C

Cloudflare

Secures websites and runs apps on its network

Systems Engineer - MCP Portals

Backend EngineeringConfirmed live in the last 24 hours
Full-timeLisbon, Portugal

About the Job

Requirements

  • At least 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.

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 the 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.

Desired Qualifications

  • Experience with authentication and authorization technologies such as OAuth 2.0, OpenID Connect, JWTs, PKCE, or policy-based access control.
  • Experience with the Model Context Protocol.
  • Familiarity with the 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.

About the Company

Cloudflare

Secures websites and runs apps on its network

Cloudflare operates a network that protects websites, delivers online content and runs applications closer to their users. Businesses connect websites and internal systems to its services to filter malicious traffic, control access and improve performance, with security and computing running on shared infrastructure. Developers combine application code, object storage and databases with the network used for content delivery and traffic protection. Cloudflare earns revenue from subscriptions and usage charges, with free plans for basic features and negotiated contracts for larger organizations. Cloudflare was founded in 2009 and is headquartered in San Francisco, California.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Francisco, CA
Founded
2009

Recently Posted Jobs

Explore more opportunities at Cloudflare

See more jobs