Mobile Software Engineer (SDK) (f/m/d) at justtrack

Hamburg, Germany

on-site · full_time · Visa sponsorship

Responsibilities:
- Build and maintain the justtrack SDK across mobile and web platforms with a primary focus on iOS.
- Write clean, maintainable, and well-tested code; leverage AI assistance to improve efficiency.
- Design and maintain CI/CD pipelines to ship SDK releases reliably.
- Understand system interactions (backend, integrations) and design robust, efficient SDK APIs.
- Produce clear SDK documentation, samples, and open-source artifacts for external developers.
- Provide client support for integrations, triage issues, and implement improvements to the developer experience.

Requirements:
- 3+ years of software engineering experience, preferably in mobile or SDK development.
- Strong knowledge of one or more: Kotlin, Swift, JavaScript/TypeScript, C#, or Go.
- Experience building and optimizing CI/CD and automation for releases.
- Comfortable with terminal, networking basics, HTTP clients, DBMS and common IDEs.
- Pragmatic problem-solver with a business-minded approach and a focus on developer UX.
- Willingness to learn new technologies and to work on cross-platform integration challenges.