Java Developer

Salary: £50,000 - 70,000 per year

Requirements:

• Proven hands-on expertise in Core and Enterprise Java
• Expertise in the Spring Framework, including Spring Boot, Spring Batch and Spring Integration
• Ability to reverse-engineer, analyse and integrate complex, highly customised legacy enterprise applications
• Strong data management skills, including ingesting and transforming large-scale external feeds
• Experience documenting data lineage and metadata while maintaining data integrity across downstream ledger, risk and margin systems
• Extensive experience working in structured SDLC environments using Agile and Waterfall
• Advanced proficiency with enterprise collaboration and delivery tools
• Strong communication, listening and influencing skills, including the ability to translate business requirements into technical implementations
• Oracle Database experience, including SQL and PL/SQL, is desirable
• Experience working collaboratively in complex global financial services environments is desirable
• The client accepts workers only through an Umbrella or PAYE engagement model

Responsibilities:

• Design and build Spring Batch and Spring Integration pipelines to ingest, transform and validate large-scale daily CCP clearing and market data feeds
• Produce architectural specifications and interface inventories by reverse-engineering legacy code, PL/SQL packages and database dependencies
• Establish data mappings, lineage tracking and schema definitions to maintain ledger, risk and margin data integrity
• Develop scalable, highly concurrent Java and Spring Boot microservices backed by optimised, low-latency Oracle SQL and PL/SQL procedures
• Coordinate with global, multidisciplinary stakeholders to deliver functional designs and end-to-end Agile and Waterfall deployment artefacts

Technologies:

• Java
• Oracle
• SQL
• Spring
• Spring Boot
• microservices
• Support

More:

We are AMS, a global workforce solutions partner focused on inclusive, dynamic and future-ready workplaces. Through our Contingent Workforce Solutions service, we work as an extension of clients recruitment teams, connecting them with interim and temporary professionals. For our client, a Big Four consultancy operating in more than 150 countries and serving public and private organisations across multiple industries, we are recruiting a Java Integration Engineer for a six-month contract in London, with three days per week in the office. The role supports complex enterprise applications in a global financial services environment, using Java, Oracle and Spring to work with customised legacy platforms and large-scale external data feeds.

last updated 39 week of 2026