Senior Platform Engineer (Kubernetes & Linux) (m/w/d)

This Senior Platform Engineer joins a small ops-focused team responsible for the availability, security and auditability of Glückliche Gäste GmbH’s platform and server infrastructure; your work ensures customer-facing products run 24x7 across Kubernetes clusters, Linux servers and on-prem hardware while meeting growing security and compliance demands.

What you'll do

• Own the stable, secure and auditable operation of the platform and server infrastructure.
• Operate and evolve multiple Kubernetes clusters running on VMs and physical Linux hosts.
• Take 24x7 ownership for a platform that must remain continuously available.
• Provide 2nd-level on-call response and incident handling for infrastructure incidents.
• Design and implement infrastructure with focus on availability, security, automation and auditability.
• Implement and maintain Security-by-Design controls including system hardening, access concepts and secrets management.
• Build logging, monitoring and traceability to ensure operational visibility and audit evidence.
• Translate C5 and ISO 27018 requirements into concrete technical controls and maintain audit-ready documentation.
• Automate operations, deployments and maintenance tasks (Bash is standard; introduce other tools as needed).
• Collaborate closely with development, product and external security/compliance partners as the technical point of contact.

What Glückliche Gäste GmbH is looking for

• Several years of experience operating complex Linux infrastructures.
• Strong, practical experience running Kubernetes in production.
• Deep understanding of Linux systems, networking and storage.
• Very good Bash skills and an automation-first mindset.
• Solid, hands-on IT security knowledge: system/network hardening, access control/identity concepts, logging, monitoring and incident response.
• Experience or strong interest in security and compliance frameworks (C5, ISO 27018 or similar) and translating them into technical controls.
• Ability to implement pragmatic, audit-ready security and compliance measures and produce necessary documentation/evidence.
• Structured, responsible approach with focus on long-term operability.
• Fluent German language skills.
• Preference for infrastructure-focused work (no Windows/helpdesk/classic shift-based support).