Location: Zürich

Work mode: Hybrid

Job Overview

We are seeking a skilled Java Developer to design, build, and maintain robust, scalable, and secure web services. In this role, you will be responsible for developing high-performance backend solutions that integrate seamlessly with front-end applications and third-party systems. You will collaborate with cross-functional teams to ensure the delivery of reliable, efficient, and secure software solutions that meet business needs and industry standards. This position requires strong problem-solving skills, a deep understanding of Java technologies, and a commitment to delivering high-quality code in an agile environment.

Key Responsibilities

• Design, develop, and maintain robust, scalable, and secure REST-based web services in Java
• Define and document service interfaces using OpenAPI standards and tools such as StopLight or Swagger
• Implement backend functionality with Java Spring Boot, ensuring high performance and reliability
• Develop secure authentication and authorisation mechanisms based on OAuth 2.0
• Database access strategies, leveraging a hybrid JPA and MyBatis architecture to balance developer productivity with complex query performance
• Write, execute, and maintain unit and integration tests with tools such as JUnit, Postman, and SoapUI
• Build and deploy applications using containerisation (Docker) and orchestration (Kubernetes)
• Contribute to the design and maintenance of CI/CD pipelines to enable continuous delivery and integration
• Collaborate with cross-functional teams to ensure alignment with business and technical requirements
• Stay up to date with emerging technologies, frameworks, and best practices to continuously improve service quality

Qualifications, Skills and Experience

• German skills required at C1 (professional fluency)
• English skills required at B1 for technical aspects
• Strong expertise in analysing, designing, and specifying REST-based web services, including interface description with OpenAPI tools (e.g. StopLight, Swagger)
• Proficiency in database access technologies such as JPA and MyBatis
• Hands-on experience in developing applications with Java Spring Boot
• Solid understanding and practical application of security mechanisms, particularly OAuth 2.0
• Competence in executing unit and integration testing using tools such as JUnit, Postman, and SoapUI
• Familiarity with containerisation and orchestration technologies such as Docker and Kubernetes
• Experience working with CI/CD pipelines to ensure efficient and reliable deployments
• Relevant certifications (e.g. Oracle Certified Professional Java SE, Spring Professional, Kubernetes Administrator, or similar) are an advantage