Cloud-Scale Reliability Engineer (Distributed Systems)

WebHosting; Lisboa; Hybrid; EUR 90,000 - 150,000; Full time

Job summary

Cloudflare is hiring a Systems Engineer to architect, scale, and operate distributed infrastructure powering its global server fleets. The role focuses on automation, reliability, and high performance to support Cloudflare's platform at scale.

You will join one of the Core platform teams, building tools for deployment and operation of services, including Postgres, Kafka, and other key technologies. The position requires strong systems engineering skills and a passion for scalable infrastructure.

Qualifications

• Experience building and managing large-scale distributed systems or Linux production environments.
• Proficiency in at least one systems programming or scripting language (Go, Rust, C/C++, Python).
• Deep understanding of Linux/Unix internals and core networking protocols (TCP/IP, DNS).
• Experience with configuration management and infrastructure-as-code tools (Ansible, Terraform, SaltStack).

Responsibilities

• Architect, deploy, and maintain robust distributed systems with high availability and low latency.
• Analyse bottlenecks and fine-tune resource utilisation across global server fleets.
• Build and maintain internal tools and automation frameworks for deployment, configuration, and monitoring.
• Participate in architecture reviews, capacity planning, and proactive health monitoring.
• Collaborate with Security, Network Engineering, and Product teams to integrate infrastructure solutions.

Skills

Distributed systems

Go/Rust/Python

Linux internals

Networking

Tools

Postgres

Kafka

Job description

Cloudflare is hiring a Systems Engineer to architect, scale, and operate distributed infrastructure powering its global server fleets. The role focuses on automation, reliability, and high performance to support Cloudflare's platform at scale.

You will join one of the Core platform teams, building tools for deployment and operation of services, including Postgres, Kafka, and other key technologies. The position requires strong systems engineering skills and a passion for scalable infrastructure.