Software Engineer, All Levels - London & Lisbon

Cloudflare is seeking Software Engineers at all levels to join their teams in London or Lisbon in a hybrid work arrangement. As one of the world's largest network operators, Cloudflare powers and protects millions of websites and Internet properties globally. The role offers an opportunity to work on critical infrastructure that impacts the internet's performance and security across 330+ cities worldwide.

The position involves working on various sophisticated systems, from TLS/HTTP proxies and content optimization to serverless platforms and massive data pipelines processing over 250M events per second. Engineers will contribute to building robust, secure, and high-performance distributed systems that have a significant impact on internet functionality.

The ideal candidate should possess strong debugging skills, experience with continuous integration, and the ability to work with multiple programming languages, particularly Go and Rust. Knowledge of distributed systems, network protocols, and database technologies like PostgreSQL is highly valued. The role requires participation in an on-call rotation to maintain system reliability.

Cloudflare stands out not just as a technology company but as one with a strong social mission, demonstrated through initiatives like Project Galileo, which protects journalism and civil society organizations, and the Athenian Project, supporting election security. The company maintains a strong commitment to privacy and security, exemplified by their 1.1.1.1 DNS resolver service.

This is an excellent opportunity for engineers who want to work on challenging technical problems at scale while contributing to making the internet better, safer, and more powerful. The role offers the chance to work with cutting-edge technology in a company that values curiosity, critical thinking, and continuous learning.