Senior Java Engineer (Kubernetes, Kafka, Docker) - Hybrid

  • Salt Digital Recruitment
  • 09/06/2026
Full time Information Technology Telecommunications Java Oracle Testing

Job Description

Senior Java Engineer (Kubernetes, Kafka, SpringBoot) - Finance - London

Daily rate: £550 - £750 (inside IR35) - Duration: 12 months - Hybrid: 8 days per month - Start: ASAP

A banking client is looking for a Senior Java Engineer with Kafka and Docker skills to join the team on a freelance basis. Must be based in the UK and be happy to be on site 8 days per month which is mandatory.

Responsibilities & Duties
  • Working as part of an Agile development team to deliver the migration of the legacy application to a new event based and service oriented architecture solution, working in collaboration with the Solution Architect, Technical Lead, Application architects and other stakeholders.
  • Lead delivery of a coherent end to end IT solution that meets both functional and non functional requirements and ensures compliance with the Enterprise engineering and architecture standards.
  • Ensure end to end consistency of solution delivery across platforms and teams by organising walkthroughs of the solution with delivery teams.
  • Ensure that the solution meets guidelines and standards for design and development; undertake hands on development and coach staff in the new technologies used. The successful candidate will be expected to support the development of more junior colleagues.
Technical Skills
  • Strong systems development experience at all stages (design, development, testing, live implementation and post implementation support).
  • Strong hands on Object Oriented Design skills.
  • Strong core Java programming skills.
  • Experience developing services/micro services in Java.
  • Experience developing containerised services using Docker and Kubernetes.
  • Hands on SpringBoot skills.
  • Experience deploying on Unix or Linux.
  • Hands on experience using the Kafka ecosystem.
  • Experience with profiling and performance tuning.
  • Experience with Behaviour Driven and Test Driven development principles and skills.
  • Experience with Public Cloud development.
Desirable Skills
  • Working in an Agile development team.
  • Designing and implementing platform independent, database independent event driven applications.
  • Database design skills in technologies such as Oracle, Splunk.
  • DevOps principles, processes, and tooling.
  • IBM MQ Messaging Standards (ISO 15022, ISO 20022, JSON).
  • Working in Financial Market Infrastructure and/or Regulated environments.

Rates depend on experience and client requirements.