Altia
Full-stack International Projects
Skills
6 days ago
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Important information
Contract type:
Permanent
Location:
Brussels, Belgium
Work mode:
Remote
Published on:
15 October 2026
What they need
Hello everyone! 👋
We are currently looking for a Senior Full-stack Software Engineer to join our team.
🤗 About us
We are an IT Consulting Group providing innovative digital solutions across Europe.
Learn more: www.altiacompany.com/en
🚀 The project
Join an international project focused on the development, maintenance and optimisation of secure, scalable enterprise applications for a major European organisation.
You will contribute to the design and development of front-end and back-end solutions, working with Java, Spring Boot, Jakarta EE and Java Server Faces (JSF). The role involves API development and integration, database optimisation, security implementation, automated testing, CI/CD pipelines and containerised deployments.
📌 Requirements
- University degree equivalent to EQF Level 7 (typically a Master's degree or five years of higher education) and a minimum of 15 years of professional IT experience.
- English or French B2 or higher, both written and spoken.
- Ability to onboard quickly, work autonomously and collaboratively, participate effectively in meetings and deliver results.
- Strong knowledge of JavaScript, HTML and CSS.
- Experience with Java Server Faces (JSF).
- Strong experience with Java, Jakarta EE, Spring Boot, JPA and Hibernate.
- Experience designing and developing scalable applications, business logic and REST APIs.
- Knowledge of integration between front-end, back-end and external systems.
- Experience with relational database schema design and query optimisation, preferably Oracle and PostgreSQL.
- Knowledge of NoSQL databases and key-value stores, preferably Redis.
- Experience with database components, data models and migration scripts.
- Knowledge of asynchronous processing and messaging with Kafka.
- Experience designing, developing and securing REST APIs and web services, including OpenAPI/Swagger.
- Strong knowledge of authentication and authorisation protocols: OAuth 2.0, OpenID Connect, JWT and fine-grained authorisation models.
- Experience with unit and integration testing using JUnit.
- Knowledge of automated code review and quality tools such as SonarQube.
- Experience with Git/GitLab, CI/CD pipelines, Docker and Kubernetes.
- Knowledge of security and cloud best practices, including input validation, secure storage, logging, monitoring and observability.
- Experience with debugging, incident resolution and technical documentation.
- Experience with Jira for work management and team collaboration.
- Strong communication, problem-solving and teamwork skills.
⭐ What we offer
International and multicultural environment.
Opportunity to work with a major European organisation.
Challenging projects involving modern Java technologies, secure architectures and cloud environments.
Career growth opportunities.
This job offer has been drafted with impartiality and non-discrimination on the basis of gender, race, ideology or any other grounds in mind. In particular, it complies with current regulations on gender equality between women and men (Royal Decree-Law 6/2019).
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