Platform Engineer (Remote: Spain, Portugal, Bulgaria, Montenegro or Serbia)

Operate and scale the observability platform (Prometheus, Grafana, alerting). Administer self-hosted GitLab and the CI runner fleet. Maintain service health with monitoring, runbooks and clear service levels. Deploy new services from scratch, from design to production. Handle developer requests and build self-service capabilities. Manage incidents end to end: diagnosis, mitigation and root-cause analysis. Deliver all infrastructure as reviewed code (Ansible, Terraform or OpenTofu, GitOps). Write technical documentation for engineers outside your team. Delegate well-scoped tasks to AI engineering agents and review their output.

Senior-level infrastructure, platform or SRE experience with documented ownership of production services. Linux administration and debugging on bare metal and virtual machines. Production Kubernetes operated via GitOps, including cluster upgrades. Infrastructure as code with Ansible and Terraform or OpenTofu, delivered through merge-request review. GitLab administration and CI pipelines in production. Prometheus and Grafana, including alert rules, dashboards and PromQL. Technical writing for engineers outside your team and strong communication skills. Advanced use of AI engineering assistants such as Claude and Codex: providing context, breaking down tasks, designing agent loops and delegating plans. Upper-intermediate English or better. Nice to have: SLO and burn-rate alert design, microVM isolation (Kata, Firecracker, gVisor), S3-compatible object storage operations, AWS including cost management, self-hosted Sentry, Python or Go. Benefits include 24 days paid vacation, 10 national holidays, unlimited sick leave, private medical insurance compensation, co-working and gym reimbursement and an education budget.