Groupe Aptenia

Job Vacancy Pentester / Ethical Hacker (Red Team)

Brussels

Groupe Aptenia

Active Directory
Azure
Bash
Burp Suite
Cloud
CVE
Kubernetes
Metasploit
MITRE ATT&CK
Nmap
OWASP
Powershell
Python
Published on 23/10/2026

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You test the security of end clients' information systems under real-world conditions. You identify, exploit and document vulnerabilities, then help teams fix them. Depending on your seniority, you progress from classic penetration testing to full Red Team operations.

Responsibilities

Perform penetration tests: web, API, mobile, infrastructure, Active Directory, cloud
Conduct configuration and code audits (application security review)
Run Red Team operations: social engineering, phishing, physical access, persistence, lateral movement
Exploit and chain vulnerabilities to demonstrate real business impact
Write clear reports: executive summary, technical details, prioritized recommendations
Present findings to technical teams and leadership
Support remediation and perform retests
Develop internal tools and scripts (Python, PowerShell, Bash)
Contribute to pre-sales: scope definition, estimation, proposal writing
Maintain continuous watch on vulnerabilities and attack techniques (CVEs, TTPs)

Candidate profile

Must-have

3+ years in pentesting or Red Team (consulting or in-house)
Strong command of methodologies: OWASP (Top 10, ASVS), PTES, MITRE ATT&CK
Solid skills in web / API application testing and/or Active Directory attacks
Proficiency with tools: Burp Suite, Nmap, Metasploit, BloodHound, Cobalt Strike or equivalent
Excellent report-writing skills

Nice-to-have

Certifications: OSCP, OSEP, OSWE, CRTO, GPEN, GXPN, PNPT
Cloud exploitation (Azure, AWS) and containers (Kubernetes)
Exploit development, EDR evasion, red team infrastructure
Track record: published CVEs, CTFs, bug bounty, conference talks
Knowledge of the Belgian framework: CCB, CyFun, TIBER-BE (financial sector)

Lyon, Auvergne-Rhône-Alpes
20 - 99 employees
Consultancy firm
𝐀𝐩𝐭𝐞𝐧𝐢𝐚 – 𝐘𝐨𝐮𝐫 𝐄𝐱𝐩𝐞𝐫𝐭 𝐈𝐓 𝐑𝐞𝐜𝐫𝐮𝐢𝐭𝐦𝐞𝐧𝐭 𝐅𝐢𝐫𝐦 Aptenia is a specialized recruitment agency designed to meet the specific needs of companies seeking top talent. Based in London, Paris, and Lyon, we position ourselves as a key player in sourcing rare and strategic profiles. Our mission is to help clients achieve their hiring goals, reduce vacancy downtime, and maximize productivity by quickly finding the right talent. We are committed to building a service that values expertise and understands business challenges. With a proven network of qualified candidates, we connect top technical experts with fast-growing tech companies. 💻 𝐎𝐔𝐑 𝐈𝐓 & 𝐓𝐄𝐂𝐇 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄 🔒 𝐂𝐲𝐛𝐞𝐫𝐬𝐞𝐜𝐮𝐫𝐢𝐭𝐲 : Risk management, infrastructure protection, and information system security. ☁️ 𝐂𝐥𝐨𝐮𝐝 : Migration, architecture, and infrastructure optimization (AWS, GCP, Azure). 📊 𝐃𝐚𝐭𝐚 𝐒𝐜𝐢𝐞𝐧𝐜𝐞 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 : Big Data, analytics, artificial intelligence, and machine learning engineering. 🤖 𝐀𝐫𝐭𝐢𝐟𝐢𝐜𝐢𝐚𝐥 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞 : Automation, deep learning, and AI solutions. ⚙️ 𝐄𝐑𝐏/𝐂𝐑𝐌 : Expertise in SAP, Salesforce, and Microsoft Dynamics. We recruit within the top 1% to 3% of talent in France, offering a modern and efficient recruitment approach that enables companies to sustain growth and profitability. By choosing Aptenia, you gain a tailor-made approach and a strategic partner to build high-performing and long-lasting teams.

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Pentester / Ethical Hacker (Red Team)

Groupe Aptenia

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