Incident Response Analyst - Cybersecurity & Threat Hunt

Ayvens; Paris; On-site; EUR 60,000 - 90,000; Full time

Job summary

Ayvens in Paris La Défense is seeking an experienced Incident Response Analyst to coordinate the containment and mitigation of cybersecurity incidents and to support the organization’s digital transformation.

You will work with the SOC and an international network of security responders, perform lessons‑learned activities, contribute to threat hunting, and help develop use cases with SIEM rule tuning. English is required.

Qualifications

• Bachelor’s degree in computer science or information security is desirable.
• Strong scripting skills in Python, PowerShell or Bash.
• Experience identifying risks, threats, and vulnerabilities.
• Knowledge of network protocols and security controls.

Responsibilities

• Manage cybersecurity incidents to ensure containment and risk mitigation.
• Follow-up incident resolution and track updates in a ticketing tool.
• Support SOC Analysts and an international network of security incident handlers.
• Perform lessons learned activities and post-mortem documentation.
• Improve DFIR capabilities with open source and commercial tools.
• Contribute to threat hunting during high severity incidents.
• Participate in use case development and SIEM rules threshold tuning.
• Engage with national and international IRT communities.

Skills

Python

PowerShell

Bash

DNS protocol

SMTP protocol

HTTP protocol

FTP protocol

Firewalls

WAF

SIEM

Packet capture

Education

Bachelor's degree in Computer Science or Information Security

Tools

Ticketing system

Job description

Ayvens in Paris La Défense is seeking an experienced Incident Response Analyst to coordinate the containment and mitigation of cybersecurity incidents and to support the organization’s digital transformation.

You will work with the SOC and an international network of security responders, perform lessons‑learned activities, contribute to threat hunting, and help develop use cases with SIEM rule tuning. English is required.