Mag. Mario Arancibia

• Built an invoice integrator for a major client, connecting SAP B1 to SAP S/4HANA, supporting partial ERP migration. • Built a web portal for a major client to generate Excel journal reports from SAP B1, with user tracking and audit history. • Built projects, including JWT auth APIs, web scrapers, microservices, and CRUD apps, to teach students practical skills. • Mentored students 1:1 in full-stack development using HTML, CSS, JavaScript, TypeScript, React, Node.js, SQL, and MongoDB.

• Built and maintained microservices for Salfa, handling car bookings, payments, auth, document management, reporting, maintenance scheduling, and API integrations. • Built an online asset auction platform for Tattersall, supporting 170 auctions per year with approximately 100 offers each. • Implemented CI/CD pipelines with automated tests and containers, ensuring consistent releases. • Mentored developers through code reviews and best practices, improving code quality and team performance.

Tech: Next.js, Express.js, PostgreSQL, Docker, AWS • Built an API integrating the company’s global web ordering with ERPs in Chile and Argentina, processing over 3,000 orders daily. • Implemented the store locator on the Essilor website using Google Maps API, allowing location searches in real time. • Led integration of the LATAM MEyes sales report with France HQ, improving cross-regional financial analysis. • Led SAP invoicing integration between Chile and Peru, providing real-time billing insights.

Tech: PHP, MySQL, SAP HANA, Docker • Built an order management system integrating major clients GMO and OPV, the lens calculator, and SAP Business One, automating 80% of order fulfillment. • Led a company-wide ERP migration to SAP Business One, reducing operational costs by 39% and digitalizing invoicing. • Migrated the company’s MEyes sales report to SAP, rebuilding queries from scratch. • Implemented high-availability backup internet across eight locations, achieving 98% uptime.

Tech: PHP, MySQL, Linux • Built real-time KPI dashboards with automated PDF and Excel email reports, saving five hours of manual reporting per day. • Developed a simulation model in Arena, increasing production efficiency by 18%. • Migrated the lens calculator server, enabling API integration and improving performance. • Consolidated 21 physical servers onto 4, reducing hardware and maintenance.

Master’s in Computer Engineering and Informatics, ZAB Recognition, Germany