Java Developer

AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies.

Our Contingent Workforce Solutions (CWS) is one of our service offerings. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed.

Our Client is a big four consultancy firm with a global presence, operating in over 150 countries. This organisation works with many public and private companies spanning multiple industries. The advisory work that they cover spans across audit, Accountancy, tax, corporate finance and consulting.

On behalf of this organisation, AMS are looking for a Java Developer for a 6 Month contract based in London with 3 days/week in office.

Purpose of the role:

We are looking for a Java Integration Engineer to analyse, enhance and integrate complex enterprise applications within a global financial services environment. The role will use Java, Oracle and the Spring Framework to support highly customised legacy platforms and process large-scale external data feeds. You will help protect data integrity across downstream ledger, risk and margin systems by documenting data lineage and metadata. Working across Agile and Waterfall delivery, you will translate business requirements into robust technical solutions and collaborate effectively within a highly matrixed organisation.

What you'll do:

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

The skills you'll need:

• Proven hands-on expertise in Java (Core and Enterprise) is essential
• Desirable: Strong Oracle Database experience, including SQL and PL/SQL
• Desirable: experience working collaboratively within complex, global financial services
• Expertise across the Spring Framework (Spring Boot, Spring Batch and Spring Integration).
• Ability to reverse-engineer, analyse and integrate complex, highly customized legacy enterprise applications.
• Strong data management capability, including ingestion and transformation of large-scale external feeds (e.g. daily CCP clearing files or market data)
• Experience documenting data lineage and metadata, while maintaining strict data integrity across downstream ledger, risk and margin systems.
• Extensive experience operating within structured SDLC environments using Agile and Waterfall
• Advanced proficiency in enterprise collaboration and delivery tools.
• Strong communication, listening and influencing skills, with the ability to translate business requirements into technical implementation.

Next steps

Next steps

This client will only accept workers operating via an Umbrella or PAYE engagement model.

If you are interested in applying for this position and meet the criteria outlined above, please click the link to apply and we will contact you with an update in due course.

AMS, a Recruitment Process Outsourcing Company, may in the delivery of some of its services be deemed to operate as an Employment Agency or an Employment Business