Groupe Aptenia

Contractor job EXPERT ATTACK SURFACE MANAGEMENT (ASM) & THREAT HUNTING

Ile-de-France

Groupe Aptenia

Published on 10/13/2026

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1. Attack Surface Management

•     Cartographier en continu l'ensemble des actifs exposés sur Internet : domaines, sous-domaines, IP, services, certificats, environnements cloud.

•     Identifier le shadow IT et les actifs non référencés.

•     Exploiter et paramétrer les plateformes ASM et de notation de sécurité (Cortex Xpanse, Censys, Bitsight, SecurityScorecard).

•     Suivre et faire progresser le score de sécurité externe de l'entreprise.

•     Qualifier, prioriser les expositions et piloter leur remédiation avec les équipes concernées.

2. Threat Hunting

•     Construire et mener des campagnes de chasse basées sur des hypothèses (MITRE ATT&CK).

•     Réaliser des investigations avancées dans Cortex XDR / XSIAM (requêtes XQL).

•     Corréler l'exposition externe avec l'activité malveillante observée.

3. Conseil et amélioration continue

•     Challenger le client sur sa stratégie d'exposition et proposer une feuille de route.

•     Automatiser les processus de découverte et de suivi (scripts, API, outillage maison).

•     Produire des reportings clairs à destination des équipes techniques et du management.

Candidate profile

•     Expérience significative en Attack Surface Management / EASM.

•     Pratique réelle des outils ASM cités, idéalement Cortex Xpanse, Censys ou Bitsight.

•     Solide savoir-faire en threat hunting.

•     Capacité à scripter et automatiser (Python, API).

•     Anglais professionnel courant.

Working environment

  • Environnement de travail dynamique

  • Contexte International

  • Mission stimulante

  • Flexibilité

  • Environnement positif

Rejoignez une équipe dynamique

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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EXPERT ATTACK SURFACE MANAGEMENT (ASM) & THREAT HUNTING

Groupe Aptenia

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