Senior Kotlin Software Engineer

Role 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.