Freelance Java developer

Gravitas Recruitment Netherlands; Brussel Hoofdstad; Híbrido; EUR 114.000 - 162.000; Jornada completa

Descripción de la vacante

Gravitas Recruitment Group Limited in Brussels is seeking a Freelance Java developer to support the delivery of high-impact digital solutions within an Agile software development team. You will contribute across the full software lifecycle, from analysis and design through development, testing and integration.

The role operates in a hybrid model (50% onsite, 50% remote) in Brussels on a 6-month contract, paying 100 EUR per hour.

Formación

• Minimum 3 years of experience in Java development.
• Strong expertise in Java, Spring Boot, Docker, Kubernetes, microservices architecture and cloud development.
• Excellent understanding of operating systems, networking, databases, middleware and software architecture principles.
• Experience working in Agile/Scrum environments.
• English language skills required.

Responsabilidades

• Develop and maintain Java-based applications using Spring Boot.
• Design and implement cloud-native microservices.
• Build, test and deploy applications in containerised environments.
• Collaborate with Product Owners, developers, testers and architects.
• Participate in Agile ceremonies and sprint planning.
• Contribute to software quality, security and performance improvements.
• Support CI/CD practices.
• Share knowledge and drive best practices within the squad.

Conocimientos

Java development

Spring Boot

Cloud development

Microservices

Agile/Scrum

Docker

Kubernetes

Communication

Teamwork

Analytical mindset

English

Herramientas

Docker

Kubernetes

Spring Boot

Cloud platforms

Descripción del empleo

Freelance Java developer

Contract Summary Box:

Location: Brussels
Contract Length: 6 months
Day Rate / Pay: 100.0 per hour
Start Date: 27/10/2026

Intro Paragraph

The Freelance Java developer role supports the delivery of high-impact digital solutions within an Agile software development team in Brussels. The role contributes across the software development lifecycle, from analysis and design through to development, testing and integration.

Key Skills & Experience

• Minimum 3 years of experience in Java development
• Strong expertise in Java, Spring Boot, Docker, Kubernetes, microservices architecture and cloud development
• Excellent understanding of operating systems, networking, databases, middleware and software architecture principles
• Knowledge of development standards, tools and security practices
• Experience working in Agile/Scrum environments
• Strong analytical mindset
• Excellent communication skills
• Team-oriented approach
• Proactive and results-driven attitude
• Commitment to Agile values and continuous improvement
• Eagerness to learn and share knowledge
• English language skills

Nice to Have

• Experience with IBM Cloud environments
• Experience with ElasticSearch
• Integration experience with distributed systems and/or mainframe platforms
• Experience working in complex enterprise environments
• French at professional working proficiency
• Dutch language skills

Role Overview

The developer will work in a collaborative Scrum environment alongside developers, analysts, testers and architects. The team delivers valuable software increments at the end of each sprint while supporting continuous improvement and knowledge sharing. The working model is hybrid, with 50% onsite and 50% remote work in Brussels.

Key Responsibilities

• Develop and maintain Java-based applications using Spring Boot
• Design and implement cloud-native microservices
• Build, test and deploy applications in containerised environments
• Collaborate closely with Product Owners, developers, testers and architects
• Participate in Agile ceremonies and sprint planning activities
• Contribute to software quality, security and performance improvements
• Support continuous integration and deployment practices
• Share knowledge and drive best practices within the squad

Requirements

• Minimum 3 years of experience in Java development
• English is mandatory
• French at professional working proficiency
• Availability to work in a hybrid setup, with 50% onsite and 50% remote work in Brussels