Overview

Application Tester Jobs in Brussels, Brussels Region, Belgium at Keystone Solutions

Title: Application Tester

Company: Keystone Solutions

Location: Brussels, Brussels Region, Belgium

Mission Overview:

Join Keystone Solutions as a consultant for a mission with one of our clients to support a digital transformation project aimed at improving the management and planning of anti-doping controls. As a Keystone Solutions consultant, you will operate within a public-sector environment, contributing to the design, development, maintenance, and evolution of information systems and technological infrastructures serving administrations and institutions. You will collaborate closely with client stakeholders across areas such as IT infrastructure management (networks, security, data centers, cloud), bespoke business application development, digital project support (functional analysis, UX/UI, project management), cybersecurity and data protection, as well as user support and training.

Consultancy Model and Advantages:

  • Consultancy nature of work: You will be a Keystone Solutions consultant working on-site at the client location (hybrid model with minimum 50% on site) and remotely as needed, embedding with client teams while receiving Keystone’s ongoing backing.
  • Dynamic projects: Engage with diverse challenges within the client’s digital ecosystem, contributing to real-world, high-impact public-sector initiatives and potentially evolving to further client projects.
  • Turbo-charged learning and development: Benefit from Keystone Solutions’ professional development support, knowledge-sharing, and coaching to broaden your testing expertise (functional, tooling, environments, and best practices).
  • Ambition skyrocketing within a consultancy framework: Build your career through varied client engagements, expanding your responsibilities and exposure while bringing Keystone’s standards of excellence to every mission.
  • Values-driven consulting: As a K-Stone, you embody rigor, collaboration, and service excellence—bringing proactive problem-solving, clarity in communication, and a user-centric mindset to each client engagement.

Role Purpose:

The client seeks a confirmed tester within the DOPING-ONE project to improve the management and planning of anti-doping controls. You will perform all responsibilities below as a Keystone Solutions consultant, working closely with client teams (business, functional, and development).

Technical Competencies (All to be performed as a Keystone Solutions consultant):

  • Mastery of manual functional testing techniques (regression, exploratory, etc.)
    • Identify and write test cases based on functional and non-functional requirements
    • Prepare test execution (including preparation of initial conditions: test data, etc.)
    • Execute these test cases manually
    • Analyze and document test results, record bugs, defects, and other issues
    • Classify bugs, follow bug resolution, and provide reporting on bugs
    • Provide support in resolving identified errors in collaboration with various teams (business, functional, and development)
    • Validate fixes with the business and communicate results
    • Write test reports and test minutes
    • Supervise and lead the collaborators required for the proper execution of testing tasks
  • Solid knowledge of Agile principles (Scrum, Kanban)
  • Mandatory experience with the following tools:
    • Defect management: Mantis
    • Test management: Xqual
    • Automation with Agilitest
  • Basic understanding of test environments and deployment processes with GitLab & Docker
  • Familiarity with databases and SQL queries

Personal Qualities:

  • Proactivity: Ability to identify problems before they occur and propose solutions
  • Rigor: Attention to detail and adherence to testing methodologies
  • Communication: Excellent ability to document defects and communicate results
  • Collaboration: Smooth and constructive teamwork in an agile environment
  • Curiosity: Interest in understanding the product and business needs

Engagement Model and Work Setup:

  • Hybrid assignment with a minimum of 50% on-site presence.
  • Primary work location: Boulevard du Roi Albert II, 37 – 1030 Brussels.

Role and Skills Snapshot:

  • Role: Confirmed Application Tester (most recent experience: this year)
  • Agile: Level Confirmed (most recent experience: this year)
  • Agilitest: Level Junior (most recent experience: any time)
  • Test case analysis and design: Level Confirmed (most recent experience: this year)
  • DB2: Nice to have (most recent experience: any time)
  • Defect detection and management: Level Confirmed (most recent experience: this year)
  • Docker: Nice to have (most recent experience: this year)
  • Test case implementation and execution: Level Confirmed (most recent experience: this year)
  • Mantis: Level Confirmed (most recent experience: this year)
  • Ready API: Nice to have (most recent experience: any time)
  • Xqual: Level Junior (most recent experience: any time)

Language Requirements:

  • French: Native

Application Questions:

  • Do you have ISTQB certifications? If yes, please attach them to your application.
  • Do you use AI in the context of your testing activities? If yes, which ones and in what contexts?

Why Join Keystone Solutions as a Consultant:

  • Operate at the intersection of public service and technology, supported by Keystone’s proven consulting practices.
  • Leverage Keystone’s community of experts and structured coaching to refine your testing craft across tools like Mantis, Xqual, Agilitest, GitLab, Docker, and SQL.
  • Accelerate your impact by bringing proactive, rigorous, and collaborative strengths to high-visibility client missions.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.

Mission Overview:

Join Keystone Solutions as a Confirmed Application Tester for a consultancy mission with our client, a central public-sector organization driving digital transformation across Belgian public services. As a Keystone Solutions consultant, you will embed with the client’s agile teams to strengthen quality assurance for an initiative improving the management and planning of anti-doping controls. This mission is hybrid, with a minimum of 50% on-site presence in the Brussels area.

Consultancy Nature of Work:

In this role, you will operate under Keystone Solutions’ consultancy model, working closely with the client’s stakeholders on-site and remotely. You will integrate into cross-functional squads (business, functional analysis, development) to deliver tangible outcomes while benefiting from Keystone’s coaching, peer support, and proven consulting practices. You will perform all responsibilities below as a Keystone Solutions consultant dedicated to the client’s objectives.

Dynamic Projects:

Beyond this mission, Keystone Solutions consultants have opportunities to tackle diverse challenges across client environments. The current client is deeply involved in public-sector digital transformation, spanning:

  • IT infrastructure management (networks, security, data centers, cloud),
  • Custom business application development,
  • Digital project enablement (functional analysis, UX/UI, project management),
  • Cybersecurity and data protection,
  • User support and training.

Turbo-Charged Learning and Development:

  • Accelerated learning through varied client contexts and complex problem spaces.
  • Access to expert peers, knowledge-sharing rituals, and mentoring from seasoned consultants.
  • Support for professional upskilling (e.g., test engineering best practices, certifications such as ISTQB, and modern QA tooling).

Ambition Skyrocketing within a Consultancy Framework:

  • Grow your impact across engagements, from hands-on testing to quality leadership.
  • Gain exposure to test automation practices and quality strategy in agile delivery environments.
  • Build a recognized consultant profile by delivering measurable value on client projects.

Key Responsibilities (performed as a Keystone Solutions consultant):

  • Mastery of manual functional testing techniques (regression, exploratory, etc.):
    • Identify and write test cases based on functional and non-functional requirements.
    • Prepare the execution of test cases (including preparation of initial conditions: test data, etc.).
    • Execute these test cases manually.
    • Analyze and document test results, record bugs, defects, and other issues.
    • Classify bugs, track their resolution, and provide bug reporting.
    • Provide support in resolving identified errors in collaboration with various teams (business, functional, and development).
    • Validate corrections with business stakeholders and communicate results.
    • Write test reports and formal test minutes.
    • Supervise and lead collaborators required for the successful completion of testing tasks.

Required Technical Skills:

  • Solid knowledge of Agile principles (Scrum, Kanban).
  • Mandatory experience with the following tools:
    • Defect management: Mantis,
    • Test management: Xqual,
    • Automation with Agilitest.
  • Basic understanding of test environments and deployment processes with GitLab and Docker.
  • Familiarity with databases and SQL queries.

Personal Qualities:

  • Proactivity: Ability to identify problems before they occur and propose solutions.
  • Rigor: Attention to detail and adherence to testing methodologies.
  • Communication: Excellent ability to document defects and communicate results.
  • Collaboration: Smooth and constructive teamwork in an agile environment.
  • Curiosity: Interest in understanding the product and business needs.

Additional Nice-to-Have Skills:

  • Experience with DB2.
  • Experience with ReadyAPI.
  • Broader hands-on experience with Docker beyond basic understanding.

Working Model and Location:

  • Consultancy mission with hybrid work; a minimum of 50% on-site presence is required at the client’s premises in the Brussels area.

Language Requirements:

  • Fluent in French (native or near-native) to collaborate effectively with client stakeholders.

Keystone Solutions Values in Action:

At Keystone Solutions, our consultants (“K-Stones”) bring integrity, accountability, craftsmanship, and a relentless focus on client impact to every engagement. You will embody these values on-site with the client, ensuring quality outcomes, respectful collaboration, and continuous improvement throughout the delivery lifecycle.

Application Questions:

  • Do you hold any ISTQB certifications? If yes, please indicate them and attach proof with your application.
  • Do you use AI in your testing activities? If yes, which tools and in what contexts?

How to Apply:

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.

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