Java Full Stack Developer
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Before you apply
LocationBrussels, Brussels, Belgium
Typefull-time
SenioritySenior
Experience10+ yrs
DepartmentInternational BU
Company size501–1,000 people
PostedOct 29, 2026 · 6d ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
University degree corresponding to EQF Level 7 (Master's degree or equivalent 5 years of higher education)
Minimum 10 years of professional IT experience
Very good command of English (B2 level or higher), both written and spoken
Minimum 6 years of experience in Java application development
Minimum 4 years of experience with the Spring Framework
Minimum 4 years of experience developing front-end applications using Angular and TypeScript
Minimum 2 years of experience with Hibernate and performance-optimized development using Oracle Database
Experience working with large-scale enterprise Information Systems
Strong expertise in Java, including Spring Boot, Hibernate, and REST API development
Proficiency in Angular, TypeScript, JavaScript, HTML, and CSS
Experience with relational databases such as PostgreSQL or Oracle
Knowledge of Git/GitLab, JIRA, and Confluence
Hands-on experience with static code analysis tools (e.g., SonarQube, Fortify, Snyk)
Experience working in Agile environments, with exposure to DevOps/DevSecOps practices
Knowledge of cloud platforms (AWS, Azure) and CI/CD pipelines
Experience with Docker and Kubernetes for application deployment and management
Experience designing, developing, and securing RESTful APIs and web services
Strong understanding of application security, performance optimization, and software development best practices
Oracle Certified Java Developer (Associate or Professional) or an equivalent Java certification
Skills
Java
Angular
Spring Framework
Spring Boot
Hibernate
TypeScript
JavaScript
HTML
CSS
Oracle Database
PostgreSQL
Git/GitLab
JIRA
Confluence
SonarQube
Fortify
Snyk
AWS
Azure
Docker
Kubernetes
REST API
About the company
At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for an Java Full Stack Developer to join our UniQue team.
What will you be doing in this role?
•
Develop and maintain front-end applications using Angular and back-end services using Java.
•
Design, develop, and integrate APIs and scalable software solutions.
•
Implement core business logic and ensure application security best practices.
•
Build responsive, high-performance web applications across different devices and browsers.
•
Write clean, maintainable code and participate in code reviews and testing.
•
Troubleshoot, debug, and optimize applications to improve performance and reliability.
•
Prepare technical documentation and support application maintenance.
•
Collaborate with cross-functional teams to deliver end-to-end solutions across the full technology stack.
•
Deploy and manage applications using cloud platforms, CI/CD pipelines, and containerization technologies.
•
Bridge the gap between front-end and back-end developers, facilitating communication and ensuring cohesive integration of all system components.
Requirements
What do you need to succeed in this position?
•
University degree corresponding to EQF Level 7 (Master’s degree or equivalent 5 years of higher education).
•
Minimum 10 years of professional IT experience.
•
Very good command of English (B2 level or higher), both written and spoken.
•
Minimum 6 years of experience in Java application development.
•
Minimum 4 years of experience with the Spring Framework.
•
Minimum 4 years of experience developing front-end applications using Angular and TypeScript.
•
Minimum 2 years of experience with Hibernate and performance-optimized development using Oracle Database.
•
Experience working with large-scale enterprise Information Systems.
•
Strong expertise in Java, including Spring Boot, Hibernate, and REST API development.
•
Proficiency in Angular, TypeScript, JavaScript, HTML, and CSS.
•
Experience with relational databases such as PostgreSQL or Oracle.
•
Knowledge of Git/GitLab, JIRA, and Confluence.
•
Hands-on experience with static code analysis tools (e.g., SonarQube, Fortify, Snyk).
•
Experience working in Agile environments, with exposure to DevOps/DevSecOps practices.
•
Knowledge of cloud platforms (AWS, Azure) and CI/CD pipelines.
•
Experience with Docker and Kubernetes for application deployment and management.
•
Experience designing, developing, and securing RESTful APIs and web services.
•
Strong understanding of application security, performance optimization, and software development best practices.
Certifications
Oracle Certified Java Developer (Associate or Professional) or an equivalent Java certification.
Legal
At Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. Take a look at Diversity, Equality & Inclusion Policy for more information.