Freelance Senior Test Analyst

adesso Belgium, who are we? We are an IT (start-up) provider working under the adesso umbrella with proven track record in different industries. The new Belgian entity of adesso is part of the expansion and growth strategy of the adesso group. With more than 10.000 employees spread over 60 locations we are entering an exciting period with our presence in Brussels, the capital of Europe.

Your role

As a Senior Test Analyst, you will play a pivotal role in ensuring software quality across complex IT projects.

Your responsibilities:

• Analyze functional requirements, identify risks, and translate these into structured test scenarios and cases aligned with project objectives and resources.
• Define a test approach in line with the overall test strategy, collaborating closely with other senior test analysts and project stakeholders.
• Ensure milestones are met and test cases are well-prioritized and robust.
• Actively participate in both preparation and execution phases: validate software quality, perform manual and automated testing at various levels, analyze CI/CD results, and functionally review deliverables to assess test coverage and product quality.
• Track deviations, identify inefficiencies, and propose improvements.
• Communicate test results and recommendations clearly and transparently to stakeholders and test coordinators.
• Maintain accurate test documentation, process descriptions, and use cases.
• Serve as a bridge between business, technical teams, and users—advocating for the value of test cases, aligning with other tribes, and influencing requirements quality through static reviews.
• Coach, guide, and support junior testers within the project or tribe, fostering quality, knowledge sharing, and continuous process improvement.

Required Experience

Hard skills:

• Minimum 7 years’ experience in a similar role.
• In-depth knowledge of test methodologies, tasks, and processes; ISTQB Foundation or Advanced certification is a plus.
• Experience with test management tools (e.g., Testlink, Zephyr).
• Experience with issue & project management tools (e.g., Jira).
• Familiarity with collaboration tools (e.g., Confluence).
• Experience with test automation tools (e.g., Cypress, JUnit5).
• Basic understanding of development practices & test paradigms such as CI and TDD.
• Basic knowledge of UML, Java, SQL, and version control (git/svn)

Soft skills:

• Strong relational and communication skills to engage stakeholders and translate technical findings.
• Ability to coach and mentor junior testers.
• Analytical thinking and problem-solving abilities.
• Collaborative mindset to work effectively with both technical and business teams.
• Dutch and/or French native speaker, fluent in English (both written and spoken).

Why join adesso Belgium?

• Work in an international group with strong local expertise in Belgium.
• Collaborate with cross-functional teams to deliver trusted, compliant, reusable data products.
• Flexible freelance setup with the support of a growing adesso Belgium community.

More info about Adesso-group & Press release