fabian arellano

Developed an AI agent for material search and optimization that prevented nearly 500M USD in unnecessary purchases, using LangGraph, pgvector, BigQuery, and a React frontend. Accelerated code delivery by 45% and reduced debugging time by 35% through early adoption of Claude Code and GitHub Copilot.

Led the migration of Paris.cl from a Salesforce monolith to a decoupled React and Next.js architecture, achieving 99.99% uptime. Architected a high-availability backend with Node.js, NestJS, and RESTful APIs, and optimized Core Web Vitals and test automation, raising Lighthouse scores by 35%.

Directed strategic digital transformation projects under agile methodologies, reducing time-to-market by 25%. Supervised multidisciplinary engineering teams, boosting productivity by 28% and reducing production deployment errors by 33% through CI/CD and test automation improvements.

Managed high-availability cloud infrastructures and serverless architectures on AWS and Azure. Designed advanced CI/CD pipelines that accelerated feature delivery by 40%.

Designed and implemented scalable intranet modules and mobile applications using modern JavaScript, achieving an 88% user adoption rate in the first six months. Improved UX satisfaction by 20% through intuitive UI development and secure API integrations.

Developed critical financial software for automated reconciliation of high-volume banking data using .NET Core and SQL Server/MySQL, reducing transaction processing times by 25%. Created a .NET/ASP.NET application to translate check signature cards, reducing digitization errors to 2-3%.

Engineered custom solutions and enterprise systems for debt collection and complex financial flows, optimizing internal processes and achieving a 15% increase in operational efficiency through workflow automation.

Pursued a degree in Computer Engineering with a focus on software engineering, data structures, algorithms, and relational database design.