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.

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

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