Senior Java Developer

We are seeking a Senior Java Developer to play a key role in replacing a legacy clearing platform by designing, developing, and delivering robust, scalable interfaces and integration services using modern cloud-native architecture principles.

The successful candidate will work within an agile engineering team to build high-performance Java-based microservices that enable secure, resilient, and efficient data exchange across critical clearing and post-trade systems.

Responsibilities:

• Design, develop, and maintain Java-based microservices to support the replacement of the legacy clearing platform.
• Build and enhance interfaces and APIs that enable secure, reliable, and high-volume integration between clearing, settlement, and downstream systems.
• Develop event-driven solutions using Apache Kafka, including producers, consumers, and streaming integrations to support near real-time processing.
• Deploy, manage, and troubleshoot containerised applications on the OpenShift Container Platform.
• Collaborate with Solution Architects and Technical Leads to implement target-state architectures aligned with enterprise standards and cloud-native design principles.
• Participate in the full software development lifecycle, including requirements analysis, solution design, development, testing, deployment, and production support.
• Create and maintain RESTful APIs and service contracts, ensuring scalability, security, and backward compatibility.
• Write clean, maintainable, and testable code while adhering to coding standards, design patterns, and secure development practices.
• Develop automated unit, integration, and end-to-end tests to ensure solution quality and minimise production defects.
• Support CI/CD pipelines by integrating build, test, deployment, and quality assurance processes within the software delivery lifecycle.
• Monitor application performance, investigate production issues, and implement improvements to optimise system resilience, throughput, and latency.
• Work closely with Business Analysts, Product Owners, QA Engineers, and infrastructure teams to translate business requirements into technical solutions.
• Conduct peer code reviews, provide technical guidance to junior developers, and promote software engineering best practices across the team.
• Produce and maintain technical documentation covering solution designs, APIs, integration patterns, operational procedures, and deployment processes.
• Contribute to platform modernisation initiatives by identifying opportunities to improve architecture, automation, observability, security, and operational efficiency across the clearing technology landscape.

Required Knowledge and Level of Experience:

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related discipline; Master's degree preferred.
• 10+ years' experience in software engineering, with demonstrable lead involvement in at least one production-grade platform within financial services or a similarly regulated industry.
• Proven experience designing and developing microservices-based architectures using Java and Spring Boot.
• Strong hands-on experience with Apache Kafka, including event-driven architecture, messaging patterns, and stream processing.
• Demonstrable experience developing and deploying containerised applications using OpenShift, Kubernetes, or similar container orchestration platforms.
• Experience building and supporting RESTful APIs and integration services within complex enterprise environments.
• Strong knowledge of cloud-native architecture principles, distributed systems, scalability, resilience, and fault-tolerant design.
• Expertise in software engineering best practices, including object-oriented design, design patterns, secure coding, and test-driven development.
• Experience implementing CI/CD pipelines using tools such as Bamboo, ArgoCD, or equivalent.
• Strong proficiency with source control and collaborative development practices using Git/BitBucket.
• Experience with DevOps practices, including containerisation (Docker, Kubernetes), CI/CD pipelines, and infrastructure automation.
• Experience working with relational and non-relational databases, including performance tuning and data integration.
• Knowledge of observability frameworks, including logging, monitoring, tracing, and performance management tools.
• Experience working in cross-functional teams and translating business requirements into scalable technical solutions.