Full-Stack Developer -- PHP / Python / JavaScript
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### About the Role

We are looking for an experienced **Full-Stack Developer** to contribute to a major data modernization program, helping migrate critical data from legacy mainframe systems to a modern, open architecture.

### Key Responsibilities

* Develop and maintain **applications, REST APIs and web services**.
* Design and implement data exchange services and integrations between applications.
* Develop application components using **PHP, Python and JavaScript**.
* Contribute to software architecture and technical design.
* Support the integration of data analytics, AI and intelligence-related capabilities.
* Ensure solutions are **secure, scalable, performant and interoperable**.
* Collaborate with development teams to deliver high-quality solutions.
* Contribute to **DevOps/MLOps and CI/CD** activities using GitLab.
* Implement and maintain automated testing where required.

### Requirements

* Strong experience in **PHP and Python development**.
* Good knowledge of **JavaScript**.
* Experience with **REST APIs and web services**.
* Knowledge of software architecture and application security.
* Experience with **GitLab, DevOps/MLOps and CI/CD**.
* Strong problem-solving skills and attention to detail.
* Autonomous, quality-oriented and willing to learn.
* Dutch, French and English proficiency.

### Practical Information

* **Start:** 15 September 2026
* **Duration:** Until 31 December 2026, extendable
* **Workload:** Full-time (40 hours/week)
* **Location:** Brussels
* **Work model:** Hybrid -- minimum 2 days per week onsite