A Senior JavaScript Developer with Cloudflare experience specializes in building high-performance web applications, optimizing security, and leveraging Cloudflare’s edge computing capabilities for scalability and security.

Key Skills & Expertise

1. Advanced JavaScript & Backend Development

• Expert in ES6+ features, asynchronous programming (async/await, Promises), and modular code architecture.

• Strong experience with Node.js, Express.js, and other backend frameworks.

• Proficiency in TypeScript for scalable and maintainable code.

• Experience with WebSockets, GraphQL, and RESTful APIs.
2. Cloudflare-Specific Expertise

• Cloudflare Workers – Writing and deploying serverless functions at the edge using JavaScript or TypeScript.

• Cloudflare Pages – Deploying full-stack applications with frameworks like Next.js.

• Cloudflare KV & Durable Objects – Managing state and data storage at the edge.

• Cloudflare Zero Trust (Access & Tunnels) – Securing applications and managing access control.

• Cloudflare API Shield – Protecting API endpoints using mTLS, rate limiting, and bot detection.

• Performance Optimization – Leveraging Cloudflare caching, image optimization (Polish), and Argo Smart Routing.
3. Frontend & Full-Stack Development

• Proficiency in modern frontend frameworks like React.js, Vue.js, or Svelte.

• Experience with Next.js or Nuxt.js for server-side rendering (SSR) and static site generation (SSG).

• Implementation of lazy loading, code splitting, and performance optimizations.
4. Security & Networking

• DDoS protection & Web Application Firewall (WAF) using Cloudflare rules.

• Rate limiting and bot mitigation strategies.

• TLS, DNS, and HTTP/3 optimizations.

• Understanding of CDN strategies and edge caching.
5. DevOps & CI/CD

• Experience with Cloudflare’s CI/CD pipelines for automated deployments.

• Integration with GitHub Actions, GitLab CI/CD, or CircleCI.

• Infrastructure as Code (IaC) with Terraform for Cloudflare configurations.
Example Use Cases

• Deploying highly scalable web applications using Cloudflare Workers and KV.

• Implementing API security & rate limiting with Cloudflare WAF and API Shield.

• Creating a serverless proxy or API gateway with Cloudflare Workers.

• Optimizing performance through intelligent caching & Argo routing.

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