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Salt

Senior Java Software Engineer

Salt
Belgium · Full-time · Mid-Senior

Senior Java Software Engineer (Kafka, Cloud) – Finance – Belgium

Day rate: €500 - €700

Duration: 12 months

Hybrid: 8 days per month in Belgium

Start: ASAP


A banking client of mine is looking for a Senior Java Engineer with Kafka and Docker skills to join the team on a freelance basis. We are specifically looking for an individual with strong Core Java expertise, as this role primarily involves server-side development. Must be based in Belgium and happy to be on site 8 days per month which is mandatory.


Responsibilities & Duties

  • Working as part of an Agile development team to deliver new event-based and service-oriented architecture solution, working in collaboration with the Solution Architect, Technical Lead, application architects and other collaborators.
  • Lead delivery of a coherent end-to-end IT solution that meets both functional and non-functional requirements.
  • Ensuring that the IT solution aligns with the Enterprise engineering and architecture standards.
  • Ensuring end-to-end consistency of solution delivery across platforms and teams by, for instance, coordinating walkthroughs of the solution with delivery teams.
  • Ensuring that the solution meets guidelines and standards for design and development.
  • Undertaking hands-on development and mentor staff in the new technologies used.
  • Mentoring of more junior developers.


Technical Skills:

  • Strong systems development experience at all stages of systems development covering design, development, testing, live implementation and post implementation support
  • Strong hands-on Object-Oriented Design skills
  • Strong core Java programming skills
  • Experience of developing services/micro-services in Java
  • Experience of developing containerised services using Docker and Kubernetes
  • Hands-on Spring Boot skills
  • Experience of developing and deploying on Unix or Linux
  • Hands-on experience of using the Kafka ecosystem
  • Experience of profiling and performance tuning
  • Experience of Behaviour-Driven and Test-Driven development principles and skills


Soft Skills:

  • Have the ability to empower those you mentor, coach & lead!
  • Be a stand-out colleague and role model, willing to participate in peer reviews and to be reviewed by peers
  • Be reliable, driven and able to work without close management and supervision
  • Possess encouraging communication and presentation skills to present proposals both orally and in writing
  • Have the demonstrable ability to complete work within agreed timescales and identify problems and provide the most suitable solution(s)


Desirable Skills:

  • The following are not essential but would be a plus if the candidate can demonstrate any experience of:
  • Messaging Standards, for example JSON.
  • 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
  • Working in Financial Market Infrastructure and/or Regulated environments
  • Affinity with PL1 and IBM Mainframe

Key Skills

Ranked by relevance

java kafka docker spring boot server cloud unix
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Posted
Jan 26, 2026
Type
Full-time
Level
Mid-Senior
Location
Brussels
Company
Salt

Industries

IT Services IT Consulting Software Development

Categories

Consulting Information Technology

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