Junior Front End Developer

Keystone Solutions

Brussel

Hybride

EUR 35 000 - 55 000

Plein temps

Il y a 3 heures

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Avantages offerts par ce poste

Hybrid work environment

Résumé du poste

Keystone Solutions is seeking a Junior Front-End Developer for a consultancy mission at a client site in Belgium. You will lead the Angular migration to version 22, ensure regression tests, and document changes to minimize risk. Collaboration with Java/Spring environments is expected.

Requirements include at least 3 years in Java development, working in multi-system contexts, and strong Agile/Scrum experience. Hybrid work with on-site presence may be required during the mission.

Qualifications

Minimum 3 years of professional Java software development experience.
Experience in complex multi-system environments and migration projects.
Strong frontend and backend integration skills with REST APIs.

Responsabilités

Perform the migration to newer Angular version (V22).
Conduct regression testing and document changes.
Communicate changes to key users and manage regression risk.

Connaissances

Angular 22

Java 21+

Spring Framework

JPA / Hibernate

RESTful Web Services

OpenAPI / Swagger

CI/CD (GitLab)

Docker

Kubernetes

JUnit / Mockito

NPM

OAuth 2.0

Agile / Scrum

Outils

OpenShift

GitLab CI/CD

Jira

Confluence

Description du poste

Mission Overview

Keystone Solutions is seeking a Junior Front-End Developer for a consultancy mission at a client site. The client maintains several applications developed in Java and Angular for a governmental organization. The current Angular version (V.15) needs to be urgently migrated to a more recent version (target V.22). The developer will be responsible for ensuring this technical migration, as well as the associated regression testing, which will be developed during the migration based on the modifications made to each application. Special attention will be given to documenting these changes to effectively manage the regression risk following this migration, along with communication to the relevant key users.

Responsibilities

Perform the migration
Conduct testing, including regression testing
Document changes

Experience

Minimum 3 years of professional experience in Java software development. Experience working in complex multi-system environments.

Competencies

Technical knowledge and practical experience of the following technologies:

Angular 22
Java >= 21 and Spring Framework (Core, JDBC, Data, Security, AOP)
JPA / Hibernate
RESTful Web Services
OpenAPI / Swagger
SOA, Backend-for-Frontend, CQRS
Test-driven development (JUnit, Mockito, Spring Test, Cypress)
Maven
Docker
OpenShift / Kubernetes
Git and GitLab CI/CD
SonarQube
NPM
OAuth 2.0
Jira and Confluence
Agile/Scrum methodologies
Continuous Integration and Continuous Delivery (CI/CD)

Soft Skills

Strong analytical and problem-solving skills.
Ability to quickly understand and maintain existing codebases.
Customer and solution-oriented mindset.
Team player with strong communication skills.
Autonomous, proactive, and quality-focused.

Mission & Working Conditions

The mission is carried out within a hybrid working environment. Regular presence on site may be required.

Why Join Keystone Solutions

As a consultant at Keystone Solutions, you will engage in dynamic projects that offer a variety of challenges across different client environments. You will benefit from turbo-charged learning opportunities that enhance your professional development and broaden your skill set. We are committed to your career growth within our framework, and being a 'K-Stone' means bringing our core values to every engagement.

Duration

As soon as possible - 31/12/2026 4 months