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# Senior Oracle DB Developer

- **Company:** Médiane Benelux
- **Location:** Brussel, Belgium
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Third Normal Form, Agile Methodology, Business Logic, JIRA, Big Data, Software Quality, Databases, Continuous Integration, Data Vault Modeling, Oracle (Applications), Scrum Methodology, Query Optimization, PL-SQL, SQL Databases, Database Performance, Git, Star Schema, Software Version Control, Oracledb
- **Published:** July 16, 2026
- **Apply:** https://www.adzuna.be/details/5801919904

## About the Role

Oracle DB Development: 10+ years
Oracle 19C Development: 2+ years
Relational Modeling (ERD, 3NF): 10+ years
Database Architecture (Data Vault, Star Schema): 10+ years
SQL & PL/SQL Development: 10+ years
GIT (Source Code Management): 5+ years
Scrum/Agile Methodology: 5+ years
SQL & PL/SQL Query Optimization: 5+ years
Jira Usage: 5+ years
Peer Reviewing: 5+ years
Solution Documentation: 5+ years
Team Management (minimum 3 people): 5+ years
Script Management across environments (dev, test, acc, prod): 5+ years
Database Administration (security, tablespace, schema): 2+ years
Languages: Dutch or French C2, second national language A2, English B2

Soft Skills
Knowledge of railway operations and IT domain; understanding of role challenges.
Ability to integrate into teams while demonstrating values: kindness, courage, positivity, reliability.
Professional attitude and respect for management.
Clear and effective communication skills.
Presentation skills.
Responsible engagement and commitment for the duration of the contract.

## Description

As a Senior Oracle DB Developer, you will work on challenging projects critical to the continuity and performance of a leading railway infrastructure operator. These projects involve consolidating and distributing information related to railway traffic management-covering pre-processing, real-time, post-processing, and back-office operations-to both external (railway companies, foreign infrastructure managers, European platforms) and internal stakeholders (real-time schedule visualization, billing, energy consumption calculation, Big Data systems).

You will contribute to both new developments and maintenance (corrective and evolutionary) of existing applications. Agile software development, source control, continuous integration, and modern development hardware are central to the work environment.

Scope of Work
Design and validate 3NF data models based on functional analysis.
Design and validate data models using Data Vault, Star Schema, or other modeling approaches.
Implement data models and business logic using SQL and PL/SQL.
Ensure code quality and manage promotion across environments (dev, test, acc, prod).
Analyze and optimize application and database performance.
Lead a small team: delegate tasks, discuss approaches, and report progress to technical teams, project leader, and team leader.


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