For a client in Namur, we are looking for a Web Front End Expert.

Start date: As soon as possible
End date: 30/12/2025
Workplace: Namur – hybrid
Languages required: French + English

Required experience:
More than 10 years of proven experience in front-end web development, with expertise in React, Symfony, API Platform and real-time.

Your role:
As part of the ongoing optimization of our web platform, you will be responsible for:
Accompany a team of developers.
Optimize front-end (React/Typescript) and back-end (PHP/Symfony/API Platform) performance.
Optimize the resources used in real time (memory, CPU, first load).
Implement front quality standards (nomenclature, error management, etc.).
Redesign of the architecture and structure of the React/Typescript code, in alignment with modern development best practices.
Gradual replacement of legacy code (Bootstrap, JavaScript, old React database).
Implementation of a real Front-End framework: project agreements, quality standards, modular and scalable code organization.
Structuring and securing APIs with API Platform.
Punctual technical supervision of developers (code reviews, testing, etc.).
Technology watch and proposal for continuous improvements on the stack.

Technical environment:
Back-end: PHP 8+, Symfony 6 (LTS), API Platform, Mercure, MariaDB, Istio, ELK, Azure, NodeJS
Front-end: Typescript, JS Framework (React/mui)
Queuing: Rabbitmq
Testing: Playwright (E2E), PHPUnit, JEST
Database: MariaDB
Cache: Redis
CI/CD: Azure DevOps / Docker / versioning Git/ K8s
Monitoring: APM Kibana, Grafana, PMM, RUM Kibana, Loki, opentelemetry
Ongoing migration: React/ Typescript/ API Platform

Profile sought:
Confirmed experience as a web integrator.
Very good mastery of real time and related scalability issues.
Advanced knowledge of the modern front in Typescript.
Engineer’s spirit e, rigor, sense of optimization.
Ease in software architecture and application performance.
Good communication skills and technical writing.
Ease in source code management (git, ticketing, ...).
Appreciated bonuses:
DevOps experience (Docker, CI/CD).
Front and back application monitoring.
Web security knowledge (Auth/JWT).
Performance/ validation tools.