For a client in Brussels, we are currently looking for a Senior Manual Tester.

Start date: 01/06/2026
End date: 31/12/2027 (19 months)

Work regime: Full-time (2 days onsite)

Languages: Dutch/French + English

Project Description

The FIRST 2.0 program is a major modernization initiative aimed at transforming a legacy monolithic application into a modern microservices architecture running on Kubernetes. The program follows an API-first and event-driven approach, progressively replacing the legacy platform.

This is a business transformation program that develops new functionalities, improves agility, and accelerates the delivery of value to end users. By building a more flexible digital platform, the program supports better services and an enhanced user experience.

Responsibilities

• Clarify functional and non-functional requirements.
• Accurately document the results of manual testing.
• Apply testing methodologies and industry standards such as ISTQB.
• Perform exploratory testing and identify edge cases.
• Validate functionalities from the end-user perspective.
• Clearly communicate software quality to stakeholders.
• Contribute to the continuous improvement of products.

Required Skills

• 10 years of experience as an Application Tester.
• Experience with Agile, BDD, and coaching in testing.
• Knowledge of Confluence and message-queuing systems (ActiveMQ, RabbitMQ, etc.).
• Skills in Gherkin, Jira, and programming logic.
• Experience in preparing test plans, creating test cases, and documenting defects.
• Experience with Scrum and API testing (Postman, SoapUI, OpenAPI, JSON, etc.).
• Experience using Xray tools.

Desired Skills

• 0 to 2 years of experience with Selenium and Playwright.

Questions for Candidates

• Do you have experience clarifying functional and non-functional requirements and documenting manual testing results?
• Are you familiar with testing methodologies and certifications such as ISTQB or equivalent?
• Do you have experience with exploratory testing, critical thinking, edge case detection, and testing from the end-user perspective?
• Do you have the ability to clearly communicate and report software quality to different stakeholders?