Senior Java Engineer - Cloud-Native Backend Development 100% (f/m/d) - (Contract through our external payroll partner with immediate start for 12 months with possible extension)

Julius Baer is hiring a Senior Java Engineer - Cloud-Native Backend Development 100% (f/m/d) - (Contract through our external payroll partner with immediate start for 12 months with possible extension) in Zurich, Switzerland. Level rates it ; you can apply on Julius Baer.

Level's read on this job

Little AI ●○○○ is how Level rates this role: aI is not part of the work.
Level classifies it as a senior role.
Level lists 190 other open roles at Julius Baer.

AI in this role

At Julius Baer, we celebrate and value the individual qualities you bring, enabling you to be impactful, to be entrepreneurial, to be empowered, and to create value beyond wealth. Let’s shape the future of wealth management together.

We are seeking a highly skilled Senior Java Engineer to lead the design
and development of a critical cloud-native backend system as part of a
strategic initiative to modernise a large-scale legacy application.

YOUR CHALLENGE

Lead a complete re-architecture using modern Java technologies, primarily Spring Boot
Build scalable, resilient services from the ground up
Develop and operate high-throughput, distributed systems in a cloud environment
Leverage cutting-edge practices, including AI-assisted development tools, to accelerate delivery without compromising quality
Apply deep expertise in enterprise-grade Java backends, cloud platforms, and performance optimisation
Act as a technical leader in complex transformation programmes

YOUR PROFILE

8+ years of experience in server-side Java development, ideally within financial or other regulated, high-performance domains
Deep proficiency in Java 21+ and the Spring ecosystem (Spring Boot, Spring Data, Spring Security, Spring Cloud)
Expertise in designing high-throughput, low-latency systems using asynchronous processing, message brokers (Kafka, RabbitMQ), and caching (Redis, Caffeine)
Experience with workflow and BPMN frameworks (Flowable, Camunda) or streaming/analytics platforms (TIBCO StreamBase, Spotfire)
Hands-on experience building, operating, and refactoring cloud-native microservices on AWS, Azure, or GCP, including migrating monolithic systems
Proficiency with containers (Docker), orchestration (Kubernetes), service mesh, and cloud storage and services
Experience designing and consuming RESTful APIs and gRPC services, including protocol buffers, streaming, and polyglot integration
Expertise in securing APIs and services using OAuth2, JWT, TLS, and identity providers
Proficiency in application observability using Micrometer and OpenTelemetry for metrics, distributed tracing, and contextual logging
Practical exposure to AI-assisted development workflows and integrating generative AI tools into IDEs and code reviews
Experience working within the Markets and/or Trading business domain would be preferred
Strong problem-solving mindset with the ability to articulate technical trade-offs to peers and stakeholders
Proactive collaborator in agile, cross-functional teams, experienced in mentoring junior engineers
Business-fluent English (C1/2)

We are looking forward to receiving your full job application through our online application tool. Further interesting job opportunities can be found on our Career site.

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How we rate this

Senior Java Engineer - Cloud-Native Backend Development 100% (f/m/d) - (Contract through our external payroll partner with immediate start for 12 months with possible extension) at Julius Baer rates 22 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.

Classification

Little AI. AI is not part of the work.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Key facts

Senior Java Engineer - Cloud-Native Backend Development 100% (f/m/d) - (Contract through our external payroll partner with immediate start for 12 months with possible extension) is an open job at Julius Baer.
Level rates this role AI Level 1 of 4: Little AI.
The role is based in Zurich.
The job was posted on September 22, 2026.
Seniority: senior.
Applications are handled by Julius Baer. Apply on Julius Baer