experience contributing to complex software systems with a focus on maintainable, testable code.


• Hands‑on experience with device communication, ideally using USB/HID protocols.


• Strong background in software engineering best practices, including testing, code reviews, and CI/CD.


• Ability to work independently, contribute constructively to technical discussions, and support team delivery.


• Excellent communication skills and a strong team‑player mindset.

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