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Senior Software Engineer - Cloudflare One

Job Overview

Location

Hybrid

Job Type

Full-time

Category

Software Engineer

Date Posted

February 24, 2026

Full Job Description

đź“‹ Description

  • • Join Cloudflare, a company at the forefront of building a better Internet, as a Senior Software Engineer on our Cloudflare One teams. You will play a pivotal role in developing and scaling mission-critical systems that power millions of websites and devices globally, contributing to the future of secure and performant internet access.
  • • Cloudflare One is revolutionizing enterprise networking with its cloud-based network-as-a-service solution. This integrated platform combines networking, application security, and access controls, offering organizations a unified and simplified approach to securely connect users, devices, offices, and applications, regardless of their location. It effectively replaces outdated solutions like VPNs and traditional firewalls with a modern, cloud-delivered model, ensuring fast, reliable, and consistent security.
  • • As a Senior Software Engineer, you will have the unique opportunity to work across a diverse range of technologies and systems. Your contributions will be instrumental in delivering new features, enhancing performance, and significantly increasing the scalability of our Cloudflare One products.
  • • You will be involved in the entire lifecycle of our systems, from design and development to deployment and operation, all built upon Cloudflare's expansive global edge network. This role offers the chance to collaborate with some of the brightest minds in engineering and product management to tackle complex challenges that have a tangible impact on our customers and users worldwide.
  • • Our hiring process is designed to be flexible, allowing us to match your unique experience, skills, and ambitions with the team where you can make the greatest contribution. If you discover a particular team or product area that sparks your interest during the interview process, we encourage you to share it with us.
  • • Specific areas of focus for our teams include developing a high-performance Linux kernel-based networking dataplane that handles traffic from some of the world's largest networks. You may also work on a sophisticated userspace networking service that acts as a central hub, seamlessly connecting our Network Services and Zero Trust systems to enable comprehensive customer access to all products.
  • • Further opportunities involve contributing to control plane systems that empower customers to define and manage complex network configurations with ease. You could also be involved in developing products that provide customers with deep visibility into cloud and SaaS security, as well as insights into network traffic trends and product usage patterns.
  • • We are also working on backend systems that enable customers to manage their devices through our Zero Trust Network solution, and a critical MITM forward-proxy responsible for inspecting and filtering device traffic to enhance security.
  • • Additionally, you will have the chance to work with threat intelligence, integrating data from a wide array of external sources and Cloudflare's own world-class data to provide actionable intelligence across multiple Cloudflare products.
  • • Your responsibilities will encompass the full spectrum of software engineering, including designing, building, and maintaining scalable software systems tailored for global network services and Zero Trust platforms.
  • • You will develop robust, high-performance networking code, leveraging modern programming languages such as Rust and Go, which are central to our technology stack.
  • • Close collaboration with product managers and cross-functional engineering teams will be essential to deliver innovative solutions for connectivity, security, and performance challenges.
  • • You will actively participate in the design and integration of RESTful APIs and complex backend systems, with a particular emphasis on asynchronous and distributed architectures.
  • • A commitment to code quality is paramount. You will be expected to contribute through rigorous documentation, comprehensive testing, and strict adherence to industry best practices.
  • • Troubleshooting, optimizing, and scaling distributed systems deployed across our global infrastructure will be a key part of your role.
  • • You will operate at multiple layers of the technology stack, from systems-level programming involving operating systems and networking primitives to application-level development for user and API-facing components.
  • • Your work will directly contribute to the reliability, security, and scalability of Cloudflare's core infrastructure, including seamless on-premise and cloud integrations.
  • • We are seeking curious, empathetic engineers who are passionate about innovation and eager to join us in transforming the landscape of internet networking.

Skills & Technologies

Go
Rust
Express
Linux
REST
Senior
Remote
Degree Required

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About Cloudflare, Inc.

Cloudflare operates a global cloud platform that delivers security, performance, and reliability services for websites, applications, and networks. Its edge network spans hundreds of cities, providing DNS, DDoS protection, CDN, firewall, Zero Trust access, serverless compute, and developer tools. Traffic is proxied through Anycast IP addresses, applying threat intelligence and optimization before reaching origin servers. The company serves millions of customers, from individuals to large enterprises, aiming to help build a faster, safer, and more resilient Internet.

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