Senior Site Reliability Engineer / SRE – Kubernetes & Hybrid Cloud (m/f/d)

Fact Finder · Berlinsenior

En corto

▸Ingeniero SRE senior que construye y gestiona una nube privada con Kubernetes y Harvester en infraestructura propia.
▸Trabaja en equipo con desarrollo para automatizar, observar y hacer sostenible el sistema; impacto directo en 2.000 tiendas online.
▸No es SRE en la nube gestionada: se construye una plataforma on-prem desde cero con capacidades híbridas.

Fluent English required

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¿Qué piden?

✓Experiencia probada con Kubernetes en producción, instalado y mantenido en servidores propios (kubeadm, RKE2, k3s)
✓Práctica real de SRE: SLOs, error budgets, gestión de incidentes y on-call
✓Experiencia con GitOps (Argo CD o Flux) para automatización de infraestructura
✓Habilidades sólidas en observabilidad: métricas, logs, traces y alertas confiables
✓Instinto fuerte para la automatización y eliminación de toil
✓Enfoque colaborativo y servicial hacia equipos de desarrollo

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KubernetesHarvesterKubeVirtArgo CDFluxPrometheusGrafanaLonghornCephvSphere/ESXi

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Introduction At a glance Location & work model : Berlin, hybrid Tech stack: Kubernetes on our own servers, Harvester ( KubeVirt ), Argo CD/Flux, Prometheus/Grafana, Longhorn/Ceph Team: A growing SRE team – you report to our CTPO for now and to the Team Lead SRE we're hiring next; two system administrators in Pforzheim run the physical hardware Process: Intro call · take-home task (~2h) · 90-min tech interview with our developers · leadership conversation · meet the team Languages: Fluent English required; German is a plus, not a must Why this role is special Most SRE jobs today mean clicking around a managed cloud console. This one doesn't. We run our own hardware in Frankfurt and are building a modern private cloud platform on Kubernetes and Harvester – on-prem by default, with elastic burst into the public cloud and the option to go cloud-only later. You won't inherit a finished SRE practice: you'll help define it, side by side with our Berlin development teams – and you won't do it alone, a Team Lead SRE hire is coming next. SRE here is an enabling discipline: you build what our developers need to ship reliably, while two system administrators in Pforzheim run the physical hardware. And the impact is direct – our product discovery technology powers more than 2,000 European online shops (Intersport, SPAR, Douglas and more), handling billions of shopper queries a year. When product discovery is slow or down, our customers lose revenue in real time. , or automating away a piece of toil. By day 90 you've shipped visible improvements and know where you want to take the platform next. Your mission Define and own SLOs, SLIs and error budgets; drive data-informed reliability decisions Lead incident response end-to-end: fast detection, clear communication, blameless postmortems – and reduce whole classes of incidents structurally, not case by case Eliminate toil through automation and GitOps; evolve our observability (metrics, logs, traces, alerting, runbooks) across two different stacks Help build our custom Kubernetes operator (CRDs) that makes stateful search clusters declarative, self-healing and safely upgradable – and roll out the auto-scaling (HPA/VPA, KEDA, cluster auto scaler) today's architecture makes hard Plan capacity, performance and cost across on-premises and cloud – including the large-catalogue and peak-season loads our merchants care about – and use AI tools wherever they measurably speed up diagnosis and operations g.

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