CareerPlan

Informaticienne/Informaticien systèmes et réseaux (F/H) - Administration messagerie et sécurité

Nantes, Pays de la Loire, FRFull-time2026-11-06 → 2026-11-07

Core

Administration of authentication and messaging infrastructures for a banking group.

Role type

Systems and Networks Administrator (Messaging & Security)

Builds

Authentication services (Active Directory, RSA) and messaging platforms (Exchange, Ironport, Postfix) for employees.

Domain

Banking / IT Infrastructure

Required skills

Exchange administration, Postfix administration, Active Directory management, network fundamentals, incident management, procedure specification

Preferred skills

Cisco Ironport knowledge, ADFS, DNS, Radius, PRA/PCA, ADLDS

Technologies

Microsoft Exchange, Ironport, Postfix, Active Directory, RSA, ADFS, DNS, Radius

Responsibilities

Implement new messaging features, define standards, manage daily infrastructure operations, provide Level 3 expert support, analyze incidents, create operational procedures

Seniority

Mid-level, hands-on IC