Penetration Tester

Victrix Legion; Den Haag; On-site; EUR 60,000 - 90,000; Full time

Job summary

Victrix Legion is seeking an experienced security tester to perform web application and infrastructure penetration testing, assess vulnerabilities across OS, software, protocols and networks, and evaluate security products and technologies. You will draft executive summaries, technical findings and remediation plans for diverse audiences.

The role requires deep knowledge of testing methodologies, scripting, and reporting.

Qualifications

• At least 3+ years in web app penetration testing.
• 3+ years in IT infrastructure pen testing.
• 3+ years in network security architecture design.

Skills

Web pentesting

Infra pentesting

Network design

OS/Software vulnerabilities

Security product evaluation

UNIX/Windows admin

Penetration testing tools

Scripting languages

Security protocols and cryptography

Risk assessment & mitigation

Technical reporting to execs

Malware techniques & protection

Tools

Burp Suite

Nessus

Metasploit

Nmap

Wireshark

Job description

• Extensive knowledge and experience (more than 3 years) in web application penetration testing;
• Extensive knowledge and experience (more than 3 years) in IT infrastructure penetration testing;
• Extensive knowledge and experience (more than 3 years) in network security architecture design;
• Extensive knowledge and experience (more than 3 years) in assessing security vulnerabilities within OS, software, protocols & networks;
• Extensive knowledge and experience (more than 3 years) in researching and evaluating security products & technologies;
• Knowledge in system and network administration of UNIX and Windows systems;
• Extensive knowledge and experience (more than 3 years) in the 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 plan for several different audiences

UNTIL 24 August, 2026

Job Details

On-Prem/Remote: On-Premises

Minimum Profile Required

Skill, Knowledge & Experience:

• Extensive knowledge and experience (more than 3 years) in web application penetration testing;
• Extensive knowledge and experience (more than 3 years) in IT infrastructure penetration testing;
• Extensive knowledge and experience (more than 3 years) in network security architecture design;
• Extensive knowledge and experience (more than 3 years) in assessing security vulnerabilities within OS, software, protocols & networks;
• Extensive knowledge and experience (more than 3 years) in researching and evaluating security products & technologies;
• Knowledge in system and network administration of UNIX and Windows systems;
• Extensive knowledge and experience (more than 3 years) in the 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 plan for several different audiences