What is CloudWalk?

CloudWalk is an AI-first company building its own technology to bring justice to the broken payments system in Brazil. We are building what one would call a ‘self-driving bank’, and we exist to free businesses and consumers from the burden of dealing with legacy payment providers who exploit them.

Some of the challenges in the Risk area you will help to solve:

The Risk team is responsible for building the defense layer that keeps Cloudwalk, its merchants, and users safe. We keep our ecosystem healthy by tracking down malicious activity and maintaining regulatory compliance while providing the best user experience.

CloudWalk is not a corp company, we don't want corp heads. We want the crazy, the mads, the survivors. What matters to us is a deep insight into technology, passion for disruptive innovation & ability to learn fast and execute faster.

If you are resilient, curious, and resourceful, you will thrive with us. CloudWalk is not a place for lonely stars, we’re a wolfpack! To survive, we research, build, break, and rebuild. We move fast. Join us to impact millions of lives, and leave a positive mark on the world!

What You'll Be Doing:

You will work with top-level technology and have the opportunity to develop core systems from the ground up. You’ll join a team of friendly and hard-working engineers who are tackling fintech’s biggest problems.

You will work with great engineers, risk analysts, and data scientists to come up with new ideas for fraud prevention and anomaly detection. You will build scalable infrastructure to enable real-time, low-latency risk management.

What You Need To Succeed:

  • Strong Programming skills. You should have strong programming skills in order to prototype efficient, maintainable and reliable software. We work mostly in Ruby, however, languages can be learned: we care much more about your general engineering skill than knowledge of a particular language or framework
  • Web Skills: You should be comfortable working with and developing APIs.
  • Architecture Skills: you should know how to go beyond code that works and be able to think and develop systems that are part of a larger environment.
  • English communication (Portuguese is not required.)

Desirable, but not a must:

  • Experience with predictive modeling, statistical inference, and machine learning
  • Experience with in the payments industry and/or fraud prevention
  • Knowledge in Ruby


  • Health insurance for you + 1 family member
  • Life insurance
  • Meal allowance
  • Internet/ electricity allowance
  • 30 days of paid vacation
  • Full home office (live anywhere in the world)
  • ZenKlub Partnership for wellness
  • Extended maternity and paternity leaves

Diversity and Inclusion

We believe in social inclusion, respect and appreciation of all people. We promote a welcoming work environment, where each CloudWalker can be authentic, regardless of gender, ethnicity, race, religion, sexuality, mobility, disability or education.