Senior Java Engineer – HPC Cluster Development & Maintenance

Job description

We are looking for an experienced Java developer to develop and maintain a high-performance computing (HPC) cluster consisting of hundreds of servers (on-premises and supplemented by Microsoft Azure). This cluster provides critical computing power for a modern trading platform.

Tasks

• Development and maintenance of Java-based cluster planning and control systems.
• Ensuring high availability and reliability of HPC resources.
• Maintenance and improvement of monitoring systems for infrastructure and client submissions.
• Collaborate with internal stakeholders to align resource allocation with business needs.
• Troubleshooting and performance optimization in on-premises and Azure-extended environments.
• Ensuring compliance with banking regulatory requirements.

Requirements

• Extensive expertise in Java multithreading development (core and enterprise levels).
• Experience with:
  • Distributed execution engines.
  • NoSQL databases.
  • ActiveMQ (messaging).
  • Front-end web technologies (maintenance of legacy user interfaces).
  • Python (for APIs 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 Skills:
  • Scala and C++.
  • Kubernetes (container orchestration).