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Sr SW Engineer - Core Banking at Visa. Location Information: Brazil. Company Description. Founded by experienced entrepreneurs and engineers in 2016, Pismo is a technology company that provides a comprehensive processing platform for banking, card issuing and financial market infrastructure and helps customers innovate and build the next generation of banking and payment solutions. Pismo joined Visa in 2024.. Leveraging Visa’s solutions, our core platform, and an expanding suite of capabilities, Pismo addresses the technological challenges that large banks, marketplaces, and fintech companies face in migrating from legacy systems to more advanced technology in the market. Pismo’s cloud-based platform empowers firms to build and launch financial products rapidly, scaling as they grow to have a broader audience while keeping high security and availability standards.. Pismo’s 500+ employees are located in more than 10 countries around the world.. Job Description. Summary. Core banking squad is responsible for.  . providing complete banking as a service products through orchestrations with Pismo core components  and external payment providers. This team is responsible to build and maintain a very robust abstraction layer in order to offer products in a very geolocation-agnostic way.. Since orchestration is a central point in the team, knowledge of distributed transactions, resilience and integrity are extremely important for this squad.  We also have a very collaborative engineering team and a very well developed culture of documentation and estimates within the team.. What you'll do. Design, develop, and maintain scalable and resilient systems focused on banking and payment services.. Build and evolve orchestration layers integrating internal and external services.. Develop RESTful APIs and reusable components in a microservices-based architecture.. Collaborate cross-functionally with product, QA, and DevOps teams to deliver impactful solutions.. Write unit and integration tests to ensure code quality and system reliability.. Work with modern engineering best practices, prioritizing security, performance, and scalability.. Contribute to the technical design and architecture decisions within the squad.. Operate in a highly documented environment, with a focus on clear and transparent communication.. Engage in mentoring, continuous learning, and technical improvement initiatives.. 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.. Qualifications. For this role, you must be based in Brazil. Language Skills:. Proficiency in English at B1 level (Intermediate). Technical Skills:. At least 6 months of experience working with Go (Golang) in production environments. Experience with programming languages such as Java. Solid understanding of microservices architecture and distributed systems.. Experience with REST APIs and modern backend development practices.. Familiarity with version control (Git) and continuous integration workflows.. Ability to debug and troubleshoot issues in complex systems.. Strong focus on testing and software quality.. Desirable Qualifications. Experience working in high-scale and high-availability environments.. Familiarity with CI/CD pipelines and Docker/Containers.. Knowledge of messaging systems and event-driven architectures.. Understanding of observability practices (monitoring, tracing, alerting).. Background in Agile methodologies and production support.. Hands-on experience with Terraform or other IaC tools.. Additional Information. Visa is an EEO Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.