Java, Kotlin & Android - Senior Software Engineer

Project overview

For the development of a solution to determine price information and create PDF documents (price tags/electronic shelf labels) in the retail sector, I am looking for a Senior Software Engineer with profound knowledge in Java, Kotlin & Android.

Responsibilities

• Development of a solution to determine price information
• Generation of PDF documents (price tags/electronic shelf labels)
• Specialization Fullstack (Java backend + Mobile Android)

Requirements

Required Skills:

• Java backend development (Java 17+, Spring Boot 3+)
• Development of mobile applications with Android (Kotlin, Jetpack Compose, Gradle)
• Relational databases
• API design
• Language skills:
• German: at least C1 level
• English: at least B2 level
• Java 17+
• Postgresql
• Spring Boot 3+
• Spring Batch
• JPA/Hibernate
• Apache Kafka
• Kotlin (Android)
• Jetpack Compose
• IntelliJ
• Maven
• Gradle (for Android)
• Git
• Gitlab CI
• Docker
• Kubernetes

Nice to have

• Web frontend development (Angular)
• Design and control of deployment processes (DevOps)
• Experience with common AI development tools (Github Copilot, Claude Code)

Project details

15.11.2026

End: 14.11.2027

Cologne (1 day per week on-site) & remote (4 days per week home office)

• Start: flexible
• Duration: 10-12 months
• Remote: hybrid
• Location: Cologne, Germany, DE
• Languages: German, English