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Senior Application Developer Job ID JP054585
Job Location:
Monthly Salary:
Posted:
25 June 2026 (30+ days ago)
Posted:
Application Deadline:
22 September 2026
Application Deadline:
Vacancies:
1 Vacancy
Vacancies:
Job Summary
Senior Application Developer
Location: Brussels (Hybrid minimum 2 days onsite per week)
Contract Type: Application Maintenance & Development
Role Overview
We are looking for a Senior Application Developer to support maintain and enhance a portfolio of legacy and business-critical applications developed in PowerBuilder and SQL environments. The role focuses on ensuring application stability security performance and long-term sustainability while contributing to modernization initiatives.
Key Responsibilities
- Maintain and support legacy applications primarily developed in PowerBuilder.
- Perform corrective and preventive maintenance activities.
- Analyze troubleshoot and resolve production incidents.
- Develop functional enhancements and technical improvements.
- Conduct technical analysis and identify application risks.
- Optimize application performance and reliability.
- Support migration modernization and decommissioning initiatives.
- Collaborate closely with functional analysts and technical teams.
- Ensure compliance with development standards methodologies and best practices.
- Participate in change management and continuous improvement activities.
Required Skills & Experience
- Expert knowledge of PowerBuilder (versions 12 to 19 including PB2019).
- Strong expertise in .NET development.
- Minimum 10 years of SQL/PL-SQL experience.
- Experience with Windows Services SAP SQLCA and distributed service architectures.
- Strong troubleshooting debugging and performance optimization skills.
- Experience managing and supporting legacy enterprise applications.
- Ability to work independently while collaborating effectively with multidisciplinary teams.
Preferred Experience
- Public sector projects and environments.
- Financial management solutions for local authorities.
- Property or rental management applications.
- Mass mailing and communication management systems.
- Application migration and decommissioning projects.
- Change management initiatives and organizational transformation projects.
Languages
- French: Native/Bilingual
- English: Professional Working Proficiency
- Dutch: Basic Knowledge
Ideal Candidate
A senior technical expert with extensive PowerBuilder and SQL experience who can maintain critical legacy applications drive continuous improvements support modernization efforts and work effectively within a hybrid public-sector environment.
