Greetings from Sloka IT Solutions.
Job Title: Senior Java Developer (Architecture Focus)
Location: Brussels, Belgium
Work arrangement: Hybrid, with one day per week in the office
Start date: 2 October 2026
Initial duration: 6 months
Role Overview:
We are looking for a Senior Java Developer with strong architecture experience to help design, build, integrate, and support modern enterprise applications. This is an end-to-end role: you will contribute not only to development and solution design, but also to production maintenance after go-live. You will work closely with customers and delivery teams, translating business goals into practical technical roadmaps and robust, scalable solutions.
Key Responsibilities:
- Design and develop enterprise applications using Java 8 or later, Spring Boot, microservices, and web services.
- Define microservices architectures, RESTful APIs, SOAP integrations, and messaging solutions that connect disparate enterprise applications.
- Evaluate technologies and select appropriate tools and frameworks, including options such as Spring Boot, Quarkus, and Kafka.
- Support the modernization of legacy monolithic applications into distributed systems.
- Design solutions that meet non-functional requirements for high availability, security, fault tolerance, performance, and maintainability.
- Contribute across the full delivery lifecycle, including implementation, deployment, go-live, and ongoing production support.
- Build and maintain CI/CD pipelines using tools such as Azure DevOps and Jenkins.
- Use Git, Maven, Docker, and development environments such as Eclipse or IntelliJ IDEA as part of day-to-day delivery.
- Perform architectural and technical reviews to maintain solution quality and alignment.
- Mentor senior developers and provide technical leadership across the team.
- Work directly with customers and stakeholders to clarify needs, explain technical decisions, and turn business objectives into executable plans.
- Collaborate effectively in an Agile delivery environment.
Qualifications:
- 10 or more years of relevant software development experience.
- Strong hands-on knowledge of Java 8 or later.
- Strong experience with Spring Boot and microservices architecture.
- Experience designing and integrating REST and SOAP web services.
- Sound understanding of messaging systems and enterprise application integration.
- Experience with Azure DevOps, CI/CD pipelines, Jenkins, Git, Maven, and Docker concepts.
- Demonstrated experience designing for availability, security, fault tolerance, and performance.
- Experience modernizing legacy applications and working with distributed systems.
- Strong analytical and problem-solving skills.
- Proven customer-facing experience.
- Experience mentoring developers and leading architectural or technical reviews.
- Good written and spoken English.
Work Arrangement and Location:
This is a hybrid assignment based in Brussels, Belgium, with one day per week in the office.
Interested?
If your background combines hands-on Java engineering, solution architecture, and customer-facing technical leadership, we would be pleased to hear from you.
If interested or know someone suitable for this opportunity, please share the updated CV to [email protected]
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