• Design, develop, and evolve platform functionalities focused on interest calculation and financial processing, ensuring consistency, scalability, and cost‑efficient solutions • Contribute to feature evolution and system maintenance within a hybrid architecture, including Java‑based microservices and transactional processing using Big Data tools such as Databricks and Airflow • Support the team by identifying and removing technical impediments, promoting continuous improvement and operational excellence • Coordinate technical refinement activities based on business specifications, translating functional requirements into scalable technical solutions • Communicate effectively with stakeholders throughout the product development lifecycle, keeping them informed of progress, risks, and dependencies • Develop technical tasks, prioritize work items, and actively manage the backlog in alignment with product roadmaps and delivery goals • Leverage available AI‑assisted development tools to improve team processes, development efficiency, and code quality • Conduct stress, load, and performance testing to validate system reliability and scalability under high‑throughput conditions • Demonstrate strong technical understanding to analyze requirements and contribute to solution design with minimal guidance • Identify, propose, and implement improvements to system design and interface features across one or more project components • Apply standard software engineering practices using programming languages such as Java and Python to deliver high‑quality, maintainable code • Collaborate with cross‑functional teams to pilot new technologies and capabilities that enhance system performance and user experience • Analyze and debug issues in distributed systems, using appropriate tools to validate assumptions and resolve defects efficiently

• Design, develop, and operate Interest Engine for configuring and calculating interest across core banking products • Develop functionalities on the platform, manage feature evolution/system maintenance • Support team and remove technical impediments, coordinate technical refinement based on business specifications • Communicate with stakeholders during product development • Develop technical tasks, prioritize and manage backlog • Use AI Tools to improve team processes • Conduct stress/performance tests • Apply standard processes using programming languages (e.g. Java, Python) • Collaborate on piloting new technology capabilities and features • Analyze bugs and apply debugging tools

• Develop and maintain scalable, reliable, and secure services deployed in highly distributed environments, contributing to systems that impact a large global customer base. • Design and implement robust, scalable, and high-availability software solutions that support Visa’s Payment Services, Transaction Platforms, Real-Time Payments, and Buy Now Pay Later technologies. • Collaborate cross-functionally with Product, Engineering, DevOps, QA, and Agile teams to create design artifacts and deliver best-in-class software solutions across multiple technical offerings. • Actively participate in all stages of the software development lifecycle, including technical planning, system design, implementation, testing, deployment, and production support. • Contribute to product quality improvements, new business flows, and valuable service technologies within diverse agile squads. • Develop clean, efficient, testable, and well-documented code following established engineering standards and best practices. • Design and operate microservices-based architectures, understanding trade-offs related to scalability, reliability, performance, and maintainability. • Build and maintain RESTful APIs and backend services that support e-commerce, B2B, and business-to-government solutions. • Write and maintain automated tests (unit and integration) to ensure system quality and resilience. • Analyze, debug, and resolve issues in distributed and high-availability systems using appropriate debugging and observability tools. • Collaborate in code reviews, contributing feedback that improves code quality, system design, and overall platform stability. • Support the adoption of new technologies, tools, and practices that enhance developer experience and system reliability. • Contribute to architectural discussions and continuous improvement initiatives aligned with Visa’s technical and business goals. • Participate in incident response and production support activities to ensure system stability and operational excellence. • Engage in mentorship, knowledge sharing, and continuous learning opportunities, contributing to both local and global impact. • Be recognized for delivering high-quality, scalable, and impactful technical solutions.

• Desarrollo de aplicaciones nativas para iOS utilizando Swift y SwiftUI • Colaboración en proyectos actuales dentro del equipo de Desarrollo • Implementación de arquitecturas MVVM en nuevas aplicaciones • Uso de herramientas de monitorización como Crashlytics y Datadog • Automatización del flujo de trabajo de desarrollo utilizando CI/CD • Testing y aseguramiento de calidad de software • Participar en la toma de decisiones técnicas sobre diseño de la aplicación