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Java Developer – Financial Systems Modernization

Hays — Japan · Posted ~3 hours ago

Mid Contract

Skills

Java REST APIs SOAP APIs Microservices ETL Application development Legacy system integration REST SOAP Legacy systems

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Summary ✨ AI‑Generated

A global financial services organization is seeking an English-speaking Java Developer for a long-term modernization initiative. The project involves transforming trade processing and settlement systems, developing interfaces, modernizing reporting, and implementing new back-office capabilities. You will work with Java, REST and SOAP APIs, ETL technologies, microservices, and legacy system integration. Applicants must currently reside in Japan.

Highlights

Join a high-visibility, long-term financial technology transformation project. Work on modernizing critical enterprise systems, develop new interfaces and microservices, and gain exposure to large-scale banking and capital markets technology.

Description

Java Developer | English Only | Tokyo | 2+ Year Project Note***This position is intended for candidates who are currently residing in Japan. Your new company A global financial services organization providing banking, capital markets, investment, and securities services to institutional clients worldwide. Your new role A long-term transformation initiative focused on modernizing a trade processing and settlement platform used within a global markets environment. The project involves building new interfaces, modernizing reporting processes, and implementing a new back-office product. The successful candidate will work on a large-scale modernization program leveraging Java, APIs, ETL technologies, and microservices architecture while integrating with existing legacy systems. This is a highly visible project where the organization will be among the first in the industry to deploy the new platform. Develop and maintain Java applications and microservicesDesign and implement REST and SOAP APIsBuild and support ETL/data integration processesIntegrate new applications with existing trading and settlement systemsParticipate in technical design discussions and architecture reviewsConduct unit testing and support integration testingPerform code reviews and promote development best practicesCollaborate with global teams across Tokyo and offshore locationsSupport business-as-usual applications when requiredContribute to CI/CD and continuous improvement initiatives What you'll need to succeed 5+ years of professional Java development experienceStrong knowledge of Java 8+ and Spring BootExperience developing RESTful and SOAP APIsHands-on experience with ETL or data integration technologiesStrong SQL and database development skillsExperience with unit testing frameworks such as JUnit and MockitoFamiliarity with CI/CD tools and DevSecOps practicesFluent English communication skills What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion on your career.