Senior DevOps Engineer - Highload, Cloud & Data-Intensive Systems (EU / Remote)

About The Project The team develops and maintains distributed services around analytics, APIs, and transaction monitoring. The systems process very large volumes of data — terabytes of storage, trillions of records, continuously growing load.Infrastructure100 servers (bare metal + VPS)active use of IaCKubernetes clusters in productionfocus on stability, observability, and automationThe project is long-term — not a hype startup, but a mature product with real users.What The Work Looks Like This is a hands‐on role with a clear time allocation:60% — operations and incidents (including helping teams)20% — infrastructure automation20% — prototyping, improvements, technical initiativesThere is on‐call responsibility, but normally after‐hours incidents happen 2‐3 times a year, not every week.ResponsibilitiesOperation of production services and infrastructure (server provisioning/decommissioning, updates, replacements, performance troubleshooting)Support and development of Infrastructure as Code (Terraform / Ansible: modules, roles, standards, reviews)Monitoring, alerting, backups, and regular recovery checksDevelopment of service and infrastructure automationDevelopment of CI/CD and release proceduresIncident diagnosis and resolution, support for product teamsTraffic analytics, bot and attack protection toolsResponsibility for 24/7 platform stabilityRequirements4+ years of experience operating Linux/Ubuntu infrastructure and production servicesStrong understanding of networking and troubleshootingKubernetes (cluster operations), Rancher, Docker / containerdHands‐on experience with Ansible and TerraformMonitoring: Prometheus / Thanos / Telegraf / Grafana / SentryCI/CD: JenkinsAutomation: Bash, PythonExperience working with LVMNice to haveExperience working with blockchain nodesDiagnosis and tuning of ClickHouse and MongoDB in high‐load clustersProviders: Hetzner / OVHcloudCloudflare (edge, DDoS), experience with AWSHandling abuse tickets with hosting providersTechnology stackVPN: WireGuard, OpenVPNDatabases: ClickHouse, MongoDB, Redis, PostgreSQLApplications: Node.js (pm2), php-fpm, Lua, TarantoolSupporting services: Go (operatorSDK), Ruby, Node.js, PHPBenefits5,000 - 8,000 € netFormat: office / hybrid / remoteLocation: Spain (Barcelona and suburbs) or remote (CET ±2)Full-timeOpportunity to genuinely influence architecture and processesMature engineering team and reasonable expectations#J-18808-Ljbffr