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Infinity Quest
Senior Offensive Security Specialist

Senior Offensive Security Specialist

On site

Brussels, Belgium

Senior

Freelance

14-11-2025

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Skills

Communication Python Bash PowerShell Penetration Testing Incident Response Encryption Research Linux Windows Programming Azure AWS cloud platforms GCP Active Directory

Job Specifications

Requirements

What do you need to succeed in this position?

Bachelor’s degree in IT or a related field and minimum 12 years of relevant experience.
At least 6 years of experience in testing and cybersecurity.
Minimum of 2 certifications, one in offensive security (e.g., OSCP, CRTO, GPEN, GXPN, CCSP) and one in cybersecurity, IT, computer science, governance, etc.
Proven experience in penetration testing across on-premise, web, and cloud environments.
Strong knowledge of network protocols, encryption, and common attack techniques.
Hands-on experience with penetration testing and red team tools, including: Active Directory & Enterprise Attacks, Command & Control (C2) Frameworks, Payload Generation & Shellcode Development, Binary Exploitation & Vulnerability Research, Reverse Engineering & Debugging, Fuzzing & Automated Vulnerability Discovery, Network Reconnaissance & Attacks, Tactical Simulation & Adversary Emulation.
Solid experience with Windows, Linux, and cloud platforms (AWS, Azure, GCP).
Scripting or programming skills in PowerShell, Python, Bash, or similar.
Experience collaborating with SOC teams and supporting incident response.
Advanced English (C1) communication skills (written and spoken).

About the Company

Infinity Quest (IQ) with its roots from Staffing and Recruitment provides world class business solutions to our valued customers. We specialise in Professional Services, SAP, Salesforce and RPA. Our team of experts understand the challenges you face every day and provide simple technology driven solutions to your complex problems. We have over 15 years experience within the professional services & technology services industry and have catered to wide variety of clientele from SMEs to global corporations. At IQ we are dedicat... Know more

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