Senior Full Stack Software Engineer

Investigated and resolved production issues for a multi-service payment collection platform serving POS, QR, and bill-payment flows. Reproduced failures from incomplete merchant and internal-support reports and traced root causes across frontend, API, and database layers using logs, network inspection, and SQL queries.

Designed and built backend services using NestJS, Prisma ORM, Clean Architecture, and Domain-Driven Design, including stateless token authentication and access control. Built a unified merchant reporting module, optimized slow queries, reduced report load time by 30%, and documented recurring incidents and resolution runbooks.

Triaged and resolved user-reported issues in an enterprise Document Management System. Reproduced defects, isolated root causes across frontend and backend services, and communicated findings clearly to non-technical users.

Refactored and modularized legacy modules using SOLID principles and design patterns, improving component loading performance and reducing service-consumption failures. Partnered with QA and product stakeholders to validate fixes, test edge cases, and identify recurring defect patterns.

Modularized the frontend codebase, upgraded the framework version, and redesigned the toyota.bo website using UI/UX best practices. Improved page-load performance and reduced bundle size by 25%.

Designed and implemented frontend, backend, and mobile modules for the toyosa.com and kaizenmotors.com e-commerce platforms. Integrated Elasticsearch for spare-parts search and monitored checkout, catalog, and search behavior through logs and database queries to resolve transaction-impacting production defects.

Graduated in Systems Engineering. Earned first place at the Multidisciplinary Fair of Innovative Projects.