Java Developer Payment application

We are seeking a skilled and detail-oriented Java developer to join the Payments Engineering team. The candidate will work in a pod with 3-4 experienced Java developers and focus on adapting legacy applications for non-discretionary ISO20022 changes, which is a new financial messaging standard. An ideal candidate thrives in complex environments, is able to work under time pressure, is keen to understand business logic and excels at reverse engineering a complex code base to implement high-impact changes.

Key Responsibilities:

• Participate in requirements gathering sessions with business users

• Participate in analysis, solution design and planning the work with the Engineering team

• Implement and test changes, participate in code reviews, assist in UAT and code releases

• Think outside the box when implementing changes and improve the stack as you go along.

The position requires 4 days/week in the office.

Qualifications:

• A Bachelor's or Master's degree in a computational field (Computer Science, Engineering, Applied Mathematics or a related quantitative discipline)

• 4+ years of relevant work experience.

• A solid grasp of Java, Spring, Hibernate, and DB2

• Spring Boot — dependency injection, auto-configuration, Spring Data, Spring Security

• Apache Kafka — producers, consumers, Kafka Streams (stateful processing, state stores, aggregation), and Kafka Connect

• MongoDB — document modelling, Spring Data MongoDB

• Maven — multi-module project management, dependency resolution, build lifecycle

• Docker — containerization, image builds

• RESTful API design and development

• Experience with event-driven / microservices architectures in a distributed systems environment

• Familiarity with Git and CI/CD pipelines (GitLab CI preferred)

Preferred:

• Angular

• IBM MQ / JMS — queue managers, channels

• Infrastructure as Code — infrastructure provisioning and management

• ISO 20022 or financial messaging standards (SWIFT, CBPR+, FIN)

• Python scripting

• Experience in financial services, payments, or banking technology

• Strong analytical skills

• Ability to collaborate effectively and work in a global team

• Ability to stay commercially focused, whilst not losing sight of code quality