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

What's important

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