Hybrid PL/SQL Developer — Oracle DB Modernisation

Koda Tech; Brussel Hoofdstad; Hybrid; EUR 83,000 - 138,000; Full time

Job summary

Koda Tech is seeking an experienced Freelance PL/SQL Developer to join a major IT transformation programme in Brussels. Hybrid, long-term contract, ASAP start. You will develop and optimise PL/SQL code, work with Oracle databases, and support data migration and integration efforts.

The role emphasizes large datasets, performance tuning, Python automation, and collaboration with DBAs, developers and stakeholders to modernise legacy applications.

Qualifications

• Strong commercial development experience with Oracle PL/SQL.
• Exellent knowledge of SQL and relational databases.
• Hands-on experience with Oracle Database environments.
• Good development/scripting experience with Python.
• Experience with database performance tuning and query optimisation.
• Understanding of data migration, ETL and system integration.
• Experience working with complex or business-critical applications.
• Previous experience within transformation/migration programme desirable.
• START DATE: ASAP
• CONTRACT: Freelance
• LOCATION: Brussels
• HOURS PER WEEK: Full time
• LANGUAGES: English and French or Dutch
• INTERVIEW PROCESS: One stage

Responsibilities

• Develop, enhance and maintain complex PL/SQL code, including stored procedures, packages, functions and triggers.
• Work extensively with Oracle databases, supporting database development, data processing and application integration.
• Analyse and optimise SQL/PL/SQL queries to improve database and application performance.
• Develop Python scripts for automation, data processing, validation and integration activities.
• Support the transformation of legacy database applications and processes into more modern, scalable solutions.
• Work with large datasets, including data extraction, transformation, cleansing and migration.
• Troubleshoot complex database, application and performance issues.
• Support system integrations and data flows between Oracle and surrounding applications.
• Work closely with developers, DBAs, architects and business stakeholders throughout the transformation programme.

Skills

Oracle PL/SQL

SQL

Python

Performance tuning

ETL/data migration

Tools

Oracle Database

Job description

Koda Tech is seeking an experienced Freelance PL/SQL Developer to join a major IT transformation programme in Brussels. Hybrid, long-term contract, ASAP start. You will develop and optimise PL/SQL code, work with Oracle databases, and support data migration and integration efforts.

The role emphasizes large datasets, performance tuning, Python automation, and collaboration with DBAs, developers and stakeholders to modernise legacy applications.