Alex Samuel Benavidez Zelaya

Owned end-to-end backend services and API development in a high-volume financial environment. Led third-party integrations with payment gateways (CyberSource/Visa), ensuring secure and reliable system communication. Gathered requirements with stakeholders and delivered scalable solutions with minimal supervision. Optimized database queries and backend processes to improve performance and reliability in high-load conditions. Designed and developed scalable backend microservices using .NET following Clean Architecture principles. Collaborated with cross-functional teams (Product, QA, stakeholders) to translate business requirements into technical solutions. Provided production support for mission-critical systems, maintaining high availability (~99.9%) and rapid incident resolution. Built and consumed REST APIs for data exchange between internal systems and external providers.

Developed and maintained a Tourism Information System using Java/Spring and PostgreSQL. Built modular UI components and backend services to support multiple internal and external users. Designed and optimized complex SQL queries and contributed to database design and reporting systems.