Visa

Overview

The anti-fraud team works with two main systems, one of which is responsible for monitoring transactions and then communicating with third parties to verify whether the transactions are in order or if it is an attempted fraud, and another system that assists other modules in calculating fees and the like.

About Visa

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

Requirements & Eligibility

• Must be based in Brazil
• Proficiency in English at B2 level or above
• 5 or more years of relevant work experience with a Bachelor's or Associate’s Degree or at least 2 years of work experience with an Advanced degree
• Experience with Golang
• Experience with Financial Industry or Payments / Authorization Systems
• Advanced Git user
• Proficient with Terraform, Argo, Jenkins, Codefresh
• Strong relational database design and non-relational strategy

Key Responsibilities

• Develop and maintain applications using Golang or Java, following clean code and best software engineering practices.
• Design and implement scalable, reliable, and secure microservices architecture.
• Collaborate with engineering and product teams to refine and deliver technical solutions aligned with business needs.
• Leverage AWS services such as SQS, SNS, DynamoDB, S3, and EventBridge in day-to-day development.
• Use Terraform to provision, maintain, and evolve AWS infrastructure.
• Write unit and integration tests to ensure code quality and system robustness.
• Monitor application health and performance using observability tools.
• Participate in code reviews and provide constructive feedback to peers.

Interview Process