Sr Software Engineer (Disputes, Fintech)

TL;DR

Sr Software Engineer (Disputes, Fintech): Building and evolving a highly reliable platform that manages the full chargeback lifecycle from dispute creation through pre-arbitration and resolution with an accent on issuer efficiency, automation, and network compliance. Focus on developing scalable microservices, event-driven solutions using AWS services, and ensuring high availability and synchronization in payments processing.

Location: Must be based in Brazil. Remote position; may require presence at a Visa office with scheduled notice.

Company

Technology company providing a cloud-based processing platform for banking, card issuing, and financial market infrastructure. Joined Visa in 2024 with 500+ employees across more than 10 countries.

What you will do

• Develop and maintain services using Golang (and Java/JVM when needed) following clean code practices.
• Design and implement scalable, reliable microservices on AWS, evaluating trade-offs in performance and resilience.
• Build event-driven solutions with AWS services like SQS, SNS, DynamoDB, S3, and EventBridge.
• Use Terraform for infrastructure-as-code and maintain automated tests for code quality.
• Work with SQL databases at scale and monitor service health using observability tools.
• Participate in code reviews, architectural discussions, and resolving issues in distributed systems.

Requirements

• Based in Brazil.
• English proficiency at B1 level or above.
• Golang hands-on experience; ability to work with Java/Groovy or JVM languages.
• Advanced Git usage and experience with AWS for cloud-native high-availability solutions.
• Event-driven architectures with SQS/SNS, EventBridge, DynamoDB, S3.
• Experience with microservices, Terraform, CI/CD, SQL, observability, and testing strategies.
• Background in financial services, payments, or authorization systems preferred.

Culture & Benefits

• Work in a high-availability, high-compliance environment supporting major payment networks.
• Collaborate closely with engineering and product teams.
• Remote work with potential occasional office presence.