DevOps Engineer

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. Infrastructure - 100 servers (bare metal + VPS) - active use of IaC - Kubernetes clusters in production - focus on stability, observability, and automation - The 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 automation - 20% - prototyping, improvements, technical initiatives There is on-call responsibility, but normally after-hours incidents happen 2-3 times a year, not every week. Responsibilities - Operation 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 checks - Development of service and infrastructure automation - Development of CI/CD and release procedures - Incident diagnosis and resolution, support for product teams - Traffic analytics, bot and attack protection tools - Responsibility for 24/7 platform stability Requirements - 4+ years of experience operating Linux/Ubuntu infrastructure and production services - Strong understanding of networking and troubleshooting - Kubernetes (cluster operations), Rancher, Docker / containerd - Hands-on experience with Ansible and Terraform - Monitoring: Prometheus / Thanos / Telegraf / Grafana / Sentry - CI/CD: Jenkins - Automation: Bash, Python - Experience working with LVM Nice to have - Experience working with blockchain nodes - Diagnosis and tuning of ClickHouse and MongoDB in high-load clusters - Providers: Hetzner / OVHcloud - Cloudflare (edge, DDoS), experience with AWS - Handling abuse tickets with hosting providers Technology stack - VPN: WireGuard, OpenVPN - Databases: ClickHouse, MongoDB, Redis, PostgreSQL - Applications: Node.js (pm2), php-fpm, Lua, Tarantool - Supporting services: Go (operatorSDK), Ruby, Node.js, PHP Benefits - 5,000 - 8,000 € net - Format: office / hybrid / remote - Location: Spain (Barcelona and suburbs) or remote (CET ±2) - Full-time - Opportunity to genuinely influence architecture and processes - Mature engineering team and reasonable expectations J-18808-Ljbffr