Senior Platform Engineer

For our client, an innovative open-source technology company, we are looking for an experienced Senior Platform Engineer who will play a key role in building and operating a production-grade, multi-tenant SaaS platform.

Responsibilities:

• Design, operate and scale highly available Kubernetes clusters (EKS / GKE / AKS)
• Develop and maintain the Kubernetes Operator (CRDs, reconciliation logic, upgrades)
• Build and automate infrastructure using Terraform or Pulumi
• Design architecture, implementation and operation of cloud based infrastructure and services including multi-tenancy and tenant isolation.
• Own reliability, scalability and performance (SLOs, autoscaling, postmortems)
• Implement security best practices (Zero Trust, Vault/KMS, SOC 2, ISO 27001)
• Set up observability and monitoring (Prometheus, Grafana, OpenTelemetry, alerting)
• Optimize cloud costs and capacity (FinOps, rightsizing, spot instances)
• Collaborate with the open-source community, review PRs and maintain documentation

Requirements:

• 7+ years of experience running containerized applications in production
• Deep Kubernetes & Helm knowledge plus hands‑on Operator development (Operator SDK, controller‑runtime, CRDs)
• Infrastructure as Code experience (Terraform or Pulumi)
• CI/CD pipelines (GitHub Actions, Argo CD / Flux, Argo Rollouts)
• Experience with design, implementation and operation of cloud infrastructure for SaaS services including logging, monitoring, authentication, authorization, backups, SIEM, ....
• Experience with observability tools (Prometheus, Grafana, Alertmanager, OpenTelemetry)
• Strong security mindset and experience with compliance standards
• Ability to work independently and design production-ready solutions

Nice to Have:

• Experience running open-source projects as SaaS
• Service mesh technologies (Istio, Linkerd), policy engines (OPA / Gatekeeper)
• Chaos engineering tools (Litmus, Gremlin)
• FinOps tooling (Kubecost, cloud billing tools)
• PKI / certificate management knowledge (ACME, cert-manager)
• Experience with eIDAS or FIPS compliance

We Offer:

• Remote-first cooperation within the EU (CET/CEST time zone)
• Opportunity to work on a global open-source product with real-world impact
• High level of autonomy and influence on platform architecture
• Modern engineering culture (GitOps, automation, game days)
• 5 weeks of paid vacation
• Budget for learning, certifications and conferences
• Active participation in the open-source community
• Location: Prague

If you are interested in this position, please send us your structured CV. We will contact you as soon as possible.

PŘEDVÝBĚR.CZ a.s. reserves the right not to contact candidates who do not meet the above requirements.

One of the advantages of working with us is speed – you will complete only a telephone interview with our consultants.

By responding to this job advertisement, I agree that PŘEDVÝBĚR.CZ a.s., with its registered office at Na Kozačce 1289/7, Prague 2, may process my personal data for the purpose of job mediation in accordance with Act No. 110/2019 Coll., until withdrawn in writing.