Penetration Tester

About RMT Labs

RMT Labs SA is a Luxembourg-based research and technology company building the future of hiring in Europe. We operate two complementary brands: Talent Quanta, a profitable recruitment and ICT-consulting business serving clients across Europe since 2022, and Skillbourg, an AI-powered talent platform born from that real-world recruitment intelligence.

About the role

As a Penetration Tester in our cybersecurity team, you will find security weaknesses in web applications, APIs and infrastructure before attackers do. You will test systems for clients in banking, the public sector and other regulated sectors, and help them fix what you find.

What you will do

• Run penetration tests on web applications, APIs and infrastructure

• Plan tests with clients and agree on scope and rules of engagement

• Exploit and document vulnerabilities in a safe, controlled way

• Write clear reports with risk ratings and practical fixes

• Present results to technical and non-technical stakeholders

• Retest fixes and support clients during remediation

What you bring

• 3+ years of experience in penetration testing or offensive security

• Strong knowledge of web and API vulnerabilities (OWASP Top 10)

• Experience with tools such as Burp Suite, Nmap and Metasploit

• Good understanding of networks, Windows and Linux

• Scripting skills in Python, Bash or PowerShell

• Clear, well-structured report writing

Nice to have

• OSCP, OSWE or similar certification

• Experience with Active Directory and cloud security testing

• Red teaming experience

• Experience with TIBER-EU or DORA threat-led testing

Skills we're looking for

Technical skills

• Penetration Testing
• OWASP Top 10
• Burp Suite
• Nmap
• Metasploit

Interpersonal skills

• Stakeholder Management
• Written Communication
• Verbal Communication
• Professional Integrity
• Attention to Detail