Sr. SW Engineer, Authorizations

About Us

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.

At Visa, you'll have the opportunity to create impact at scale — tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world.

Join Visa and do work that matters – to you, to your community, and to the world. Progress starts with you.

Job Description

Summary

The Authorizations squad is responsible for processing and validating financial transactions in real time, ensuring that all operations comply with authorization rules defined by issuers and clients. The team operates within the critical payment authorization layer, dealing with complex business logic, high availability, and high‑performance requirements. Working with modern technologies and distributed architectures, the squad ensures that transactions are secure, fast, and reliable.

What You'll Do

Develop and maintain scalable, reliable, and secure backend services focused on banking and payment authorization systems, primarily using Golang, with strong exposure to JVM‑based technologies such as Java and Groovy, deployed on AWS.

Own the delivery of clean, efficient, testable, and well‑documented code aligned with the squad’s technical strategy and business goals.

Actively participate in all stages of the software development lifecycle, including technical planning, system design, implementation, testing, deployment, and production support for mission‑critical systems.

Design, build, and evolve scalable microservices architectures and orchestration layers, integrating internal and external services while evaluating trade‑offs related to performance, reliability, and maintainability.

Develop RESTful APIs and reusable components, ensuring high standards of security, scalability, and performance in distributed systems.

Write and maintain robust automated tests (unit and integration), ensuring code quality, system resilience, and operational stability.

Collaborate closely with product managers, QA engineers, and DevOps partners to translate business and regulatory requirements into effective technical solutions.

Contribute to technical design, architectural discussions, and decision‑making within the squad, supporting continuous improvement and long‑term platform evolution.

Operate in a highly documented environment, prioritizing clear, transparent communication and knowledge sharing.

Ensure system stability and reliability by supporting incident response activities and production support in high‑availability environments.

Engage in mentoring, continuous learning, and technical improvement initiatives, contributing to squad and collective‑level engineering excellence.

Stay up to date with modern engineering best practices, particularly related to distributed systems, payments, and cloud‑native architectures.

Be recognized for delivering high‑quality, impactful technical solutions within a critical authorization domain.

This is a remote position. A remote position does not require job duties be performed within proximity of a Visa office location. Remote positions may be required to be present at a Visa office with scheduled notice. #LI‑Remote

Qualifications

For this role, you must be based in Brazil

Language Skills

Proficiency in English at B1 level or above (Intermediate)

Technical Skills

5+ years of experience as a Software Engineer working in production environments, preferably in high‑scale or high‑availability systems.

Strong experience with Golang and solid proficiency with JVM‑based languages such as Java and Groovy.

Advanced Git usage, including managing complex version control and collaboration workflows.

Solid experience designing and operating microservices‑based and distributed systems.

Proven ability to debug, troubleshoot, and resolve issues in distributed, mission‑critical environments.

Strong testing mindset with hands‑on experience in unit and integration testing.

Experience designing, implementing, and documenting RESTful APIs.

Proficiency with AWS services such as SQS, SNS, DynamoDB, S3, and EventBridge, building event‑driven and cloud‑native solutions.

Hands‑on experience with CI/CD pipelines, containers, and cloud‑native deployment processes.

Experience with Infrastructure as Code using tools such as Terraform or similar.

Advanced usage or strong familiarity with Docker and containerized environments.

Solid understanding of relational databases (such as MySQL or PostgreSQL) and NoSQL databases (such as DynamoDB or MongoDB).

Understanding of observability practices including monitoring, logging, tracing, and alerting.

Ability to actively contribute to technical decisions related to scalability, reliability, performance, and system evolution.

Preferred Qualifications

Experience working with critical or mission‑critical systems.

Experience in the Financial Industry or with Payments / Authorization Systems.

Familiarity with event‑driven architectures and messaging systems.

Experience supporting production environments and incident response in Agile teams.

AWS certifications.

Experience using AI‑assisted development tools (e.g., Copilot, GPT, Claude) to improve development efficiency and quality.

3 or more years of work experience with a Bachelor’s Degree or more than 2 years of work experience with an Advanced Degree (e.g., Master’s, MBA).