Job Description
Environment:
Join a leading organization focused on enhancing mobility and sustainable public transport through cutting-edge digital solutions. You will contribute to the development and continuous improvement of a real-time web platform that supports thousands of vehicles and operational services.
Role Overview:
We are seeking an Expert Web Front-End Developer to support and guide a development team in improving code quality, front-end performance, and implementing best practices with modern technologies, including real-time communication (Mercure), RESTful APIs, and automated testing.
Key Responsibilities:
* Mentor and accompany a team of developers
* Optimize front-end performance (React / TypeScript) and support back-end optimization (PHP / Symfony / API Platform)
* Improve resource management for real-time data (memory, CPU, initial loading)
* Define and enforce front-end coding standards (naming conventions, error handling, etc.)
* Refactor React/TypeScript architecture aligning with modern development best practices
* Gradually replace legacy code (Bootstrap, JavaScript, older React code)
* Establish a scalable, modular front-end codebase with clear project conventions
* Secure and structure APIs using API Platform
* Provide technical leadership through code reviews and testing support
* Conduct continuous technological watch and propose improvements to the tech stack
Technical Environment:
* Back-end: PHP 8+, Symfony 6 (LTS), API Platform, Mercure, MariaDB, Istio, ELK stack, Azure, Node.js
* Front-end: TypeScript, React (with MUI)
* Messaging: RabbitMQ
* Testing: Playwright (E2E), PHPUnit, Jest
* Database: MariaDB
* Cache: Redis
* CI/CD: Azure DevOps, Docker, Git version control, Kubernetes
* Monitoring: APM Kibana, Grafana, PMM, RUM Kibana, Loki, OpenTelemetry
* Migration underway to React / TypeScript / API Platform
Candidate Profile:
* Proven experience as a web integrator and front-end developer (10+ years)
* Expert-level skills in React, Symfony, API Platform, and real-time technologies
* Deep understanding of front-end performance optimization and scalability challenges
* Strong software architecture and code quality focus
* Excellent communication and technical writing skills
* Comfortable with source control and ticketing tools (Git, Jira, etc.)
Requirements
Candidate Profile:
* Proven experience as a web integrator and front-end developer (10+ years)
* Expert-level skills in React, Symfony, API Platform, and real-time technologies
* Deep understanding of front-end performance optimization and scalability challenges
* Strong software architecture and code quality focus
* Excellent communication and technical writing skills
* Comfortable with source control and ticketing tools (Git, Jira, etc.)
Bonus Skills:
* DevOps experience (Docker, CI/CD pipelines)
* Application monitoring (front and back-end)
* Web security knowledge (Auth, JWT)
* Performance and validation tools#
Languages:
* Dutch or French (Native)
* English (Nice to have)
Benefits
Why Join Us:
* Work on a technically ambitious, high-impact real-time application
* Agile working environment with autonomy and team spirit
* Modern, well-equipped technology stack
* Flexible and supportive work environment
Location:
Hybrid work model, main office in Namur area
Requirements
Vereisten Kennis van: Overheidsopdrachten — Middenniveau (ervaring mag van eender wanneer zijn) Office-vaardigheden: Gevorderd niveau (ervaring dit jaar opgedaan) Talen: Nederlands: moedertaal of tweetalige beheersing Frans: basiskennis