Operational Security Engineer – Firewall – Level 2-IDF

Keoni; Paris; Hybrid; EUR 65,000 - 90,000; Full time

Job summary

Keoni is seeking an Operational Security Engineer – Firewall – Level 2 to join our Paris team. You will implement the security policy, monitor adherence, and actively manage firewall rules in a fast-paced environment.

You will work with Palo Alto, Fortinet, NSX, and web filtering, participate in on-call shifts, and contribute to security documentation and continuous improvement efforts.

Qualifications

• Implementation of the Security Policy across networks and systems.
• Monitoring policy compliance and deviations with incident handling.
• Supports audits and compliance tasks and contributes to security guides.

Responsibilities

• Implement and monitor security policy across Firewalls and security devices.
• Tune and modify firewall filtering rules to align with project requirements.
• Participate in after-hours security on-call duties and incident resolution.
• Draft security guides and standards to improve security, quality, and performance.

Skills

Professional English

Tools

Palo Alto

Fortinet

NSX

Web Filtering

Job description

# Operational Security Engineer – Firewall – Level 2-IDF* Home* Operational Security Engineer – Firewall – Level 2-IDF* June 16, 2026* 0 Comments* By Roberte OkoyaContext Overall objective: To support the implementation of the network security policy Strong project constraint –RUN MISSIONS : – Delivery: Analysis requests, – Troubleshooting – modification of filtering policies. For the Firewall Infrastructure domain: BUILD: – Implement the flow matrix corresponding to project requirements. RUN: – Participate in the daily implementation of filtering rules on firewalls, respecting operating rules and internal security policy. – Perform diagnostics to identify the causes of malfunctions and propose corrections and workarounds. – Define and implement rules for good management and operability of systems or products and qualify them from a technical point of view. – Propose solutions to improve the performance of RUN activities. Team spirit, autonomy, and good communication skills (being able to clearly explain what you are doing and why). Participate in after-hours interventions and regular network and security on-call duties (Firewall Filtering, Web Filtering, Proxies). The deliverable is –Technical Skills • Firewall – Confirmed – Essential • Palo Alto – Confirmed – Essential • Fortinet – Confirmed – Essential • NSX – Confirmed – EssentialLanguage skills • Professional English (Important)Job Profile Definition: Implementation of the Security Policy; Monitoring of the Security Policy, particularly through Level 1 Periodic Audits; Validates and processes deviations from the Security Policy ; Maintains the Operational Condition of Security Infrastructures (monitoring, incident/problem handling and resolution, installation and configuration); Participates in audits (internal/external); Implements audit recommendations and compliance requests; Drafts security guides and standards; Provides input on the implementation of security solutions; Proposes innovative solutions to improve security, quality, performance, and operating costs; Ensures technological monitoringPlease send your CV, cover letter, and copies of your diplomas to [e-mail]