Junior Full Stack Java Developer

Mission Overview

Keystone Solutions is seeking a Junior Full Stack Java (Spring Boot) / Angular Developer for a consultancy mission at a public administration client. This role involves replacing an old business application with a new regulatory management application focused on complete traceability of files from their origin to the final decision. The current application data will be migrated to the new system.

Responsibilities

As a consultant, you will be responsible for:

• Participating in backlog refinement and contributing to functional analysis.
• Designing the data model and application architecture in collaboration with the architect.
• Developing back-end services, back-office screens, integration with the existing online portal, and interfaces with third-party systems.
• Considering security requirements related to the application's external exposure.
• Implementing tests and correcting anomalies.
• Carrying out data migration.
• Deploying on the client's environments.
• Documenting according to the client's standards.
• Participating in agile ceremonies.

Deliverables

You will deliver:

• Tested application increments at each iteration.
• Versioned and documented source code.
• Up-to-date technical and functional documentation.
• Data migration scripts and reports.

Work Environment

This position requires mandatory presence from 9:30 AM to 12:00 PM and from 2:00 PM to 4:00 PM, with an 8-hour workday. A detailed activity plan will be established within 10 calendar days of the start date. The data processed is confidential and includes personal data.

Soft Skills

The ideal candidate will possess:

• Clear communication skills in French with non-technical business users.
• Teamwork abilities with the analyst, Scrum Master, and business stakeholders.
• Autonomy and a sense of responsibility.
• Attention to detail and thorough documentation practices.
• Analytical and synthesis skills.

Evaluation Method

CVs will be analyzed based on the required skills; mandatory skills are eliminatory. Technical interviews will be conducted with shortlisted candidates.

Duration: 01/12/2026 - 30/11/2027 12 months • (full time)

Skills required

• Contribution à l'analyse fonctionnelle avec des utilisateurs métierJunior
• Développement front-end AngularVerplichtJunior
• Développement Java avec Spring BootVerplichtJunior
• Langage SQL et bases de données relationnellesVerplichtJunior
• Méthodes agiles (Scrum)Junior
• Services web (REST)Junior
• Tests unitairesJunior

Language requirements

• Frans (mandatory)Proficiency (C2)