Senior Oracle DB Developer - Data Vault & Performance Expert

Médiane Système limited; Brussel Hoofdstad; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Attractive salary package

Additional statutory leave days

Mobility package

DKV health insurance

Group insurance

Meal vouchers

Eco-vouchers

etc

Job summary

Médiane Benelux is seeking a Senior Oracle DB Developer for a long-term program based in Brussels. You will design, implement and maintain robust data solutions across complex domains and contribute to performance optimisations.

Leverage 5+ years of Oracle/SQL/PLSQL experience with strong data modelling (ERD/3NF, Data Vault, Star Schema) in a collaborative Agile environment to deliver scalable databases and reliable deployments.

Qualifications

• Minimum 5 Years Oracle DB Development Experience.
• Minimum 5 years SQL and PL/SQL development experience.
• Strong relational data modelling skills (ERD, 3NF).
• Experience designing Data Vault and Star Schema architectures.
• Daily practice with GIT as Source Code Manager.
• Practical experience with Scrum / Agile ways of working.
• SQL and PL/SQL performance optimisation.
• Task and issue tracking with Jira.
• General database administration (security, tablespaces, schemas).
• Native level Dutch or French (C2).
• Good level in the other national language (B1).
• Good working level of English (B2).

Responsibilities

• Design and validate relational data models in 3NF based on functional analysis.
• Design and validate data models using Data Vault, Star Schema, or similar approaches.
• Implement data models and business logic in SQL and PL/SQL on Oracle databases.
• Ensure code quality and proper promotion management across environments (dev, test, acc, prod).
• Analyse and optimise database and application performance (SQL and PL/SQL tuning).
• Manage and validate deployment scripts across environments.
• Contribute to peer reviews and maintain up-to-date technical documentation.

Skills

Oracle DB Development

SQL

PL/SQL

ERD

3NF modelling

Data Vault

Star Schema

Git

Jira

Scrum / Agile

Performance Tuning

Database Administration

Tools

Git

Jira

Job description

Médiane Benelux is seeking a Senior Oracle DB Developer for a long-term program based in Brussels. You will design, implement and maintain robust data solutions across complex domains and contribute to performance optimisations.

Leverage 5+ years of Oracle/SQL/PLSQL experience with strong data modelling (ERD/3NF, Data Vault, Star Schema) in a collaborative Agile environment to deliver scalable databases and reliable deployments.