Job Title: Java Developer Location: Farnborough Salary/Rate: Up to £320 / Day Inside IR35 Start Date: 10/11/2025 Job Type: Contract until the end of the year Company Introduction We have an exciting opportunity available with one of our leading financial technology clients! They are currently looking for a skilled Java Developer to join their innovative engineering team, contributing to high-performance systems within the payments and financial services domain. Required Skills/Experience Strong experience developing in Java 17 or later. Solid knowledge of the Spring ecosystem, including Spring Web, Spring Data, Spring JPA, and messaging frameworks. Proven experience with REST API development and integration. Practical experience with Docker, Helm, and OpenShift (OCP). Understanding of AWS fundamentals and familiarity with cloud computing concepts and terminology. Hands-on experience working with RDBMS (preferably PostgreSQL or AWS Aurora). Experience with test automation frameworks such as Cucumber and performance testing tools like Gatling. Familiarity with CI/CD pipelines and tools such as Git and Jenkins. Experience with Gradle or similar build tools (bonus points for Gradle). (Bonus) Background in Financial Disputes Management or Payment Networks. If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.