Architected and delivered a globally distributed web and React Native mobile application for TELUS SmartHome+, supporting millions of connected IoT devices and enabling CSR agents across North America, Central America, and India to manage and troubleshoot customer environments from both platforms. Achieved ~40% faster load times and 99.9%+ SLA using AWS CloudFront, S3, and EC2. Built high-performance frontend systems (React, TypeScript, TanStack Query, Storybook) and designed scalable APIs (Node.js, Express). Leveraged AWS Lambda, API Gateway, SNS, DynamoDB, OpenSearch, and Redis. Implemented IaC using AWS CDK and CI/CD pipelines with AWS CodePipeline. Built observability into the platform from the ground up — CloudWatch dashboards, centralized logging, custom metrics, and alerting via Opsgenie — cutting incident response and resolution time by ~50%. Applied AI across the engineering workflow: used GitHub Copilot, Amazon Q, Claude Code, and Cursor to automate PR reviews, documentation, and operational reporting (reducing manual workload by ~60%), and ran structured experimentation with LLM APIs and prompting techniques to evaluate AI-assisted developer workflows and automate knowledge retrieval.

Built and launched a full-stack educational e-commerce platform using Spring Boot, Java, Kotlin, and Python (Django/FastAPI), driving a ~40% increase in course sales. Developed RESTful APIs and microservices integrated with PostgreSQL and DynamoDB. Engineered frontend applications using React.js, and built a companion React Native mobile quiz application enabling students to practice course concepts and track progress from their mobile devices. Integrated secure payment systems (Págalo, 2Checkout, Stripe), improving payment completion rates and reducing checkout friction. Automated regulatory and financial workflows with SAT and InFile integrations, reducing manual processing and improving compliance accuracy. Supported digital marketing initiatives by integrating Google Analytics and Facebook Analytics to inform data-driven growth decisions.

Developed and deployed full-stack features for a PropTech platform in partnership with Hogares ISN, one of the largest residential real estate companies in Guatemala, enabling users to search, compare, and evaluate residential and commercial properties. Built responsive UI components using React.js and Bootstrap, and implemented advanced property search, filtering, and listing management features to improve the home-buying experience. Developed and integrated backend services and REST APIs using Python (Django and FastAPI), supporting scalable application functionality and seamless frontend-backend communication. Collaborated closely with design teams using Figma to translate UI/UX mockups into production-ready components, streamlining the design-to-development handoff process. Applied React best practices (component structure, rendering optimization, state management) to improve performance, and participated in Agile workflows using Jira and Bitbucket for sprint planning and version control.