Santiago – Node.js, AWS, Typescript

B2B marketplace connecting veterinary clinics with pharmaceutical vendors in the USA, replacing a legacy Visual Basic + Access workflow with a centralized, modern web platform for pricing and purchasing.

• Led the migration from a legacy Visual Basic + Access system to a modern web platform.​
• Designed and implemented the frontend and backend architecture using Next.js, Prisma, and PostgreSQL.​
• Built a data ingestion pipeline to normalize legacy Excel/Access datasets.​
• Imported external datasets from multiple vendors and consolidated them into a unified product catalog.
• Implemented data analytics workflows to generate reports and dashboards for pricing, sales, and product performance.
• Exposed analytics data through secure APIs for internal stakeholders.
• Developed core product flows in Next.js, including vendor catalogs, pricing logic, and ordering.​
• Collaborated with stakeholders to translate complex business rules into scalable product features.​
• Set up CI/CD pipelines and infrastructure using Vercel, Docker, and AWS services.​
• Optimized database schema and queries to improve pricing and product performance.​
• Mentored developers and established code quality and architectural standards.

Backend platform for a neurostimulation device focused on improving sleep quality. The system supports device communication, user management, subscriptions, and data processing at scale.

• Designed the backend architecture and AWS infrastructure from scratch.
• Implemented Terraform-based infrastructure for ECS, RDS, S3, and networking.
• Built a TypeScript Express API with Prisma and PostgreSQL (partitioned tables).
• Implemented background workers using BullMQ to offload heavy processing.
• Integrated third-party APIs for subscriptions and user management.
• Set up CI/CD pipelines and Dockerized the entire system.
• Wrote Unit and integration tests to ensure system reliability and scalability

Financial platform modernization project focused on improving performance and maintainability.

• Refactored and migrated a legacy Laravel backend to Node.js.
• Improved system performance and stability through targeted refactors.
• Conducted code reviews and enforced best practices.
• Mentored junior developers during the migration process.

Backend system for a veterinary appointment scheduling and health data management application.

• Designed backend architecture and AWS infrastructure.
• Implemented CI/CD pipelines and automated deployments.
• Debugged and resolved performance and reliability issues.
• Provided technical guidance to junior developers during development.

Backend system for a drug data management platform used to handle pharmaceutical information and structured medical datasets. The application supports data processing, validation, and API-based access to drug-related data.

• Developed backend features using Nest.js and TypeScript.
• Implemented and maintained REST APIs for structured drug data access.
• Worked with PostgreSQL to ensure data consistency and performance.
• Wrote unit tests to improve reliability and prevent regressions.
• Collaborated with cross-functional teams to deliver features aligned with business requirements.