Senior Java Developer / Architect (Contract – Hybrid, Brussels)
Location:
Brussels, Belgium (Hybrid)
Duration:
12-month initial contract (extendable)
Rate:
€400–€500 per day (Gross)
Role Overview
We are looking for an experienced
Senior Java Developer / Architect
to join a large-scale digital transformation project. In this role, you will design, architect, and develop enterprise-grade backend systems using
Java, Spring Boot, REST
, and
Oracle
, while also contributing to solution design and integration with technologies such as
Elasticsearch
and
Flowable
.
Qualifications
Experience Level:
Senior –
7+ years of professional experience
in Java backend development and architecture.
Proven expertise in
Java (Spring Boot)
and
REST API development
.
Strong hands-on experience with
Oracle databases
and
SQL
.
Familiarity with
GraphQL
and
Angular
is an advantage.
Practical experience with
Elasticsearch
and/or
Flowable
(BPM/workflow engines).
Deep understanding of
software architecture
,
design patterns
, and
microservices
principles.
Experience with
CI/CD
,
Git
, and containerization tools (
Docker
,
Kubernetes
) is desirable.
Strong communication and collaboration skills, with the ability to work in an international environment.
Fluent in
English
(spoken and written).
Key Responsibilities
Design and implement scalable, secure backend architectures using
Java (Spring Boot)
.
Develop and maintain
RESTful APIs
and integrations with relational databases.
Contribute to system architecture decisions, performance optimization, and best practice implementation.
Integrate backend systems with
ElasticSearch
for data indexing and search capabilities.
Collaborate on
Flowable-based workflow
and process automation implementations.
Work closely with front-end teams using
Angular
to ensure seamless integration.
Support and guide development teams with architectural decisions, code reviews, and technical mentoring.
Ensure code quality, maintainability, and adherence to security standards.
Participate in Agile ceremonies, stakeholder meetings, and progress reviews.
If interested, please apply with an up to date CV