Cloudflare Tech Stack

Global connectivity cloud for security, performance, and network infrastructure

Computer and Network Security San Francisco, California 1,001–5,000 employees Founded 2009 Public Company

Cloudflare operates a planetary-scale network handling billions of daily threats for millions of organizations. The stack reveals a company building at infrastructure depth—Rust, C++, WebAssembly, and custom protocols (BGP, QUIC, HTTP/3) sit alongside edge-compute primitives (Durable Objects, Workers)—while actively migrating internal systems toward their own products (Cloudflare One, Workers AI, R2). The hiring mix is balanced between large sales (446 roles) and engineering (420) cohorts, with concurrent work on secrets management, PKI re-architecture, and enterprise readiness, signaling a push deeper into the Fortune 500.

Tech Stack 190 technologies

Core StackJavaScript TypeScript Rust C++ Kubernetes Prometheus Salesforce Puppet Ansible Linux Hugging Face Durable Objects AWS WAF API Gateway SSL WebAssembly Cloudflare Workers R2 LinkedIn Sales Navigator Outreach Salt Chef BGP C TCP/IP UDP DNS QUIC HTTP/3 STUN+153 more

AdoptingDurable Objects MCP Cloudflare Workers Workers AI R2 Cloudflare WARP Cloudflare One SAML+11 more

ReplacingAkamai Workday

What Cloudflare Is Building

◆Challenges

Improving audit efficiency
Adopting cloudflare
Scaling data platform
Maintaining global infrastructure
Performance challenges
Scaling existing software for growing customer base
Transitioning to natural language interface
Reducing spam and attacks
Performance optimization
Growing cf1 revenue

▲Active Projects

Cdn optimization
Secure and resilient distributed systems for secrets and key management
Global dss strategy
Infrastructure process implementation
M&a
Enterprise account plans
Re-architecting internal pki
Data analytics initiatives
Building foundational services for enterprise readiness
Ai agent platform

Hiring Activity

Steady1,400 roles · 440 in 30d

Department

Sales

446

Engineering

420

Product

116

Security

108

Support

Ops

Marketing

Data

Seniority

Senior

734

Mid

299

Manager

Director

Principal

Intern

Junior

Lead

Notable leadership hires: Director of Product Management, Sales Director, Product Director, Director of Sales, Industry Lead

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About Cloudflare

Cloudflare is a public connectivity cloud platform that provides security, performance, and network services to organizations ranging from nonprofits to government and Fortune 500 enterprises. The company runs one of the world's largest interconnected networks, blocking billions of threats daily. Core offerings span CDN optimization, DDoS mitigation, DNS, WAF, Zero Trust access (Cloudflare One), and developer tools (Workers, R2). The company is headquartered in San Francisco and operates across 20+ countries with 1,001–5,000 employees.

HeadquartersSan Francisco, California

Company Size1,001–5,000 employees

Founded2009

Hiring MarketsUnited States, United Kingdom, Canada, Portugal, Netherlands, Japan, India, Mexico

Frequently Asked Questions

What tech stack does Cloudflare use?

Cloudflare's stack includes Rust, C++, JavaScript, TypeScript, WebAssembly, Kubernetes, and custom networking protocols (BGP, QUIC, HTTP/3, DNS, TCP/IP, UDP). Edge compute runs on Durable Objects and Cloudflare Workers. Storage uses R2. Infrastructure tooling includes Prometheus, Salt, Chef, Puppet, and Ansible.

What is Cloudflare working on?

Active projects include CDN optimization, secrets and key management, enterprise account planning, PKI re-architecture, foundational enterprise services, data analytics, AI agent platforms, and global distributed systems strategy. Internal challenges include scaling the data platform, performance optimization, and expanding CF1 revenue.