Cloudflare Logo

Cloudflare

Systems Engineer, Challenges & Turnstile

Posted 2 Days Ago
Be an Early Applicant
Hybrid
Lisbon
Junior
Hybrid
Lisbon
Junior
As a Systems Engineer at Cloudflare, you'll enhance bot and human detection capabilities, engage in full-stack development, and build scalable software tailored for security and privacy. Your role will also involve addressing technical issues as needed, showcasing problem-solving and adaptability skills.
The summary above was generated by AI

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.

Similar Jobs at Cloudflare

17 Hours Ago
2 Locations
Senior level
Senior level
Cloud • Information Technology • Security • Software • Cybersecurity
As a Senior Software Engineer, you will work on building large-scale networking solutions on Linux, contributing to a kernel-based networking dataplane, userspace services for Network Services, and firewall functions. Your role will focus on improving performance and scalability while collaborating with engineers in a dynamic environment.
20 Hours Ago
Hybrid
3 Locations
Mid level
Mid level
Cloud • Information Technology • Security • Software • Cybersecurity
The role involves working on the Workers Runtime team to enhance performance, improve API surface area, and manage system resources effectively while ensuring security. The engineer will build innovative solutions that meet business goals and will own the code in production, working in a fast-paced environment.
Junior
Cloud • Information Technology • Security • Software • Cybersecurity
As a Distributed Systems Engineer, you will build and operate software that supports over 25 million internet properties. Your responsibilities include developing secure and high-performance distributed systems and optimizing complex solutions for global scale deployments across numerous cities. You will also debug systems, monitor production environments, and design APIs.

What you need to know about the Ottawa Tech Scene

The capital city of Canada and the nation's fourth-largest urban area, Ottawa has proven a rapidly growing global tech hub. With over 1,800 tech companies, many of which are leaders in their sectors, the city's tech talent now makes up more than 13 percent of its total workforce. This growth is driven not only by the big players like UL Solutions and Dropbox, but also by a thriving startup ecosystem, as new businesses emerge to follow in the footsteps of those that came before them.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account