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

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 for a senior backend and distributed systems engineer
with extensive experience designing, building, and operating
mission-critical financial systems. Proven expertise in Java-based
backend architectures, distributed systems, and low-latency,
high-availability services. Strong production mindset with end-to-end
ownership across the full software lifecycle—from architecture and
design through deployment, operations, and optimization. Comfortable
acting as a technical authority in complex, globally distributed
environments.
In addition to enhancing our core platform, the team is building a
strategic new channel that brings investment capabilities directly to the
bank's external clients through seamless integration with the e-banking
platform. Engineers joining the team will have the opportunity to shape
the architecture, scalability, and operational model of this highly visible
initiative from an early stage.

YOUR CHALLENGE

Key Responsibilities
• Design and evolve robust distributed systems, balancing scalability, latency, consistency, and fault tolerance

• Apply distributed systems principles (e.g. consistency models, idempotency, back-pressure, resiliency patterns) to real-world financial workloads
• Develop and maintain high-performance backend services and APIs using Java, Spring, and Spring Boot
• Optimize end-to-end latency, asynchronous processing, and efficient IO
• Identify and resolve performance bottlenecks through profiling, benchmarking, and load testing
• Integrate complex financial platforms and third-party services, ensuring correctness, data integrity, and operational resilience
• Contribute to the expansion of the platform into digital client channels, designing and building backend services that power client-facing wealth and investment capabilities integrated into
the bank's e-banking ecosystem.
• Design reliable messaging and integration flows using JPA, JDBC templates, JMS, and event-driven patterns
• Code Quality and Best Practices: Write clean, maintainable, and efficient code while adhering to industry best practices, including code reviews, testing, and CI/CD.
• Apply financial-grade engineering principles (auditability, security, controlled change
• Collaboration: Work closely with product managers, designers, and other stakeholders to gather requirements and translate them into technical specifications and deliverables.

YOUR PROFILE

Technical skills:
• Languages & Platforms: Java (Core Java, Collections, JSON, JDBC), Spring Framework, Spring Boot
• Architecture: Distributed systems, microservices, event-driven design, low-latency systems
• Databases & Messaging: JPA, JDBC, relational databases, JMS
• Operating Systems: Unix/Linux, bash scripting
• Security: OAuth2, API security, IAM concepts
• Good code review practices and pride in code quality.
• Ability to work independently and take ownership of projects.
• Willingness to collaborate in a global team with members in Zurich and Singapore.
• Previous experience in the financial industry is a plus.

Education and Skills Requirements:

• Experience with cloud platforms, preferably Microsoft Azure.
• Knowledge of microservices architecture and containerization (e.g., Docker, Kubernetes).
• Familiarity with CI/CD pipelines and DevOps practices

• Exposure to API security, OAuth2, and related standards.

Softskills:

• Strong ownership mindset with focus on business impact and reliability
• Analytical problem-solver with a performance- and quality-driven approach
• Team player
• Ability to work in an agile environment

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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