Operational Security Engineer – N2-3 Firewall

Keoni; Paris; Hybrid; EUR 60,000 - 90,000; Full time

Job summary

Kéoni Consulting is an IT consulting and engineering firm specializing in banking, finance, insurance, and industry sectors. We are seeking an Operational Security Engineer to support firewall infrastructure and policy implementation across Europe, with professional English communication required.

Responsibilities include delivering analysis requests, troubleshooting, and implementing filtering rules on firewalls. The role emphasizes autonomy, team spirit, and clear explanations of actions.

Qualifications

• Experience configuring and maintaining firewall rules.
• Strong knowledge of firewall policies and procedures.
• Professional English communication required.

Responsibilities

• Delivery: analyze requests and troubleshoot firewall issues.
• Modify filtering policies according to project requirements.
• Define and implement firewall rules and ensure operability; participate in after-hours on-call duties.

Skills

Firewall

Palo Alto

Fortinet

NSX

Microsegmentation

English proficiency

Job description

# Operational Security Engineer – N2-3 Firewall* Operational Security Engineer – N2-3 FirewallCONTEXT Overall objective: To support the implementation of the network security policyLanguage skills: Professional English (Important)Application: CV + cover letter + copies of diplomas to be sent to [e-mail] in 2008, Kéoni Consulting is an IT consulting and engineering firm specializing in the banking, financial markets, insurance, and industrial sectors. We are the partner for major accounts in their digital transformation. We help them transform their business model, align their operational processes, select the best technologies, and mitigate and overcome the risks associated with digitalization. Kéoni Consulting helps companies to: Make a difference , innovate and create , reinvent their business, satisfy customers, gain a competitive advantage, become the leader in their sector, and become the leader in their sector. Our services cover the entire information systems lifecycle (Project Management, Business Analysis Consulting, Design, Implementation, Maintenance, Production, and Operations).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 the proper 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 on-call network and security duties (Firewall filtering, Web filtering, Proxies).Technical Skills: • Firewall – Confirmed – Essential • Palo Alto – Confirmed – Essential • Fortinet – Confirmed – Essential • NSX – Confirmed – Essential • Microsegmentation – Essential**Work location:** Europe