Engineer Ruby

São Paulo - Brazil

Monthly Salary: Not Disclosed

Posted on: 30+ days ago

Vacancies: 1 Vacancy

Job Summary

About the position

Were looking for aRuby Developerto help usautomate and scale our entire chargeback process across both ouracquiringandissuingoperations.
In this role you will work on building and refactoring robust dispute flows integrating with major card networks likeVisaandMastercard and leveragingAI APIsto bring intelligence and automation to the core of our operation.
Youll be responsible for connecting internal and external APIs designing scalable architecture and making our dispute handling smarter faster and more autonomous.

What Youll Be Doing

Refactor and scale existing chargeback and dispute handling flows written in Ruby
Integrate with external APIs fromVisaMastercard and other partners
Work withAI APIs (generative and/or machine learning)to automate analysis decision-making and documentation
Build resilient services to support end-to-end chargeback processes for both issuing and acquiring
Collaborate with product data and operations teams to deeply understand business rules and pain points
Write clean maintainable code and contribute to a culture of continuous improvement

What You Need To Succeed

Strong Ruby/Rails experience(at least 3 years)
Experience withRESTful APIs background jobs and service integrations
Passion forrefactoring legacy codeand designing scalable solutions
Understanding ofpayment networks (Visa/Mastercard)and/orchargeback operationsis a big plus
Familiarity withAI tools or APIs(e.g. OpenAI Langchain ML models) is a nice-to-have
Ownership mindset and a willingness to build from scratch

We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications analyzing resumes or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us.

About the positionWere looking for aRuby Developerto help usautomate and scale our entire chargeback process across both ouracquiringandissuingoperations.In this role you will work on building and refactoring robust dispute flows integrating with major card networks likeVisaandMastercard and leverag...