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Senior Penetration Tester

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Belden, Inc

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Location:
Belgium , Olen

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

A senior penetration tester's main responsibility is to execute highly complex and specialized penetration tests. He is a specialist in cyber security topics in IT and OT. He has the expertise to design and carry out advanced assessments, often acting as a key technical resource for the team.

Job Responsibility:

  • Executing Advanced Penetration Tests: conduct in-depth security assessments on complex systems, including web applications, cloud environments, networks, and mobile applications
  • Developing Custom Tools and Exploits: develop own scripts and exploits to bypass sophisticated security controls and find zero-day vulnerabilities
  • Technical Mentorship: Guiding and mentoring junior and mid-level testers
  • Reporting and Communication: writing detailed technical reports that clearly outline vulnerabilities, their potential impact, and actionable recommendations for remediation
  • Staying Current: continuously research new threats, attack vectors, and security technologies

Requirements:

  • 5+ years of hands-on experience in penetration testing, red teaming, or a related offensive security role
  • Relevant industry certifications such as Offensive Security Certified Professional (OSCP), Certified Ethical Hacker (CEH), or GIAC certifications (e.g., GPEN, GWAPT)
  • Proficiency in at least one scripting language (e.g., Python, Ruby, PowerShell) for automating tasks and developing custom tools
  • Deep knowledge of Windows and Linux/Unix operating systems
  • Strong understanding of TCP/IP, network protocols, and common network services
  • Extensive experience with common web vulnerabilities (e.g., OWASP Top 10) and familiarity with various web application frameworks
  • Experience with penetration testing in at least one major cloud provider (e.g., AWS, Azure)
  • Excellent written and verbal communication skills
  • Strong problem-solving and analytical abilities
  • Ability to work independently and as part of a team
  • A passion for continuous learning and staying updated on the latest cybersecurity threats and trends
  • Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related field, or equivalent practical experience

Nice to have:

experience in penetration testing AI implementations would be desirable

Additional Information:

Job Posted:
December 24, 2025

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