Team Lead - Site Reliability Engineering (all genders)

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Responsibilities

You own the operational health of our hosting across on-premise (Frankfurt, Stockholm) and cloud – availability, performance, and incident management.
You actively drive the modernization toward Kubernetes on Harvester: cluster topology, storage (Longhorn), networking (VLAN, load balancing, ingress), backup, and disaster recovery.
You build a production-grade k8s platform: lifecycle, upgrades, RBAC, secrets, GitOps (Argo CD / Flux), observability, and policy guardrails.
You shape the NG Search Operator (custom Kubernetes operator) and solve auto-scaling (HPA, VPA, KEDA, cluster autoscaler) for the current architecture.
You concretely define our on-prem hybrid model: which workloads run where, how we burst into the cloud, how we keep latency and cost under control – while keeping the architecture portable enough for a future cloud-only move.
You own capacity planning and hosting cost and turn cost into a deliberate, managed lever.
You lead and develop our currently 4-person Hosting team, own performance and technical direction, and set the standards and ownership culture.
You make AI a core part of our operations: diagnosis, automation, monitoring, and insight.

Strong background in infrastructure or platform engineering across on-premise and cloud.
Hands-on depth with Kubernetes in production: cluster lifecycle, upgrades, networking, storage, RBAC, observability, GitOps delivery.
Proven people leadership experience, excellent communication and stakeholder management skills.
Ideally practical experience with Harvester or comparable HCI/virtualization platforms (KubeVirt, vSphere/ESXi, OpenStack).
Solid grasp of auto-scaling primitives (HPA, VPA, cluster autoscaler, KEDA) and how they interact with capacity planning on-prem and in the cloud.
Experience with on-prem hybrid architectures and owning reliability, capacity, and cost for production systems.
Hands-on fluency with AI tools in day-to-day operations.
Fluent English; German is a plus.

Experience leading a real migration from bare metal / classic VMs to a k8s-based platform – including stateful workloads, storage migration, cutover, and rollback.
Comfort designing or operating Kubernetes operators (custom controllers / CRDs), ideally for stateful systems like search, databases, or streaming.

Impact from day one: Your work directly influences the revenue of leading eCommerce brands across Europe.
Leadership with real scope: You lead an established team and shape our platform in a decisive phase of our transformation.
Modern tech stack: Kubernetes, Harvester, GitOps, auto-scaling, and an exciting path toward the cloud – with room to build things right.
AI-first mindset: We use AI as a real part of our daily work, not as a buzzword.
Ownership & growth: Clear responsibility, short decision paths, and the opportunity to actively shape your role.
Flexible work: Hybrid work model with a focus on outcomes.
Strong team: Experienced engineers, an open feedback culture, and an environment where reliability is treated as a real engineering discipline.
Attractive benefits: Competitive salary, modern equipment, learning budget, and regular team events.

Berlin, Munich, Pforzheim or Stockholm (hybrid)