Key Requirements

• Strong hands-on experience with Java development in production environments (5+ years)
• Understanding of Java concurrency, multithreading, and network communication
• Experience with Spring Framework, Spring Boot and distributed systems integration
• Good knowledge of SQL, JDBC, JPA/Hibernate
• Practical experience with clustered database, cache, search, and messaging technologies including MySQL/XtraDB, MongoDB, Elasticsearch, Redis, and Apache Artemis
• Experience with web application development; Angular knowledge is an advantage
• Experience with IntelliJ, Maven, Git, GitLab CI/CD, and container technologies
• Good understanding of Kubernetes, Linux (Debian), and containerizing Java apps
• Education in Computer Science or a related field
• Fluent in English
• Open to relocating to Switzerland

Nice To Have

• German language skills
• Strong soft skills (problem-solving, teamwork, communication)

What's Offered

• Experienced and highly skilled engineering team with an open and informal culture
• Exciting and technically challenging projects in the messaging domain
• Meaningful responsibility in a small team without unnecessary organizational layers
• High-quality technical equipment and a modern, comfortable office close to public transport

About the Role
Our client's engineering team designs, builds, and operates the company's messaging platform on self-managed infrastructure, taking full ownership of the entire software lifecycle - from understanding customer needs and defining requirements, through design, implementation, testing, deployment, and long-term operation. The team works in a cloud-native, automation-first environment with strong engineering ownership and freedom to shape technologies, tools, and solutions.
Work model: Hybrid, with up to two home-office days per week where operational responsibilities allow. Permanent, full-time position (80%-100%), based in Switzerland.
Key Responsibilities

• Participate actively in software architecture, technology selection, and engineering decisions
• Design, develop and operate high-performance Java backend services and REST APIs
• Implement scalable concurrent and network-oriented application logic using modern Java technologies
• Build modular services using Spring Framework and Spring Boot
• Design and optimize data access layers using JDBC, JPA, and related persistence technologies
• Integrate applications with MySQL/XtraDB Cluster, MongoDB, Elasticsearch, Redis, and Apache Artemis
• Contribute to developing and maintaining Angular web applications and integration interfaces
• Collaborate closely with Platform Engineering and Infrastructure & Network Engineering teams regarding deployment, observability, and operational reliability
• Build and maintain CI/CD pipelines using Maven, Git, and GitLab
• Package and deliver applications as container images for Kubernetes environments
• Take ownership of software quality through testing, code reviews, and continuous improvement
• Participate in on-call rotation for critical application support and incidents