Senior Java Engineer – Banking Platform (Hybrid)

On behalf of our client, a leading Swiss financial institution, Swisslinx is looking for an experienced Senior Java Engineer to join a team developing a strategic client-data platform.

• Design, develop and maintain enterprise applications using Java and Spring Boot.
• Build scalable microservices and distributed systems.
• Develop event-driven services and integrations using Apache Kafka.
• Translate business and non-functional requirements into robust technical solutions.
• Contribute to solution design and architectural decisions.
• Apply clean-code principles, design patterns, code reviews and test-driven development.
• Build and maintain automated tests using JUnit, Mockito and related frameworks.
• Support CI/CD pipelines and containerised deployments using Kubernetes.
• Monitor application performance and reliability using observability tools such as Grafana.
• Apply authentication, authorisation and secure-development principles.
• Collaborate with business and technology stakeholders across Zurich and Singapore.
• Participate in the team’s on-call rota.

The platform provides a central source of sales relationships and client intelligence, connecting multiple upstream systems with critical sales and business applications. You will play a senior, hands-on role in designing and delivering a scalable, resilient and secure platform supporting global business operations.

• Extensive professional Java development experience, including core Java and enterprise application development.
• Strong hands-on experience with Java and Spring Boot.
• Advanced knowledge of concurrent and multithreaded programming.
• Demonstrable experience designing and delivering scalable, highly available or mission-critical systems.
• Strong experience with microservices and distributed-system design.
• Practical experience with event-driven architecture and Apache Kafka.
• Experience with cloud-native application development; Microsoft Azure is preferred.
• Practical knowledge of Kubernetes, containerised deployment and DevOps practices.
• Strong automated-testing experience, ideally including TDD, JUnit and Mockito.
• Understanding of CI/CD, monitoring, observability and production support.
• Knowledge of application security, authentication and authorisation.
• Ability to communicate complex technical topics clearly to technical and business stakeholders.
• Proactive, collaborative and solution-focused approach.
• Business-fluent English.

This is an opportunity to contribute to a strategically important platform within an international financial-services environment. The assignment combines hands-on engineering with technical design and offers exposure to complex, high-availability systems used across global business operations. Our client offers:

• 6 month contract with strong chance of extension
• 2 days home office
• Modern office in central Zurich
• Two stage interview process (all conducted via video)
• Start date ASAP

If you are a Senior Java Engineer with strong distributed-systems and Kafka experience, we look forward to receiving your application.