Available Locations: Lisbon (preferred) or London
About Cloudflare and Our Team
Cloudflare's Engineering Team is home to some of the industry's top engineers, dedicated to building and scaling innovative software that handles a huge proportion of the Internet. Our team, specifically responsible for Turnstile and Challenges Pages, works in close collaboration with a dedicated Product Manager and other engineering teams to develop cutting-edge Bot detection solutions. Have a look at some of our articles mentioning Turnstile!
Working in Our Team
You'll be integral to making our product more robust, secure, and stable. Our product runs in all corners of the web, on any imaginable browser, requiring continuous testing and adaptability. We value innovation and problem-solving skills - we encourage you to bring forward problems you identify along with your best solutions. Our team syncs are centered around addressing these challenges, focusing on short and long-term solutions for maximum business value.
What You'll Do
As a Software Engineer in our team, you'll play a key role in expanding our Turnstile and Challenges products. Your responsibilities will include:
- Enhancing bot and human detection capabilities while maintaining a focus on privacy, security, and usability.
- Full-stack development - from Edge process configuration to client-side logic.
- Building scalable, secure, and privacy-conscious software to accommodate a growing user base with diverse requirements.
- This role may require flexibility to be on-call outside of standard working hours to address technical issues as needed.
About You
We're looking for an engineer with:
- Proficiency in Rust and TypeScript (or eagerness to learn)
- A security-focused mindset, essential for a product like Turnstile.
- A natural sense of curiosity and a self-driven attitude.
Bonus Points
- Experience with ClickHouse, PostgreSQL, Docker, Salt, Lua, Go, and Unix systems will be highly regarded.
- You do not need to have experience with any of these technologies!
- Previous experience with counter abuse, fraud detection and mitigation.
Top Skills
What We Do
Cloudflare, Inc. (NYSE: NET) is the leading connectivity cloud company on a mission to help build a better Internet. It empowers organizations to make their employees, applications and networks faster and more secure everywhere, while reducing complexity and cost. Cloudflare’s connectivity cloud delivers the most full-featured, unified platform of cloud-native products and developer tools, so any organization can gain the control they need to work, develop, and accelerate their business.
Powered by one of the world’s largest and most interconnected networks, Cloudflare blocks billions of threats online for its customers every day. It is trusted by millions of organizations – from the largest brands to entrepreneurs and small businesses to nonprofits, humanitarian groups, and governments across the globe.
Why Work With Us
Cloudflare employees come from all walks of life. We are mission-driven, and our team is energized by a collaborative, creative environment that celebrates our differences and fosters new ways to grow together.
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Cloudflare Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
We are committed to developing a global team that is distributed with a flexible working approach. Doing this equitably and inclusively is essential to our success. Visit our careers site for more on 'How & Where We Work.'