Led the design, development, and implementation of an Internal Financial Control Web Application, centralizing fund requests, accountability, and approvals, thereby improving traceability and management. Implemented authentication with JSON Web Tokens and role-based access for financial and commercial modules. Developed and deployed a Treasury Module and dashboards for budget visualization and request control, facilitating faster management decisions. Maintained the application infrastructure on AWS. Designed and developed a business reporting and analysis application to streamline information retrieval and centralize data, including dashboards for sales trends. Maintained the Commercial Web Application, managing REST APIs for integration with the Bolivian National Taxes Service, and improved inter-system communication using internal APIs. Developed and optimized a Pre-sales and Delivery Mobile Application with offline order functionality and improved background geolocation tracking. Planned and executed the migration of systems to a new physical server, configuring a virtualized environment for accounting, sales, and inventory systems. Administered modules of the SimecSoft System (Inventory, Accounting, HR), managing database structures and connections. Created customized reports using SQL queries.

Led development of financial web applications using Node.js and PostgreSQL, implemented complex RBAC systems with JWT, managed CI/CD pipelines with GitHub Actions, and deployed infrastructure on AWS (EC2, RDS, ALB). Developed mobile solutions using Ionic and maintained integrations with national tax billing services.

Developed the Pre-Sales and Delivery Mobile Application, including background geolocation for tracking, integration with Bluetooth thermal portable printers, generation of receipts, and sales/collection reports, synchronizing with the Commercial Web Application via REST APIs. Participated in the development and ongoing maintenance of Sales, Deliveries, and Pre-Sales modules of the Commercial Web Application.

Developed and maintained mobile applications for sales and deliveries with offline-first capabilities, background geolocation, and Bluetooth printer integration, while synchronizing data with internal REST APIs.