Senior Java Engineer 100% (f/m/d) (Contract through our external payroll partner with immediate start until 30.09.2027 with possible extension)

Bank Julius Bär & Co. Ltd.; Zürich; Vor Ort; CHF 140.000 - 190.000; Vollzeit

Zusammenfassung

Julius Baer in Zurich seeks a Senior Java Engineer to lead the design and development of a cloud-native backend system as part of a modernisation program. You will own architecture for high throughput, low latency distributed services using Java 21+ and Spring Boot, across cloud platforms with Kubernetes and observability tooling.

The ideal candidate has 8+ years in server-side Java, deep Spring expertise, cloud-native experience, and a hands-on approach to AI-assisted development workflows.

Qualifikationen

• 8+ years of server-side Java development in high-performance or regulated domains.
• Deep Java (21+) and Spring ecosystem expertise with microservices.
• Experience with cloud-native backends, containers, orchestration, and observability.
• Knowledge of security, messaging, and API design in polyglot microservices.

Aufgaben

• Lead design and development of a cloud-native backend system in a large modernization program.
• Architect for high throughput, low latency, and resilient services across cloud platforms.
• Mentor junior engineers and collaborate in an agile, cross-functional team.

Kenntnisse

Java 21+

Spring ecosystem

Microservices

Cloud platforms

Kafka / RabbitMQ

Observability

REST / gRPC

Security (OAuth2/JWT)

Caching (Redis)

AI-assisted workflows

Mentoring

English fluency

Tools

Docker

Kubernetes

OpenTelemetry

Micrometer

gRPC

Protobuf

Jobbeschreibung

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

The project involves a complete re-architecture using modern Java technologies, primarily Spring Boot, and will operate in a high-throughput, distributed environment on the cloud. This role offers the opportunity to build scalable, resilient services from the ground up — leveraging cutting-edge practices including AI-assisted development tools to accelerate delivery without compromising quality. The ideal candidate is a technical leader with deep expertise in enterprise-grade Java backends, cloud platforms, and performance optimisation, who thrives in complex transformation programmes.

YOUR PROFILE

• Minimum of 8 years' experience in developing server-side Java applications, preferably within financial or other regulated high-performance domains.
• Deep proficiency in Java 21+ and Spring ecosystem (Spring Boot, Spring Data, Spring Security, Spring Cloud)
• Experience with any workflow framework languages, such as TIBCO StreamBase and/or Spotfire, Flowable or Camunda with BPMN
• Expertise in designing for high throughput and low latency, applying asynchronous processing and message brokers (Kafka, RabbitMQ)
• Hands-on experience building and operating cloud-native microservices on AWS, Azure, or GCP — including containers (Docker), orchestration (Kubernetes), service mesh, and cloud storage/services
• Proficient in instrumenting applications for observability using Micrometer and OpenTelemetry, including metrics collection (latency, error rates, throughput), distributed tracing across service boundaries, and contextual logging to enable proactive monitoring and rapid incident diagnosis in production environments
• Experience refactoring or migrating monolithic systems to microservice architectures
• Practical exposure to AI-assisted development workflows and familiarity with integrating generative AI tools into IDEs and code reviews
• Experience working within Markets and/or Trading business domain
• Experience securing APIs and services using OAuth2, JWT, TLS, and identity providers
• Experience with caching mechanisms such as Redis or Caffeine for improving performance and reducing database load in high-throughput scenarios
• Hands-on experience designing and consuming RESTful APIs and gRPC services, including protocol buffer definition, bidirectional streaming, and integration in a polyglot microservices environment
• Strong problem-solving mindset with ability to analyse complex systems and propose effective engineering solutions.
• Excellent communication skills – capable of articulating technical trade-offs to both peers and stakeholders.
• Proactive collaborator comfortable working in agile, cross-functional teams; experienced in mentoring junior engineers.
• Ownership-driven attitude with commitment to delivering robust, well-tested software on schedule
• English: Business fluent, native language (C1/2)

The international reference in wealth management Julius Baer is the leading Swiss wealth management group. We focus on servicing and advising sophisticated private clients from around the world, taking into account what truly matters to them - in their business and personal life, today and for future generations. Headquartered in Zurich, we are present in around 60 locations worldwide, including Bangkok, Dubai, Dublin, Frankfurt, Geneva, Hong Kong, London, Luxembourg, Madrid, Mexico City, Milan, Monaco, Mumbai, Santiago de Chile, Shanghai, Singapore, Tel Aviv, and Tokyo.

Why join Julius Baer?

At Julius Baer our employees enjoy the benefits of a global company with the support and collegiality of a much smaller one. We are growing quickly, but we remain dedicated to maintaining our accessible structure with flat hierarchies, and approachable and supportive leaders. With offices around the world, we offer an international and stimulating work environment and the opportunity to work with a diverse team of highly motivated colleagues, bringing the best of the bank to our clients. Our core values of Care, Passion, and Excellence define the tone of how we interact with each other and our partners. Committed to your success Whether nurturing young talent with our renowned apprentice scheme, enabling ambitious university graduates to put theory into practice with our Graduate Programme, or providing first-class opportunities for experienced professionals, we look after our employees. We believe in continuous learning as a company and as individuals, which is why we put a focus on the health and well-being of our employees and offer flexible working options, a wide array of benefits, and extensive career development programmes. For more information visit www.juliusbaer.com or contact us via the Contact Form.