Java Engineer – HPC Cluster Development & Maintenance, 100% (f/m/d)

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. Join us as a Java Engineer and play a key role in advancing our High-Performance Computing (HPC) infrastructure. Our hybrid platform, spanning hundreds of on-premises servers and cloud resources in Microsoft Azure, delivers the high-performance, resilient computing capabilities that power a state-of-the-art trading floor.

You will be instrumental in maintaining, optimizing, and scaling this critical environment as we continue to grow and innovate. The cluster scheduling and control systems are primarily built in Java, with Apache Ignite as the clustering layer. Jobs are received from internal clients via legacy HTTP and ActiveMQ interfaces, while modern clients use an in-house API developed in Java and Python. System statistics are collected in MongoDB and Elastic/Kibana.

This role requires ensuring high availability for a mission-critical resource, developing a deep understanding of a large existing codebase, and proposing improvements. You will also maintain and enhance multiple monitoring systems for both infrastructure and client job submissions.

Future-proof and maintain Java-based cluster scheduling and control systems

• Ensure high availability and reliability of HPC resources
• Maintain and improve monitoring systems for infrastructure and client submissions
• Collaborate with internal stakeholders to balance resource allocation with business requirements
• Troubleshoot and optimize performance across on-prem and Azure-augmented environments
• Ensure compliance with banking regulatory requirements

E

• Strong Java development expertise (core and enterprise-level)
• Experience with distributed systems Experience with:
• Distributed Execution Engines.
• NoSQL Databases
• ActiveMQ (messaging)
• Front-end Web Technologies (legacy UI maintenance)
• Python (for API and tooling) Familiarity with:
• Azure Portal and Azure SDK for Java
• Red Hat Linux
• Understanding of banking systems and regulatory requirements
• Language: Fluent English; German is a plus Bonus

• Scala and C++
• Kubernetes (container orchestration)
• Java multithreaded development expertise Soft

• Used to designing and developing collaboratively
• Good code review skills, pride in code quality
• Focused, capable of driving the delivery of technical changes to completion
• Ability to work in a fast-paced environment with the occasional priority changes and context switches
• Structured, able to follow processes systematically
• Very good English and communication skills
• Team player
• Ability to work in an agile environment
• Positive thinking personality with a can-do attitude
• Self-motivator, able and willing to work with minimal direction 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 . Is this not quite what you are looking for? Set up a job alert by creating a candidate account here .

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