Senior Site Reliability Engineer (m/f/d)

GoHiring GmbH; Deutschland; Vor Ort; EUR 90.000 - 120.000; Vollzeit

Zusammenfassung

FACT-Finder is seeking a Senior Site Reliability Engineer to own reliability across its SaaS platform. You’ll define SLOs/SLIs, drive incident response, and automate operations using GitOps with Argo CD and Flux.

The role focuses on reducing toil, enabling auto-scaling, and shaping observability for fast, scalable software delivery. You will collaborate with Hosting and engineering teams to evolve a hybrid Kubernetes-based platform and contribute to cloud-ready capabilities while ensuring high

Qualifikationen

• Experience as an SRE, infrastructure, or production engineer in a SaaS or platform environment, or a strong software/operations background with a clear drive to grow into an SRE role.
• Solid understanding of SLOs, error budgets, incident management, and observability.
• Hands-on experience with Kubernetes and interest in cluster lifecycle, upgrades, and operator patterns.

Aufgaben

• Define and own SLOs, SLIs, and error budgets across both products and make data-driven decisions on reliability and performance.
• Drive incident response: fast detection, clear communication, blameless postmortems, and meaningful follow-through.
• Reduce manual work through automation and GitOps (e.g. Argo CD / Flux) and build out self-healing and self-service capabilities.
• Support development of an NG Search Operator (custom Kubernetes operator / CRDs) and rollout of auto-scaling (HPA, VPA, KEDA, cluster autoscaler).
• Evolve observability – metrics, logs, traces, alerting, and runbooks that actually help on call.
• Plan capacity and cost across on-premise and cloud, including burst scenarios into the public cloud.
• Leverage AI tools to accelerate diagnosis, alerting, and operational workflows.

Kenntnisse

Kubernetes

SRE

GitOps

Observability

Automation

AI tools

HPA

VPA

KEDA

Networking

Tools

Argo CD

Flux

Harvester

KubeVirt

OpenStack

vSphere/ESXi

Jobbeschreibung

Senior Site Reliability Engineer (m/f/d)

FACT-Finder builds product discovery technology for eCommerce and is trusted by leading online shops across Europe with its two products Next Generation and Infinity. Both products are moving toward a modern, hybrid platform based on Kubernetes and Harvester – with the option to scale fully into the cloud in the mid-term. As a Senior Site Reliability Engineer (SRE), you make sure our systems stay fast, available, and scalable throughout this transformation. You work closely with the Hosting team and experienced engineers, and actively shape our journey toward a modern SaaS company.

Your mission

• You define and own SLOs, SLIs, and error budgets across both products and make data-driven decisions on reliability and performance.
• You drive incident response: fast detection, clear communication, blameless postmortems, and meaningful follow-through.
• You consistently reduce manual work through automation and GitOps (e.g. Argo CD / Flux) and build out self-healing and self-service capabilities.
• You support the development of an NG Search Operator (custom Kubernetes operator / CRDs) and the rollout of auto-scaling (HPA, VPA, KEDA, cluster autoscaler).
• You evolve our observability – metrics, logs, traces, alerting, and runbooks that actually help on call.
• You plan capacity and cost across on-premise (Frankfurt, Stockholm) and cloud – including burst scenarios into the public cloud.
• You leverage AI tools to noticeably accelerate diagnosis, alerting, and operational workflows.

Your profile

• Experience as an SRE, infrastructure, or production engineer in a SaaS or platform environment – or a strong software/operations background with a clear drive to grow into an SRE role.
• Solid understanding of SLOs, error budgets, incident management, and observability.
• Hands‑on experience with Kubernetes and interest in cluster lifecycle, upgrades, and operator patterns.
• Experience with or strong interest in Harvester or comparable HCI/virtualization platforms (KubeVirt, vSphere/ESXi, OpenStack).
• Familiarity with GitOps (Argo CD / Flux), container storage (Longhorn, Ceph), and Kubernetes networking (load balancing, ingress).
• Knowledge of auto‑scaling primitives (HPA, VPA, cluster autoscaler, KEDA) and capacity planning on‑prem and in the cloud.
• Understanding of networking in production‑grade datacenters (incl. VLAN).
• A strong automation instinct and a mindset to structurally eliminate toil.
• Practical experience using AI tools in day‑to‑day operations.
• Fluent English; German is a plus.

THE JOY OF WORKING WITH US

• Impact from day one: Your work directly influences the revenue of leading eCommerce brands across Europe.
• 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.

Job Location

About us

We are one of the leading Product Discovery Platforms for European eCommerce. Our search, navigation and recommendations handle billions of shopper queries every year — driving a combined GMV of more than €160 billion across our customers. These include Intersport, Spar, Douglas and more than 2,000 further B2B and B2C eCommerce companies across Europe.
For over 20 years we have been an essential part of the complex eCommerce landscape, and with our AI-powered Product Discovery Experience (PDX) we are now entering the next phase — as a Private-Equity-owned company (Genui), under a new McKinsey-shaped management team, with a clear growth and EBITDA plan. Offices in Pforzheim, Berlin, Munich and Stockholm.