OpenStack Engineer; m​/w​/d

We are seeking an experienced Open Stack Engineer (L3) to provide senior-level engineering and operational support for enterprise Open Stack environments. The role focuses on complex troubleshooting, control-plane operations, architecture validation, performance optimization, capacity planning, and the resolution of high-priority incidents. As a technical escalation point, you will guide L2 teams and contribute to the stability, scalability, and continuous improvement of cloud platform services.

• Provide advanced administration and engineering support for Open Stack cloud platforms.
• Lead complex troubleshooting and root cause analysis across Open Stack services and infrastructure components.
• Manage control-plane health, platform resilience, and operational readiness.
• Support multi-region and multi-availability-zone (AZ) environments, ensuring reliable and scalable service delivery.
• Validate architecture designs and provide recommendations for performance, capacity, and operational improvements.
• Act as an escalation point for critical incidents and complex operational challenges.
• Mentor and guide L2 engineers through advanced day-2 operational scenarios.
• Develop and maintain technical documentation, operational procedures, and best practices.
• Collaborate with infrastructure, Linux, Kubernetes, networking, and storage teams to ensure end-to-end platform stability.

• Extensive experience administering and supporting enterprise Open Stack environments.
• Strong expertise in Open Stack architecture, operations, and troubleshooting.
• Solid understanding of Linux systems, virtualization, networking, storage, and cloud infrastructure technologies.
• Experience with performance analysis, capacity planning, high availability, and platform resilience.
• Proven ability to resolve complex technical issues and lead incident response activities.
• Strong analytical, communication, and stakeholder management skills.

• Advanced Open Stack platform certification
• Red Hat Certified Architect (RHCA) or equivalent cloud-focused certification
• Certified Kubernetes Security Specialist (CKS)
• Additional Security, Network, Storage, or Compute infrastructure certifications are advantageous

• German language proficiency at minimum B2 level is mandatory.
• The role requires the ability to participate in technical discussions, incident coordination, service reviews, change management activities, and day-to-day communication with German-speaking stakeholders, customers, and operational teams.
• Applicants must hold Swiss citizenship.

• Candidates should be based in, or regularly available within the Winterthur region to support customer interactions, operational alignment, coordination with onsite and remote-hands teams, and participation in governance, escalation, and service review meetings as required.