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# Senior PowerBuilder Developer

- **Company:** Oliver James Associates
- **Location:** Brussel, Belgium
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** Java (Programming Language), Artificial Intelligence, Component-Based Software Engineering, Business Logic, Static Program Analysis, Data Stores, Relational Databases, Embedded SQL, JSON, PowerBuilder, Query Optimization, Standard Sql, SQL Stored Procedures, SQL Databases, Spring-boot, AngularJS, Restful APIs, Microservices
- **Published:** October 29, 2026
- **Apply:** https://www.vdab.be/vindeenjob/vacatures/74933946

## About the Role

* At least 5 years of hands-on PowerBuilder development, with strong expertise in the PowerBuilder 8-2022 / Appeon environment.
 * Advanced PowerScript and PFC knowledge: events, functions, structures, transaction handling (SQLCA, COMMIT, ROLLBACK), complex DataWindows (Composite, Group, Nested), expressions (Describe, Modify, Evaluate) and DataStores.
 * Strong relational database and SQL skills, including transactional SQL, PL/SQL stored procedures and query optimisation.
 * Understanding of stateless REST APIs, microservices, Spring Boot, Angular and JSON DTOs. Practical Java/Spring Boot and/or Angular experience, or a strong aptitude and willingness to develop these skills.
 * An analytical approach, clear documentation for non-PowerBuilder developers and confident communication with business stakeholders, management and technical teams.
 * French or Dutch, together with professional fluency in English.

Why consider this role

A hands-on technical lead opportunity combining production continuity, knowledge sharing and modernisation. Contribute to team development while building on your PowerBuilder expertise and expanding your involvement in Java and Angular.

## Description

Help shape the next chapter of a business-critical application. You will combine hands-on PowerBuilder development and production support with technical leadership, preparing an established client/server platform for a progressive transition to Java and Angular.

The role connects existing application knowledge with future development: understanding how the system works, making its business rules explicit and helping developers carry them into the new platform.

Your responsibilities

 * Resolve complex PowerBuilder issues and share production maintenance duties, following agreed support and documentation practices.
 * Analyse application components and dependencies, including PBLs, PowerScript, PFC, DataWindows and DataStores.
 * Identify business rules, edge cases and redundant behaviour; separate functional requirements from interface logic and historical workarounds.
 * Decouple business logic from GUI controls and database access, including embedded SQL, dynamic SQL and stored procedures.
 * Work with analysts and business specialists to translate existing behaviour into clear functional and technical specifications.
 * Collaborate with Java/Angular developers on REST API contracts and validate regression coverage through characterisation and Golden Master tests.
 * Build shared technical documentation, mentor colleagues and use static analysis and AI-assisted tools to maintain traceability between code and specifications.