Senior Software Engineer

Visa · Remote - Brazil, BR · remote Visa's Investments tribe builds and operates financial-market infrastructure at the heart of the modern financial system. We're looking for a Senior Software Engineer to design, build, and operate reliable software for our Investments products while helping the squad deliver faster, safer, and smarter through the practical use of AI. You will contribute across the software development lifecycle, from solution design and implementation to testing, deployment, observability, and production support. You will apply strong engineering judgment, collaborate closely with product and technical partners, support other engineers through thoughtful reviews and knowledge sharing, and help turn complex business and regulatory requirements into secure, scalable solutions. Responsibilities: Contribute to technical decisions within the squad, participating in discussions on system design, reliability, observability, technical debt, and alignment with business and regulatory needs. Design, build, test, and maintain scalable distributed services and data pipelines that operate under strict correctness, performance, and availability requirements. Use and extend AI-assisted engineering tools, skills, commands, agents, and automations that improve planning, implementation, testing, review, documentation, and delivery. Apply responsible AI practices, using approved tools, appropriate domain context, and human validation while protecting sensitive and regulated data. Improve developer experience by identifying recurring friction, reducing manual effort, and contributing reusable tooling, templates, and self-service capabilities. Deliver clean, efficient, secure, testable, and well-documented code, supported by automated tests and appropriate quality controls in the delivery pipeline. Collaborate closely with cross-functional partners across product, architecture, delivery, and operations to translate business and regulatory requirements into sound technical solutions. Communicate technical solutions, trade-offs, dependencies, and risks clearly to technical and non-technical audiences, and follow through on agreed actions. Support the growth of other engineers through constructive code reviews, pairing, documentation, knowledge sharing, and day-to-day technical guidance. Stay current with relevant technologies, especially in AI and automation, and apply them pragmatically to improve squad outcomes. Qualifications: 2 years relevant work experience with a Bachelor's degree; OR 5 years relevant work experience; Strong hands-on experience with Go as the primary programming language. Strong knowledge and hands-on experience designing, building, and operating scalable microservices, with a solid understanding of distributed systems and common architectural trade-offs.