About the position
- You’ll be responsible for connecting internal and external APIs, designing scalable architecture, and making our dispute handling smarter, faster, and more autonomous.
What You'll Be Doing
- Strong back-end development experience (3+ years), regardless of primary programming language.
- Experience with RESTful APIs, background jobs, and service integrations.
- Passion for refactoring legacy code and designing scalable solutions.
- Understanding of payment networks (Visa/Mastercard) and/or chargeback operations is a strong plus.
- Familiarity with AI tools or APIs (e.g., OpenAI, LangChain, ML models) is a nice-to-have.
- Ownership mindset and willingness to build from scratch.
- Willingness to occasionally work with Ruby, as part of the existing system is built on it.
What You Need To Succeed
- Strong Ruby/Rails experience (at least 3 years)
- Experience with RESTful APIs, background jobs, and service integrations
- Passion for refactoring legacy code and designing scalable solutions
- Understanding of payment networks (Visa/Mastercard) and/or chargeback operations is a big plus
- Familiarity with AI tools or APIs (e.g. OpenAI, Langchain, ML models) is a nice-to-have
- Ownership mindset and a willingness to build from scratch
Top Skills
What We Do
We are democratizing the payments industry in Brazil, by empowering entrepreneurs through technological, inclusive, and life-changing solutions. Based in Brazil, CloudWalk is a high-end global payment network built on modern technology and proprietary blockchain, focused in bringing a revolution to the payment ecosystem for small and medium-sized businesses. As a unicorn, the company has provided its customers with more than R$ 1 billion in savings by charging fair fees on its transactions and is now present in more than 300.000 businesses across 5.000 brazilian cities. With investors such as the Valor Capital Group, HIVE Ventures and Coatue, the company has already raised US$ 365.5 million in investments and R$3.4 billion in FDICs for anticipation of receivables in its network of financial solutions. In 2022, it was the only brazilian fintech to be featured in the "The Retail Tech 100" ranking by CB Insights, on the "Protection Solutions for Payments and Frauds".
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