Senior Java Developer – Real-Time Event-Driven Systems @ Link Group

We’re looking for a  Senior Java Developer to join a global engineering team building a large-scale, event-driven platform for pricing, trade execution, and processing in the financial markets domain.

The system supports multiple trading desks and asset classes — including FX Options, Interest Rate Derivatives, Commodities, and Credit Derivatives — providing real-time pricing, risk, and booking capabilities.

You will work on a distributed microservices architecture , leveraging Kafka , Reactive programming , and Spring Boot to build scalable and performant systems that handle large volumes of real-time data.

Why Join

• Work on a strategic real-time financial platform with a global impact
• Engage in complex, large-scale engineering challenges
• Collaborate with international teams and domain experts
• Be part of a strong technical culture — open, intellectual, and delivery-focused
• Opportunity to shape architecture and influence technical direction
• 7+ years of professional experience in Java development
• Strong hands-on skills in Java , Spring Boot , Reactive programming (RxJava)
• Proven experience with Kafka in production systems
• Solid understanding of event-driven architecture and data serialization
• Practical experience with microservices , containerization , and cloud deployment (OpenShift / Kubernetes / Helm / Docker)
• Good understanding of SQL databases (Oracle) and distributed data stores (Hazelcast, Cassandra)
• Familiarity with CI / CD pipelines (preferably Azure DevOps)
• Experience with monitoring tools such as ELK, Prometheus, Grafana
• Strong problem-solving and debugging skills
• Fluent English communication skills (spoken and written)

Nice to Have

We’re looking for a  Senior Java Developer to join a global engineering team building a large-scale, event-driven platform for pricing, trade execution, and processing in the financial markets domain.

The system supports multiple trading desks and asset classes — including FX Options, Interest Rate Derivatives, Commodities, and Credit Derivatives — providing real-time pricing, risk, and booking capabilities.

You will work on a distributed microservices architecture , leveraging Kafka , Reactive programming , and Spring Boot to build scalable and performant systems that handle large volumes of real-time data.

Why Join

,[Design, implement, and maintain microservices using Java, Spring Boot, and RxJava , Develop event-driven systems based on Kafka and WebSocket communication , Participate in the full software development lifecycle — from requirements to production release , Collaborate with business analysts, developers, and stakeholders across global teams (Europe & Asia) , Optimize application performance and ensure system reliability , Write efficient, testable, and well-documented code following best engineering practices , Contribute to technical design discussions and architecture evolution , Support and mentor other developers within the local team ] Requirements : Java, Kafka, Spring Boot, Microservices, RxJava, WebSocket, OpenShift, Kubernetes, Helm, Docker, SQL, Oracle, Hazelcast, Prometheus, Cassandra, CI / CD Pipelines, Azure, DevOps, ELK Stack, Grafana, Communication skills, React, TypeScript Additionally : Integration events.