# Penetration Tester

> Uni Systems · Braine-l'Alleud, Belgium · Full-time · Posted 2026-07-28

**Workplace:** on_site

**Department:** Professional Services Practice

## Description

At Uni Systems, 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.

**What will you be doing in this role?**

-   Lead and/or be part of the Red/Blue Team during NATO military exercises.
-   Provide Web, infrastructure and application level penetration testing.
-   Provide security design reviews to ensure compliance with NATO policies and directives.
-   Provide security consultancy and advice to projects, plans, and other entities.
-   Build and sustain effective communications with different stakeholders; specifically, the NCIA Configuration Control Board, Security Accreditation Boards, NATO Security Accreditation
-   Authorities, and NCI Agency organization units supporting accreditation processes.
-   Brief at both executive and technical levels on security reports and testing outcome, including at flag officer level.
-   In co-ordination with the Head of the Penetration testing Cell, ensure proactive collaboration and coordination with internal and external stakeholders.

## Requirements

**What do you need to succeed in this position?**

-   At least 3 years of experience in penetration testing of web applications & IT infrastructure and Network security architecture design.
-   More than 3 years of experience assessing security vulnerabilities within OS, software, protocols & networks, researching and evaluating security products & technologies.
-   Knowledge in system and network administration of UNIX and Windows systems.
-   Use of penetration testing tools, techniques, and recognized testing methodologies.
-   Scripting skills in at least one of the following: Perl, Python, Ruby, shell (bash, ksh, csh).
-   Technical knowledge in system and network security, authentication and security protocols, cryptography, application security, as well as, 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 summary, technical findings and remediation.
-   Advanced English (C1) communication skills (written and spoken).

## Benefits

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](https://www.unisystems.com/sites/default/files/2023-05/Diversity%2C%20Equality%20and%20Inclusion%20Policy.pdf) for more information.

## Apply

[Apply at Uni Systems](https://apply.workable.com/uni-systems/j/4E67E9FCA1/apply)

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