Penetration Tester
Uni Systems· International BU
About this role
At UniSystems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Penetration Tester to join our UniQue team in Brussels!
What will you be doing in this role:
- Lead and/or participate in Red/Blue Team exercises.
- Perform web, infrastructure, and application-level penetration testing.
- Conduct security design reviews to ensure compliance with applicable security policies and directives.
- Provide security consultancy and advice to projects, programmes, and other organizational entities.
- Build and maintain effective communication with key stakeholders, including Configuration Control Boards, Security Accreditation Boards, Security Accreditation Authorities, and organizational units supporting accreditation processes.
- Deliver briefings to both executive and technical audiences on security assessments, reports, and testing outcomes.
- In coordination with the Head of the Penetration Testing Team, ensure proactive collaboration and coordination with internal and external stakeholders.
What do you need to succeed in this position?
- Bachelor's degree in a relevant field with at least 3 years of experience in:
- Web application penetration testing.
- IT infrastructure penetration testing.
- Network security architecture design.
- Assessing security vulnerabilities within operating systems, software, protocols, and networks.
- Researching and evaluating security products and technologies.
- System and network administration of UNIX and Windows environments.
- Use of penetration testing tools, techniques, and recognized testing methodologies.
- Scripting skills in at least one of the following: Perl, Python, Ruby, or shell scripting (Bash, KSH, CSH).
- Technical knowledge of system and network security, authentication and security protocols, cryptography, application security, malware infection techniques, and protection technologies.
- Ability to evaluate risks and formulate mitigation plans.
- Proven ability to write clear and structured technical reports, including executive summaries, technical findings, and remediation plans for different audiences.
- An active NATO Security Clearance is required.
- Very good command of spoken and written English (B2).
At Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. Take a look at our Diversity, Equality & Inclusion Policy for more information.
Frequently Asked Questions
Is the salary disclosed for the Penetration Tester position at Uni Systems?
The salary for this Penetration Tester role at Uni Systems is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Penetration Tester position at Uni Systems located?
This Penetration Tester role at Uni Systems is based in Braine-l'Alleud, Wallonia, Belgium. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Penetration Tester role at Uni Systems full-time or part-time?
This is listed as a Full time position. It is posted as a Penetration Tester role in the International BU department at Uni Systems.
Which team or department does the Penetration Tester at Uni Systems belong to?
This Penetration Tester position is part of the International BU department at Uni Systems. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Penetration Tester position at Uni Systems?
Click the "Apply Now" button on this page. You will be redirected to Uni Systems's official application portal hosted on workable where you can submit your application directly.
When was the Penetration Tester job at Uni Systems posted?
This Penetration Tester position at Uni Systems was posted on Jun 8, 2026. Apply as soon as possible — early applications are often reviewed first.
Penetration Tester
Uni Systems
You'll be redirected to Uni Systems's official application page on workable.