Senior Oracle DB Developer

Médiane Système; Brussel; Sur place; EUR 90 000 - 120 000; Plein temps

Avantages offerts par ce poste

DKV health insurance

Group insurance

Meal vouchers

Eco-vouchers

Mobility package

Résumé du poste

Médiane Benelux is seeking a Senior Oracle DB Developer to work on railway infrastructure data systems and real-time/ batch data flows. You will consolidate information for external and internal stakeholders, contribute to new developments and maintenance, and operate in an Agile environment with CI/CD practices.

The role emphasizes 3NF modeling, Data Vault/Star Schema, SQL/PLSQL optimization, and cross-environment promotion. Strong language skills in Dutch/French and English are required.

Qualifications

• Experience with Oracle databases and real-time data applications.
• Ability to design logical data models and analytics workflows.
• Strong English communication and team collaboration.
• Proven track record in complex data integration projects.
• Familiarity with software development lifecycle and CI/CD practices.

Responsabilités

• Design and validate 3NF data models based on functional analysis.
• Model data using Data Vault or Star Schema approaches.
• Implement models and logic with SQL/PLSQL.
• Ensure code quality and promote across dev/test/prod environments.
• Analyze and optimize application and database performance.
• Lead a small team, delegate tasks, and report progress.

Description du poste

Médiane Benelux: Career Booster!

Since 2017, and with over 35 years of experience in France and Italy, Médiane Benelux is an engineering company specializing in software, electronics, and cybersecurity across key sectors such as Railways, Automotive, Energy, Medical, Aerospace, Space, Telecoms, Industry, and Defense.

What We Offer

• IT consulting and strategy
• Digital transformation and IoT solutions
• Project management and process optimization

As specialists in electronics, development, and embedded systems design, we operate from sensor to cloud.

Why choose Médiane Benelux?

• Human-sized company: Promotes teamwork and collaboration in a dynamic and stimulating environment
• Sharp technical expertise and tailored solutions for each sector
• Talent support: Personalized follow-up, continuous training, and skill development for our employees
• Custom solutions tailored to the specific needs of each client
• Culture of innovation: Participation in innovative and varied projects
• Ecovadis Gold certification: Commitment to equality, well-being, and responsibility
• Human values: Commitment, Respect, Trust, Listening
• "Happy at Work" and "Happy Clients" labels by Choose my Company: A fulfilling work environment and optimal client satisfaction

Job 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.

Profile / Requirements

• 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.

Benefits

• Attractive salary package, additional statutory leave days, mobility package (car or public transport subscription), DKV health insurance, group insurance, meal vouchers, eco-vouchers,