Java Backend Developer (Microservices) (f/m)

Develop and enhance the microservices architecture of the Home Connect IoT platform
Contribute to both new feature development and existing system maintenance (approx. 50% maintenance work)
Design and implement solutions using Java and Kotlin (21/17)
Participate in the full end-to-end development process—from requirements gathering to architecture design, implementation, testing, and deployment
Process and analyse data streams using Apache Flink and Kafka Streams
Work with device certificates, including certificate orchestration for IoT devices
Collaborate with stakeholders and other technical teams to solve complex problems and ensure smooth integration across systems

At least 3 years of professional software development experience, with an open-minded and proactive approach to new challenges
Strong hands-on experience with microservices and related technologies: Java, Kotlin, Spring, Spring Boot
Minimum 1 year of hands-on experience with Apache Kafka
Solid understanding of RESTful APIs, microservices architecture foundations, and authentication methods
Experience with both relational (PostgreSQL) and NoSQL databases (MongoDB)
Knowledge of Jenkins & CI/CD best practices
Strong adherence to clean code principles and design patterns
Excellent verbal and written communication skills
Strong collaboration skills, including working effectively with stakeholders, product owners, and other engineering teams
Positive attitude and an ability to approach challenges constructively
Proactive mindset with a willingness to take initiative, propose improvements, and support continuous enhancement of the platform
Very good presentation skills, including the ability to clearly communicate technical topics to different audiences

Knowledge of digital certificates / PKI
Experience with AWS or other Cloud Providers (Terraform is a plus)
Basic understanding of stream processing tools (Apache Flink and/or Kafka Streams)
Experience with CloudFoundry
Basic understanding of JWT

Exciting work on innovative solutions using cutting-edge technologies
Opportunity to shape the concept and architecture of new Home Connect use cases
A key role in influencing the entire development process—from architecture design to final implementation
Stable employment within an international organization
A wide range of non-pay benefits including medical care, sports and cultural programs, and a lunch pass card

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