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Systems Engineer, MCP Portals

Cloudflare· Engineering
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Hybrid (Lisbon, Portugal)€54k - €75kFull-timePosted 4w ago

About the role

Cloudflare MCP Server Portals connect AI agents to internal and third-party tools. The Systems Engineer will build and operate distributed systems for authentication, OAuth sessions, Zero Trust enforcement, and proxy MCP traffic across Cloudflare’s global network, owning scoped projects from design to production support.

Responsibilities

  • Design, implement, and operate distributed services that connect MCP clients to authorized upstream MCP servers.
  • Own scoped features and service improvements through design, implementation, testing, rollout, observability, and production follow-up.
  • Evolve our implementation as the MCP specification changes while maintaining compatibility for existing customers and integrations.
  • Build secure authentication and authorization flows involving Cloudflare Access, OAuth, identity, and delegated access to upstream services.
  • Improve the reliability, scalability, latency, and resource efficiency of multi-tenant systems built on the Cloudflare Developer Platform.
  • Use structured logs, metrics, traces, dashboards, and alerts to understand service behavior; participate in production support and incident response.
  • Investigate customer issues across multiple services, distinguishing product defects from upstream failures, policy configuration, and infrastructure dependencies.
  • Collaborate with product, security, and engineering partners to turn customer needs and emerging standards into maintainable product capabilities.

Qualifications

  • 4+ years of experience building and operating distributed systems, backend services, network services, or infrastructure products in production.
  • Strong programming skills in TypeScript, JavaScript, Go, Rust, C++, or another language used to build production services.
  • Experience independently delivering changes to a production service, including testing, deployment, monitoring, and follow-up.
  • A solid understanding of HTTP, APIs, proxies, streaming connections, and common distributed-systems failure modes.
  • Experience debugging production systems using logs, metrics, traces, error reporting, and customer-provided evidence.
  • Ability to reason carefully about security boundaries, credential handling, concurrency, state management, and backward-compatible deployments.
  • Clear written and verbal communication skills, including the ability to explain technical tradeoffs and coordinate work across team boundaries.
  • Applicants should provide a resume or CV describing relevant engineering and operational experience.

Skills

Required:Distributed systems design and operationProgramming (TypeScript, JavaScript, Go, Rust, C++, or similarSecurity and authentication knowledge
Last updated Oct 14, 2026. Interested? Apply on the company site.

About Cloudflare

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