Manual QA Engineer. Spanish

I analyzed end-to-end payment, balance, movement, and reconciliation flows, identifying functional impacts and ensuring traceability across critical financial processes. I documented user stories, acceptance criteria, use cases, and functional requirements in collaboration with business, technology, and UX teams.

I validated payment integrations and transactional behavior, supported incident resolution, and participated in production deployments and Go/No-Go decisions. I used SQL and product metrics to assess behavior, identify improvement opportunities, and help improve payment efficiency and customer experience.

I worked with the Onboarding, Crypto, Cards, and Payments teams, participating in integrations with banking networks such as COELSA. I validated payment and transfer flows for critical transactional processes and analyzed end-to-end financial processes to identify inconsistencies and define functional validations.

I documented acceptance criteria, user stories, and functional validations, collaborating with product, development, and business teams in agile environments. I also investigated transaction errors and backend integrations, used SQL to analyze data and product behavior, and proposed improvements to increase product stability and reliability.

I worked on web and mobile digital projects for regional clients, focusing on functional analysis and quality assurance for business-oriented products. I analyzed and validated user stories, use cases, and acceptance criteria, maintaining traceability between requirements, proposed solutions, and implementation.

I defined functional validation strategies for critical end-to-end flows, supported production releases and Go/No-Go decisions, and monitored quality and performance KPIs. I used SQL to validate data integrity and Firebase Analytics to analyze user behavior, while mentoring new team members and collaborating with multidisciplinary Scrum teams.

I validated core banking processes, including accounts, transfers, and financial movements, ensuring data integrity, traceability, and consistency. I analyzed and defined functional requirements for financial products, aligning business, technology, and regulatory needs.

I developed and maintained COBOL solutions for financial systems under IBM standards and performed SQL validations for critical financial processes. I collaborated on functional testing, end-to-end validation, and production deployments to maintain system stability and operational continuity.

I participated in the evolution of core financial systems for a European banking entity, La Caixa. I developed JCL in mainframe environments and supported the implementation and validation of solutions in critical systems.

I analyzed billing and collections processes from both functional and technical perspectives, contributing knowledge of core financial processes. I also carried out unit testing in high-complexity environments.

I worked as an Engine Programmer in enterprise technology environments. My role contributed to the development and maintenance of software solutions in a structured engineering setting.

I developed experience working with complex systems, technical processes, and cross-functional teams, establishing the technical foundation for my later work in financial systems, functional analysis, and quality assurance.