Java Developer (A)

Please note that due to applicable Swiss legislation, we can only consider applications from Swiss citizens, EU citizens, and individuals with a valid work permit.

Remote work from abroad is not possible.

Tasks

• Design, develop, and maintain Spring Boot microservices and libraries addressing logging, security, messaging (Kafka and other MQs), and other cross-cutting concerns
• Apply integration and architectural patterns such as Inbox/Outbox, event-driven processing, and similar patterns to ensure reliable distributed systems
• Build and enhance frontend interfaces using React with TypeScript when required
• Collaborate with business analysts, product owners, and other teams to understand requirements and deliver solutions
• Apply Java design patterns and best practices consistently to ensure maintainable, scalable code
• Analyse complex problems and develop innovative, efficient solutions
• Continuously improve code, processes, and system reliability with a proactive mindset
• Work with databases, particularly Oracle, including schema design, query optimisation, and integration with backend services
• Contribute to observability, logging, and monitoring for backend services where needed

• Expert-level Java development with deep experience in Spring Boot and Spring Security
• Strong experience with Maven, microservices, and distributed systems
• Solid understanding of multithreading, concurrency, and performance optimisation in backend systems
• Knowledge and practical application of Java design patterns
• Familiarity with integration and architectural patterns, including Inbox/Outbox, event-driven design, and other distributed system patterns
• Experience with messaging systems such as Kafka and other MQs
• Experience with databases, particularly Oracle, including query optimisation and integration with Java applications
• Knowledge of Kubernetes, Docker, and Helm for containerised applications is a nice-to-have
• Experience with frontend frameworks (React, Angular, Vue.js) beyond TypeScript basics is a nice-to-have
• Familiarity with CI/CD pipelines and DevOps tooling (GitLab, Jenkins, Azure DevOps)
• Experience with observability tools like Prometheus, Grafana, or Loki is a nice-to-have
• Understanding of trunk-based development and backward-compatible software design
• Exposure to authentication protocols (LDAP, OIDC, Kerberos) is a plus
• Fluency in English (verbal/written)

• Proactive, structured, and self-driven working style
• Strong communication skills and ability to collaborate with diverse stakeholders
• Analytical mindset with a solution-oriented approach
• Ability to thrive in fast-paced trading and front office environments
• High commitment to documentation, code quality, and continuous improvement