Linux System Administrator - Security Platform (m/w/d)
Core
Operating and configuring a high-availability Linux security platform (Debian) for critical infrastructure, government, and enterprise clients, including CDN, WAF, and bot management.
Role type
Senior Linux System Administrator (Security Platform Operations)
Builds
Secure, certified Security-as-a-Service platform components (CDN, WAF, Bot Management, DNS/BGP)
Domain
Cybersecurity / Network Infrastructure
Required skills
Linux CLI, Debian/Ubuntu administration, Network engineering (TCP/IP, DNS/DNSSEC, BGP, Firewalls), NGINX/WAF/CDN, Monitoring (Icinga, Grafana, Elasticsearch), 2nd-Level Support
Preferred skills
Infrastructure-as-Code (Terraform, Saltstack), Container technologies (Docker), Security certifications (CompTIA Security+, OSCP), VPN solutions (WireGuard), AI/ML tools for security
Technologies
Debian, NGINX, Icinga, Grafana, Elasticsearch, DNSSEC, BGP, WireGuard, Terraform, Docker
Responsibilities
System updates, hardening, and configuration of Linux platforms; Administration of NGINX, WAF, and CDN components; Management of DNS/DNSSEC and BGP routing; Operation of monitoring stacks and alerting rules; Customer onboarding and technical documentation; 24/7 on-call incident response
Seniority
Senior, hands-on IC
