Senior Test Specialist

Senior Test Specialist - 10 Months - Antwerp Belgium

At RELYzIT, we don't recruit — we build.

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About the Role

RELYzIT Talent is seeking a Senior Test Specialist for a freelance engagement with our client in Antwerp, Belgium. As a key member of the FOCUS team within the Intelligence & Innovation directorate, you will play a pivotal role in ensuring the quality and reliability of mission-critical applications that directly impact public safety and operational excellence. This is your opportunity to shape the future of digital policing by driving robust testing practices in a socially vital environment.

Why This Role Matters

Our client’s digital transformation is at the heart of safeguarding communities and enabling smarter, faster, and more secure operations. As a Senior Test Specialist, your expertise will ensure that every release meets the highest standards of quality, reliability, and compliance. Your work will directly influence the success of high-impact projects, supporting innovation and operational continuity in a sector where quality is non-negotiable.

What You’ll Be Doing

• Designing, preparing, and executing comprehensive test scenarios for large-scale, mission-critical applications.


• Leading functional and regression testing to validate new features, changes, and releases.


• Monitoring and reporting on the quality of software releases, ensuring alignment with business and technical requirements.


• Collaborating closely with analysts, developers, and business stakeholders to drive a structured, professional testing approach.


• Utilizing formal testing methods and advanced automation tools to maximize efficiency and coverage.


• Proactively identifying risks, issues, and opportunities for improvement within the testing lifecycle.


• Managing and configuring test environments, including handling complex configurations via nested JSON files and translation management.


• Contributing to the continuous improvement of testing processes and methodologies, leveraging AI and automation where possible.


• Ensuring compliance with all project documentation, including IT code and NDA requirements.

What We’re Looking For

• Proven experience as a test specialist working on large, mission-critical applications (senior level).


• Deep knowledge of formal testing methods, techniques, and specialized testing suites or tools.


• Hands-on experience with test automation frameworks and tools.


• Strong ownership mindset, proactive initiative, and the ability to work independently in a quality-driven, socially critical environment.


• Excellent problem-solving skills and a passion for delivering impactful, reliable solutions.


• Ability to collaborate effectively with multidisciplinary teams and communicate complex concepts clearly.

Technical Skills & Tools

• Test Automation (required)


• Atlassian Stack (Jira/Confluence)


• Cypress


• Ranorex


• X-ray


• Functional configuration via multiple nested JSON files


• Managing translations via configuration files


• Inheritance of code and building queries


• AI for Test Design and/or Test Automation


• Strong knowledge of C#


• Functional testing expertise


• Specialized testing suites or tools

Language Proficiency

• Fluent Dutch speaker at European CEFR level C2 (required)

Other Requirements

• IT code AG Digipolis Antwerp (to be signed)


• NDA AG Digipolis Antwerp (to be signed)


• Ability to provide a comprehensive CV and complete required attachments as part of the application process


• Willingness to work within the framework agreement terms, including assignment extensions and notice periods as specified

Project Details

• This is a freelance position with an initial duration of 10 months, based in Antwerp, Belgium.


• Assignment duration may be extended by mutual agreement in 12-month periods, within the framework agreement.


• Price adjustments are only permitted via indexation after each 12-month period.


• Both parties may terminate the agreement with one month’s notice by registered letter.

About RELYzIT Talent

RELYzIT Talent is where elite builders come together to drive impact and innovation. We are not recruiters — we are a community of creators, engineers, and architects, united by a passion for building the future. Our VECTOR7™ Signal Stack ensures that every talent is rigorously vetted, so you evaluate once and carry that credential for life. Join us and be part of a movement where your expertise shapes tomorrow’s solutions.