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Systems Engineer

Lisbon, Portugal💼 Full-time🗓 2026-09-16 → 2026-09-26

Core

Build and manage tools to help engineers deploy and operate Cloudflare's global network services.

Role type

Senior IC Systems Engineer (Platform Tooling)

Builds

Developer productivity tooling, scalable resilient systems, and platform infrastructure for product teams.

Domain

Internet infrastructure / Cloud networking / DevOps

Deliverable

production ML models | product features | infrastructure

Required skills

Large-scale distributed systems design, Linux production environment management, Systems programming (Go, Rust, C/C++, Python), Container orchestration (Kubernetes, Docker), CI/CD pipeline design, Source control (Git), System-level troubleshooting, Resource management (CPU, bandwidth, storage)

Preferred skills

Infrastructure-as-code (Ansible, Terraform), Linux/Unix internals, Core networking protocols (TCP/IP, DNS), Open-source contributions

Responsibilities

Design and build scalable and resilient systems, Harden the platform against security threats, Improve development systems and practices, Work with application teams to architect systems, Respond and prevent incidents impacting core platforms

Seniority

Senior, hands-on IC

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