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Medior/Senior Automation Tester – Playwright / Java / Selenium

Resillion • Brussels, Brussels-Capital, Belgium

hybridfull-time
Posted Sep 3, 2026Apply by Oct 3, 2026
  • Role & Seniority

    • Medior/Senior Automation Tester

    • 4+ years professional software testing & test automation experience

    • Contract/Freelance; multiple roles

  • Stack/Tools

    • Playwright, Java, Selenium

    • BDD: Gherkin, Cucumber (or similar), Behaviour-Driven Development

    • Integration/API: REST APIs, event-based/asynchronous communication

    • Tooling/Docs: Xray, Jira, Confluence

    • Web/format: JavaScript, JSON, XML, Angular, HTML

    • Data: relational databases, SQL, test dataset preparation

  • Top 3 Responsibilities

    • Define and drive test automation strategy and test automation architecture

    • Design/implement/maintain automated tests and ensure measurable automation coverage

    • Clarify requirements (functional/non-functional) and report quality/results, including risks/recommendations; coordinate/coaching in Agile/Scrum

  • Must-have Skills

    • Strong test automation leadership (strategy/architecture) and practical automation execution

    • Requirement clarification (functional & non-functional)

    • Test planning/documentation and quality reporting to mixed technical/non-technical stakeholders

    • Agile/Scrum working experience

    • Fluent English plus Dutch or French

    • Can work 2 days/week in Brussels (no sponsorship)

  • Nice-to-haves

    • ISTQB (or other relevant testing certification)

    • Angular/HTML familiarity and experience with event-driven

Full Description

Job Title: Medior/Senior Automation Tester – Playwright / Java / Selenium

Location: Brussels (Hybrid – 2 days a week)

Type of Role: Contract / Freelance (Multiple Roles available)

Availability: Immediate would be beneficial

Language: Must be fluent in English and (Either Dutch or French)

** PLEASE NOTE – WE ARE UNABLE TO OFFER SPONSORSHIP **

** WE CAN ONLY ACCEPT APPLICANTS WHO CAN COMMIT TO 2 DAYS A WEEK IN BRUSSELS **

About Resillion

Resillion is a global provider of digital assurance, cybersecurity, and testing services. We help organisations strengthen their security posture, protect critical assets, and deliver high-quality digital solutions. Our teams operate across multiple specialist disciplines, including Digital Forensics, Incident Response, SOC Operations, Quality & Compliance, and Technical Consultancy. We are committed to excellence, continuous improvement, and delivering trusted, customer-focused services that meet the highest professional and accreditation standards.

Role Overview

We are looking for an experienced Medior/Senior Automation Tester – Playwright / Java / Selenium to take a role in defining, implementing and continuously improving the test automation approach within a complex public-sector environment. The successful candidate will combine strong technical expertise in test automation with experience in test strategy, test architecture, requirements clarification, quality reporting, coordination and coaching. The roles require a minimum of 4 years of demonstrable professional experience in software testing and test automation.

Key Responsibilities

Clarify functional and non-functional requirements in collaboration with analysts, developers and other stakeholders. Define and drive the overall test automation strategy. Establish the appropriate test automation architecture, tools and frameworks. Determine how automated test coverage will be measured, monitored and improved. Design, implement, maintain and execute automated tests. Document and communicate the results of automated testing activities. Prepare structured test plans aligned with the project’s objectives and delivery approach. Assess software quality and report findings, risks and recommendations to developers, analysts, team leads, QA representatives and management. Support the creation and maintenance of reliable test datasets. Test synchronous and asynchronous integrations, including REST APIs and event-based communication. Coordinate testing activities and provide guidance and coaching to other testing professionals. Take ownership of testing-related decisions and act as a driving force for quality within the team. Work effectively within an Agile and Scrum delivery environment.

Required Experience and Competencies

At least 4 plus years of demonstrable experience in software testing and test automation. Proven experience in clarifying functional and non-functional requirements. Strong knowledge of software testing methodologies and recognised testing practices. Experience defining and leading a test automation strategy. Experience designing or contributing to a test automation architecture. Experience measuring and reporting automated test coverage. Strong test planning and test documentation skills. Experience reporting on software quality to both technical and non-technical stakeholders. Demonstrable experience coordinating testing activities, coaching colleagues and taking the lead within a testing environment. Good understanding of Agile and Scrum methodologies. An ISTQB certification or another relevant testing certification is considered an important asset. Must be fluent in English and (Either Dutch or French)

Technical Skills

The candidate should have strong practical knowledge of

Playwright Java Selenium Gherkin Behaviour-Driven Development Cucumber or comparable BDD tools Xray Jira Confluence JavaScript JSON XML Angular HTML REST APIs Event-based and asynchronous communication Relational databases SQL Test data and test dataset preparation

PlaywrightJavaSeleniumGherkinCucumberXrayJiraConfluenceJavaScriptREST APIsSQLAgileScrumTest Automation StrategyTest ArchitectureBDDmulti-location

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