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Salary: EUR 45,000 - 62,000 / annual
Cloudflare is building MCP Server Portals—a secure, centralized platform that enables AI agents to connect to internal and third-party tools. As a Systems Engineer on the MCP Portals team, you will design, build, and operate the distributed systems that authenticate users, manage OAuth credentials and sessions, enforce Zero Trust policies, and proxy MCP traffic across Cloudflare's global network.
You will collaborate with engineers and product managers across Access, Gateway, and Developer Platform teams to advance a rapidly evolving protocol and product. This role offers the opportunity to solve ambiguous systems problems while taking responsibility for services in production.
Key responsibilities include:
- Design, build, and operate globally distributed services connecting MCP clients to authorized upstream MCP servers
- Evolve implementation as the MCP specification changes
- Build secure authentication and authorization flows involving Cloudflare Access, OAuth, identity, and delegated access
- Improve reliability, scalability, latency, and resource efficiency of multi-tenant systems on the Cloudflare Developer Platform
- Develop observability through structured logs, metrics, traces, dashboards, and actionable alerts
- Participate in production support and incident response
- Investigate customer issues across multiple services, distinguishing product defects from upstream failures and infrastructure dependencies
- Collaborate with product, security, and engineering partners to turn customer needs into well-tested, maintainable capabilities
Requirements:
Must Have:
- Experience building and operating reliable distributed systems, backend services, network services, or infrastructure products in production
- Strong programming skills in TypeScript, JavaScript, Go, Rust, C++, or another systems-oriented language
- 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 with ability to coordinate investigations and solutions across team boundaries
Nice to Have:
- Experience with authentication and authorization technologies (OAuth 2.0, OpenID Connect, JWTs, PKCE, policy-based access control)
- Experience with Model Context Protocol or other rapidly evolving application protocols
- Familiarity with Cloudflare Developer Platform or other serverless edge-computing platforms
- Experience building gateways, forward proxies, identity systems, developer platforms, or Zero Trust and data loss prevention products
