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Senior IT-Spezialist Netzwerk-Security (M/W/D)

Köln, NORDRHEIN_WESTFALENFull-time2026-03-27 → 2026-10-16
Hybrid

Core

Designing and securing network architecture from conception to implementation, identifying risks, and implementing robust network security solutions.

Role type

Senior network security specialist

Builds

Secure network architecture and security solutions for public service providers, international institutions, and companies

Domain

IT Security / Network Infrastructure

Required skills

Network protocols (TCP/IP, DNS, DHCP), Cryptography, Access control, Terminal server technologies, Privileged Access Management, ISO 2700x standards, IT-Grundschutz, Incident management, Change management, Configuration management

Preferred skills

Project leadership, Risk analysis, Reporting

Technologies

Firewalls, VPNs, VLANs, NAT, Switches, Routers

Responsibilities

Contribute to the conception, development, and implementation of security strategies for networks based on best practices and current security standards. Responsible for the implementation and monitoring of network security solutions (e.g., firewalls, VPNs, VLANs, NAT, switches, routers). Conduct regular security assessments and audits, as well as develop measures to improve network security. Close collaboration with internal stakeholders and external service providers to ensure a robust and secure network architecture. Creation and preparation of security and risk analyses for management as well as participation in the establishment of structured reporting. Steering and further development of network security processes, including incident management, problem management, change management, and configuration management. Consulting and implementation of IT security projects of medium to high complexity.