Senior Java Developer / Java Architect 10926875

ITProposal; Brussel Hoofdstad; Hybride; EUR 90 000 - 120 000; Plein temps

Résumé du poste

ITProposal in Brussels, Belgium, seeks a Senior Java Developer / Java Architect to design, develop, and maintain scalable enterprise applications using Java 8+ and cloud tech. You will lead hands-on development, system design, and DevOps practices, shaping APIs, microservices, and migrations, while mentoring engineers and collaborating with customers in an Agile environment.

This role offers a hybrid work arrangement (1 on-site day per week) with a start date in October 2026 for a 6-month

Qualifications

• 10+ years of relevant experience.
• Strong expertise in Java 8+, Spring Boot, Microservices, REST/SOAP.
• Experience with Azure DevOps, Git, CI/CD, Maven, Jenkins, and Docker.
• Kafka or similar messaging technologies is a plus.
• Strong system design and analytical skills.
• Proven customer-facing experience.
• Excellent written and spoken English.

Responsabilités

• Design and develop Java 8+ microservices with Spring Boot.
• Design REST/SOAP APIs, messaging systems, and enterprise integrations.
• Define scalable architectures with focus on performance, security, availability, and fault tolerance.
• Evaluate technologies and support modernization of legacy applications.
• Manage CI/CD pipelines and contribute to DevOps practices.
• Support applications throughout their full lifecycle, including post-go-live maintenance.
• Perform architectural and code reviews and mentor senior developers.
• Work closely with customers and translate business requirements into technical solutions.
• Contribute to an Agile development environment.

Connaissances

Java 8+

Spring Boot

Microservices

REST/SOAP

Azure DevOps

Git

CI/CD

Maven

Jenkins

Docker

Description du poste

Senior Java Developer / Java Architect

We are looking for an experienced Senior Java Developer / Java Architect to design, develop, and maintain scalable enterprise applications using modern Java and cloud technologies. The role combines hands‑on development, system design, integration, and technical leadership.

Key Responsibilities

• Design and develop Java 8+ / Spring Boot microservices.


• Design REST/SOAP APIs, messaging systems, and enterprise integrations.


• Define scalable architectures with focus on performance, security, availability, and fault tolerance.


• Evaluate technologies and support modernization of legacy applications.


• Manage CI/CD pipelines and contribute to DevOps practices.


• Support applications throughout their full lifecycle, including post-go-live maintenance.


• Perform architectural and code reviews and mentor senior developers.


• Work closely with customers and translate business requirements into technical solutions.


• Contribute to an Agile development environment.

Requirements

• 10+ years of relevant experience.


• Strong expertise in Java 8+, Spring Boot, Microservices, REST/SOAP.


• Experience with Azure DevOps, Git, CI/CD, Maven, Jenkins, and Docker.


• Experience with Kafka or similar messaging technologies is a plus.


• Strong system design and analytical skills.


• Proven customer‑facing experience.


• Excellent written and spoken English.


• Strong communication, leadership, and mentoring skills.

Work Arrangement

• Location: Brussels, Belgium


• Hybrid: 1 day per week on-site.


• Start Date: 2 October 2026


• Duration: 6 months