CareerPlan

Senior System Engineer (m/w/d)

DüsseldorfFull-time2026-09-07 → 2026-11-11

Core

Senior System Engineer responsible for modernizing network infrastructure, implementing Zero Trust security, automating macOS device management, and hardening identity systems.

Role type

Senior System Engineer (Infrastructure & Security)

Builds

Network architecture, Zero Trust access controls, automated device lifecycle management, and secure SaaS integration.

Domain

IT Infrastructure, Network Security, Identity Management

Required skills

Network administration (Switching, Routing, VLANs, Firewalls), Zero Trust Network Access (ZTNA), Mobile Device Management (JAMF Pro), Identity & Access Management (Entra ID), Unix/Linux scripting (Bash, Zsh), macOS administration, Security & Compliance concepts, Incident management, Team mentoring.

Preferred skills

Infrastructure as Code (Ansible, OpenTofu), Git-based workflows, Microsoft 365 Security, Endpoint Security (Defender), Monitoring solutions (Zabbix, Grafana, Prometheus), Python.

Technologies

WireGuard, JAMF Pro, Entra ID, macOS, Linux, Zsh, Bash, Python, Ansible, OpenTofu, Git, Zabbix, Grafana, Prometheus, Microsoft 365, Defender.

Responsibilities

Design and evolve network architecture including Switching, Routing, and VPN; Drive migration to Zero Trust Network Access (ZTNA); Automate macOS device lifecycle and update strategies; Manage and harden Entra ID environments; Build proactive monitoring and alerting systems; Act as 3rd-level support and develop runbooks; Mentor junior team members and establish technical standards.

Seniority

Senior, hands-on IC with mentorship responsibilities